Merge branch 'main' into taochen/python-update-sample-validation-scripts

* Update providers to use Microsoft.Extensions.Compliance.Redaction

* Fix formatting.

* Fix readme

.devcontainer/dotnet/devcontainer.json

@@ -3,6 +3,7 @@
   "image": "mcr.microsoft.com/devcontainers/dotnet",
   "features": {
     "ghcr.io/devcontainers/features/azure-cli:1.2.9": {},
+    "ghcr.io/devcontainers/features/docker-in-docker:2": {},
     "ghcr.io/devcontainers/features/github-cli:1": {
       "version": "2"
     },

.github/.linkspector.yml

@@ -20,6 +20,7 @@ ignorePatterns:
   - pattern: "https://your-resource.openai.azure.com/"
   - pattern: "http://host.docker.internal"
   - pattern: "https://openai.github.io/openai-agents-js/openai/agents/classes/"
+  - pattern: "https:\/\/dotnet.microsoft.com\/download"
 # excludedDirs:
   # Folders which include links to localhost, since it's not ignored with regular expressions
 baseUrl: https://github.com/microsoft/agent-framework/

.github/actions/python-setup/action.yml

@@ -8,6 +8,10 @@ inputs:
     os:
       description: The operating system to set up
       required: true
+    exclude-packages:
+      description: Space-separated list of packages to exclude from uv sync
+      required: false
+      default: ''
 
 runs:
     using: "composite"
@@ -19,6 +23,20 @@ runs:
             enable-cache: true
             cache-suffix: ${{ inputs.os }}-${{ inputs.python-version }}
             cache-dependency-glob: "**/uv.lock"
+      - name: Exclude incompatible workspace packages
+        if: ${{ inputs.exclude-packages != '' }}
+        shell: bash
+        run: |
+          for pkg in ${{ inputs.exclude-packages }}; do
+            for f in python/packages/*/pyproject.toml; do
+              if grep -q "name = \"$pkg\"" "$f"; then
+                pkg_dir=$(dirname "$f" | sed 's|python/||')
+                echo "Excluding workspace package: $pkg ($pkg_dir)"
+                sed -i.bak '/\[tool\.uv\.workspace\]/a\exclude = ["'"$pkg_dir"'"]' python/pyproject.toml
+                sed -i.bak '/'"$pkg"' = { workspace = true }/d' python/pyproject.toml
+              fi
+            done
+          done
       - name: Install the project
         shell: bash
         run: |

.github/actions/sample-validation-setup/action.yml

@@ -24,7 +24,9 @@ runs:
   using: "composite"
   steps:
     - name: Set up Node.js environment
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v6
+      with:
+        node-version: 22
 
     - name: Install Copilot CLI
       shell: bash

.github/scripts/stale_issue_pr_ping.py

@@ -0,0 +1,216 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+"""Scan open issues and PRs labeled 'waiting-for-author' for stale follow-ups.
+
+Team members manually add the 'waiting-for-author' label when they need a
+response from the external author.  If the author hasn't replied within
+DAYS_THRESHOLD days of the last team comment, post a reminder and add the
+'requested-info' label to prevent duplicate pings.
+"""
+
+from __future__ import annotations
+
+import os
+import sys
+import time
+from datetime import datetime, timezone
+
+from github import Auth, Github, GithubException
+from github.Issue import Issue
+from github.IssueComment import IssueComment
+
+
+PING_COMMENT = (
+    "@{author}, friendly reminder — this issue is waiting on your response. "
+    "Please share any updates when you get a chance. (This is an automated message.)"
+)
+TRIGGER_LABEL = "waiting-for-author"
+PINGED_LABEL = "requested-info"
+
+
+def get_team_members(g: Github, org: str, team_slug: str) -> set[str]:
+    """Fetch active team member usernames."""
+    try:
+        org_obj = g.get_organization(org)
+        team = org_obj.get_team_by_slug(team_slug)
+        return {m.login for m in team.get_members()}
+    except GithubException as exc:
+        if exc.status in (403, 404):
+            print(
+                f"ERROR: Failed to fetch team members for {org}/{team_slug} "
+                f"(HTTP {exc.status}). Check that the token has the 'read:org' "
+                f"scope and that the team slug '{team_slug}' is correct."
+            )
+        else:
+            print(f"ERROR: Failed to fetch team members for {org}/{team_slug}: {exc}")
+        sys.exit(1)
+    except Exception as exc:
+        print(f"ERROR: Failed to fetch team members for {org}/{team_slug}: {exc}")
+        sys.exit(1)
+
+
+def find_last_team_comment(
+    comments: list[IssueComment], team_members: set[str]
+) -> IssueComment | None:
+    """Return the most recent comment from a team member, or None."""
+    for comment in reversed(comments):
+        if comment.user and comment.user.login in team_members:
+            return comment
+    return None
+
+
+def author_replied_after(
+    comments: list[IssueComment], author: str, after: datetime
+) -> bool:
+    """Check if the issue author commented after the given timestamp."""
+    for comment in comments:
+        if (
+            comment.user
+            and comment.user.login == author
+            and comment.created_at > after
+        ):
+            return True
+    return False
+
+
+def should_ping(
+    issue: Issue,
+    team_members: set[str],
+    days_threshold: int,
+    now: datetime,
+) -> bool:
+    """Determine whether this issue/PR should be pinged.
+
+    Only issues/PRs carrying the 'waiting-for-author' label are candidates.
+    """
+    author = issue.user.login
+
+    # Skip if the trigger label is not present
+    if not any(label.name == TRIGGER_LABEL for label in issue.labels):
+        return False
+    # Skip if author is a team member
+    if author in team_members:
+        return False
+
+    # Skip if already pinged
+    if any(label.name == PINGED_LABEL for label in issue.labels):
+        return False
+
+    # Skip if no comments at all
+    if issue.comments == 0:
+        return False
+
+    # Fetch comments once for both lookups
+    comments = list(issue.get_comments())
+
+    # Find last team member comment
+    last_team_comment = find_last_team_comment(comments, team_members)
+    if last_team_comment is None:
+        return False
+
+    # Skip if author replied after the last team comment
+    if author_replied_after(comments, author, last_team_comment.created_at):
+        return False
+
+    # Check if enough days have passed
+    days_since = (now - last_team_comment.created_at.astimezone(timezone.utc)).days
+    if days_since < days_threshold:
+        return False
+
+    return True
+
+
+def ping(issue: Issue, dry_run: bool) -> bool:
+    """Post a reminder comment and add the 'requested-info' label. Returns True on success."""
+    author = issue.user.login
+    kind = "PR" if issue.pull_request else "Issue"
+
+    if dry_run:
+        print(f"  [DRY RUN] Would ping {kind} #{issue.number} (@{author})")
+        return True
+
+    max_retries = 3
+    commented = False
+    labeled = False
+    for attempt in range(1, max_retries + 1):
+        try:
+            if not commented:
+                issue.create_comment(PING_COMMENT.format(author=author))
+                commented = True
+            if not labeled:
+                issue.add_to_labels(PINGED_LABEL)
+                labeled = True
+            print(f"  Pinged {kind} #{issue.number} (@{author})")
+            return True
+        except Exception as exc:
+            if attempt < max_retries:
+                wait = 2 ** attempt  # 2s, 4s
+                print(f"  WARN: Attempt {attempt}/{max_retries} failed for {kind} #{issue.number}: {exc}. Retrying in {wait}s...")
+                time.sleep(wait)
+            else:
+                print(f"  ERROR: Failed to ping {kind} #{issue.number} after {max_retries} attempts: {exc}")
+                return False
+
+
+def main() -> None:
+    token = os.environ.get("GITHUB_TOKEN")
+    if not token:
+        print("ERROR: GITHUB_TOKEN environment variable is required")
+        sys.exit(1)
+
+    repository = os.environ.get("GITHUB_REPOSITORY")
+    if not repository:
+        print("ERROR: GITHUB_REPOSITORY environment variable is required")
+        sys.exit(1)
+
+    team_slug = os.environ.get("TEAM_SLUG")
+    if not team_slug:
+        print("ERROR: TEAM_SLUG environment variable is required")
+        sys.exit(1)
+
+    days_threshold_raw = os.environ.get("DAYS_THRESHOLD", "4")
+    try:
+        days_threshold = int(days_threshold_raw)
+    except ValueError:
+        print(f"ERROR: DAYS_THRESHOLD must be a numeric value, got '{days_threshold_raw}'")
+        sys.exit(1)
+    dry_run = os.environ.get("DRY_RUN", "false").lower() == "true"
+
+    org = repository.split("/")[0]
+
+    if dry_run:
+        print("Running in DRY RUN mode — no comments or labels will be applied.\n")
+
+    g = Github(auth=Auth.Token(token))
+    repo = g.get_repo(repository)
+
+    print(f"Fetching team members for {org}/{team_slug}...")
+    team_members = get_team_members(g, org, team_slug)
+    print(f"Found {len(team_members)} team members.\n")
+
+    now = datetime.now(timezone.utc)
+    pinged = []
+    failed = []
+    scanned = 0
+
+    print(f"Scanning open issues and PRs labeled '{TRIGGER_LABEL}' (threshold: {days_threshold} days)...\n")
+
+    for issue in repo.get_issues(state="open", labels=[TRIGGER_LABEL]):
+        scanned += 1
+
+        if should_ping(issue, team_members, days_threshold, now):
+            if ping(issue, dry_run):
+                pinged.append(issue.number)
+            else:
+                failed.append(issue.number)
+
+    print(f"\nDone. Scanned {scanned} items, pinged {len(pinged)}, failed {len(failed)}.")
+    if pinged:
+        print(f"Pinged: {', '.join(f'#{n}' for n in pinged)}")
+    if failed:
+        print(f"Failed: {', '.join(f'#{n}' for n in failed)}")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

.github/tests/test_stale_issue_pr_ping.py

@@ -0,0 +1,297 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+"""Tests for stale_issue_pr_ping.py."""
+
+from __future__ import annotations
+
+import os
+import sys
+from datetime import datetime, timezone, timedelta
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+# Ensure the script directory is importable
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "scripts"))
+
+from stale_issue_pr_ping import (
+    PINGED_LABEL,
+    PING_COMMENT,
+    TRIGGER_LABEL,
+    author_replied_after,
+    find_last_team_comment,
+    get_team_members,
+    main,
+    ping,
+    should_ping,
+)
+
+TEAM = {"alice", "bob"}
+NOW = datetime(2026, 3, 15, 12, 0, 0, tzinfo=timezone.utc)
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+def _make_comment(login: str | None, created_at: datetime) -> MagicMock:
+    """Create a mock IssueComment."""
+    c = MagicMock()
+    if login is None:
+        c.user = None
+    else:
+        c.user = MagicMock()
+        c.user.login = login
+    c.created_at = created_at
+    return c
+
+
+def _make_label(name: str) -> MagicMock:
+    lbl = MagicMock()
+    lbl.name = name
+    return lbl
+
+
+def _make_issue(
+    author: str = "external",
+    labels: list[str] | None = None,
+    comment_count: int = 1,
+    comments: list[MagicMock] | None = None,
+    pull_request: bool = False,
+    number: int = 42,
+) -> MagicMock:
+    issue = MagicMock()
+    issue.user = MagicMock()
+    issue.user.login = author
+    issue.number = number
+    # Default to having the trigger label, since the API query pre-filters.
+    if labels is None:
+        labels = [TRIGGER_LABEL]
+    issue.labels = [_make_label(n) for n in labels]
+    issue.comments = comment_count
+    issue.pull_request = MagicMock() if pull_request else None
+    if comments is not None:
+        issue.get_comments.return_value = comments
+    return issue
+
+
+# ---------------------------------------------------------------------------
+# find_last_team_comment
+# ---------------------------------------------------------------------------
+
+class TestFindLastTeamComment:
+    def test_returns_last_team_comment(self):
+        c1 = _make_comment("alice", datetime(2026, 3, 1, tzinfo=timezone.utc))
+        c2 = _make_comment("external", datetime(2026, 3, 2, tzinfo=timezone.utc))
+        c3 = _make_comment("bob", datetime(2026, 3, 3, tzinfo=timezone.utc))
+        assert find_last_team_comment([c1, c2, c3], TEAM) is c3
+
+    def test_returns_none_when_no_team_comments(self):
+        c1 = _make_comment("external", datetime(2026, 3, 1, tzinfo=timezone.utc))
+        assert find_last_team_comment([c1], TEAM) is None
+
+    def test_returns_none_for_empty_list(self):
+        assert find_last_team_comment([], TEAM) is None
+
+    def test_skips_deleted_user(self):
+        c1 = _make_comment(None, datetime(2026, 3, 1, tzinfo=timezone.utc))
+        c2 = _make_comment("alice", datetime(2026, 3, 2, tzinfo=timezone.utc))
+        assert find_last_team_comment([c1, c2], TEAM) is c2
+
+    def test_only_deleted_users(self):
+        c1 = _make_comment(None, datetime(2026, 3, 1, tzinfo=timezone.utc))
+        assert find_last_team_comment([c1], TEAM) is None
+
+
+# ---------------------------------------------------------------------------
+# author_replied_after
+# ---------------------------------------------------------------------------
+
+class TestAuthorRepliedAfter:
+    def test_author_replied(self):
+        after = datetime(2026, 3, 1, tzinfo=timezone.utc)
+        c1 = _make_comment("external", datetime(2026, 3, 2, tzinfo=timezone.utc))
+        assert author_replied_after([c1], "external", after) is True
+
+    def test_author_not_replied(self):
+        after = datetime(2026, 3, 5, tzinfo=timezone.utc)
+        c1 = _make_comment("external", datetime(2026, 3, 2, tzinfo=timezone.utc))
+        assert author_replied_after([c1], "external", after) is False
+
+    def test_different_user_replied(self):
+        after = datetime(2026, 3, 1, tzinfo=timezone.utc)
+        c1 = _make_comment("someone_else", datetime(2026, 3, 2, tzinfo=timezone.utc))
+        assert author_replied_after([c1], "external", after) is False
+
+    def test_deleted_user_comment(self):
+        after = datetime(2026, 3, 1, tzinfo=timezone.utc)
+        c1 = _make_comment(None, datetime(2026, 3, 2, tzinfo=timezone.utc))
+        assert author_replied_after([c1], "external", after) is False
+
+
+# ---------------------------------------------------------------------------
+# should_ping
+# ---------------------------------------------------------------------------
+
+class TestShouldPing:
+    def test_should_ping_stale_issue(self):
+        team_comment = _make_comment("alice", NOW - timedelta(days=5))
+        issue = _make_issue(comments=[team_comment], comment_count=1)
+        assert should_ping(issue, TEAM, 4, NOW) is True
+
+    def test_skip_team_member_author(self):
+        issue = _make_issue(author="alice", labels=[TRIGGER_LABEL], comment_count=1)
+        assert should_ping(issue, TEAM, 4, NOW) is False
+
+    def test_skip_already_pinged(self):
+        issue = _make_issue(labels=[TRIGGER_LABEL, PINGED_LABEL], comment_count=1)
+        assert should_ping(issue, TEAM, 4, NOW) is False
+
+    def test_skip_no_comments(self):
+        issue = _make_issue(comment_count=0)
+        assert should_ping(issue, TEAM, 4, NOW) is False
+
+    def test_skip_no_team_comment(self):
+        c = _make_comment("external", NOW - timedelta(days=5))
+        issue = _make_issue(comments=[c], comment_count=1)
+        assert should_ping(issue, TEAM, 4, NOW) is False
+
+    def test_skip_author_replied(self):
+        team_c = _make_comment("alice", NOW - timedelta(days=5))
+        author_c = _make_comment("external", NOW - timedelta(days=3))
+        issue = _make_issue(comments=[team_c, author_c], comment_count=2)
+        assert should_ping(issue, TEAM, 4, NOW) is False
+
+    def test_skip_not_enough_days(self):
+        team_comment = _make_comment("alice", NOW - timedelta(days=2))
+        issue = _make_issue(comments=[team_comment], comment_count=1)
+        assert should_ping(issue, TEAM, 4, NOW) is False
+
+    def test_aware_datetime_handled(self):
+        """Timezone-aware datetimes should not be mangled by astimezone."""
+        aware_dt = (NOW - timedelta(days=5)).replace(tzinfo=timezone.utc)
+        team_comment = _make_comment("alice", aware_dt)
+        issue = _make_issue(comments=[team_comment], comment_count=1)
+        assert should_ping(issue, TEAM, 4, NOW) is True
+
+    def test_naive_datetime_handled(self):
+        """Naive datetimes (pre-PyGithub 2.x) should be handled by astimezone."""
+        naive_dt = (NOW - timedelta(days=5)).replace(tzinfo=None)
+        team_comment = _make_comment("alice", naive_dt)
+        issue = _make_issue(comments=[team_comment], comment_count=1)
+        # astimezone on naive datetime treats it as local time; just verify no crash
+        should_ping(issue, TEAM, 4, NOW)
+
+
+# ---------------------------------------------------------------------------
+# ping
+# ---------------------------------------------------------------------------
+
+class TestPing:
+    def test_dry_run(self, capsys):
+        issue = _make_issue()
+        assert ping(issue, dry_run=True) is True
+        issue.create_comment.assert_not_called()
+        assert "DRY RUN" in capsys.readouterr().out
+
+    def test_success(self, capsys):
+        issue = _make_issue()
+        assert ping(issue, dry_run=False) is True
+        issue.create_comment.assert_called_once()
+        issue.add_to_labels.assert_called_once_with(PINGED_LABEL)
+
+    @patch("stale_issue_pr_ping.time.sleep")
+    def test_retry_on_failure(self, mock_sleep):
+        issue = _make_issue()
+        issue.create_comment.side_effect = [Exception("net error"), None]
+        assert ping(issue, dry_run=False) is True
+        assert issue.create_comment.call_count == 2
+        mock_sleep.assert_called_once()
+
+    @patch("stale_issue_pr_ping.time.sleep")
+    def test_idempotent_retry_skips_comment_on_label_failure(self, mock_sleep):
+        """If create_comment succeeds but add_to_labels fails, retry should not re-comment."""
+        issue = _make_issue()
+        issue.add_to_labels.side_effect = [Exception("label error"), None]
+        assert ping(issue, dry_run=False) is True
+        # Comment should only be created once even though there were 2 attempts
+        assert issue.create_comment.call_count == 1
+        assert issue.add_to_labels.call_count == 2
+
+    @patch("stale_issue_pr_ping.time.sleep")
+    def test_all_retries_fail(self, mock_sleep):
+        issue = _make_issue()
+        issue.create_comment.side_effect = Exception("permanent error")
+        assert ping(issue, dry_run=False) is False
+        assert issue.create_comment.call_count == 3
+
+
+# ---------------------------------------------------------------------------
+# get_team_members
+# ---------------------------------------------------------------------------
+
+class TestGetTeamMembers:
+    def test_success(self):
+        g = MagicMock()
+        member = MagicMock()
+        member.login = "alice"
+        g.get_organization.return_value.get_team_by_slug.return_value.get_members.return_value = [member]
+        assert get_team_members(g, "org", "my-team") == {"alice"}
+
+    def test_403_error_message(self, capsys):
+        from github import GithubException
+
+        g = MagicMock()
+        g.get_organization.return_value.get_team_by_slug.side_effect = GithubException(
+            403, {"message": "Forbidden"}, None
+        )
+        with pytest.raises(SystemExit):
+            get_team_members(g, "org", "my-team")
+        out = capsys.readouterr().out
+        assert "read:org" in out
+        assert "403" in out
+
+    def test_404_error_message(self, capsys):
+        from github import GithubException
+
+        g = MagicMock()
+        g.get_organization.return_value.get_team_by_slug.side_effect = GithubException(
+            404, {"message": "Not Found"}, None
+        )
+        with pytest.raises(SystemExit):
+            get_team_members(g, "org", "bad-slug")
+        out = capsys.readouterr().out
+        assert "read:org" in out
+        assert "bad-slug" in out
+
+    def test_generic_error(self, capsys):
+        g = MagicMock()
+        g.get_organization.side_effect = RuntimeError("boom")
+        with pytest.raises(SystemExit):
+            get_team_members(g, "org", "team")
+
+
+# ---------------------------------------------------------------------------
+# main – env var validation
+# ---------------------------------------------------------------------------
+
+class TestMain:
+    @patch.dict(os.environ, {
+        "GITHUB_TOKEN": "tok",
+        "GITHUB_REPOSITORY": "org/repo",
+        "TEAM_SLUG": "my-team",
+        "DAYS_THRESHOLD": "abc",
+    }, clear=True)
+    def test_invalid_days_threshold(self, capsys):
+        with pytest.raises(SystemExit):
+            main()
+        assert "numeric" in capsys.readouterr().out
+
+    @patch.dict(os.environ, {
+        "GITHUB_TOKEN": "tok",
+        "GITHUB_REPOSITORY": "org/repo",
+    }, clear=True)
+    def test_missing_team_slug(self, capsys):
+        with pytest.raises(SystemExit):
+            main()
+        assert "TEAM_SLUG" in capsys.readouterr().out

.github/workflows/dotnet-build-and-test.yml

@@ -59,20 +59,20 @@ jobs:
         if: steps.filter.outputs.dotnet != 'true'
         run: echo "NOT dotnet file"
 
-  dotnet-build-and-test:
+  # Build the full solution (including samples) on all TFMs. No tests.
+  dotnet-build:
     needs: paths-filter
     if: needs.paths-filter.outputs.dotnetChanges == 'true'
     strategy:
       fail-fast: false
       matrix:
         include:
-          - { targetFramework: "net10.0", os: "ubuntu-latest", configuration: Release, integration-tests: true, environment: "integration" }
+          - { targetFramework: "net10.0", os: "ubuntu-latest", configuration: Release }
           - { targetFramework: "net9.0", os: "windows-latest", configuration: Debug }
           - { targetFramework: "net8.0", os: "ubuntu-latest", configuration: Release }
-          - { targetFramework: "net472", os: "windows-latest", configuration: Release, integration-tests: true, environment: "integration" }
+          - { targetFramework: "net472", os: "windows-latest", configuration: Release }
 
     runs-on: ${{ matrix.os }}
-    environment: ${{ matrix.environment }}
     steps:
       - uses: actions/checkout@v6
         with:
@@ -84,18 +84,8 @@ jobs:
               python
               workflow-samples
 
-      # Start Cosmos DB Emulator for all integration tests and only for unit tests when CosmosDB changes happened)
-      - name: Start Azure Cosmos DB Emulator
-        if: ${{ runner.os == 'Windows' && (needs.paths-filter.outputs.cosmosDbChanges == 'true' || (github.event_name != 'pull_request' && matrix.integration-tests)) }}
-        shell: pwsh
-        run: |
-          Write-Host "Launching Azure Cosmos DB Emulator"
-          Import-Module "$env:ProgramFiles\Azure Cosmos DB Emulator\PSModules\Microsoft.Azure.CosmosDB.Emulator"
-          Start-CosmosDbEmulator -NoUI -Key "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
-          echo "COSMOSDB_EMULATOR_AVAILABLE=true" >> $env:GITHUB_ENV
-
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v5.1.0
+        uses: actions/setup-dotnet@v5.2.0
         with:
           global-json-file: ${{ github.workspace }}/dotnet/global.json
       - name: Build dotnet solutions
@@ -140,25 +130,98 @@ jobs:
           popd
           rm -rf "$TEMP_DIR"
 
-      - name: Run Unit Tests
-        shell: bash
-        run: |
-          export UT_PROJECTS=$(find ./dotnet -type f -name "*.UnitTests.csproj" | tr '\n' ' ')
-          for project in $UT_PROJECTS; do
-            # Query the project's target frameworks using MSBuild with the current configuration
-            target_frameworks=$(dotnet msbuild $project -getProperty:TargetFrameworks -p:Configuration=${{ matrix.configuration }} -nologo 2>/dev/null | tr -d '\r')
+  # Build src+tests only (no samples) for a single TFM and run tests.
+  dotnet-test:
+    needs: paths-filter
+    if: needs.paths-filter.outputs.dotnetChanges == 'true'
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { targetFramework: "net10.0", os: "ubuntu-latest", configuration: Release, integration-tests: true, environment: "integration" }
+          - { targetFramework: "net472", os: "windows-latest", configuration: Release, integration-tests: true, environment: "integration" }
 
-            # Check if the project supports the target framework
-            if [[ "$target_frameworks" == *"${{ matrix.targetFramework }}"* ]]; then
-              if [[ "${{ matrix.targetFramework }}" == "${{ env.COVERAGE_FRAMEWORK }}" ]]; then
-                dotnet test -f ${{ matrix.targetFramework }} -c ${{ matrix.configuration }} $project --no-build -v Normal --logger trx --collect:"XPlat Code Coverage" --results-directory:"TestResults/Coverage/" -- DataCollectionRunSettings.DataCollectors.DataCollector.Configuration.ExcludeByAttribute=GeneratedCodeAttribute,CompilerGeneratedAttribute,ExcludeFromCodeCoverageAttribute
-              else
-                dotnet test -f ${{ matrix.targetFramework }} -c ${{ matrix.configuration }} $project --no-build -v Normal --logger trx
-              fi
-            else
-              echo "Skipping $project - does not support target framework ${{ matrix.targetFramework }} (supports: $target_frameworks)"
-            fi
-          done
+    runs-on: ${{ matrix.os }}
+    environment: ${{ matrix.environment }}
+    steps:
+      - uses: actions/checkout@v6
+        with:
+            persist-credentials: false
+            sparse-checkout: |
+              .
+              .github
+              dotnet
+              python
+              workflow-samples
+
+      # Start Cosmos DB Emulator for all integration tests and only for unit tests when CosmosDB changes happened)
+      - name: Start Azure Cosmos DB Emulator
+        if: ${{ runner.os == 'Windows' && (needs.paths-filter.outputs.cosmosDbChanges == 'true' || (github.event_name != 'pull_request' && matrix.integration-tests)) }}
+        shell: pwsh
+        run: |
+          Write-Host "Launching Azure Cosmos DB Emulator"
+          Import-Module "$env:ProgramFiles\Azure Cosmos DB Emulator\PSModules\Microsoft.Azure.CosmosDB.Emulator"
+          Start-CosmosDbEmulator -NoUI -Key "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
+          echo "COSMOSDB_EMULATOR_AVAILABLE=true" >> $env:GITHUB_ENV
+
+      - name: Setup dotnet
+        uses: actions/setup-dotnet@v5.2.0
+        with:
+          global-json-file: ${{ github.workspace }}/dotnet/global.json
+
+      - name: Generate test solution (no samples)
+        shell: pwsh
+        run: |
+          ./dotnet/eng/scripts/New-FilteredSolution.ps1 `
+            -Solution dotnet/agent-framework-dotnet.slnx `
+            -TargetFramework ${{ matrix.targetFramework }} `
+            -Configuration ${{ matrix.configuration }} `
+            -ExcludeSamples `
+            -OutputPath dotnet/filtered.slnx `
+            -Verbose
+
+      - name: Build src and tests
+        shell: bash
+        run: dotnet build dotnet/filtered.slnx -c ${{ matrix.configuration }} -f ${{ matrix.targetFramework }} --warnaserror
+
+      - name: Generate test-type filtered solutions
+        shell: pwsh
+        run: |
+          $commonArgs = @{
+            Solution       = "dotnet/filtered.slnx"
+            TargetFramework = "${{ matrix.targetFramework }}"
+            Configuration   = "${{ matrix.configuration }}"
+            Verbose         = $true
+          }
+          ./dotnet/eng/scripts/New-FilteredSolution.ps1 @commonArgs `
+            -TestProjectNameFilter "*UnitTests*" `
+            -OutputPath dotnet/filtered-unit.slnx
+          ./dotnet/eng/scripts/New-FilteredSolution.ps1 @commonArgs `
+            -TestProjectNameFilter "*IntegrationTests*" `
+            -OutputPath dotnet/filtered-integration.slnx
+
+      - name: Run Unit Tests
+        shell: pwsh
+        working-directory: dotnet
+        run: |
+          $coverageSettings = Join-Path $PWD "tests/coverage.runsettings"
+          $coverageArgs = @()
+          if ("${{ matrix.targetFramework }}" -eq "${{ env.COVERAGE_FRAMEWORK }}") {
+            $coverageArgs = @(
+              "--coverage",
+              "--coverage-output-format", "cobertura",
+              "--coverage-settings", $coverageSettings,
+              "--results-directory", "../TestResults/Coverage/"
+            )
+          }
+
+          dotnet test --solution ./filtered-unit.slnx `
+            -f ${{ matrix.targetFramework }} `
+            -c ${{ matrix.configuration }} `
+            --no-build -v Normal `
+            --report-xunit-trx `
+            --ignore-exit-code 8 `
+            @coverageArgs
         env:
           # Cosmos DB Emulator connection settings
           COSMOSDB_ENDPOINT: https://localhost:8081
@@ -185,21 +248,19 @@ jobs:
         id: azure-functions-setup
 
       - name: Run Integration Tests
-        shell: bash
+        shell: pwsh
+        working-directory: dotnet
         if: github.event_name != 'pull_request' && matrix.integration-tests
         run: |
-          export INTEGRATION_TEST_PROJECTS=$(find ./dotnet -type f -name "*IntegrationTests.csproj" | tr '\n' ' ')
-          for project in $INTEGRATION_TEST_PROJECTS; do
-            # Query the project's target frameworks using MSBuild with the current configuration
-            target_frameworks=$(dotnet msbuild $project -getProperty:TargetFrameworks -p:Configuration=${{ matrix.configuration }} -nologo 2>/dev/null | tr -d '\r')
-
-            # Check if the project supports the target framework
-            if [[ "$target_frameworks" == *"${{ matrix.targetFramework }}"* ]]; then
-              dotnet test -f ${{ matrix.targetFramework }} -c ${{ matrix.configuration }} $project --no-build -v Normal --logger trx --filter "Category!=IntegrationDisabled"
-            else
-              echo "Skipping $project - does not support target framework ${{ matrix.targetFramework }} (supports: $target_frameworks)"
-            fi
-          done
+          dotnet test --solution ./filtered-integration.slnx `
+            -f ${{ matrix.targetFramework }} `
+            -c ${{ matrix.configuration }} `
+            --no-build -v Normal `
+            --report-xunit-trx `
+            --ignore-exit-code 8 `
+            --filter-not-trait "Category=IntegrationDisabled" `
+            --parallel-algorithm aggressive `
+            --max-threads 2.0x
         env:
           # Cosmos DB Emulator connection settings
           COSMOSDB_ENDPOINT: https://localhost:8081
@@ -220,15 +281,15 @@ jobs:
       # Generate test reports and check coverage
       - name: Generate test reports
         if: matrix.targetFramework == env.COVERAGE_FRAMEWORK
-        uses: danielpalme/ReportGenerator-GitHub-Action@5.5.1
+        uses: danielpalme/ReportGenerator-GitHub-Action@5.5.3
         with:
-          reports: "./TestResults/Coverage/**/coverage.cobertura.xml"
+          reports: "./TestResults/Coverage/**/*.cobertura.xml"
           targetdir: "./TestResults/Reports"
           reporttypes: "HtmlInline;JsonSummary"
 
       - name: Upload coverage report artifact
         if: matrix.targetFramework == env.COVERAGE_FRAMEWORK
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: CoverageReport-${{ matrix.os }}-${{ matrix.targetFramework }}-${{ matrix.configuration }} # Artifact name
           path: ./TestResults/Reports # Directory containing files to upload
@@ -236,13 +297,13 @@ jobs:
       - name: Check coverage
         if: matrix.targetFramework == env.COVERAGE_FRAMEWORK
         shell: pwsh
-        run: .github/workflows/dotnet-check-coverage.ps1 -JsonReportPath "TestResults/Reports/Summary.json" -CoverageThreshold $env:COVERAGE_THRESHOLD
+        run: ./dotnet/eng/scripts/dotnet-check-coverage.ps1 -JsonReportPath "TestResults/Reports/Summary.json" -CoverageThreshold $env:COVERAGE_THRESHOLD
 
   # This final job is required to satisfy the merge queue. It must only run (or succeed) if no tests failed
   dotnet-build-and-test-check:
     if: always()
     runs-on: ubuntu-latest
-    needs: [dotnet-build-and-test]
+    needs: [dotnet-build, dotnet-test]
     steps:
       - name: Get Date
         shell: bash

.github/workflows/dotnet-format.yml

@@ -86,11 +86,10 @@ jobs:
         run: docker pull mcr.microsoft.com/dotnet/sdk:${{ matrix.dotnet }}
 
       # This step will run dotnet format on each of the unique csproj files and fail if any changes are made
-      # exclude-diagnostics should be removed after fixes for IL2026 and IL3050 are out: https://github.com/dotnet/sdk/issues/51136
       - name: Run dotnet format
         if: steps.find-csproj.outputs.csproj_files != ''
         run: |
           for csproj in ${{ steps.find-csproj.outputs.csproj_files }}; do
             echo "Running dotnet format on $csproj"
-            docker run --rm -v $(pwd):/app -w /app mcr.microsoft.com/dotnet/sdk:${{ matrix.dotnet }} /bin/sh -c "dotnet format $csproj --verify-no-changes --verbosity diagnostic --exclude-diagnostics IL2026 IL3050"
+            docker run --rm -v $(pwd):/app -w /app mcr.microsoft.com/dotnet/sdk:${{ matrix.dotnet }} /bin/sh -c "dotnet format $csproj --verify-no-changes --verbosity diagnostic"
           done

.github/workflows/dotnet-integration-tests.yml

@@ -50,7 +50,7 @@ jobs:
           echo "COSMOS_EMULATOR_AVAILABLE=true" >> $env:GITHUB_ENV
 
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v5.1.0
+        uses: actions/setup-dotnet@v5.2.0
         with:
           global-json-file: ${{ github.workspace }}/dotnet/global.json
 

.github/workflows/python-code-quality.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     runs-on: ubuntu-latest
     continue-on-error: true
     defaults:
@@ -55,7 +55,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     runs-on: ubuntu-latest
     continue-on-error: true
     defaults:
@@ -75,7 +75,7 @@ jobs:
           os: ${{ runner.os }}
         env:
           UV_CACHE_DIR: /tmp/.uv-cache
-      - name: Run fmt, lint, pyright in parallel across packages
+      - name: Run syntax and pyright across packages
         run: uv run poe check-packages
 
   samples-markdown:
@@ -84,7 +84,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     runs-on: ubuntu-latest
     continue-on-error: true
     defaults:
@@ -104,10 +104,8 @@ jobs:
           os: ${{ runner.os }}
         env:
           UV_CACHE_DIR: /tmp/.uv-cache
-      - name: Run samples lint
-        run: uv run poe samples-lint
-      - name: Run samples syntax check
-        run: uv run poe samples-syntax
+      - name: Run samples checks
+        run: uv run poe check -S
       - name: Run markdown code lint
         run: uv run poe markdown-code-lint
 
@@ -117,7 +115,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     runs-on: ubuntu-latest
     continue-on-error: true
     defaults:
@@ -140,4 +138,4 @@ jobs:
       - name: Run Mypy
         env:
           GITHUB_BASE_REF: ${{ github.event.pull_request.base.ref || github.base_ref || 'main' }}
-        run: uv run poe ci-mypy
+        run: uv run python scripts/workspace_poe_tasks.py ci-mypy

.github/workflows/python-dependency-range-validation.yml

@@ -0,0 +1,216 @@
+# Probe the highest allowed dependency versions, then open issues/PRs from the passing updates.
+name: Python - Dependency Range Validation
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  issues: write
+  pull-requests: write
+
+env:
+  UV_CACHE_DIR: /tmp/.uv-cache
+
+jobs:
+  dependency-range-validation:
+    name: Dependency Range Validation
+    runs-on: ubuntu-latest
+    env:
+      # For now only run 3.13, if we do encounter situations where there are mismatches between packages and python versions (other then 3.10 and 3.14 which are known to not be able to install everything)
+      # then we will have to reevaluate.
+      UV_PYTHON: "3.13"
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Set up python and install the project
+        uses: ./.github/actions/python-setup
+        with:
+          python-version: ${{ env.UV_PYTHON }}
+          os: ${{ runner.os }}
+        env:
+          UV_CACHE_DIR: /tmp/.uv-cache
+
+      - name: Run dependency range validation
+        id: validate_ranges
+        # Keep workflow running so we can still publish diagnostics from this run.
+        continue-on-error: true
+        run: uv run poe validate-dependency-bounds-project --mode upper --package "*"
+        working-directory: ./python
+
+      - name: Upload dependency range report
+        # Always publish the report so failures are inspectable even when validation fails.
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: dependency-range-results
+          path: python/scripts/dependencies/dependency-range-results.json
+          if-no-files-found: warn
+
+      - name: Create issues for failed dependency candidates
+        # Always process the report so failed candidates create actionable tracking issues.
+        if: always()
+        uses: actions/github-script@v8
+        with:
+          script: |
+            const fs = require("fs")
+            const reportPath = "python/scripts/dependencies/dependency-range-results.json"
+
+            if (!fs.existsSync(reportPath)) {
+              core.warning(`No dependency range report found at ${reportPath}`)
+              return
+            }
+
+            const report = JSON.parse(fs.readFileSync(reportPath, "utf8"))
+            const dependencyFailures = []
+
+            for (const packageResult of report.packages ?? []) {
+              for (const dependency of packageResult.dependencies ?? []) {
+                const candidateVersions = new Set(dependency.candidate_versions ?? [])
+                const failedAttempts = (dependency.attempts ?? []).filter(
+                  (attempt) => attempt.status === "failed" && candidateVersions.has(attempt.trial_upper)
+                )
+                if (!failedAttempts.length) {
+                  continue
+                }
+
+                const failuresByVersion = new Map()
+                for (const attempt of failedAttempts) {
+                  const version = attempt.trial_upper || "unknown"
+                  if (!failuresByVersion.has(version)) {
+                    failuresByVersion.set(version, attempt.error || "No error output captured.")
+                  }
+                }
+
+                dependencyFailures.push({
+                  packageName: packageResult.package_name,
+                  projectPath: packageResult.project_path,
+                  dependencyName: dependency.name,
+                  originalRequirements: dependency.original_requirements ?? [],
+                  finalRequirements: dependency.final_requirements ?? [],
+                  failedVersions: [...failuresByVersion.entries()].map(([version, error]) => ({ version, error })),
+                })
+              }
+            }
+
+            if (!dependencyFailures.length) {
+              core.info("No failing dependency candidates found.")
+              return
+            }
+
+            const owner = context.repo.owner
+            const repo = context.repo.repo
+            const openIssues = await github.paginate(github.rest.issues.listForRepo, {
+              owner,
+              repo,
+              state: "open",
+              per_page: 100,
+            })
+            const openIssueTitles = new Set(
+              openIssues.filter((issue) => !issue.pull_request).map((issue) => issue.title)
+            )
+
+            const formatError = (message) => String(message || "No error output captured.").replace(/```/g, "'''")
+
+            for (const failure of dependencyFailures) {
+              const title = `Dependency validation failed: ${failure.dependencyName} (${failure.packageName})`
+              if (openIssueTitles.has(title)) {
+                core.info(`Issue already exists: ${title}`)
+                continue
+              }
+
+              const visibleFailures = failure.failedVersions.slice(0, 5)
+              const omittedCount = failure.failedVersions.length - visibleFailures.length
+              const failureDetails = visibleFailures
+                .map(
+                  (entry) =>
+                    `- \`${entry.version}\`\n\n\`\`\`\n${formatError(entry.error).slice(0, 3500)}\n\`\`\``
+                )
+                .join("\n\n")
+
+              const body = [
+                "Automated dependency range validation found candidate versions that failed checks.",
+                "",
+                `- Package: \`${failure.packageName}\``,
+                `- Project path: \`${failure.projectPath}\``,
+                `- Dependency: \`${failure.dependencyName}\``,
+                `- Original requirements: ${
+                  failure.originalRequirements.length
+                    ? failure.originalRequirements.map((value) => `\`${value}\``).join(", ")
+                    : "_none_"
+                }`,
+                `- Final requirements after run: ${
+                  failure.finalRequirements.length
+                    ? failure.finalRequirements.map((value) => `\`${value}\``).join(", ")
+                    : "_none_"
+                }`,
+                "",
+                "### Failed versions and errors",
+                failureDetails,
+                omittedCount > 0 ? `\n_Additional failed versions omitted: ${omittedCount}_` : "",
+                "",
+                `Workflow run: ${context.serverUrl}/${owner}/${repo}/actions/runs/${context.runId}`,
+              ].join("\n")
+
+              await github.rest.issues.create({
+                owner,
+                repo,
+                title,
+                body,
+              })
+              openIssueTitles.add(title)
+              core.info(`Created issue: ${title}`)
+            }
+
+      - name: Refresh lockfile
+        # Only refresh lockfile after a clean validation to avoid committing known-bad ranges.
+        if: steps.validate_ranges.outcome == 'success'
+        run: uv lock --upgrade
+        working-directory: ./python
+
+      - name: Commit and push dependency updates
+        id: commit_updates
+        if: steps.validate_ranges.outcome == 'success'
+        run: |
+          BRANCH="automation/python-dependency-range-updates"
+
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git checkout -B "${BRANCH}"
+
+          git add python/packages/*/pyproject.toml python/uv.lock
+          if git diff --cached --quiet; then
+            echo "has_changes=false" >> "$GITHUB_OUTPUT"
+            echo "No dependency updates to commit."
+            exit 0
+          fi
+
+          git commit -m "chore: update dependency ranges"
+          git push --force-with-lease --set-upstream origin "${BRANCH}"
+          echo "has_changes=true" >> "$GITHUB_OUTPUT"
+
+      - name: Create or update pull request with GitHub CLI
+        # Only open/update PRs for validated updates to keep automation branches trustworthy.
+        if: steps.validate_ranges.outcome == 'success' && steps.commit_updates.outputs.has_changes == 'true'
+        run: |
+          BRANCH="automation/python-dependency-range-updates"
+          PR_TITLE="Python: chore: update dependency ranges"
+          PR_BODY_FILE="$(mktemp)"
+
+          cat > "${PR_BODY_FILE}" <<'EOF'
+          This PR was generated by the dependency range validation workflow.
+
+          - Ran `uv run poe validate-dependency-bounds-project --mode upper --package "*"`
+          - Updated package dependency bounds
+          - Refreshed `python/uv.lock` with `uv lock --upgrade`
+          EOF
+
+          PR_NUMBER="$(gh pr list --head "${BRANCH}" --base main --state open --json number --jq '.[0].number')"
+          if [ -n "${PR_NUMBER}" ]; then
+            gh pr edit "${PR_NUMBER}" --title "${PR_TITLE}" --body-file "${PR_BODY_FILE}"
+          else
+            gh pr create --base main --head "${BRANCH}" --title "${PR_TITLE}" --body-file "${PR_BODY_FILE}"
+          fi

.github/workflows/python-dev-dependency-upgrade.yml

@@ -0,0 +1,91 @@
+name: Python - Dev Dependency Upgrade
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+env:
+  UV_CACHE_DIR: /tmp/.uv-cache
+
+jobs:
+  upgrade-dev-dependencies:
+    name: Upgrade Dev Dependencies
+    runs-on: ubuntu-latest
+    env:
+      UV_PYTHON: "3.13"
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Set up python and install the project
+        uses: ./.github/actions/python-setup
+        with:
+          python-version: ${{ env.UV_PYTHON }}
+          os: ${{ runner.os }}
+        env:
+          UV_CACHE_DIR: /tmp/.uv-cache
+
+      - name: Upgrade dev dependencies and validate workspace
+        run: uv run poe upgrade-dev-dependencies
+        working-directory: ./python
+
+      - name: Commit and push dev dependency updates
+        id: commit_updates
+        run: |
+          BRANCH="automation/python-dev-dependency-updates"
+
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git checkout -B "${BRANCH}"
+
+          git add python/pyproject.toml python/packages/*/pyproject.toml python/uv.lock
+          if git diff --cached --quiet; then
+            echo "has_changes=false" >> "$GITHUB_OUTPUT"
+            echo "No dev dependency updates to commit."
+            exit 0
+          fi
+
+          git commit -F- <<'EOF'
+          Python: chore: upgrade dev dependencies
+          EOF
+          git push --force-with-lease --set-upstream origin "${BRANCH}"
+          echo "has_changes=true" >> "$GITHUB_OUTPUT"
+
+      - name: Create or update pull request with GitHub CLI
+        if: steps.commit_updates.outputs.has_changes == 'true'
+        run: |
+          BRANCH="automation/python-dev-dependency-updates"
+          PR_TITLE="Python: chore: upgrade dev dependencies"
+          PR_BODY_FILE="$(mktemp)"
+
+          cat > "${PR_BODY_FILE}" <<'EOF'
+          ### Motivation and Context
+
+          This automated update refreshes Python dev dependency pins across the workspace and reruns the repo validation gates before opening a pull request.
+
+          ### Description
+
+          - Ran `uv run poe upgrade-dev-dependencies`
+          - Refreshed dev dependency pins in workspace `pyproject.toml` files
+          - Refreshed `python/uv.lock` with `uv lock --upgrade`
+          - Reinstalled from the frozen lockfile and reran `check`, `typing`, and `test`
+
+          ### Contribution Checklist
+
+          - [x] The code builds clean without any errors or warnings
+          - [x] The PR follows the [Contribution Guidelines](https://github.com/microsoft/agent-framework/blob/main/CONTRIBUTING.md)
+          - [x] All unit tests pass, and I have added new tests where possible
+          - [ ] **Is this a breaking change?** If yes, add "[BREAKING]" prefix to the title of the PR.
+          EOF
+
+          PR_NUMBER="$(gh pr list --head "${BRANCH}" --base main --state open --json number --jq '.[0].number')"
+          if [ -n "${PR_NUMBER}" ]; then
+            gh pr edit "${PR_NUMBER}" --title "${PR_TITLE}" --body-file "${PR_BODY_FILE}"
+          else
+            gh pr create --base main --head "${BRANCH}" --title "${PR_TITLE}" --body-file "${PR_BODY_FILE}"
+          fi

.github/workflows/python-integration-tests.yml

@@ -48,9 +48,8 @@ jobs:
           os: ${{ runner.os }}
       - name: Test with pytest (unit tests only)
         run: >
-          uv run poe all-tests
+          uv run poe test -A
           -m "not integration"
-          -n logical --dist worksteal
           --timeout=120 --session-timeout=900 --timeout_method thread
           --retries 2 --retry-delay 5
 
@@ -170,7 +169,7 @@ jobs:
     environment: integration
     timeout-minutes: 60
     env:
-      UV_PYTHON: "3.10"
+      UV_PYTHON: "3.11"
       OPENAI_CHAT_MODEL_ID: ${{ vars.OPENAI__CHATMODELID }}
       OPENAI_RESPONSES_MODEL_ID: ${{ vars.OPENAI__RESPONSESMODELID }}
       OPENAI_API_KEY: ${{ secrets.OPENAI__APIKEY }}

.github/workflows/python-lab-tests.yml

@@ -67,6 +67,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           os: ${{ runner.os }}
+          exclude-packages: ${{ matrix.python-version == '3.10' && 'agent-framework-github-copilot' || '' }}
         env:
           # Configure a constant location for the uv cache
           UV_CACHE_DIR: /tmp/.uv-cache
@@ -75,6 +76,9 @@ jobs:
       - name: Run lab tests
         run: cd packages/lab && uv run poe test
 
+      - name: Run resource-intensive lab tests
+        run: cd packages/lab && uv run pytest -m "resource_intensive and not integration" --junitxml=test-results-resource-intensive.xml
+
       - name: Run lab lint
         run: cd packages/lab && uv run poe lint
 

.github/workflows/python-merge-tests.yml

@@ -100,9 +100,8 @@ jobs:
           os: ${{ runner.os }}
       - name: Test with pytest (unit tests only)
         run: >
-          uv run poe all-tests
+          uv run poe test -A
           -m "not integration"
-          -n logical --dist worksteal
           --timeout=120 --session-timeout=900 --timeout_method thread
           --retries 2 --retry-delay 5
         working-directory: ./python
@@ -288,7 +287,7 @@ jobs:
     runs-on: ubuntu-latest
     environment: integration
     env:
-      UV_PYTHON: "3.10"
+      UV_PYTHON: "3.11"
       OPENAI_CHAT_MODEL_ID: ${{ vars.OPENAI__CHATMODELID }}
       OPENAI_RESPONSES_MODEL_ID: ${{ vars.OPENAI__RESPONSESMODELID }}
       OPENAI_API_KEY: ${{ secrets.OPENAI__APIKEY }}

.github/workflows/python-sample-validation.yml

@@ -41,16 +41,23 @@ jobs:
           azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
           os: ${{ runner.os }}
 
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME=$AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_ENDPOINT=$AZURE_OPENAI_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_CHAT_DEPLOYMENT_NAME=$AZURE_OPENAI_CHAT_DEPLOYMENT_NAME" >> .env
+
       - name: Run sample validation
         run: |
           cd scripts && uv run python -m sample_validation --subdir 01-get-started --save-report --report-name 01-get-started
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-01-get-started
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
 
   validate-02-agents:
     name: Validate 02-agents
@@ -64,10 +71,13 @@ jobs:
       AZURE_OPENAI_ENDPOINT: ${{ vars.AZUREOPENAI__ENDPOINT }}
       AZURE_OPENAI_CHAT_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__CHATDEPLOYMENTNAME }}
       AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__RESPONSESDEPLOYMENTNAME }}
+      AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__EMBEDDINGDEPLOYMENTNAME }}
       # OpenAI configuration
       OPENAI_API_KEY: ${{ secrets.OPENAI__APIKEY }}
       OPENAI_CHAT_MODEL_ID: ${{ vars.OPENAI__CHATMODELID }}
       OPENAI_RESPONSES_MODEL_ID: ${{ vars.OPENAI__RESPONSESMODELID }}
+      # GitHub MCP
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       # Observability
       ENABLE_INSTRUMENTATION: "true"
     defaults:
@@ -84,16 +94,420 @@ jobs:
           azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
           os: ${{ runner.os }}
 
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_AI_MODEL_DEPLOYMENT_NAME=$AZURE_AI_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_ENDPOINT=$AZURE_OPENAI_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_CHAT_DEPLOYMENT_NAME=$AZURE_OPENAI_CHAT_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME=$AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME=$AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME" >> .env
+          echo "OPENAI_API_KEY=$OPENAI_API_KEY" >> .env
+          echo "OPENAI_CHAT_MODEL_ID=$OPENAI_CHAT_MODEL_ID" >> .env
+          echo "OPENAI_RESPONSES_MODEL_ID=$OPENAI_RESPONSES_MODEL_ID" >> .env
+          echo "GITHUB_PAT=$GITHUB_PAT" >> .env
+
       - name: Run sample validation
         run: |
-          cd scripts && uv run python -m sample_validation --subdir 02-agents --save-report --report-name 02-agents
+          cd scripts && uv run python -m sample_validation --subdir 02-agents --exclude providers --save-report --report-name 02-agents
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-02-agents
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-openai:
+    name: Validate 02-agents/providers/openai
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      OPENAI_API_KEY: ${{ secrets.OPENAI__APIKEY }}
+      OPENAI_CHAT_MODEL_ID: ${{ vars.OPENAI__CHATMODELID }}
+      OPENAI_RESPONSES_MODEL_ID: ${{ vars.OPENAI__RESPONSESMODELID }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Create .env for samples
+        run: |
+          echo "OPENAI_API_KEY=$OPENAI_API_KEY" >> .env
+          echo "OPENAI_CHAT_MODEL_ID=$OPENAI_CHAT_MODEL_ID" >> .env
+          echo "OPENAI_RESPONSES_MODEL_ID=$OPENAI_RESPONSES_MODEL_ID" >> .env
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/openai --save-report --report-name 02-agents-openai
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-openai
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-azure-openai:
+    name: Validate 02-agents/providers/azure_openai
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      AZURE_AI_PROJECT_ENDPOINT: ${{ vars.AZURE_AI_PROJECT_ENDPOINT }}
+      AZURE_OPENAI_ENDPOINT: ${{ vars.AZUREOPENAI__ENDPOINT }}
+      AZURE_OPENAI_CHAT_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__CHATDEPLOYMENTNAME }}
+      AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__RESPONSESDEPLOYMENTNAME }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_ENDPOINT=$AZURE_OPENAI_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_CHAT_DEPLOYMENT_NAME=$AZURE_OPENAI_CHAT_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME=$AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME" >> .env
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/azure_openai --save-report --report-name 02-agents-azure-openai
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-azure-openai
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-azure-ai:
+    name: Validate 02-agents/providers/azure_ai
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      AZURE_AI_PROJECT_ENDPOINT: ${{ vars.AZURE_AI_PROJECT_ENDPOINT }}
+      AZURE_AI_MODEL_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__RESPONSESDEPLOYMENTNAME }}
+      AZURE_AI_CHAT_MODEL_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__CHATDEPLOYMENTNAME }}
+      AZURE_AI_EMBEDDING_MODEL_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__EMBEDDINGDEPLOYMENTNAME }}
+      BING_CONNECTION_ID: ${{ secrets.BING_CONNECTION_ID }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_AI_MODEL_DEPLOYMENT_NAME=$AZURE_AI_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_AI_CHAT_MODEL_DEPLOYMENT_NAME=$AZURE_AI_CHAT_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_AI_EMBEDDING_MODEL_DEPLOYMENT_NAME=$AZURE_AI_EMBEDDING_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "BING_CONNECTION_ID=$BING_CONNECTION_ID" >> .env
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/azure_ai --save-report --report-name 02-agents-azure-ai
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-azure-ai
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-azure-ai-agent:
+    name: Validate 02-agents/providers/azure_ai_agent
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      AZURE_AI_PROJECT_ENDPOINT: ${{ vars.AZURE_AI_PROJECT_ENDPOINT }}
+      AZURE_AI_MODEL_DEPLOYMENT_NAME: ${{ vars.AZUREOPENAI__RESPONSESDEPLOYMENTNAME }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_AI_MODEL_DEPLOYMENT_NAME=$AZURE_AI_MODEL_DEPLOYMENT_NAME" >> .env
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/azure_ai_agent --save-report --report-name 02-agents-azure-ai-agent
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-azure-ai-agent
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-anthropic:
+    name: Validate 02-agents/providers/anthropic
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+      ANTHROPIC_CHAT_MODEL_ID: ${{ vars.ANTHROPIC_CHAT_MODEL_ID }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Create .env for samples
+        run: |
+          echo "ANTHROPIC_API_KEY=$ANTHROPIC_API_KEY" >> .env
+          echo "ANTHROPIC_CHAT_MODEL_ID=$ANTHROPIC_CHAT_MODEL_ID" >> .env
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/anthropic --save-report --report-name 02-agents-anthropic
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-anthropic
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-github-copilot:
+    name: Validate 02-agents/providers/github_copilot
+    runs-on: ubuntu-latest
+    environment: integration
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/github_copilot --save-report --report-name 02-agents-github-copilot
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-github-copilot
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-amazon:
+    name: Validate 02-agents/providers/amazon
+    if: false  # Temporarily disabled - requires AWS credentials
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      BEDROCK_CHAT_MODEL_ID: ${{ vars.BEDROCK__CHATMODELID }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/amazon --save-report --report-name 02-agents-amazon
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-amazon
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-ollama:
+    name: Validate 02-agents/providers/ollama
+    if: false  # Temporarily disabled - requires local Ollama server
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      OLLAMA_MODEL: ${{ vars.OLLAMA__MODEL }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/ollama --save-report --report-name 02-agents-ollama
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-ollama
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-foundry-local:
+    name: Validate 02-agents/providers/foundry_local
+    if: false  # Temporarily disabled - requires local Foundry setup
+    runs-on: ubuntu-latest
+    environment: integration
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/foundry_local --save-report --report-name 02-agents-foundry-local
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-foundry-local
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-copilotstudio:
+    name: Validate 02-agents/providers/copilotstudio
+    if: false  # Temporarily disabled - requires Copilot Studio setup
+    runs-on: ubuntu-latest
+    environment: integration
+    env:
+      COPILOTSTUDIOAGENT__ENVIRONMENTID: ${{ secrets.COPILOTSTUDIOAGENT__ENVIRONMENTID }}
+      COPILOTSTUDIOAGENT__SCHEMANAME: ${{ secrets.COPILOTSTUDIOAGENT__SCHEMANAME }}
+      COPILOTSTUDIOAGENT__TENANTID: ${{ secrets.COPILOTSTUDIOAGENT__TENANTID }}
+      COPILOTSTUDIOAGENT__AGENTAPPID: ${{ secrets.COPILOTSTUDIOAGENT__AGENTAPPID }}
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Create .env for samples
+        run: |
+          echo "COPILOTSTUDIOAGENT__ENVIRONMENTID=$COPILOTSTUDIOAGENT__ENVIRONMENTID" >> .env
+          echo "COPILOTSTUDIOAGENT__SCHEMANAME=$COPILOTSTUDIOAGENT__SCHEMANAME" >> .env
+          echo "COPILOTSTUDIOAGENT__TENANTID=$COPILOTSTUDIOAGENT__TENANTID" >> .env
+          echo "COPILOTSTUDIOAGENT__AGENTAPPID=$COPILOTSTUDIOAGENT__AGENTAPPID" >> .env
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/copilotstudio --save-report --report-name 02-agents-copilotstudio
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-copilotstudio
+          path: python/samples/sample_validation/reports/
+
+  validate-02-agents-custom:
+    name: Validate 02-agents/providers/custom
+    runs-on: ubuntu-latest
+    environment: integration
+    defaults:
+      run:
+        working-directory: python
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup environment
+        uses: ./.github/actions/sample-validation-setup
+        with:
+          azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          azure-tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+          os: ${{ runner.os }}
+
+      - name: Run sample validation
+        run: |
+          cd scripts && uv run python -m sample_validation --subdir 02-agents/providers/custom --save-report --report-name 02-agents-custom
+
+      - name: Upload validation report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-report-02-agents-custom
+          path: python/samples/sample_validation/reports/
 
   validate-03-workflows:
     name: Validate 03-workflows
@@ -121,16 +535,24 @@ jobs:
           azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
           os: ${{ runner.os }}
 
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_AI_MODEL_DEPLOYMENT_NAME=$AZURE_AI_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_ENDPOINT=$AZURE_OPENAI_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_CHAT_DEPLOYMENT_NAME=$AZURE_OPENAI_CHAT_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME=$AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME" >> .env
+
       - name: Run sample validation
         run: |
           cd scripts && uv run python -m sample_validation --subdir 03-workflows --save-report --report-name 03-workflows
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-03-workflows
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
 
   validate-04-hosting:
     name: Validate 04-hosting
@@ -165,11 +587,11 @@ jobs:
           cd scripts && uv run python -m sample_validation --subdir 04-hosting --save-report --report-name 04-hosting
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-04-hosting
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
 
   validate-05-end-to-end:
     name: Validate 05-end-to-end
@@ -209,11 +631,11 @@ jobs:
           cd scripts && uv run python -m sample_validation --subdir 05-end-to-end --save-report --report-name 05-end-to-end
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-05-end-to-end
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
 
   validate-autogen-migration:
     name: Validate autogen-migration
@@ -244,16 +666,26 @@ jobs:
           azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
           os: ${{ runner.os }}
 
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_AI_MODEL_DEPLOYMENT_NAME=$AZURE_AI_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_ENDPOINT=$AZURE_OPENAI_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_CHAT_DEPLOYMENT_NAME=$AZURE_OPENAI_CHAT_DEPLOYMENT_NAME" >> .env
+          echo "OPENAI_API_KEY=$OPENAI_API_KEY" >> .env
+          echo "OPENAI_CHAT_MODEL_ID=$OPENAI_CHAT_MODEL_ID" >> .env
+          echo "OPENAI_RESPONSES_MODEL_ID=$OPENAI_RESPONSES_MODEL_ID" >> .env
+
       - name: Run sample validation
         run: |
           cd scripts && uv run python -m sample_validation --subdir autogen-migration --save-report --report-name autogen-migration
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-autogen-migration
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
 
   validate-semantic-kernel-migration:
     name: Validate semantic-kernel-migration
@@ -290,13 +722,93 @@ jobs:
           azure-subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
           os: ${{ runner.os }}
 
+      - name: Create .env for samples
+        run: |
+          echo "AZURE_AI_PROJECT_ENDPOINT=$AZURE_AI_PROJECT_ENDPOINT" >> .env
+          echo "AZURE_AI_MODEL_DEPLOYMENT_NAME=$AZURE_AI_MODEL_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_ENDPOINT=$AZURE_OPENAI_ENDPOINT" >> .env
+          echo "AZURE_OPENAI_CHAT_DEPLOYMENT_NAME=$AZURE_OPENAI_CHAT_DEPLOYMENT_NAME" >> .env
+          echo "AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME=$AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME" >> .env
+          echo "OPENAI_API_KEY=$OPENAI_API_KEY" >> .env
+          echo "OPENAI_CHAT_MODEL_ID=$OPENAI_CHAT_MODEL_ID" >> .env
+          echo "OPENAI_RESPONSES_MODEL_ID=$OPENAI_RESPONSES_MODEL_ID" >> .env
+          echo "COPILOTSTUDIOAGENT__ENVIRONMENTID=$COPILOTSTUDIOAGENT__ENVIRONMENTID" >> .env
+          echo "COPILOTSTUDIOAGENT__SCHEMANAME=$COPILOTSTUDIOAGENT__SCHEMANAME" >> .env
+          echo "COPILOTSTUDIOAGENT__TENANTID=$COPILOTSTUDIOAGENT__TENANTID" >> .env
+          echo "COPILOTSTUDIOAGENT__AGENTAPPID=$COPILOTSTUDIOAGENT__AGENTAPPID" >> .env
+
       - name: Run sample validation
         run: |
           cd scripts && uv run python -m sample_validation --subdir semantic-kernel-migration --save-report --report-name semantic-kernel-migration
 
       - name: Upload validation report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: validation-report-semantic-kernel-migration
-          path: python/scripts/sample_validation/reports/
+          path: python/samples/sample_validation/reports/
+
+  aggregate-results:
+    name: Aggregate Results
+    runs-on: ubuntu-latest
+    if: always()
+    needs:
+      - validate-01-get-started
+      - validate-02-agents
+      - validate-02-agents-openai
+      - validate-02-agents-azure-openai
+      - validate-02-agents-azure-ai
+      - validate-02-agents-azure-ai-agent
+      - validate-02-agents-anthropic
+      - validate-02-agents-github-copilot
+      - validate-02-agents-amazon
+      - validate-02-agents-ollama
+      - validate-02-agents-foundry-local
+      - validate-02-agents-copilotstudio
+      - validate-02-agents-custom
+      - validate-03-workflows
+      - validate-04-hosting
+      - validate-05-end-to-end
+      - validate-autogen-migration
+      - validate-semantic-kernel-migration
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Download all validation reports
+        uses: actions/download-artifact@v7
+        with:
+          pattern: validation-report-*
+          path: reports/
+          merge-multiple: true
+
+      - name: Restore validation history
+        id: cache-restore
+        uses: actions/cache/restore@v4
+        with:
+          path: validation-history/
+          key: validation-history-${{ github.run_id }}
+          restore-keys: |
+            validation-history-
+
+      - name: Aggregate results and generate trend report
+        run: |
+          python3 python/scripts/sample_validation/aggregate.py \
+            reports/ \
+            validation-history/history.json \
+            trend-report.md
+
+      - name: Write trend report to job summary
+        run: cat trend-report.md >> "$GITHUB_STEP_SUMMARY"
+
+      - name: Save validation history
+        uses: actions/cache/save@v4
+        with:
+          path: validation-history/
+          key: validation-history-${{ github.run_id }}
+
+      - name: Upload trend report
+        uses: actions/upload-artifact@v7
+        if: always()
+        with:
+          name: validation-trend-report
+          path: trend-report.md

.github/workflows/python-test-coverage-report.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Download coverage report
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           github-token: ${{ secrets.GH_ACTIONS_PR_WRITE }}
           run-id: ${{ github.event.workflow_run.id }}
@@ -46,7 +46,7 @@ jobs:
           echo "PR_NUMBER=$PR_NUMBER" >> "$GITHUB_ENV"
       - name: Pytest coverage comment
         id: coverageComment
-        uses: MishaKav/pytest-coverage-comment@v1.2.0
+        uses: MishaKav/pytest-coverage-comment@v1.6.0
         with:
           github-token: ${{ secrets.GH_ACTIONS_PR_WRITE }}
           issue-number: ${{ env.PR_NUMBER }}

.github/workflows/python-test-coverage.yml

@@ -20,7 +20,7 @@ jobs:
       run:
         working-directory: python
     env:
-      UV_PYTHON: "3.10"
+      UV_PYTHON: "3.11"
     steps:
       - uses: actions/checkout@v6
       # Save the PR number to a file since the workflow_run event
@@ -32,17 +32,17 @@ jobs:
         id: python-setup
         uses: ./.github/actions/python-setup
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: ${{ env.UV_PYTHON }}
           os: ${{ runner.os }}
         env:
           # Configure a constant location for the uv cache
           UV_CACHE_DIR: /tmp/.uv-cache
       - name: Run all tests with coverage report
-        run: uv run poe all-tests-cov --cov-report=xml:python-coverage.xml -q --junitxml=pytest.xml
+        run: uv run poe test -A -C --cov-report=xml:python-coverage.xml -q --junitxml=pytest.xml
       - name: Check coverage threshold
         run: python ${{ github.workspace }}/.github/workflows/python-check-coverage.py python-coverage.xml ${{ env.COVERAGE_THRESHOLD }}
       - name: Upload coverage report
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           path: |
             python/python-coverage.xml

.github/workflows/python-tests.yml

@@ -34,12 +34,13 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           os: ${{ runner.os }}
+          exclude-packages: ${{ matrix.python-version == '3.10' && 'agent-framework-github-copilot' || '' }}
         env:
           # Configure a constant location for the uv cache
           UV_CACHE_DIR: /tmp/.uv-cache
       # Unit tests
       - name: Run all tests
-        run: uv run poe all-tests
+        run: uv run poe test -A
         working-directory: ./python
 
       # Surface failing tests

.github/workflows/stale-issue-pr-ping.yml

@@ -0,0 +1,49 @@
+name: Stale issue and PR ping
+
+on:
+  schedule:
+    - cron: '0 0 * * *'  # Midnight UTC daily
+  workflow_dispatch:
+    inputs:
+      days_threshold:
+        description: 'Days of silence before pinging the author'
+        required: false
+        default: '4'
+      dry_run:
+        description: 'Log what would be pinged without taking action'
+        required: false
+        default: 'false'
+        type: choice
+        options:
+          - 'false'
+          - 'true'
+
+concurrency:
+  group: stale-issue-pr-ping
+  cancel-in-progress: true
+
+jobs:
+  ping_stale:
+    name: "Ping stale issues and PRs"
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.13'
+
+      - name: Install dependencies
+        run: pip install PyGithub==2.6.0
+
+      - name: Run stale issue/PR ping
+        run: python .github/scripts/stale_issue_pr_ping.py
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_ACTIONS_PR_WRITE }}
+          TEAM_SLUG: ${{ secrets.DEVELOPER_TEAM }}
+          DAYS_THRESHOLD: ${{ github.event.inputs.days_threshold || '4' }}
+          DRY_RUN: ${{ github.event.inputs.dry_run || 'false' }}

.gitignore

@@ -205,6 +205,9 @@ WARP.md
 **/memory-bank/
 **/projectBrief.md
 **/tmpclaude*
+# Dependency-bound validation reports
+python/scripts/dependency-*-results.json
+python/scripts/dependencies/dependency-*-results.json
 
 # Azurite storage emulator files
 */__azurite_db_blob__.json*

docs/decisions/0001-agent-run-response.md

@@ -4,8 +4,8 @@ status: accepted
 contact: westey-m
 date: 2025-07-10 {YYYY-MM-DD when the decision was last updated}
 deciders: sergeymenshykh, markwallace, rbarreto, dmytrostruk, westey-m, eavanvalkenburg, stephentoub
-consulted: 
-informed: 
+consulted:
+informed:
 ---
 
 # Agent Run Responses Design
@@ -64,7 +64,7 @@ Approaches observed from the compared SDKs:
 | AutoGen | **Approach 1** Separates messages into Agent-Agent (maps to Primary) and Internal (maps to Secondary) and these are returned as separate properties on the agent response object.  See [types of messages](https://microsoft.github.io/autogen/stable/user-guide/agentchat-user-guide/tutorial/messages.html#types-of-messages) and [Response](https://microsoft.github.io/autogen/stable/reference/python/autogen_agentchat.base.html#autogen_agentchat.base.Response) | **Approach 2** Returns a stream of internal events and the last item is a Response object. See [ChatAgent.on_messages_stream](https://microsoft.github.io/autogen/stable/reference/python/autogen_agentchat.base.html#autogen_agentchat.base.ChatAgent.on_messages_stream) |
 | OpenAI Agent SDK | **Approach 1** Separates new_items (Primary+Secondary) from final output (Primary) as separate properties on the [RunResult](https://github.com/openai/openai-agents-python/blob/main/src/agents/result.py#L39) | **Approach 1** Similar to non-streaming, has a way of streaming updates via a method on the response object which includes all data, and then a separate final output property on the response object which is populated only when the run is complete. See [RunResultStreaming](https://github.com/openai/openai-agents-python/blob/main/src/agents/result.py#L136) |
 | Google ADK | **Approach 2** [Emits events](https://google.github.io/adk-docs/runtime/#step-by-step-breakdown) with [FinalResponse](https://github.com/google/adk-java/blob/main/core/src/main/java/com/google/adk/events/Event.java#L232) true (Primary) / false (Secondary) and callers have to filter out those with false to get just the final response message | **Approach 2** Similar to non-streaming except [events](https://google.github.io/adk-docs/runtime/#streaming-vs-non-streaming-output-partialtrue) are emitted with [Partial](https://github.com/google/adk-java/blob/main/core/src/main/java/com/google/adk/events/Event.java#L133) true to indicate that they are streaming messages. A final non partial event is also emitted. |
-| AWS (Strands) | **Approach 3** Returns an [AgentResult](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent_result/) (Primary) with messages and a reason for the run's completion. | **Approach 2** [Streams events](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent/#strands.agent.agent.Agent.stream_async) (Primary+Secondary) including, response text, current_tool_use, even data from "callbacks" (strands plugins) |
+| AWS (Strands) | **Approach 3** Returns an [AgentResult](https://strandsagents.com/docs/api/python/strands.agent.agent_result/) (Primary) with messages and a reason for the run's completion. | **Approach 2** [Streams events](https://strandsagents.com/docs/api/python/strands.agent.agent/) (Primary+Secondary) including, response text, current_tool_use, even data from "callbacks" (strands plugins) |
 | LangGraph | **Approach 2** A mixed list of all [messages](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) | **Approach 2** A mixed list of all [messages](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) |
 | Agno | **Combination of various approaches** Returns a [RunResponse](https://docs.agno.com/reference/agents/run-response) object with text content, messages (essentially chat history including inputs and instructions), reasoning and thinking text properties. Secondary events could potentially be extracted from messages. | **Approach 2** Returns [RunResponseEvent](https://docs.agno.com/reference/agents/run-response#runresponseevent-types-and-attributes) objects including tool call, memory update, etc, information, where the [RunResponseCompletedEvent](https://docs.agno.com/reference/agents/run-response#runresponsecompletedevent) has similar properties to RunResponse|
 | A2A | **Approach 3** Returns a [Task or Message](https://a2aproject.github.io/A2A/latest/specification/#71-messagesend) where the message is the final result (Primary) and task is a reference to a long running process. | **Approach 2** Returns a [stream](https://a2aproject.github.io/A2A/latest/specification/#72-messagestream) that contains task updates (Secondary) and a final message (Primary) |
@@ -496,7 +496,7 @@ We need to decide what AIContent types, each agent response type will be mapped
 |-|-|
 | AutoGen | **Approach 1** Supports [configuring an agent](https://microsoft.github.io/autogen/stable/user-guide/agentchat-user-guide/tutorial/agents.html#structured-output) at agent creation. |
 | Google ADK | **Approach 1** Both [input and output schemas can be specified for LLM Agents](https://google.github.io/adk-docs/agents/llm-agents/#structuring-data-input_schema-output_schema-output_key) at construction time. This option is specific to this agent type and other agent types do not necessarily support |
-| AWS (Strands) | **Approach 2** Supports a special invocation method called [structured_output](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent/#strands.agent.agent.Agent.structured_output) |
+| AWS (Strands) | **Approach 2** Supports a special invocation method called [structured_output](https://strandsagents.com/docs/api/python/strands.agent.agent/) |
 | LangGraph | **Approach 1** Supports [configuring an agent](https://langchain-ai.github.io/langgraph/agents/agents/?h=structured#6-configure-structured-output) at agent construction time, and a [structured response](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) can be retrieved as a special property on the agent response |
 | Agno | **Approach 1** Supports [configuring an agent](https://docs.agno.com/input-output/structured-output/agent) at agent construction time |
 | A2A | **Informal Approach 2** Doesn't formally support schema negotiation, but [hints can be provided via metadata](https://a2a-protocol.org/latest/specification/#97-structured-data-exchange-requesting-and-providing-json) at invocation time |
@@ -508,7 +508,7 @@ We need to decide what AIContent types, each agent response type will be mapped
 |-|-|
 | AutoGen | Supports a [stop reason](https://microsoft.github.io/autogen/stable/reference/python/autogen_agentchat.base.html#autogen_agentchat.base.TaskResult.stop_reason) which is a freeform text string |
 | Google ADK | [No equivalent present](https://github.com/google/adk-python/blob/main/src/google/adk/events/event.py) |
-| AWS (Strands) | Exposes a [stop_reason](https://strandsagents.com/latest/documentation/docs/api-reference/python/types/event_loop/#strands.types.event_loop.StopReason) property on the [AgentResult](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent_result/) class with options that are tied closely to LLM operations. |
+| AWS (Strands) | Exposes a [stop_reason](https://strandsagents.com/docs/api/python/strands.types.event_loop/) property on the [AgentResult](https://strandsagents.com/docs/api/python/strands.agent.agent_result/) class with options that are tied closely to LLM operations. |
 | LangGraph | No equivalent present, output contains only [messages](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) |
 | Agno | [No equivalent present](https://docs.agno.com/reference/agents/run-response) |
 | A2A | No equivalent present, response only contains a [message](https://a2a-protocol.org/latest/specification/#64-message-object) or [task](https://a2a-protocol.org/latest/specification/#61-task-object). |

docs/decisions/0019-python-context-compaction-strategy.md

@@ -1240,3 +1240,10 @@ class AttributionAwareStrategy(CompactionStrategy):
 
 - [ADR-0016: Unifying Context Management with ContextPlugin](0016-python-context-middleware.md) — Parent ADR that established `ContextProvider`, `HistoryProvider`, and `AgentSession` architecture.
 - [Context Compaction Limitations Analysis](https://gist.github.com/victordibia/ec3f3baf97345f7e47da025cf55b999f) — Detailed analysis of why current architecture cannot support in-run compaction, with attempted solutions and their failure modes. Option 4 in this ADR corresponds to "Option A: Middleware Access to Mutable Message Source" from that analysis; Options 1-3 correspond to "Option B: Tool Loop Hook", adapted here to a `BaseChatClient` hook instead of `FunctionInvocationConfiguration`.
+
+### Implementation Rollout Note
+
+Implementation is split into two phases:
+
+1. **Phase 1 (PR 1):** runtime compaction foundation in `agent_framework/_compaction.py`, in-run integration, and extensive core tests, plus in-run compaction samples (`basics`, `advanced`, `custom`).
+2. **Phase 2 (PR 2):** history/storage compaction (`upsert`-based full replacement), provider support, storage tests, and storage-focused sample (`storage`).

docs/decisions/0020-foundry-evals-integration.md

@@ -0,0 +1,815 @@
+---
+status: accepted
+contact: bentho
+date: 2026-02-27
+deciders: bentho, markwallace-microsoft, westey-m
+consulted: Pratyush Mishra, Shivam Shrivastava, Manni Arora (Centrica eval scenario)
+informed: Agent Framework team, Foundry Evals team
+---
+
+# Agent Evaluation Architecture with Azure AI Foundry Integration
+
+## Context and Problem Statement
+
+Azure AI Foundry provides a rich evaluation service for AI agents — built-in evaluators for agent behavior (task adherence, intent resolution), tool usage (tool call accuracy, tool selection), quality (coherence, fluency, relevance), and safety (violence, self-harm, prohibited actions). Results are viewable in the Foundry portal with dashboards and comparison views.
+
+However, using Foundry Evals with an agent-framework agent today requires significant manual effort. Developers must:
+
+1. Transform agent-framework's `Message`/`Content` types into the OpenAI-style agent message schema that Foundry evaluators expect
+2. Map tool definitions from agent-framework's `FunctionTool` format to evaluator-compatible schemas
+3. Manually wire up the correct Foundry data source type (`azure_ai_traces`, `jsonl`, `azure_ai_target_completions`, etc.) depending on their scenario
+4. Handle App Insights trace ID queries, response ID collection, and eval polling
+
+Additionally, evaluation is a concern that extends beyond any single provider. Developers may want to use local evaluators (LLM-as-judge, regex, keyword matching), third-party evaluation libraries, or multiple providers in combination. The architecture must support this without creating a Foundry-specific lock-in at the API level.
+
+### Functional Requirements for Agent Evaluation
+
+- **Single agents and workflows.** Evaluate both individual agent responses and multi-agent workflow results, with per-agent breakdown to pinpoint underperformance.
+- **One-shot and multi-turn conversations.** Capture full conversation trajectories — including tool calls and results — not just final query/response pairs.
+- **Conversation factoring.** Support splitting conversations into query/response in multiple ways (last turn, full trajectory, per-turn) because different factorings measure different things.
+- **Multiple providers, mix and match.** Run Foundry LLM-as-judge evaluators alongside fast local checks and custom evaluators on the same data, without restructuring code.
+- **Third-party extensibility.** Any evaluation library can participate by implementing the `Evaluator` protocol (Python) or `IAgentEvaluator` interface (.NET). No predetermined list of supported libraries — the protocol is intentionally simple (`evaluate(items) → results`) so that wrappers for libraries like DeepEval, RAGAS, or Promptfoo are straightforward to write.
+- **Bring your own evaluator.** Creating a custom evaluator should be as simple as writing a function.
+- **Evaluate without re-running.** Evaluate existing responses from logs or previous runs without invoking the agent again.
+
+## Decision Drivers
+
+- **Zero-friction evaluation**: Developers should go from "I have an agent" to "I have eval results" with minimal code.
+- **Provider-agnostic API**: Core evaluation capabilities must not be tied to any specific provider. Provider configuration should be separate from the evaluation call.
+- **Lowest concept count**: Introduce the fewest possible new types, abstractions, and APIs for developers to learn.
+- **Leverage existing knowledge**: The framework already knows which agents exist, what tools they have, and what conversations occurred. Evals should use this automatically rather than requiring the developer to re-specify it.
+- **Foundry-native results**: When using Foundry, results should be viewable in the Foundry portal with dashboards and comparison views.
+- **Progressive disclosure**: Simple scenarios should be near-zero code. Advanced scenarios should build on the same primitives.
+- **Cross-language parity**: Design must be implementable in both Python and .NET.
+
+## Considered Options
+
+1. **Provider-specific functions** — Build Foundry-specific helper functions (`evaluate_agent()`, etc.) directly in the Azure package. All eval functions take Foundry connection parameters.
+2. **Evaluator protocol with shared orchestration** — Define a provider-agnostic `Evaluator` protocol in the base agent library (`agent_framework` in Python, `Microsoft.Agents.AI` in .NET). Orchestration functions live alongside it. Providers implement the protocol.
+3. **Full eval framework** — Build comprehensive eval infrastructure including custom evaluator definitions, scoring profiles, and reporting inside agent-framework.
+
+## Decision Outcome
+
+Proposed option: "Evaluator protocol with shared orchestration", because it delivers the low-friction developer experience, supports multiple providers without API changes, and keeps the concept count low.
+
+### Usage Examples
+
+#### Evaluate an agent
+
+The agent is invoked once per query by default. For statistically meaningful evaluation, provide multiple diverse queries. For measuring **consistency** (does the same query produce reliable results?), use `num_repetitions` to run each query N times independently:
+
+**Python:**
+
+```python
+evals = FoundryEvals(
+    project_client=client,
+    model_deployment="gpt-4o",
+    evaluators=[FoundryEvals.RELEVANCE, FoundryEvals.COHERENCE],
+)
+
+results = await evaluate_agent(
+    agent=my_agent,
+    queries=[
+        "What's the weather in Seattle?",
+        "Plan a weekend trip to Portland",
+        "What restaurants are near Pike Place?",
+    ],
+    evaluators=evals,
+)
+for r in results:
+    r.assert_passed()
+```
+
+**C#:**
+
+```csharp
+var evals = new FoundryEvals(chatConfiguration, FoundryEvals.Relevance, FoundryEvals.Coherence);
+
+AgentEvaluationResults results = await agent.EvaluateAsync(
+    new[] {
+        "What's the weather in Seattle?",
+        "Plan a weekend trip to Portland",
+        "What restaurants are near Pike Place?",
+    },
+    evals);
+
+results.AssertAllPassed();
+```
+
+`evaluate_agent` returns one `EvalResults` per evaluator. Each result contains per-item scores with the evaluated response for auditing:
+
+```
+# results[0] (FoundryEvals)
+EvalResults(status="completed", passed=3, failed=0, total=3)
+  items[0]: EvalItemResult(
+    query="What's the weather in Seattle?",
+    response="It's currently 72°F and sunny in Seattle.",
+    scores={"relevance": 5, "coherence": 5})
+  items[1]: EvalItemResult(
+    query="Plan a weekend trip to Portland",
+    response="Here's a 2-day Portland itinerary...",
+    scores={"relevance": 4, "coherence": 5})
+  items[2]: EvalItemResult(
+    query="What restaurants are near Pike Place?",
+    response="Top restaurants near Pike Place Market: ...",
+    scores={"relevance": 5, "coherence": 4})
+```
+
+#### Measure consistency with repetitions
+
+Run each query multiple times to detect non-deterministic behavior:
+
+**Python:**
+
+```python
+results = await evaluate_agent(
+    agent=my_agent,
+    queries=["What's the weather in Seattle?"],
+    evaluators=evals,
+    num_repetitions=3,  # each query runs 3 times independently
+)
+# results contain 3 items (1 query × 3 repetitions)
+```
+
+**C#:**
+
+```csharp
+AgentEvaluationResults results = await agent.EvaluateAsync(
+    new[] { "What's the weather in Seattle?" },
+    evals,
+    numRepetitions: 3);  // each query runs 3 times independently
+// results contain 3 items (1 query × 3 repetitions)
+```
+
+#### Evaluate a response you already have
+
+When you already have agent responses, pass them directly to skip re-running the agent. Each query is paired with its corresponding response:
+
+**Python:**
+
+```python
+queries = ["What's the weather?", "What's the capital of France?"]
+responses = [await agent.run([Message("user", [q])]) for q in queries]
+
+results = await evaluate_agent(
+    responses=responses,
+    evaluators=evals,
+)
+```
+
+**C#:**
+
+```csharp
+var queries = new[] { "What's the weather?" };
+var responses = new List<AgentResponse>();
+foreach (var q in queries)
+    responses.Add(await agent.RunAsync(new[] { new ChatMessage(ChatRole.User, q) }));
+
+AgentEvaluationResults results = await agent.EvaluateAsync(
+    responses: responses,
+    evals);
+```
+
+Each `AgentResponse` already contains the conversation (query + response), so the evaluator extracts query/response from the conversation. When you pass `responses` without `queries`, the conversation is the source of truth.
+
+#### Evaluate with conversation split strategies
+
+By default, evaluators see only the last turn (final user message → final assistant response). For multi-turn conversations, you can control how the conversation is factored for evaluation:
+
+**Python:**
+
+```python
+results = await evaluate_agent(
+    agent=agent,
+    queries=["Plan a 3-day trip to Paris"],
+    evaluators=evals,
+    conversation_split=ConversationSplit.FULL,      # evaluate entire trajectory
+)
+
+# Or per-turn: each user→assistant exchange scored independently
+results = await evaluate_agent(
+    agent=agent,
+    queries=["Plan a 3-day trip to Paris"],
+    evaluators=evals,
+    conversation_split=ConversationSplit.PER_TURN,
+)
+```
+
+**C#:**
+
+```csharp
+// Full conversation as context
+AgentEvaluationResults results = await agent.EvaluateAsync(
+    new[] { "Plan a 3-day trip to Paris" },
+    evals,
+    splitter: ConversationSplitters.Full);
+
+// Per-turn splitting
+var items = EvalItem.PerTurnItems(conversation);  // one EvalItem per user turn
+var results = await evals.EvaluateAsync(items);
+```
+
+With `PER_TURN`, a 3-turn conversation produces 3 scored items:
+
+```
+EvalResults(status="completed", passed=3, failed=0, total=3)
+  items[0]: query="Plan a 3-day trip to Paris"    scores={"relevance": 5}
+  items[1]: query="What about restaurants?"        scores={"relevance": 4}
+  items[2]: query="Make it budget-friendly"        scores={"relevance": 5}
+```
+
+#### Evaluate a multi-agent workflow
+
+**Python:**
+
+```python
+result = await workflow.run("Plan a trip to Paris")
+eval_results = await evaluate_workflow(
+    workflow=workflow,
+    workflow_result=result,
+    evaluators=evals,
+)
+
+for r in eval_results:
+    print(f"  overall: {r.passed}/{r.total}")
+    for name, sub in r.sub_results.items():
+        print(f"    {name}: {sub.passed}/{sub.total}")
+```
+
+**C#:**
+
+```csharp
+WorkflowRunResult result = await workflow.RunAsync("Plan a trip to Paris");
+
+IReadOnlyList<AgentEvaluationResults> evalResults = await result.EvaluateAsync(evals);
+
+foreach (var r in evalResults)
+{
+    Console.WriteLine($"  overall: {r.Passed}/{r.Total}");
+    foreach (var (name, sub) in r.SubResults)
+        Console.WriteLine($"    {name}: {sub.Passed}/{sub.Total}");
+}
+```
+
+Workflows return one result per evaluator, with sub-results per agent in the workflow:
+
+```
+EvalResults(status="completed", passed=2, failed=0, total=2)
+  sub_results:
+    "planner":  EvalResults(passed=1, total=1)
+    "researcher": EvalResults(passed=1, total=1)
+```
+
+#### Mix multiple providers
+
+**Python:**
+
+```python
+@evaluator
+def is_helpful(response: str) -> bool:
+    return len(response.split()) > 10
+
+foundry = FoundryEvals(
+    project_client=client,
+    model_deployment="gpt-4o",
+    evaluators=[FoundryEvals.RELEVANCE, FoundryEvals.COHERENCE],
+)
+
+results = await evaluate_agent(
+    agent=agent,
+    queries=queries,
+    evaluators=[is_helpful, keyword_check("weather"), foundry],
+)
+```
+
+**C#:**
+
+```csharp
+IReadOnlyList<AgentEvaluationResults> results = await agent.EvaluateAsync(
+    queries,
+    evaluators: new IAgentEvaluator[]
+    {
+        new LocalEvaluator(
+            EvalChecks.KeywordCheck("weather"),
+            FunctionEvaluator.Create("is_helpful", (string r) => r.Split(' ').Length > 10)),
+        new FoundryEvals(chatConfiguration, FoundryEvals.Relevance, FoundryEvals.Coherence),
+    });
+```
+
+Multiple evaluators return one result each — `results[0]` is the local evaluator, `results[1]` is Foundry.
+
+#### Custom function evaluators
+
+**Python:**
+
+```python
+@evaluator
+def mentions_city(response: str, expected_output: str) -> bool:
+    return expected_output.lower() in response.lower()
+
+@evaluator
+def used_tools(conversation: list, tools: list) -> float:
+    # ... scoring logic
+    return score
+
+local = LocalEvaluator(mentions_city, used_tools)
+```
+
+`@evaluator` uses **parameter name injection** — the function's parameter names determine what data it receives from the `EvalItem`. Supported names: `query`, `response`, `expected`, `expected_tool_calls`, `conversation`, `tools`, `context`. Any combination is valid.
+
+**C#:**
+
+```csharp
+var local = new LocalEvaluator(
+    FunctionEvaluator.Create("mentions_city",
+        (EvalItem item) => item.ExpectedOutput != null
+            && item.Response.Contains(item.ExpectedOutput, StringComparison.OrdinalIgnoreCase)),
+    FunctionEvaluator.Create("is_concise",
+        (string response) => response.Split(' ').Length < 500));
+```
+
+## What To Build
+
+### Core: Evaluator Protocol
+
+A runtime-checkable protocol that any evaluation provider implements:
+
+```python
+@runtime_checkable
+class Evaluator(Protocol):
+    name: str
+
+    async def evaluate(
+        self, items: Sequence[EvalItem], *, eval_name: str = "Agent Framework Eval"
+    ) -> EvalResults: ...
+```
+
+The protocol is minimal — just `name` and `evaluate()`.
+
+### Core: EvalItem
+
+Provider-agnostic data format for items to evaluate:
+
+```python
+@dataclass
+class ExpectedToolCall:
+    name: str                                    # Tool/function name
+    arguments: dict[str, Any] | None = None      # None = don't check args
+
+@dataclass
+class EvalItem:
+    conversation: list[Message]               # Single source of truth
+    tools: list[FunctionTool] | None = None   # Agent's available tools
+    context: str | None = None
+    expected_output: str | None = None          # Ground-truth for comparison
+    expected_tool_calls: list[ExpectedToolCall] | None = None
+    split_strategy: ConversationSplitter | None = None
+
+    query: str       # property — derived from conversation split
+    response: str    # property — derived from conversation split
+```
+
+`conversation` is the single source of truth. `query` and `response` are derived properties — splitting the conversation at the last user message (default) and extracting text from each side. Changing the `split_strategy` consistently changes all derived values.
+
+`tools` provides typed `FunctionTool` objects — including MCP tools, which are automatically extracted after agent runs.
+
+### Internal: AgentEvalConverter
+
+Internal class that converts agent-framework types to `EvalItem`. Used by `evaluate_agent()` and `evaluate_workflow()` — not part of the public API:
+
+| Agent Framework | Eval Format |
+|---|---|
+| `Content.function_call` | `tool_call` in OpenAI chat format |
+| `Content.function_result` | `tool_result` in OpenAI chat format |
+| `FunctionTool` | `{name, description, parameters}` schema |
+| `Message` history | `conversation` list + `query`/`response` extraction |
+
+### Core: EvalResults
+
+Rich result type with convenience properties for CI integration:
+
+```python
+results.all_passed          # bool: no failures or errors (recursive for workflow)
+results.passed              # int: passing count
+results.failed              # int: failure count
+results.total               # int: total = passed + failed + errored
+results.items               # list[EvalItemResult]: per-item detail with query, response, and scores
+results.error               # str | None: error details on failure
+results.sub_results         # dict: per-agent breakdown (workflow evals)
+results.report_url          # str | None: portal link (Foundry)
+results.assert_passed()     # raises AssertionError with details
+```
+
+### Core: Orchestration Functions
+
+Provider-agnostic functions that extract data and delegate to evaluators:
+
+| Function | What it does |
+|---|---|
+| `evaluate_agent()` | Runs agent against test queries (or evaluates pre-existing `responses=`), converts to `EvalItem`s, passes to evaluator. Accepts optional `expected_output=` for ground-truth comparison, `expected_tool_calls=` for tool-correctness evaluation, and `num_repetitions=` for consistency measurement |
+| `evaluate_workflow()` | Extracts per-agent data from `WorkflowRunResult`, evaluates each agent and overall output. Per-agent breakdown in `sub_results`. Also accepts `num_repetitions=` |
+
+### Core: Conversation Split Strategies
+
+Multi-turn conversations must be split into query (input) and response (output) halves for evaluation. How you split determines *what you're evaluating*:
+
+**Last-turn split** — split at the last user message. Everything up to and including it is the query context; the agent's subsequent actions are the response:
+
+```
+conversation: user1 → assistant1 → user2 → assistant2(tool) → tool_result → assistant3
+query_messages:    [user1, assistant1, user2]
+response_messages: [assistant2(tool), tool_result, assistant3]
+```
+
+This evaluates: "Given all the context so far, did the agent answer the latest question well?" Best for response quality at a specific point in the conversation.
+
+**Full-conversation split** — the first user message is the query; everything after is the response:
+
+```
+query_messages:    [user1]
+response_messages: [assistant1, user2, assistant2(tool), tool_result, assistant3]
+```
+
+This evaluates: "Given the original request, did the entire conversation trajectory serve the user?" Best for task completion and overall conversation quality.
+
+**Per-turn split** — produces N eval items from an N-turn conversation. Each turn is evaluated with its cumulative context:
+
+```
+item 1: query = [user1],                        response = [assistant1]
+item 2: query = [user1, assistant1, user2],      response = [assistant2(tool), tool_result, assistant3]
+```
+
+This evaluates each response independently. Best for fine-grained analysis and pinpointing where a conversation goes wrong.
+
+These factorings produce different scores for the same conversation. The framework ships all three as built-in strategies, defaulting to last-turn. Developers can also provide a custom splitter — a function (Python) or `IConversationSplitter` implementation (.NET) — and override the strategy at the call site or per evaluator.
+
+### Azure AI: FoundryEvals
+
+`Evaluator` implementation backed by Azure AI Foundry:
+
+```python
+class FoundryEvals:
+    def __init__(self, *, project_client=None, openai_client=None,
+                 model_deployment: str, evaluators=None, ...)
+    async def evaluate(self, items, *, eval_name) -> EvalResults
+```
+
+**Smart auto-detection in `evaluate()`:**
+- Default evaluators: relevance, coherence, task_adherence
+- Auto-adds `tool_call_accuracy` when items have tools/`tool_definitions`
+- Filters out tool evaluators for items without tools
+
+### Azure AI: FoundryEvals Constants
+
+```python
+from agent_framework_azure_ai import FoundryEvals
+
+evaluators = [FoundryEvals.RELEVANCE, FoundryEvals.TOOL_CALL_ACCURACY]
+```
+
+Categories: Agent behavior, Tool usage, Quality, Safety.
+
+### Azure AI: Foundry-Specific Functions
+
+| Function | What it does |
+|---|---|
+| `evaluate_traces()` | Evaluate from stored response IDs or OTel traces |
+| `evaluate_foundry_target()` | Evaluate a Foundry-registered agent or deployment |
+
+### Core: LocalEvaluator and Function Evaluators
+
+`LocalEvaluator` implements the `Evaluator` protocol for fast, API-free evaluation. It runs check functions locally — useful for inner-loop development, CI smoke tests, and combining with cloud-based evaluators.
+
+Built-in checks:
+- `keyword_check(*keywords)` — response must contain specified keywords
+- `tool_called_check(*tool_names)` — agent must have called specified tools
+- `tool_calls_present` — all `expected_tool_calls` names appear in conversation (unordered, extras OK)
+- `tool_call_args_match` — expected tool calls match on name + arguments (subset match on args)
+
+Custom function evaluators use `@evaluator` to wrap plain Python functions. The function's **parameter names** determine what data it receives from the `EvalItem`:
+
+```python
+from agent_framework import evaluator, LocalEvaluator
+
+# Tier 1: Simple check — just query + response
+@evaluator
+def is_concise(response: str) -> bool:
+    return len(response.split()) < 500
+
+# Tier 2: Ground truth — compare against expected output
+@evaluator
+def mentions_city(response: str, expected_output: str) -> bool:
+    return expected_output.lower() in response.lower()
+
+# Tier 3: Full context — inspect conversation and tools
+@evaluator
+def used_tools(conversation: list, tools: list) -> float:
+    # ... scoring logic
+    return score
+
+local = LocalEvaluator(is_concise, mentions_city, used_tools)
+```
+
+Supported parameters: `query`, `response`, `expected`, `expected_tool_calls`, `conversation`, `tools`, `context`.
+Return types: `bool`, `float` (≥0.5 = pass), `dict` with `score` or `passed` key, or `CheckResult`.
+
+Async functions are handled automatically — `@evaluator` detects `async def` and produces the right wrapper.
+
+### Example: GAIA Benchmark
+
+[GAIA](https://huggingface.co/gaia-benchmark) tests real-world multi-step tasks with known expected answers. Each task has a question and a ground-truth answer, with optional file attachments. The framework accommodates GAIA's knobs (difficulty levels, file inputs, multi-step tool use) through the existing `EvalItem` fields:
+
+```python
+from datasets import load_dataset
+from agent_framework import evaluate_agent, evaluator, LocalEvaluator
+
+gaia = load_dataset("gaia-benchmark/GAIA", "2023_level1", split="test")
+
+@evaluator
+def exact_match(response: str, expected_output: str) -> bool:
+    return expected_output.strip().lower() in response.strip().lower()
+
+# Simple path — evaluate_agent handles running + expected_output stamping
+results = await evaluate_agent(
+    agent=agent,
+    queries=[task["Question"] for task in gaia],
+    expected_output=[task["Final answer"] for task in gaia],
+    evaluators=LocalEvaluator(exact_match),
+)
+```
+
+### Package Location
+
+- Core types and orchestration: `agent_framework._eval`, `agent_framework._local_eval` (Python), `Microsoft.Agents.AI` (.NET)
+- Foundry provider: `agent_framework_azure_ai._foundry_evals` (Python), `Microsoft.Agents.AI.AzureAI` (.NET)
+- Azure-AI re-exports core types for convenience (Python)
+
+## Known Limitations
+
+1. **Tool evaluators require query + agent**: Tool evaluators need tool definition schemas. When using these evaluators with `evaluate_agent(responses=...)`, provide `queries=` and pass an agent with tool definitions.
+2. **`model_deployment` always required**: Could potentially be inferred from the Foundry project configuration.
+
+## Open Questions
+
+1. **Red teaming non-registered agents**: Requires Foundry API support for callback-based flows.
+2. **Datasets with expected outputs**: A dataset abstraction for pre-populating `expected_output` values across eval runs is a natural next step but not yet designed.
+3. **Multi-modal evaluation**: The `conversation` field on `EvalItem` already stores full `Message`/`Content` (Python) and `ChatMessage` (.NET) objects, which can represent multi-modal content (images, audio, structured data). Evaluators that accept the full `EvalItem` or `conversation` parameter can access this content today. However, the convenience shortcuts — `query`/`response` string projections and the `FunctionEvaluator` string overloads — are text-only. Multi-modal-aware evaluators should use the full-item path (`Func<EvalItem, CheckResult>` in .NET, `conversation: list` parameter in Python).
+
+## .NET Implementation Design
+
+### Key Difference: MEAI Ecosystem
+
+Unlike Python, the .NET ecosystem already has `Microsoft.Extensions.AI.Evaluation` (v10.3.0) providing:
+
+- `IEvaluator` — per-item evaluation of `(messages, chatResponse) → EvaluationResult`
+- `CompositeEvaluator` — combines multiple evaluators
+- Quality evaluators — `RelevanceEvaluator`, `CoherenceEvaluator`, `GroundednessEvaluator`
+- Safety evaluators — `ContentHarmEvaluator`, `ProtectedMaterialEvaluator`
+- Metric types — `NumericMetric`, `BooleanMetric`, `StringMetric`
+
+The .NET integration uses MEAI's `IEvaluator` directly — no new evaluator interface. Our contribution is the **orchestration layer**: extension methods that run agents, extract data, call `IEvaluator` per item, and aggregate results.
+
+### Architecture
+
+```
+┌──────────────────────────────────────────────────────────────┐
+│  Developer Code                                              │
+│  agent.EvaluateAsync(queries, evaluator)                     │
+│  run.EvaluateAsync(evaluator)                                │
+└────────────────┬─────────────────────────────────────────────┘
+                 │
+┌────────────────▼─────────────────────────────────────────────┐
+│  Orchestration Layer (Microsoft.Agents.AI)                   │
+│  AgentEvaluationExtensions — runs agents, extracts data,     │
+│  calls IEvaluator per item, aggregates into                  │
+│  AgentEvaluationResults                                      │
+└────────────────┬─────────────────────────────────────────────┘
+                 │ IEvaluator (MEAI)
+                 │
+     ┌───────────┼────────────┐
+     │           │            │
+ ┌───▼───-┐  ┌───▼────┐  ┌────▼──────────┐
+ │ MEAI   │  │ Local  │  │ Foundry       │
+ │ Quality│  │ Checks │  │ (cloud batch) │
+ │ Safety │  │ Lambdas│  │               │
+ └────────┘  └────────┘  └───────────────┘
+```
+
+All evaluators implement MEAI's `IEvaluator`. The orchestration layer doesn't need to know which kind — it calls `EvaluateAsync(messages, chatResponse)` per item on all of them. `FoundryEvals` handles batching internally (buffers items, submits once, returns per-item results).
+
+### .NET Core Types
+
+**No new evaluator interface.** Use MEAI's `IEvaluator` directly.
+
+**`AgentEvaluationResults`** — The only new type. Aggregates per-item MEAI `EvaluationResult`s across a batch of queries:
+
+```csharp
+public class AgentEvaluationResults
+{
+    public string Provider { get; init; }
+    public string? ReportUrl { get; init; }
+
+    // Per-item — standard MEAI EvaluationResult, unchanged
+    public IReadOnlyList<EvaluationResult> Items { get; init; }
+
+    // Aggregate pass/fail derived from metric interpretations
+    public int Passed { get; }
+    public int Failed { get; }
+    public int Total { get; }
+    public bool AllPassed { get; }
+
+    // Workflow: per-agent breakdown
+    public IReadOnlyDictionary<string, AgentEvaluationResults>? SubResults { get; init; }
+
+    public void AssertAllPassed(string? message = null);
+}
+```
+
+### .NET Evaluator Implementations
+
+All implement MEAI's `IEvaluator`:
+
+**`LocalEvaluator`** — Runs lambda checks locally, returns `BooleanMetric` per check:
+
+```csharp
+var local = new LocalEvaluator(
+    FunctionEvaluator.Create("is_concise",
+        (string response) => response.Split().Length < 500),
+    EvalChecks.KeywordCheck("weather"),
+    EvalChecks.ToolCalledCheck("get_weather"));
+```
+
+**MEAI evaluators** — Used directly, no adapter needed:
+
+```csharp
+var quality = new CompositeEvaluator(
+    new RelevanceEvaluator(),
+    new CoherenceEvaluator());
+```
+
+**`FoundryEvals`** — Implements `IEvaluator` but batches internally. On first call, buffers the item. On the last item (or when explicitly flushed), submits the batch to Foundry and distributes per-item results:
+
+```csharp
+var foundry = new FoundryEvals(projectClient, "gpt-4o");
+```
+
+### .NET Orchestration: Extension Methods
+
+```csharp
+public static class AgentEvaluationExtensions
+{
+    // Evaluate an agent against test queries
+    public static Task<AgentEvaluationResults> EvaluateAsync(
+        this AIAgent agent,
+        IEnumerable<string> queries,
+        IEvaluator evaluator,
+        ChatConfiguration? chatConfiguration = null,
+        IEnumerable<string>? expectedOutput = null,
+        CancellationToken cancellationToken = default);
+
+    // Evaluate pre-existing responses (without re-running the agent)
+    public static Task<AgentEvaluationResults> EvaluateAsync(
+        this AIAgent agent,
+        AgentResponse responses,
+        IEvaluator evaluator,
+        IEnumerable<string>? queries = null,
+        ChatConfiguration? chatConfiguration = null,
+        IEnumerable<string>? expectedOutput = null,
+        CancellationToken cancellationToken = default);
+
+    // Evaluate with multiple evaluators (one result per evaluator)
+    public static Task<IReadOnlyList<AgentEvaluationResults>> EvaluateAsync(
+        this AIAgent agent,
+        IEnumerable<string> queries,
+        IEnumerable<IEvaluator> evaluators,
+        ChatConfiguration? chatConfiguration = null,
+        IEnumerable<string>? expectedOutput = null,
+        CancellationToken cancellationToken = default);
+
+    // Evaluate a workflow run with per-agent breakdown
+    public static Task<AgentEvaluationResults> EvaluateAsync(
+        this Run run,
+        IEvaluator evaluator,
+        ChatConfiguration? chatConfiguration = null,
+        bool includeOverall = true,
+        bool includePerAgent = true,
+        CancellationToken cancellationToken = default);
+}
+```
+
+**Usage:**
+
+```csharp
+// MEAI evaluators — just works
+var results = await agent.EvaluateAsync(
+    queries: ["What's the weather?"],
+    evaluator: new RelevanceEvaluator(),
+    chatConfiguration: new ChatConfiguration(evalClient));
+
+// Local checks
+var results = await agent.EvaluateAsync(
+    queries: ["What's the weather?"],
+    evaluator: new LocalEvaluator(
+        EvalChecks.KeywordCheck("weather")));
+
+// Foundry cloud
+var results = await agent.EvaluateAsync(
+    queries: ["What's the weather?"],
+    evaluator: new FoundryEvals(projectClient, "gpt-4o"));
+
+// Evaluate existing response (without re-running the agent)
+var response = await agent.RunAsync("What's the weather?");
+var results = await agent.EvaluateAsync(
+    responses: response,
+    queries: ["What's the weather?"],
+    evaluator: new FoundryEvals(projectClient, "gpt-4o"));
+
+// Mixed — one result per evaluator
+var results = await agent.EvaluateAsync(
+    queries: ["What's the weather?"],
+    evaluators: [
+        new LocalEvaluator(EvalChecks.KeywordCheck("weather")),
+        new RelevanceEvaluator(),
+        new FoundryEvals(projectClient, "gpt-4o")
+    ],
+    chatConfiguration: new ChatConfiguration(evalClient));
+
+// Workflow with per-agent breakdown
+Run run = await workflowRunner.RunAsync(workflow, "Plan a trip");
+var results = await run.EvaluateAsync(
+    evaluator: new FoundryEvals(projectClient, "gpt-4o"));
+```
+
+### .NET Function Evaluators
+
+Typed factory overloads (C# equivalent of Python's `@evaluator`):
+
+```csharp
+public static class FunctionEvaluator
+{
+    public static EvalCheck Create(string name, Func<string, bool> check);           // response only
+    public static EvalCheck Create(string name, Func<string, string?, bool> check);  // expectedOutput
+    public static EvalCheck Create(string name, Func<EvalItem, bool> check);         // full item
+    public static EvalCheck Create(string name, Func<EvalItem, CheckResult> check);  // full control
+    public static EvalCheck Create(string name, Func<string, Task<bool>> check);     // async
+}
+```
+
+`EvalItem` is a lightweight record used only by `FunctionEvaluator` and `LocalEvaluator` to pass context to check functions. It is not part of the `IEvaluator` interface:
+
+```csharp
+public record ExpectedToolCall(string Name, IReadOnlyDictionary<string, object>? Arguments = null);
+
+public sealed class EvalItem
+{
+    public EvalItem(string query, string response, IReadOnlyList<ChatMessage> conversation);
+
+    public string Query { get; }
+    public string Response { get; }
+    public IReadOnlyList<ChatMessage> Conversation { get; }
+    public IReadOnlyList<AITool>? Tools { get; set; }
+    public string? ExpectedOutput { get; set; }
+    public IReadOnlyList<ExpectedToolCall>? ExpectedToolCalls { get; set; }
+    public string? Context { get; set; }
+    public IConversationSplitter? Splitter { get; set; }
+}
+```
+
+### Workflow Data Extraction (.NET)
+
+`run.EvaluateAsync()` walks `Run.OutgoingEvents` via LINQ:
+
+1. Pair `ExecutorInvokedEvent` / `ExecutorCompletedEvent` by `ExecutorId`
+2. Extract `AgentResponseEvent` for per-agent `ChatResponse`
+3. Call `evaluator.EvaluateAsync()` per invocation
+4. Group by `ExecutorId` for per-agent `SubResults`
+5. Use final workflow output for overall eval
+
+### .NET Package Structure
+
+| Package | Contents |
+|---------|----------|
+| `Microsoft.Agents.AI` | `IAgentEvaluator`, `AgentEvaluationResults`, `LocalEvaluator`, `FunctionEvaluator`, `EvalChecks`, `EvalItem`, `ExpectedToolCall`, `AgentEvaluationExtensions` |
+| `Microsoft.Agents.AI.AzureAI` | `FoundryEvals` (provider + constants) |
+
+### Python ↔ .NET Mapping
+
+| Python | .NET |
+|--------|------|
+| `Evaluator` protocol | `IAgentEvaluator` (our interface; MEAI provides `IEvaluator` for per-item scoring) |
+| `EvalItem` dataclass | `EvalItem` class |
+| `EvalResults` | `AgentEvaluationResults` |
+| `EvalItemResult` / `EvalScoreResult` | MEAI `EvaluationResult` / `EvaluationMetric` (reused) |
+| `LocalEvaluator` | `LocalEvaluator` (implements `IAgentEvaluator`) |
+| `@evaluator` | `FunctionEvaluator.Create()` overloads |
+| `keyword_check()` / `tool_called_check()` | `EvalChecks.KeywordCheck()` / `EvalChecks.ToolCalledCheck()` |
+| `tool_calls_present` / `tool_call_args_match` | (custom `FunctionEvaluator` — same pattern) |
+| `ExpectedToolCall` dataclass | `ExpectedToolCall` record |
+| `FoundryEvals` | `FoundryEvals` (implements `IAgentEvaluator`, includes evaluator name constants) |
+| `evaluate_agent()` | `agent.EvaluateAsync(queries, evaluator)` extension method |
+| `evaluate_agent(responses=)` | `agent.EvaluateAsync(responses, evaluator)` extension method |
+| `evaluate_workflow()` | `run.EvaluateAsync()` extension method |
+
+## More Information
+
+- [Foundry Evals documentation](https://learn.microsoft.com/azure/ai-foundry/concepts/evaluation-approach-gen-ai) — Azure AI Foundry evaluation overview

dotnet/.github/skills/build-and-test/SKILL.md

@@ -17,14 +17,17 @@ dotnet format             # Auto-fix formatting for all projects
 
 # Build/test/format a specific project (preferred for isolated/internal changes)
 dotnet build src/Microsoft.Agents.AI.<Package> --tl:off
-dotnet test tests/Microsoft.Agents.AI.<Package>.UnitTests
+dotnet test --project tests/Microsoft.Agents.AI.<Package>.UnitTests
 dotnet format src/Microsoft.Agents.AI.<Package>
 
 # Run a single test
-dotnet test --filter "FullyQualifiedName~Namespace.TestClassName.TestMethodName"
+# Replace the filter values with the appropriate assembly, namespace, class, and method names for the test you want to run and use * as a wildcard elsewhere, e.g. "/*/*/HttpClientTests/GetAsync_ReturnsSuccessStatusCode"
+# Use `--ignore-exit-code 8` to avoid failing the build when no tests are found for some projects
+dotnet test --filter-query "/<assemblyFilter>/<namespaceFilter>/<classFilter>/<methodFilter>" --ignore-exit-code 8
 
 # Run unit tests only
-dotnet test --filter FullyQualifiedName\~UnitTests
+# Use `--ignore-exit-code 8` to avoid failing the build when no tests are found for integration test projects
+dotnet test --filter-query "/*UnitTests*/*/*/*" --ignore-exit-code 8
 ```
 
 Use `--tl:off` when building to avoid flickering when running commands in the agent.
@@ -56,7 +59,7 @@ Example: Running tests for a single project using .NET 10.
 
 ```bash
 # From dotnet/ directory
-dotnet test ./tests/Microsoft.Agents.AI.Abstractions.UnitTests -f net10.0
+dotnet test --project ./tests/Microsoft.Agents.AI.Abstractions.UnitTests -f net10.0
 ```
 
 Example: Running a single test in a specific project using .NET 10.
@@ -64,7 +67,7 @@ Provide the full namespace, class name, and method name for the test you want to
 
 ```bash
 # From dotnet/ directory
-dotnet test ./tests/Microsoft.Agents.AI.Abstractions.UnitTests -f net10.0 --filter "FullyQualifiedName~Microsoft.Agents.AI.Abstractions.UnitTests.AgentRunOptionsTests.CloningConstructorCopiesProperties"
+dotnet test --project ./tests/Microsoft.Agents.AI.Abstractions.UnitTests -f net10.0 --filter-query "/*/Microsoft.Agents.AI.Abstractions.UnitTests/AgentRunOptionsTests/CloningConstructorCopiesProperties"
 ```
 
 ### Multi-target framework tip
@@ -83,3 +86,45 @@ Just remember to run `dotnet restore` after pulling changes, making changes to p
 Unit tests target both .NET Framework as well as .NET Core. When running on Linux, only the .NET Core tests can be run, as .NET Framework is not supported on Linux.
 
 To run only the .NET Core tests, use the `-f net10.0` option with `dotnet test`.
+
+### Microsoft Testing Platform (MTP)
+
+Tests use the [Microsoft Testing Platform](https://learn.microsoft.com/dotnet/core/testing/unit-testing-platform-intro) via xUnit v3. Key differences from the legacy VSTest runner:
+
+- **`dotnet test` requires `--project`** to specify a test project directly (positional arguments are no longer supported).
+- **Test output** uses the MTP format (e.g., `[✓112/x0/↓0]` progress and `Test run summary: Passed!`).
+- **TRX reports** use `--report-xunit-trx` instead of `--logger trx`.
+- **Code coverage** uses `Microsoft.Testing.Extensions.CodeCoverage` with `--coverage --coverage-output-format cobertura`.
+- **Running a test project directly** is supported via `dotnet run --project <test-project>`. This bypasses the `dotnet test` infrastructure and runs the test executable directly with the MTP command line.
+
+- **Running tests across the solution** with a filter may cause some projects to match zero tests, which MTP treats as a failure (exit code 8). Use `--ignore-exit-code 8` to suppress this:
+
+```bash
+# Run all unit tests across the solution, ignoring projects with no matching tests
+dotnet test --solution ./agent-framework-dotnet.slnx --no-build -f net10.0 --ignore-exit-code 8
+```
+
+- **Running tests with `--solution` for a specific TFM** requires all projects in the solution to support that TFM. Not all projects target every framework (e.g., some are `net10.0`-only). Use `./dotnet/eng/scripts/New-FilteredSolution.ps1` to generate a filtered solution:
+
+```powershell
+# Generate a filtered solution for net472 and run tests
+$filtered = ./dotnet/eng/scripts/New-FilteredSolution.ps1 -Solution dotnet/agent-framework-dotnet.slnx -TargetFramework net472
+dotnet test --solution $filtered --no-build -f net472 --ignore-exit-code 8
+
+# Exclude samples and keep only unit test projects
+./dotnet/eng/scripts/New-FilteredSolution.ps1 -Solution dotnet/agent-framework-dotnet.slnx -TargetFramework net10.0 -ExcludeSamples -TestProjectNameFilter "*UnitTests*" -OutputPath dotnet/filtered-unit.slnx
+```
+
+```bash
+# Run tests via dotnet test (uses MTP under the hood)
+dotnet test --project ./tests/Microsoft.Agents.AI.UnitTests -f net10.0
+
+# Run tests with code coverage (Cobertura format)
+dotnet test --project ./tests/Microsoft.Agents.AI.UnitTests -f net10.0 --coverage --coverage-output-format cobertura --coverage-settings ./tests/coverage.runsettings
+
+# Run tests directly via dotnet run (MTP native command line)
+dotnet run --project ./tests/Microsoft.Agents.AI.UnitTests -f net10.0
+
+# Show MTP command line help
+dotnet run --project ./tests/Microsoft.Agents.AI.UnitTests -f net10.0 -- -?
+```

dotnet/Directory.Packages.props

@@ -11,19 +11,18 @@
   </PropertyGroup>
   <ItemGroup>
     <!-- Aspire.* -->
-    <PackageVersion Include="Anthropic" Version="12.3.0" />
-    <PackageVersion Include="Anthropic.Foundry" Version="0.4.1" />
+    <PackageVersion Include="Anthropic" Version="12.8.0" />
+    <PackageVersion Include="Anthropic.Foundry" Version="0.4.2" />
     <PackageVersion Include="Aspire.Azure.AI.OpenAI" Version="13.0.0-preview.1.25560.3" />
     <PackageVersion Include="Aspire.Hosting.AppHost" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Hosting.Azure.CognitiveServices" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Microsoft.Azure.Cosmos" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="CommunityToolkit.Aspire.OllamaSharp" Version="13.0.0" />
     <!-- Azure.* -->
-    <PackageVersion Include="Azure.AI.Projects" Version="2.0.0-beta.1" />
-    <PackageVersion Include="Azure.AI.Projects.OpenAI" Version="2.0.0-beta.1" />
-    <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.2.0-beta.8" />
-    <PackageVersion Include="Azure.AI.OpenAI" Version="2.8.0-beta.1" />
-    <PackageVersion Include="Azure.Identity" Version="1.17.1" />
+    <PackageVersion Include="Azure.AI.Projects" Version="2.0.0-beta.2" />
+    <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.2.0-beta.10" />
+    <PackageVersion Include="Azure.AI.OpenAI" Version="2.9.0-beta.1" />
+    <PackageVersion Include="Azure.Identity" Version="1.19.0" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.4.0" />
     <!-- Google Gemini  -->
     <PackageVersion Include="Google.GenAI" Version="0.11.0" />
@@ -33,18 +32,19 @@
     <!-- Newtonsoft.Json -->
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <!-- System.* -->
-    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.3" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.4" />
     <PackageVersion Include="Microsoft.Bcl.HashCode" Version="6.0.0" />
+    <PackageVersion Include="Microsoft.Bcl.Memory" Version="10.0.4" />
     <PackageVersion Include="System.ClientModel" Version="1.9.0" />
     <PackageVersion Include="System.CodeDom" Version="10.0.0" />
     <PackageVersion Include="System.Collections.Immutable" Version="10.0.1" />
     <PackageVersion Include="System.CommandLine" Version="2.0.0-rc.2.25502.107" />
-    <PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.3" />
-    <PackageVersion Include="System.Linq.AsyncEnumerable" Version="10.0.0" />
+    <PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.4" />
+    <PackageVersion Include="System.Linq.AsyncEnumerable" Version="10.0.4" />
     <PackageVersion Include="System.Net.Http.Json" Version="10.0.0" />
-    <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.3" />
-    <PackageVersion Include="System.Text.Json" Version="10.0.3" />
-    <PackageVersion Include="System.Threading.Channels" Version="10.0.3" />
+    <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.4" />
+    <PackageVersion Include="System.Text.Json" Version="10.0.4" />
+    <PackageVersion Include="System.Threading.Channels" Version="10.0.4" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
     <PackageVersion Include="System.Net.Security" Version="4.3.2" />
     <!-- OpenTelemetry -->
@@ -63,24 +63,25 @@
     <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0" />
     <PackageVersion Include="Swashbuckle.AspNetCore.SwaggerUI" Version="10.0.0" />
     <!-- Microsoft.Extensions.* -->
-    <PackageVersion Include="Microsoft.Extensions.AI" Version="10.3.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.3.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation" Version="10.3.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Quality" Version="10.3.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI" Version="10.4.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.4.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation" Version="10.4.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Quality" Version="10.4.0" />
     <PackageVersion Include="Microsoft.Extensions.AI.Evaluation.Safety" Version="10.3.0-preview.1.26109.11" />
-    <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.3.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.4.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="10.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.Compliance.Abstractions" Version="10.4.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Json" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.UserSecrets" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.3" />
+    <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.4" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.3" />
+    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.4" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.VectorData.Abstractions" Version="9.7.0" />
@@ -101,17 +102,18 @@
     <PackageVersion Include="Microsoft.Agents.Authentication.Msal" Version="1.3.171-beta" />
     <PackageVersion Include="Microsoft.Agents.Hosting.AspNetCore" Version="1.3.171-beta" />
     <!-- A2A -->
-    <PackageVersion Include="A2A" Version="0.3.3-preview" />
-    <PackageVersion Include="A2A.AspNetCore" Version="0.3.3-preview" />
+    <PackageVersion Include="A2A" Version="0.3.4-preview" />
+    <PackageVersion Include="A2A.AspNetCore" Version="0.3.4-preview" />
     <!-- MCP -->
-    <PackageVersion Include="ModelContextProtocol" Version="0.8.0-preview.1" />
+    <PackageVersion Include="ModelContextProtocol" Version="1.1.0" />
     <!-- Inference SDKs -->
     <PackageVersion Include="AWSSDK.Extensions.Bedrock.MEAI" Version="4.0.5.1" />
     <PackageVersion Include="Microsoft.ML.OnnxRuntimeGenAI" Version="0.10.0" />
+    <PackageVersion Include="Microsoft.ML.Tokenizers" Version="2.0.0" />
     <PackageVersion Include="OllamaSharp" Version="5.4.8" />
-    <PackageVersion Include="OpenAI" Version="2.8.0" />
+    <PackageVersion Include="OpenAI" Version="2.9.1" />
     <!-- Identity -->
-    <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.78.0" />
+    <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.83.1" />
     <!-- Workflows -->
     <PackageVersion Include="Microsoft.Agents.ObjectModel" Version="2026.2.4.1" />
     <PackageVersion Include="Microsoft.Agents.ObjectModel.Json" Version="2026.2.4.1" />
@@ -125,7 +127,7 @@
     <!-- Azure Functions -->
     <PackageVersion Include="Microsoft.Azure.Functions.Worker" Version="2.50.0" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="2.50.0" />
-    <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask" Version="1.11.0" />
+    <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask" Version="1.12.1" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask.AzureManaged" Version="1.0.1" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.3.0" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="2.1.0" />
@@ -140,15 +142,14 @@
     <PackageVersion Include="Microsoft.AspNetCore.TestHost" Condition="'$(TargetFramework)' == 'net10.0'" Version="10.0.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageVersion Include="Moq" Version="[4.18.4]" />
-    <PackageVersion Include="xunit" Version="2.9.3" />
-    <PackageVersion Include="xunit.abstractions" Version="2.0.3" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.3" />
-    <PackageVersion Include="Xunit.SkippableFact" Version="1.5.23" />
-    <PackageVersion Include="xretry" Version="1.9.0" />
-    <PackageVersion Include="coverlet.collector" Version="6.0.4" />
+    <PackageVersion Include="xunit.v3.mtp-v2" Version="3.2.2" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
+    <PackageVersion Include="xRetry.v3" Version="1.0.0-rc3" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.4.1" />
     <!-- Symbols -->
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <!-- Toolset -->
+    <PackageVersion Include="ReferenceTrimmer" Version="3.4.5" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="10.0.100" />

dotnet/agent-framework-dotnet.slnx

@@ -56,10 +56,30 @@
     <Project Path="samples/02-agents/Agents/Agent_Step15_DeepResearch/Agent_Step15_DeepResearch.csproj" />
     <Project Path="samples/02-agents/Agents/Agent_Step16_Declarative/Agent_Step16_Declarative.csproj" />
     <Project Path="samples/02-agents/Agents/Agent_Step17_AdditionalAIContext/Agent_Step17_AdditionalAIContext.csproj" />
+    <Project Path="samples/02-agents/Agents/Agent_Step18_CompactionPipeline/Agent_Step18_CompactionPipeline.csproj" />
   </Folder>
   <Folder Name="/Samples/02-agents/DeclarativeAgents/">
     <Project Path="samples/02-agents/DeclarativeAgents/ChatClient/DeclarativeChatClientAgents.csproj" />
   </Folder>
+  <Folder Name="/Samples/04-hosting/DurableWorkflows/" />
+  <Folder Name="/Samples/04-hosting/DurableWorkflows/ConsoleApps/">
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/01_SequentialWorkflow/01_SequentialWorkflow.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/02_ConcurrentWorkflow/02_ConcurrentWorkflow.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/03_ConditionalEdges/03_ConditionalEdges.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/04_WorkflowAndAgents/04_WorkflowAndAgents.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/05_WorkflowEvents/05_WorkflowEvents.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/06_WorkflowSharedState/06_WorkflowSharedState.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/07_SubWorkflows/07_SubWorkflows.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/ConsoleApps/08_WorkflowHITL/08_WorkflowHITL.csproj" />
+  </Folder>
+  <Folder Name="/Samples/04-hosting/DurableWorkflows/AzureFunctions/">
+    <Project Path="samples/04-hosting/DurableWorkflows/AzureFunctions/01_SequentialWorkflow/01_SequentialWorkflow.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/AzureFunctions/02_ConcurrentWorkflow/02_ConcurrentWorkflow.csproj" />
+    <Project Path="samples/04-hosting/DurableWorkflows/AzureFunctions/03_WorkflowHITL/03_WorkflowHITL.csproj" />
+  </Folder>
+  <Folder Name="/Samples/GettingStarted/">
+    <File Path="samples/GettingStarted/README.md" />
+  </Folder>
   <Folder Name="/Samples/02-agents/AGUI/">
     <File Path="samples/02-agents/AGUI/README.md" />
   </Folder>
@@ -103,6 +123,7 @@
     <Project Path="samples/02-agents/AgentWithMemory/AgentWithMemory_Step01_ChatHistoryMemory/AgentWithMemory_Step01_ChatHistoryMemory.csproj" />
     <Project Path="samples/02-agents/AgentWithMemory/AgentWithMemory_Step02_MemoryUsingMem0/AgentWithMemory_Step02_MemoryUsingMem0.csproj" />
     <Project Path="samples/02-agents/AgentWithMemory/AgentWithMemory_Step04_MemoryUsingFoundry/AgentWithMemory_Step04_MemoryUsingFoundry.csproj" />
+    <Project Path="samples/02-agents/AgentWithMemory/AgentWithMemory_Step05_BoundedChatHistory/AgentWithMemory_Step05_BoundedChatHistory.csproj" />
   </Folder>
   <Folder Name="/Samples/02-agents/AgentWithOpenAI/">
     <File Path="samples/02-agents/AgentWithOpenAI/README.md" />
@@ -284,8 +305,12 @@
   </Folder>
   <Folder Name="/Samples/05-end-to-end/HostedAgents/">
     <Project Path="samples/05-end-to-end/HostedAgents/AgentsInWorkflows/AgentsInWorkflows.csproj" />
+    <Project Path="samples/05-end-to-end/HostedAgents/AgentThreadAndHITL/AgentThreadAndHITL.csproj" />
     <Project Path="samples/05-end-to-end/HostedAgents/AgentWithHostedMCP/AgentWithHostedMCP.csproj" />
+    <Project Path="samples/05-end-to-end/HostedAgents/AgentWithLocalTools/AgentWithLocalTools.csproj" />
     <Project Path="samples/05-end-to-end/HostedAgents/AgentWithTextSearchRag/AgentWithTextSearchRag.csproj" />
+    <Project Path="samples/05-end-to-end/HostedAgents/FoundryMultiAgent/FoundryMultiAgent.csproj" />
+    <Project Path="samples/05-end-to-end/HostedAgents/FoundrySingleAgent/FoundrySingleAgent.csproj" />
   </Folder>
   <Folder Name="/Samples/05-end-to-end/AspNetAgentAuthorization/">
     <File Path="samples/05-end-to-end/AspNetAgentAuthorization/docker-compose.yml" />
@@ -311,7 +336,6 @@
   </Folder>
   <Folder Name="/Solution Items/.github/workflows/">
     <File Path="../.github/workflows/dotnet-build-and-test.yml" />
-    <File Path="../.github/workflows/dotnet-check-coverage.ps1" />
     <File Path="../.github/workflows/dotnet-format.yml" />
   </Folder>
   <Folder Name="/Solution Items/demos/">
@@ -348,6 +372,10 @@
     <File Path="eng/MSBuild/Shared.props" />
     <File Path="eng/MSBuild/Shared.targets" />
   </Folder>
+  <Folder Name="/Solution Items/eng/scripts/">
+    <File Path="eng/scripts/dotnet-check-coverage.ps1" />
+    <File Path="eng/scripts/New-FilteredSolution.ps1" />
+  </Folder>
   <Folder Name="/Solution Items/nuget/">
     <File Path="nuget/icon.png" />
     <File Path="nuget/nuget-package.props" />
@@ -413,6 +441,10 @@
     <File Path="src/Shared/IntegrationTests/OpenAIConfiguration.cs" />
     <File Path="src/Shared/IntegrationTests/README.md" />
   </Folder>
+  <Folder Name="/Solution Items/src/Shared/IntegrationTestsAzureCredentials/">
+    <File Path="src/Shared/IntegrationTestsAzureCredentials/README.md" />
+    <File Path="src/Shared/IntegrationTestsAzureCredentials/TestAzureCliCredentials.cs" />
+  </Folder>
   <Folder Name="/Solution Items/src/Shared/Samples/">
     <File Path="src/Shared/Samples/BaseSample.cs" />
     <File Path="src/Shared/Samples/README.md" />
@@ -420,6 +452,10 @@
     <File Path="src/Shared/Samples/TextOutputHelperExtensions.cs" />
     <File Path="src/Shared/Samples/XunitLogger.cs" />
   </Folder>
+  <Folder Name="/Solution Items/src/Shared/Redaction/">
+    <File Path="src/Shared/Redaction/README.md" />
+    <File Path="src/Shared/Redaction/ReplacingRedactor.cs" />
+  </Folder>
   <Folder Name="/Solution Items/src/Shared/Throw/">
     <File Path="src/Shared/Throw/README.md" />
     <File Path="src/Shared/Throw/Throw.cs" />
@@ -506,4 +542,4 @@
     <Project Path="tests/Microsoft.Agents.AI.Workflows.Generators.UnitTests/Microsoft.Agents.AI.Workflows.Generators.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.Workflows.UnitTests/Microsoft.Agents.AI.Workflows.UnitTests.csproj" />
   </Folder>
-</Solution>
+</Solution>

dotnet/agent-framework-release.slnf

@@ -14,6 +14,7 @@
       "src\\Microsoft.Agents.AI.Declarative\\Microsoft.Agents.AI.Declarative.csproj",
       "src\\Microsoft.Agents.AI.DevUI\\Microsoft.Agents.AI.DevUI.csproj",
       "src\\Microsoft.Agents.AI.DurableTask\\Microsoft.Agents.AI.DurableTask.csproj",
+      "src\\Microsoft.Agents.AI.FoundryMemory\\Microsoft.Agents.AI.FoundryMemory.csproj",
       "src\\Microsoft.Agents.AI.Hosting.A2A.AspNetCore\\Microsoft.Agents.AI.Hosting.A2A.AspNetCore.csproj",
       "src\\Microsoft.Agents.AI.Hosting.A2A\\Microsoft.Agents.AI.Hosting.A2A.csproj",
       "src\\Microsoft.Agents.AI.Hosting.AGUI.AspNetCore\\Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.csproj",

dotnet/eng/MSBuild/Shared.props

@@ -8,6 +8,9 @@
   <ItemGroup Condition="'$(InjectSharedIntegrationTestCode)' == 'true'">
     <Compile Include="$(MSBuildThisFileDirectory)\..\..\src\Shared\IntegrationTests\*.cs" LinkBase="Shared\IntegrationTests" />
   </ItemGroup>
+  <ItemGroup Condition="'$(InjectSharedIntegrationTestAzureCredentialsCode)' == 'true'">
+    <Compile Include="$(MSBuildThisFileDirectory)\..\..\src\Shared\IntegrationTestsAzureCredentials\*.cs" LinkBase="Shared\IntegrationTestsAzureCredentials" />
+  </ItemGroup>
   <ItemGroup Condition="'$(InjectSharedBuildTestCode)' == 'true'">
     <Compile Include="$(MSBuildThisFileDirectory)\..\..\src\Shared\CodeTests\*.cs" LinkBase="Shared\CodeTests" />
   </ItemGroup>
@@ -26,4 +29,7 @@
   <ItemGroup Condition="'$(InjectSharedDiagnosticIds)' == 'true'">
     <Compile Include="$(MSBuildThisFileDirectory)\..\..\src\Shared\DiagnosticIds\*.cs" LinkBase="Shared\DiagnosticIds" />
   </ItemGroup>
+  <ItemGroup Condition="'$(InjectSharedRedaction)' == 'true'">
+    <Compile Include="$(MSBuildThisFileDirectory)\..\..\src\Shared\Redaction\*.cs" LinkBase="Shared\Redaction" />
+  </ItemGroup>
 </Project>

dotnet/eng/scripts/New-FilteredSolution.ps1

@@ -0,0 +1,145 @@
+#!/usr/bin/env pwsh
+# Copyright (c) Microsoft. All rights reserved.
+
+<#
+.SYNOPSIS
+    Generates a filtered .slnx solution file by removing projects that don't match the specified criteria.
+
+.DESCRIPTION
+    Parses a .slnx solution file and applies one or more filters:
+    - Removes projects that don't support the specified target framework (via MSBuild query).
+    - Optionally removes all sample projects (under samples/).
+    - Optionally filters test projects by name pattern (e.g., only *UnitTests*).
+    Writes the filtered solution to the specified output path and prints the path.
+
+.PARAMETER Solution
+    Path to the source .slnx solution file.
+
+.PARAMETER TargetFramework
+    The target framework to filter by (e.g., net10.0, net472).
+
+.PARAMETER Configuration
+    Optional MSBuild configuration used when querying TargetFrameworks. Defaults to Debug.
+
+.PARAMETER TestProjectNameFilter
+    Optional wildcard pattern to filter test project names (e.g., *UnitTests*, *IntegrationTests*).
+    When specified, only test projects whose filename matches this pattern are kept.
+
+.PARAMETER ExcludeSamples
+    When specified, removes all projects under the samples/ directory from the solution.
+
+.PARAMETER OutputPath
+    Optional output path for the filtered .slnx file. If not specified, a temp file is created.
+
+.EXAMPLE
+    # Generate a filtered solution and run tests
+    $filtered = ./dotnet/eng/scripts/New-FilteredSolution.ps1 -Solution dotnet/agent-framework-dotnet.slnx -TargetFramework net472
+    dotnet test --solution $filtered --no-build -f net472
+
+.EXAMPLE
+    # Generate a solution with only unit test projects
+    ./dotnet/eng/scripts/New-FilteredSolution.ps1 -Solution dotnet/agent-framework-dotnet.slnx -TargetFramework net10.0 -TestProjectNameFilter "*UnitTests*" -OutputPath filtered-unit.slnx
+
+.EXAMPLE
+    # Inline usage with dotnet test (PowerShell)
+    dotnet test --solution (./dotnet/eng/scripts/New-FilteredSolution.ps1 -Solution dotnet/agent-framework-dotnet.slnx -TargetFramework net472) --no-build -f net472
+#>
+
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory)]
+    [string]$Solution,
+
+    [Parameter(Mandatory)]
+    [string]$TargetFramework,
+
+    [string]$Configuration = "Debug",
+
+    [string]$TestProjectNameFilter,
+
+    [switch]$ExcludeSamples,
+
+    [string]$OutputPath
+)
+
+$ErrorActionPreference = "Stop"
+
+# Resolve the solution path
+$solutionPath = Resolve-Path $Solution
+$solutionDir = Split-Path $solutionPath -Parent
+
+if (-not $OutputPath) {
+    $OutputPath = [System.IO.Path]::Combine([System.IO.Path]::GetTempPath(), "filtered-$(Split-Path $solutionPath -Leaf)")
+}
+
+# Parse the .slnx XML
+[xml]$slnx = Get-Content $solutionPath -Raw
+
+$removed = @()
+$kept = @()
+
+# Remove sample projects if requested
+if ($ExcludeSamples) {
+    $sampleProjects = $slnx.SelectNodes("//Project[contains(@Path, 'samples/')]")
+    foreach ($proj in $sampleProjects) {
+        $projRelPath = $proj.GetAttribute("Path")
+        Write-Verbose "Removing (sample): $projRelPath"
+        $removed += $projRelPath
+        $proj.ParentNode.RemoveChild($proj) | Out-Null
+    }
+    Write-Host "Removed $($sampleProjects.Count) sample project(s)." -ForegroundColor Yellow
+}
+
+# Filter all remaining projects by target framework
+$allProjects = $slnx.SelectNodes("//Project")
+
+foreach ($proj in $allProjects) {
+    $projRelPath = $proj.GetAttribute("Path")
+    $projFullPath = Join-Path $solutionDir $projRelPath
+    $projFileName = Split-Path $projRelPath -Leaf
+    $isTestProject = $projRelPath -like "*tests/*"
+
+    # Filter test projects by name pattern if specified
+    if ($isTestProject -and $TestProjectNameFilter -and ($projFileName -notlike $TestProjectNameFilter)) {
+        Write-Verbose "Removing (name filter): $projRelPath"
+        $removed += $projRelPath
+        $proj.ParentNode.RemoveChild($proj) | Out-Null
+        continue
+    }
+
+    if (-not (Test-Path $projFullPath)) {
+        Write-Verbose "Project not found, keeping in solution: $projRelPath"
+        $kept += $projRelPath
+        continue
+    }
+
+    # Query the project's target frameworks using MSBuild
+    $targetFrameworks = & dotnet msbuild $projFullPath -getProperty:TargetFrameworks -p:Configuration=$Configuration -nologo 2>$null
+    $targetFrameworks = $targetFrameworks.Trim()
+
+    if ($targetFrameworks -like "*$TargetFramework*") {
+        Write-Verbose "Keeping: $projRelPath (targets: $targetFrameworks)"
+        $kept += $projRelPath
+    }
+    else {
+        Write-Verbose "Removing: $projRelPath (targets: $targetFrameworks, missing: $TargetFramework)"
+        $removed += $projRelPath
+        $proj.ParentNode.RemoveChild($proj) | Out-Null
+    }
+}
+
+# Write the filtered solution
+$slnx.Save($OutputPath)
+
+# Report results to stderr so stdout is clean for piping
+Write-Host "Filtered solution written to: $OutputPath" -ForegroundColor Green
+if ($removed.Count -gt 0) {
+    Write-Host "Removed $($removed.Count) project(s):" -ForegroundColor Yellow
+    foreach ($r in $removed) {
+        Write-Host "  - $r" -ForegroundColor Yellow
+    }
+}
+Write-Host "Kept $($kept.Count) project(s)." -ForegroundColor Green
+
+# Output the path for piping
+Write-Output $OutputPath

dotnet/global.json

@@ -1,7 +1,10 @@
 {
     "sdk": {
-        "version": "10.0.100",
+        "version": "10.0.200",
         "rollForward": "minor",
         "allowPrerelease": false
+    },
+    "test": {
+        "runner": "Microsoft.Testing.Platform"
     }
 }

dotnet/nuget/nuget-package.props

@@ -2,11 +2,11 @@
   <PropertyGroup>
     <!-- Central version prefix - applies to all nuget packages. -->
     <VersionPrefix>1.0.0</VersionPrefix>
-    <RCNumber>3</RCNumber>
+    <RCNumber>4</RCNumber>
     <PackageVersion Condition="'$(IsReleaseCandidate)' == 'true'">$(VersionPrefix)-rc$(RCNumber)</PackageVersion>
-    <PackageVersion Condition="'$(IsReleaseCandidate)' != 'true' AND '$(VersionSuffix)' != ''">$(VersionPrefix)-$(VersionSuffix).260304.1</PackageVersion>
-    <PackageVersion Condition="'$(IsReleaseCandidate)' != 'true' AND '$(VersionSuffix)' == ''">$(VersionPrefix)-preview.260304.1</PackageVersion>
-    <GitTag>1.0.0-rc3</GitTag>
+    <PackageVersion Condition="'$(IsReleaseCandidate)' != 'true' AND '$(VersionSuffix)' != ''">$(VersionPrefix)-$(VersionSuffix).260311.1</PackageVersion>
+    <PackageVersion Condition="'$(IsReleaseCandidate)' != 'true' AND '$(VersionSuffix)' == ''">$(VersionPrefix)-preview.260311.1</PackageVersion>
+    <GitTag>1.0.0-rc4</GitTag>
 
     <Configurations>Debug;Release;Publish</Configurations>
     <IsPackable>true</IsPackable>

dotnet/samples/02-agents/AGUI/Step01_GettingStarted/Server/Program.cs

@@ -4,7 +4,6 @@ using Azure.AI.OpenAI;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Agents.AI.Hosting.AGUI.AspNetCore;
-using Microsoft.Extensions.AI;
 using OpenAI.Chat;
 
 WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
@@ -27,7 +26,7 @@ ChatClient chatClient = new AzureOpenAIClient(
         new DefaultAzureCredential())
     .GetChatClient(deploymentName);
 
-AIAgent agent = chatClient.AsIChatClient().AsAIAgent(
+AIAgent agent = chatClient.AsAIAgent(
     name: "AGUIAssistant",
     instructions: "You are a helpful assistant.");
 

dotnet/samples/02-agents/AGUI/Step01_GettingStarted/Server/Server.csproj

@@ -10,7 +10,6 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
   </ItemGroup>
 
   <ItemGroup>

dotnet/samples/02-agents/AGUI/Step02_BackendTools/Server/Program.cs

@@ -82,7 +82,7 @@ ChatClient chatClient = new AzureOpenAIClient(
         new DefaultAzureCredential())
     .GetChatClient(deploymentName);
 
-ChatClientAgent agent = chatClient.AsIChatClient().AsAIAgent(
+ChatClientAgent agent = chatClient.AsAIAgent(
     name: "AGUIAssistant",
     instructions: "You are a helpful assistant with access to restaurant information.",
     tools: tools);

dotnet/samples/02-agents/AGUI/Step02_BackendTools/Server/Server.csproj

@@ -10,7 +10,6 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
   </ItemGroup>
 
   <ItemGroup>

dotnet/samples/02-agents/AGUI/Step03_FrontendTools/Server/Program.cs

@@ -4,7 +4,6 @@ using Azure.AI.OpenAI;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Agents.AI.Hosting.AGUI.AspNetCore;
-using Microsoft.Extensions.AI;
 using OpenAI.Chat;
 
 WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
@@ -27,7 +26,7 @@ ChatClient chatClient = new AzureOpenAIClient(
         new DefaultAzureCredential())
     .GetChatClient(deploymentName);
 
-AIAgent agent = chatClient.AsIChatClient().AsAIAgent(
+AIAgent agent = chatClient.AsAIAgent(
     name: "AGUIAssistant",
     instructions: "You are a helpful assistant.");
 

dotnet/samples/02-agents/AGUI/Step03_FrontendTools/Server/Server.csproj

@@ -10,7 +10,6 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
   </ItemGroup>
 
   <ItemGroup>

dotnet/samples/02-agents/AGUI/Step04_HumanInLoop/Client/Program.cs

@@ -59,14 +59,14 @@ while ((input = Console.ReadLine()) != null && !input.Equals("exit", StringCompa
             {
                 switch (content)
                 {
-                    case FunctionApprovalRequestContent approvalRequest:
-                        DisplayApprovalRequest(approvalRequest);
+                    case ToolApprovalRequestContent approvalRequest when approvalRequest.ToolCall is FunctionCallContent fcc:
+                        DisplayApprovalRequest(approvalRequest, fcc);
 
-                        Console.Write($"\nApprove '{approvalRequest.FunctionCall.Name}'? (yes/no): ");
+                        Console.Write($"\nApprove '{fcc.Name}'? (yes/no): ");
                         string? userInput = Console.ReadLine();
                         bool approved = userInput?.ToUpperInvariant() is "YES" or "Y";
 
-                        FunctionApprovalResponseContent approvalResponse = approvalRequest.CreateResponse(approved);
+                        ToolApprovalResponseContent approvalResponse = approvalRequest.CreateResponse(approved);
 
                         if (approvalRequest.AdditionalProperties != null)
                         {
@@ -128,19 +128,19 @@ while ((input = Console.ReadLine()) != null && !input.Equals("exit", StringCompa
 }
 
 #pragma warning disable MEAI001
-static void DisplayApprovalRequest(FunctionApprovalRequestContent approvalRequest)
+static void DisplayApprovalRequest(ToolApprovalRequestContent approvalRequest, FunctionCallContent fcc)
 {
     Console.ForegroundColor = ConsoleColor.Yellow;
     Console.WriteLine();
     Console.WriteLine("============================================================");
     Console.WriteLine("APPROVAL REQUIRED");
     Console.WriteLine("============================================================");
-    Console.WriteLine($"Function: {approvalRequest.FunctionCall.Name}");
+    Console.WriteLine($"Function: {fcc.Name}");
 
-    if (approvalRequest.FunctionCall.Arguments != null)
+    if (fcc.Arguments != null)
     {
         Console.WriteLine("Arguments:");
-        foreach (var arg in approvalRequest.FunctionCall.Arguments)
+        foreach (var arg in fcc.Arguments)
         {
             Console.WriteLine($"  {arg.Key} = {arg.Value}");
         }

dotnet/samples/02-agents/AGUI/Step04_HumanInLoop/Client/ServerFunctionApprovalClientAgent.cs

@@ -9,7 +9,7 @@ using ServerFunctionApproval;
 
 /// <summary>
 /// A delegating agent that handles server function approval requests and responses.
-/// Transforms between FunctionApprovalRequestContent/FunctionApprovalResponseContent
+/// Transforms between ToolApprovalRequestContent/ToolApprovalResponseContent
 /// and the server's request_approval tool call pattern.
 /// </summary>
 internal sealed class ServerFunctionApprovalClientAgent : DelegatingAIAgent
@@ -50,14 +50,14 @@ internal sealed class ServerFunctionApprovalClientAgent : DelegatingAIAgent
     }
 
 #pragma warning disable MEAI001 // Type is for evaluation purposes only
-    private static FunctionResultContent ConvertApprovalResponseToToolResult(FunctionApprovalResponseContent approvalResponse, JsonSerializerOptions jsonOptions)
+    private static FunctionResultContent ConvertApprovalResponseToToolResult(ToolApprovalResponseContent approvalResponse, JsonSerializerOptions jsonOptions)
     {
         return new FunctionResultContent(
-            callId: approvalResponse.Id,
+            callId: approvalResponse.RequestId,
             result: JsonSerializer.SerializeToElement(
                 new ApprovalResponse
                 {
-                    ApprovalId = approvalResponse.Id,
+                    ApprovalId = approvalResponse.RequestId,
                     Approved = approvalResponse.Approved
                 },
                 jsonOptions));
@@ -89,7 +89,7 @@ internal sealed class ServerFunctionApprovalClientAgent : DelegatingAIAgent
     {
         List<ChatMessage>? result = null;
 
-        Dictionary<string, FunctionApprovalRequestContent> approvalRequests = [];
+        Dictionary<string, ToolApprovalRequestContent> approvalRequests = [];
         for (var messageIndex = 0; messageIndex < messages.Count; messageIndex++)
         {
             var message = messages[messageIndex];
@@ -102,21 +102,21 @@ internal sealed class ServerFunctionApprovalClientAgent : DelegatingAIAgent
                 var content = message.Contents[contentIndex];
 
                 // Handle pending approval requests (transform to tool call)
-                if (content is FunctionApprovalRequestContent approvalRequest &&
+                if (content is ToolApprovalRequestContent approvalRequest &&
                     approvalRequest.AdditionalProperties?.TryGetValue("original_function", out var originalFunction) == true &&
                     originalFunction is FunctionCallContent original)
                 {
-                    approvalRequests[approvalRequest.Id] = approvalRequest;
+                    approvalRequests[approvalRequest.RequestId] = approvalRequest;
                     transformedContents ??= CopyContentsUpToIndex(message.Contents, contentIndex);
                     transformedContents.Add(original);
                 }
                 // Handle pending approval responses (transform to tool result)
-                else if (content is FunctionApprovalResponseContent approvalResponse &&
-                    approvalRequests.TryGetValue(approvalResponse.Id, out var correspondingRequest))
+                else if (content is ToolApprovalResponseContent approvalResponse &&
+                    approvalRequests.TryGetValue(approvalResponse.RequestId, out var correspondingRequest))
                 {
                     transformedContents ??= CopyContentsUpToIndex(message.Contents, contentIndex);
                     transformedContents.Add(ConvertApprovalResponseToToolResult(approvalResponse, jsonSerializerOptions));
-                    approvalRequests.Remove(approvalResponse.Id);
+                    approvalRequests.Remove(approvalResponse.RequestId);
                     correspondingRequest.AdditionalProperties?.Remove("original_function");
                 }
                 // Skip historical approval content
@@ -198,8 +198,8 @@ internal sealed class ServerFunctionApprovalClientAgent : DelegatingAIAgent
                 var functionCallArgs = (Dictionary<string, object?>?)approvalRequest.FunctionArguments?
                     .Deserialize(jsonSerializerOptions.GetTypeInfo(typeof(Dictionary<string, object?>)));
 
-                var approvalRequestContent = new FunctionApprovalRequestContent(
-                    id: approvalRequest.ApprovalId,
+                var approvalRequestContent = new ToolApprovalRequestContent(
+                    requestId: approvalRequest.ApprovalId,
                     new FunctionCallContent(
                         callId: approvalRequest.ApprovalId,
                         name: approvalRequest.FunctionName,

dotnet/samples/02-agents/AGUI/Step04_HumanInLoop/Server/Program.cs

@@ -60,7 +60,7 @@ ChatClient openAIChatClient = new AzureOpenAIClient(
         new DefaultAzureCredential())
     .GetChatClient(deploymentName);
 
-ChatClientAgent baseAgent = openAIChatClient.AsIChatClient().AsAIAgent(
+ChatClientAgent baseAgent = openAIChatClient.AsAIAgent(
     name: "AGUIAssistant",
     instructions: "You are a helpful assistant in charge of approving expenses",
     tools: tools);

dotnet/samples/02-agents/AGUI/Step04_HumanInLoop/Server/Server.csproj

@@ -10,7 +10,6 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
   </ItemGroup>
 
   <ItemGroup>

dotnet/samples/02-agents/AGUI/Step04_HumanInLoop/Server/ServerFunctionApprovalServerAgent.cs

@@ -9,7 +9,7 @@ using ServerFunctionApproval;
 
 /// <summary>
 /// A delegating agent that handles function approval requests on the server side.
-/// Transforms between FunctionApprovalRequestContent/FunctionApprovalResponseContent
+/// Transforms between ToolApprovalRequestContent/ToolApprovalResponseContent
 /// and the request_approval tool call pattern for client communication.
 /// </summary>
 internal sealed class ServerFunctionApprovalAgent : DelegatingAIAgent
@@ -50,7 +50,7 @@ internal sealed class ServerFunctionApprovalAgent : DelegatingAIAgent
     }
 
 #pragma warning disable MEAI001 // Type is for evaluation purposes only
-    private static FunctionApprovalRequestContent ConvertToolCallToApprovalRequest(FunctionCallContent toolCall, JsonSerializerOptions jsonSerializerOptions)
+    private static ToolApprovalRequestContent ConvertToolCallToApprovalRequest(FunctionCallContent toolCall, JsonSerializerOptions jsonSerializerOptions)
     {
         if (toolCall.Name != "request_approval" || toolCall.Arguments == null)
         {
@@ -67,15 +67,15 @@ internal sealed class ServerFunctionApprovalAgent : DelegatingAIAgent
             throw new InvalidOperationException("Failed to deserialize approval request from tool call");
         }
 
-        return new FunctionApprovalRequestContent(
-            id: request.ApprovalId,
+        return new ToolApprovalRequestContent(
+            requestId: request.ApprovalId,
             new FunctionCallContent(
                 callId: request.ApprovalId,
                 name: request.FunctionName,
                 arguments: request.FunctionArguments));
     }
 
-    private static FunctionApprovalResponseContent ConvertToolResultToApprovalResponse(FunctionResultContent result, FunctionApprovalRequestContent approval, JsonSerializerOptions jsonSerializerOptions)
+    private static ToolApprovalResponseContent ConvertToolResultToApprovalResponse(FunctionResultContent result, ToolApprovalRequestContent approval, JsonSerializerOptions jsonSerializerOptions)
     {
         var approvalResponse = result.Result is JsonElement je ?
             (ApprovalResponse?)je.Deserialize(jsonSerializerOptions.GetTypeInfo(typeof(ApprovalResponse))) :
@@ -121,7 +121,7 @@ internal sealed class ServerFunctionApprovalAgent : DelegatingAIAgent
         // Track approval ID to original call ID mapping
         _ = new Dictionary<string, string>();
 #pragma warning disable MEAI001 // Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
-        Dictionary<string, FunctionApprovalRequestContent> trackedRequestApprovalToolCalls = new(); // Remote approvals
+        Dictionary<string, ToolApprovalRequestContent> trackedRequestApprovalToolCalls = new(); // Remote approvals
         for (int messageIndex = 0; messageIndex < messages.Count; messageIndex++)
         {
             var message = messages[messageIndex];
@@ -181,11 +181,10 @@ internal sealed class ServerFunctionApprovalAgent : DelegatingAIAgent
         {
             var content = update.Contents[i];
 #pragma warning disable MEAI001 // Type is for evaluation purposes only
-            if (content is FunctionApprovalRequestContent request)
+            if (content is ToolApprovalRequestContent request && request.ToolCall is FunctionCallContent functionCall)
             {
                 updatedContents ??= [.. update.Contents];
-                var functionCall = request.FunctionCall;
-                var approvalId = request.Id;
+                var approvalId = request.RequestId;
 
                 var approvalData = new ApprovalRequest
                 {

dotnet/samples/02-agents/AGUI/Step05_StateManagement/Server/Program.cs

@@ -4,7 +4,6 @@ using Azure.AI.OpenAI;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Agents.AI.Hosting.AGUI.AspNetCore;
-using Microsoft.Extensions.AI;
 using Microsoft.Extensions.Options;
 using OpenAI.Chat;
 using RecipeAssistant;
@@ -37,7 +36,7 @@ ChatClient chatClient = new AzureOpenAIClient(
         new DefaultAzureCredential())
     .GetChatClient(deploymentName);
 
-AIAgent baseAgent = chatClient.AsIChatClient().AsAIAgent(
+AIAgent baseAgent = chatClient.AsAIAgent(
     name: "RecipeAgent",
     instructions: """
         You are a helpful recipe assistant. When users ask you to create or suggest a recipe,

dotnet/samples/02-agents/AGUI/Step05_StateManagement/Server/Server.csproj

@@ -10,7 +10,6 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
-    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
   </ItemGroup>
 
   <ItemGroup>

dotnet/samples/02-agents/AgentProviders/Agent_With_AzureAIAgentsPersistent/Program.cs

@@ -1,5 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+#pragma warning disable CS0618 // Type or member is obsolete - sample uses deprecated PersistentAgentsClientExtensions
+
 // This sample shows how to create and use a simple AI agent with Azure Foundry Agents as the backend.
 
 using Azure.AI.Agents.Persistent;

dotnet/samples/02-agents/AgentProviders/Agent_With_AzureAIProject/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to create and use a AI agents with Azure Foundry Agents as the backend.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 

dotnet/samples/02-agents/AgentProviders/Agent_With_AzureOpenAIResponses/Program.cs

@@ -17,8 +17,8 @@ var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT
 AIAgent agent = new AzureOpenAIClient(
     new Uri(endpoint),
     new DefaultAzureCredential())
-     .GetResponsesClient(deploymentName)
-     .AsAIAgent(instructions: "You are good at telling jokes.", name: "Joker");
+     .GetResponsesClient()
+     .AsAIAgent(model: deploymentName, instructions: "You are good at telling jokes.", name: "Joker");
 
 // Invoke the agent and output the text result.
 Console.WriteLine(await agent.RunAsync("Tell me a joke about a pirate."));
@@ -29,8 +29,8 @@ Console.WriteLine(await agent.RunAsync("Tell me a joke about a pirate."));
 AIAgent agentStoreFalse = new AzureOpenAIClient(
     new Uri(endpoint),
     new DefaultAzureCredential())
-     .GetResponsesClient(deploymentName)
-     .AsIChatClientWithStoredOutputDisabled()
+     .GetResponsesClient()
+     .AsIChatClientWithStoredOutputDisabled(model: deploymentName)
      .AsAIAgent(instructions: "You are good at telling jokes.", name: "Joker");
 
 // Invoke the agent and output the text result.

dotnet/samples/02-agents/AgentProviders/Agent_With_CustomImplementation/Agent_With_CustomImplementation.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI\Microsoft.Agents.AI.csproj" />
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.Abstractions\Microsoft.Agents.AI.Abstractions.csproj" />
   </ItemGroup>
 
 </Project>

dotnet/samples/02-agents/AgentProviders/Agent_With_OpenAIResponses/Program.cs

@@ -11,8 +11,8 @@ var model = Environment.GetEnvironmentVariable("OPENAI_CHAT_MODEL_NAME") ?? "gpt
 
 AIAgent agent = new OpenAIClient(
     apiKey)
-     .GetResponsesClient(model)
-     .AsAIAgent(instructions: "You are good at telling jokes.", name: "Joker");
+     .GetResponsesClient()
+     .AsAIAgent(model: model, instructions: "You are good at telling jokes.", name: "Joker");
 
 // Invoke the agent and output the text result.
 Console.WriteLine(await agent.RunAsync("Tell me a joke about a pirate."));

dotnet/samples/02-agents/AgentSkills/Agent_Step01_BasicSkills/Program.cs

@@ -23,7 +23,7 @@ var skillsProvider = new FileAgentSkillsProvider(skillPath: Path.Combine(AppCont
 
 // --- Agent Setup ---
 AIAgent agent = new AzureOpenAIClient(new Uri(endpoint), new DefaultAzureCredential())
-    .GetResponsesClient(deploymentName)
+    .GetResponsesClient()
     .AsAIAgent(new ChatClientAgentOptions
     {
         Name = "SkillsAgent",
@@ -32,7 +32,8 @@ AIAgent agent = new AzureOpenAIClient(new Uri(endpoint), new DefaultAzureCredent
             Instructions = "You are a helpful assistant.",
         },
         AIContextProviders = [skillsProvider],
-    });
+    },
+    model: deploymentName);
 
 // --- Example 1: Expense policy question (loads FAQ resource) ---
 Console.WriteLine("Example 1: Checking expense policy FAQ");

dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step05_BoundedChatHistory/AgentWithMemory_Step05_BoundedChatHistory.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFrameworks>net10.0</TargetFrameworks>
+
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Azure.AI.OpenAI" />
+    <PackageReference Include="Azure.Identity" />
+    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
+    <PackageReference Include="Microsoft.SemanticKernel.Connectors.InMemory" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+  </ItemGroup>
+
+</Project>

dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step05_BoundedChatHistory/BoundedChatHistoryProvider.cs

@@ -0,0 +1,133 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using Microsoft.Agents.AI;
+using Microsoft.Extensions.AI;
+using Microsoft.Extensions.VectorData;
+
+namespace SampleApp;
+
+/// <summary>
+/// A <see cref="ChatHistoryProvider"/> that keeps a bounded window of recent messages in session state
+/// (via <see cref="InMemoryChatHistoryProvider"/>) and overflows older messages to a vector store
+/// (via <see cref="ChatHistoryMemoryProvider"/>). When providing chat history, it searches the vector
+/// store for relevant older messages and prepends them as a memory context message.
+/// </summary>
+/// <remarks>
+/// Only non-system messages are counted towards the session state limit and overflow mechanism. System messages are always retained in session state and are not included in the vector store.
+/// Function calls and function results are also dropped when truncation happens, both from in-memory state, and they are also not persisted to the vector store.
+/// </remarks>
+internal sealed class BoundedChatHistoryProvider : ChatHistoryProvider, IDisposable
+{
+    private readonly InMemoryChatHistoryProvider _chatHistoryProvider;
+    private readonly ChatHistoryMemoryProvider _memoryProvider;
+    private readonly TruncatingChatReducer _reducer;
+    private readonly string _contextPrompt;
+    private IReadOnlyList<string>? _stateKeys;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="BoundedChatHistoryProvider"/> class.
+    /// </summary>
+    /// <param name="maxSessionMessages">The maximum number of non-system messages to keep in session state before overflowing to the vector store.</param>
+    /// <param name="vectorStore">The vector store to use for storing and retrieving overflow chat history.</param>
+    /// <param name="collectionName">The name of the collection for storing overflow chat history in the vector store.</param>
+    /// <param name="vectorDimensions">The number of dimensions to use for the chat history vector store embeddings.</param>
+    /// <param name="stateInitializer">A delegate that initializes the memory provider state, providing the storage and search scopes.</param>
+    /// <param name="contextPrompt">Optional prompt to prefix memory search results. Defaults to a standard memory context prompt.</param>
+    public BoundedChatHistoryProvider(
+        int maxSessionMessages,
+        VectorStore vectorStore,
+        string collectionName,
+        int vectorDimensions,
+        Func<AgentSession?, ChatHistoryMemoryProvider.State> stateInitializer,
+        string? contextPrompt = null)
+    {
+        if (maxSessionMessages < 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(maxSessionMessages), "maxSessionMessages must be non-negative.");
+        }
+
+        this._reducer = new TruncatingChatReducer(maxSessionMessages);
+        this._chatHistoryProvider = new InMemoryChatHistoryProvider(new InMemoryChatHistoryProviderOptions
+        {
+            ChatReducer = this._reducer,
+            ReducerTriggerEvent = InMemoryChatHistoryProviderOptions.ChatReducerTriggerEvent.AfterMessageAdded,
+            StorageInputRequestMessageFilter = msgs => msgs,
+        });
+        this._memoryProvider = new ChatHistoryMemoryProvider(
+            vectorStore,
+            collectionName,
+            vectorDimensions,
+            stateInitializer,
+            options: new ChatHistoryMemoryProviderOptions
+            {
+                SearchInputMessageFilter = msgs => msgs,
+                StorageInputRequestMessageFilter = msgs => msgs,
+            });
+        this._contextPrompt = contextPrompt
+            ?? "The following are memories from earlier in this conversation. Use them to inform your responses:";
+    }
+
+    /// <inheritdoc />
+    public override IReadOnlyList<string> StateKeys => this._stateKeys ??= this._chatHistoryProvider.StateKeys.Concat(this._memoryProvider.StateKeys).ToArray();
+
+    /// <inheritdoc />
+    protected override async ValueTask<IEnumerable<ChatMessage>> ProvideChatHistoryAsync(
+        InvokingContext context,
+        CancellationToken cancellationToken = default)
+    {
+        // Delegate to the inner provider's full lifecycle (retrieve, filter, stamp, merge with request messages).
+        var chatHistoryProviderInputContext = new InvokingContext(context.Agent, context.Session, []);
+        var allMessages = await this._chatHistoryProvider.InvokingAsync(chatHistoryProviderInputContext, cancellationToken).ConfigureAwait(false);
+
+        // Search the vector store for relevant older messages.
+        var aiContext = new AIContext { Messages = context.RequestMessages.ToList() };
+        var invokingContext = new AIContextProvider.InvokingContext(
+            context.Agent, context.Session, aiContext);
+
+        var result = await this._memoryProvider.InvokingAsync(invokingContext, cancellationToken).ConfigureAwait(false);
+
+        // Extract only the messages added by the memory provider (stamped with AIContextProvider source type).
+        var memoryMessages = result.Messages?
+            .Where(m => m.GetAgentRequestMessageSourceType() == AgentRequestMessageSourceType.AIContextProvider)
+            .ToList();
+
+        if (memoryMessages is { Count: > 0 })
+        {
+            var memoryText = string.Join("\n", memoryMessages.Select(m => m.Text).Where(t => !string.IsNullOrWhiteSpace(t)));
+
+            if (!string.IsNullOrWhiteSpace(memoryText))
+            {
+                var contextMessage = new ChatMessage(ChatRole.User, $"{this._contextPrompt}\n{memoryText}");
+                return new[] { contextMessage }.Concat(allMessages);
+            }
+        }
+
+        return allMessages;
+    }
+
+    /// <inheritdoc />
+    protected override async ValueTask StoreChatHistoryAsync(
+        InvokedContext context,
+        CancellationToken cancellationToken = default)
+    {
+        // Delegate storage to the in-memory provider. Its TruncatingChatReducer (AfterMessageAdded trigger)
+        // will automatically truncate to the configured maximum and expose any removed messages.
+        var innerContext = new InvokedContext(
+            context.Agent, context.Session, context.RequestMessages, context.ResponseMessages!);
+        await this._chatHistoryProvider.InvokedAsync(innerContext, cancellationToken).ConfigureAwait(false);
+
+        // Archive any messages that the reducer removed to the vector store.
+        if (this._reducer.RemovedMessages is { Count: > 0 })
+        {
+            var overflowContext = new AIContextProvider.InvokedContext(
+                context.Agent, context.Session, this._reducer.RemovedMessages, []);
+            await this._memoryProvider.InvokedAsync(overflowContext, cancellationToken).ConfigureAwait(false);
+        }
+    }
+
+    /// <inheritdoc/>
+    public void Dispose()
+    {
+        this._memoryProvider.Dispose();
+    }
+}

dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step05_BoundedChatHistory/Program.cs

@@ -0,0 +1,79 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+// This sample shows how to create a bounded chat history provider that keeps a configurable number of
+// recent messages in session state and automatically overflows older messages to a vector store.
+// When the agent is invoked, it searches the vector store for relevant older messages and
+// prepends them as a "memory" context message before the recent session history.
+
+using Azure.AI.OpenAI;
+using Azure.Identity;
+using Microsoft.Agents.AI;
+using Microsoft.Extensions.AI;
+using Microsoft.Extensions.VectorData;
+using Microsoft.SemanticKernel.Connectors.InMemory;
+using OpenAI.Chat;
+using SampleApp;
+
+var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT") ?? throw new InvalidOperationException("AZURE_OPENAI_ENDPOINT is not set.");
+var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
+var embeddingDeploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME") ?? "text-embedding-3-large";
+
+// WARNING: DefaultAzureCredential is convenient for development but requires careful consideration in production.
+// In production, consider using a specific credential (e.g., ManagedIdentityCredential) to avoid
+// latency issues, unintended credential probing, and potential security risks from fallback mechanisms.
+var credential = new DefaultAzureCredential();
+
+// Create a vector store to store overflow chat messages.
+// For demonstration purposes, we are using an in-memory vector store.
+// Replace this with a persistent vector store implementation for production scenarios.
+VectorStore vectorStore = new InMemoryVectorStore(new InMemoryVectorStoreOptions()
+{
+    EmbeddingGenerator = new AzureOpenAIClient(new Uri(endpoint), credential)
+        .GetEmbeddingClient(embeddingDeploymentName)
+        .AsIEmbeddingGenerator()
+});
+
+var sessionId = Guid.NewGuid().ToString();
+
+// Create the BoundedChatHistoryProvider with a maximum of 4 non-system messages in session state.
+// It internally creates an InMemoryChatHistoryProvider with a TruncatingChatReducer and a
+// ChatHistoryMemoryProvider with the correct configuration to ensure overflow messages are
+// automatically archived to the vector store and recalled via semantic search.
+var boundedProvider = new BoundedChatHistoryProvider(
+    maxSessionMessages: 4,
+    vectorStore,
+    collectionName: "chathistory-overflow",
+    vectorDimensions: 3072,
+    session => new ChatHistoryMemoryProvider.State(
+        storageScope: new() { UserId = "UID1", SessionId = sessionId },
+        searchScope: new() { UserId = "UID1" }));
+
+// Create the agent with the bounded chat history provider.
+AIAgent agent = new AzureOpenAIClient(new Uri(endpoint), credential)
+    .GetChatClient(deploymentName)
+    .AsAIAgent(new ChatClientAgentOptions
+    {
+        ChatOptions = new() { Instructions = "You are a helpful assistant. Answer questions concisely." },
+        Name = "Assistant",
+        ChatHistoryProvider = boundedProvider,
+    });
+
+// Start a conversation. The first several exchanges will fill up the session state window.
+AgentSession session = await agent.CreateSessionAsync();
+
+Console.WriteLine("--- Filling the session window (4 messages max) ---\n");
+
+Console.WriteLine(await agent.RunAsync("My favorite color is blue.", session));
+Console.WriteLine(await agent.RunAsync("I have a dog named Max.", session));
+
+// At this point the session state holds 4 messages (2 user + 2 assistant).
+// The next exchange will push the oldest messages into the vector store.
+Console.WriteLine("\n--- Next exchange will trigger overflow to vector store ---\n");
+
+Console.WriteLine(await agent.RunAsync("What is the capital of France?", session));
+
+// The oldest messages about favorite color have now been archived to the vector store.
+// Ask the agent something that requires recalling the overflowed information.
+Console.WriteLine("\n--- Asking about overflowed information (should recall from vector store) ---\n");
+
+Console.WriteLine(await agent.RunAsync("What is my favorite color?", session));

dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step05_BoundedChatHistory/README.md

@@ -0,0 +1,40 @@
+# Bounded Chat History with Vector Store Overflow
+
+This sample demonstrates how to create a custom `ChatHistoryProvider` that keeps a bounded window of recent messages in session state and automatically overflows older messages to a vector store. When the agent is invoked, it searches the vector store for relevant older messages and prepends them as memory context.
+
+## Concepts
+
+- **`TruncatingChatReducer`**: A custom `IChatReducer` that keeps the most recent N messages and exposes removed messages via a `RemovedMessages` property.
+- **`BoundedChatHistoryProvider`**: A custom `ChatHistoryProvider` that composes:
+  - `InMemoryChatHistoryProvider` for fast session-state storage (bounded by the reducer)
+  - `ChatHistoryMemoryProvider` for vector-store overflow and semantic search of older messages
+
+## Prerequisites
+
+- [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0)
+- An Azure OpenAI resource with:
+  - A chat deployment (e.g., `gpt-4o-mini`)
+  - An embedding deployment (e.g., `text-embedding-3-large`)
+
+## Configuration
+
+Set the following environment variables:
+
+| Variable | Description | Default |
+|---|---|---|
+| `AZURE_OPENAI_ENDPOINT` | Your Azure OpenAI endpoint URL | *(required)* |
+| `AZURE_OPENAI_DEPLOYMENT_NAME` | Chat model deployment name | `gpt-4o-mini` |
+| `AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME` | Embedding model deployment name | `text-embedding-3-large` |
+
+## Running the Sample
+
+```bash
+dotnet run
+```
+
+## How it Works
+
+1. The agent starts a conversation with a bounded session window of 4 non-system, non-function messages (i.e., user/assistant turns). System messages are always preserved, and function call/result messages are truncated and not preserved.
+2. As messages accumulate beyond the limit, the `TruncatingChatReducer` removes the oldest messages.
+3. The `BoundedChatHistoryProvider` detects the removed messages and stores them in a vector store via `ChatHistoryMemoryProvider`.
+4. On subsequent invocations, the provider searches the vector store for relevant older messages and prepends them as memory context, allowing the agent to recall information from earlier in the conversation.

dotnet/samples/02-agents/AgentWithMemory/AgentWithMemory_Step05_BoundedChatHistory/TruncatingChatReducer.cs

@@ -0,0 +1,65 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using Microsoft.Extensions.AI;
+
+namespace SampleApp;
+
+/// <summary>
+/// A truncating chat reducer that keeps the most recent messages up to a configured maximum,
+/// preserving any leading system message. Removed messages are exposed via <see cref="RemovedMessages"/>
+/// so that a caller can archive them (e.g. to a vector store).
+/// </summary>
+internal sealed class TruncatingChatReducer : IChatReducer
+{
+    private readonly int _maxMessages;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="TruncatingChatReducer"/> class.
+    /// </summary>
+    /// <param name="maxMessages">The maximum number of non-system messages to retain.</param>
+    public TruncatingChatReducer(int maxMessages)
+    {
+        this._maxMessages = maxMessages > 0 ? maxMessages : throw new ArgumentOutOfRangeException(nameof(maxMessages));
+    }
+
+    /// <summary>
+    /// Gets the messages that were removed during the most recent call to <see cref="ReduceAsync"/>.
+    /// </summary>
+    public IReadOnlyList<ChatMessage> RemovedMessages { get; private set; } = [];
+
+    /// <inheritdoc />
+    public Task<IEnumerable<ChatMessage>> ReduceAsync(IEnumerable<ChatMessage> messages, CancellationToken cancellationToken)
+    {
+        _ = messages ?? throw new ArgumentNullException(nameof(messages));
+
+        ChatMessage? systemMessage = null;
+        Queue<ChatMessage> retained = new(capacity: this._maxMessages);
+        List<ChatMessage> removed = [];
+
+        foreach (var message in messages)
+        {
+            if (message.Role == ChatRole.System)
+            {
+                // Preserve the first system message outside the counting window.
+                systemMessage ??= message;
+            }
+            else if (!message.Contents.Any(c => c is FunctionCallContent or FunctionResultContent))
+            {
+                if (retained.Count >= this._maxMessages)
+                {
+                    removed.Add(retained.Dequeue());
+                }
+
+                retained.Enqueue(message);
+            }
+        }
+
+        this.RemovedMessages = removed;
+
+        IEnumerable<ChatMessage> result = systemMessage is not null
+            ? new[] { systemMessage }.Concat(retained)
+            : retained;
+
+        return Task.FromResult(result);
+    }
+}

dotnet/samples/02-agents/AgentWithMemory/README.md

@@ -8,5 +8,6 @@ These samples show how to create an agent with the Agent Framework that uses Mem
 |[Memory with MemoryStore](./AgentWithMemory_Step02_MemoryUsingMem0/)|This sample demonstrates how to create and run an agent that uses the Mem0 service to extract and retrieve individual memories.|
 |[Custom Memory Implementation](../../01-get-started/04_memory/)|This sample demonstrates how to create a custom memory component and attach it to an agent.|
 |[Memory with Azure AI Foundry](./AgentWithMemory_Step04_MemoryUsingFoundry/)|This sample demonstrates how to create and run an agent that uses Azure AI Foundry's managed memory service to extract and retrieve individual memories.|
+|[Bounded Chat History with Overflow](./AgentWithMemory_Step05_BoundedChatHistory/)|This sample demonstrates how to create a bounded chat history provider that overflows older messages to a vector store and recalls them as memories.|
 
 > **See also**: [Memory Search with Foundry Agents](../FoundryAgents/FoundryAgents_Step22_MemorySearch/) - demonstrates using the built-in Memory Search tool with Azure Foundry Agents.

dotnet/samples/02-agents/AgentWithOpenAI/Agent_OpenAI_Step02_Reasoning/Program.cs

@@ -10,8 +10,8 @@ var apiKey = Environment.GetEnvironmentVariable("OPENAI_API_KEY") ?? throw new I
 var model = Environment.GetEnvironmentVariable("OPENAI_CHAT_MODEL_NAME") ?? "gpt-5";
 
 var client = new OpenAIClient(apiKey)
-        .GetResponsesClient(model)
-        .AsIChatClient().AsBuilder()
+        .GetResponsesClient()
+        .AsIChatClient(model).AsBuilder()
         .ConfigureOptions(o =>
         {
             o.Reasoning = new()

dotnet/samples/02-agents/AgentWithOpenAI/Agent_OpenAI_Step04_CreateFromOpenAIResponseClient/OpenAIResponseClientAgent.cs

@@ -20,19 +20,21 @@ public class OpenAIResponseClientAgent : DelegatingAIAgent
     /// <param name="instructions">Optional instructions for the agent.</param>
     /// <param name="name">Optional name for the agent.</param>
     /// <param name="description">Optional description for the agent.</param>
+    /// <param name="model">Optional default model ID to use for requests. Required when using a plain <see cref="ResponsesClient"/> (not via Azure OpenAI).</param>
     /// <param name="loggerFactory">Optional instance of <see cref="ILoggerFactory"/></param>
     public OpenAIResponseClientAgent(
         ResponsesClient client,
         string? instructions = null,
         string? name = null,
         string? description = null,
+        string? model = null,
         ILoggerFactory? loggerFactory = null) :
         this(client, new()
         {
             Name = name,
             Description = description,
             ChatOptions = new ChatOptions() { Instructions = instructions },
-        }, loggerFactory)
+        }, model, loggerFactory)
     {
     }
 
@@ -41,10 +43,11 @@ public class OpenAIResponseClientAgent : DelegatingAIAgent
     /// </summary>
     /// <param name="client">Instance of <see cref="ResponsesClient"/></param>
     /// <param name="options">Options to create the agent.</param>
+    /// <param name="model">Optional default model ID to use for requests. Required when using a plain <see cref="ResponsesClient"/> (not via Azure OpenAI).</param>
     /// <param name="loggerFactory">Optional instance of <see cref="ILoggerFactory"/></param>
     public OpenAIResponseClientAgent(
-        ResponsesClient client, ChatClientAgentOptions options, ILoggerFactory? loggerFactory = null) :
-        base(new ChatClientAgent((client ?? throw new ArgumentNullException(nameof(client))).AsIChatClient(), options, loggerFactory))
+        ResponsesClient client, ChatClientAgentOptions options, string? model = null, ILoggerFactory? loggerFactory = null) :
+        base(new ChatClientAgent((client ?? throw new ArgumentNullException(nameof(client))).AsIChatClient(model), options, loggerFactory))
     {
     }
 

dotnet/samples/02-agents/AgentWithOpenAI/Agent_OpenAI_Step04_CreateFromOpenAIResponseClient/Program.cs

@@ -10,10 +10,10 @@ var apiKey = Environment.GetEnvironmentVariable("OPENAI_API_KEY") ?? throw new I
 var model = Environment.GetEnvironmentVariable("OPENAI_CHAT_MODEL_NAME") ?? "gpt-4o-mini";
 
 // Create a ResponsesClient directly from OpenAIClient
-ResponsesClient responseClient = new OpenAIClient(apiKey).GetResponsesClient(model);
+ResponsesClient responseClient = new OpenAIClient(apiKey).GetResponsesClient();
 
 // Create an agent directly from the ResponsesClient using OpenAIResponseClientAgent
-OpenAIResponseClientAgent agent = new(responseClient, instructions: "You are good at telling jokes.", name: "Joker");
+OpenAIResponseClientAgent agent = new(responseClient, instructions: "You are good at telling jokes.", name: "Joker", model: model);
 
 ResponseItem userMessage = ResponseItem.CreateUserMessageItem("Tell me a joke about a pirate.");
 

dotnet/samples/02-agents/AgentWithOpenAI/Agent_OpenAI_Step05_Conversation/Program.cs

@@ -22,7 +22,7 @@ OpenAIClient openAIClient = new(apiKey);
 ConversationClient conversationClient = openAIClient.GetConversationClient();
 
 // Create an agent directly from the ResponsesClient using OpenAIResponseClientAgent
-ChatClientAgent agent = new(openAIClient.GetResponsesClient(model).AsIChatClient(), instructions: "You are a helpful assistant.", name: "ConversationAgent");
+ChatClientAgent agent = new(openAIClient.GetResponsesClient().AsIChatClient(model), instructions: "You are a helpful assistant.", name: "ConversationAgent");
 
 ClientResult createConversationResult = await conversationClient.CreateConversationAsync(BinaryContent.Create(BinaryData.FromString("{}")));
 

dotnet/samples/02-agents/Agents/Agent_Step01_UsingFunctionToolsWithApprovals/Program.cs

@@ -36,11 +36,11 @@ AIAgent agent = new AzureOpenAIClient(
 // For simplicity, we are assuming here that only function approvals are pending.
 AgentSession session = await agent.CreateSessionAsync();
 AgentResponse response = await agent.RunAsync("What is the weather like in Amsterdam?", session);
-List<FunctionApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+List<ToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
 // For streaming use:
 // var updates = await agent.RunStreamingAsync("What is the weather like in Amsterdam?", session).ToListAsync();
-// approvalRequests = updates.SelectMany(x => x.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+// approvalRequests = updates.SelectMany(x => x.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
 while (approvalRequests.Count > 0)
 {
@@ -48,18 +48,18 @@ while (approvalRequests.Count > 0)
     List<ChatMessage> userInputResponses = approvalRequests
         .ConvertAll(functionApprovalRequest =>
         {
-            Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {functionApprovalRequest.FunctionCall.Name}");
+            Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {((FunctionCallContent)functionApprovalRequest.ToolCall).Name}");
             return new ChatMessage(ChatRole.User, [functionApprovalRequest.CreateResponse(Console.ReadLine()?.Equals("Y", StringComparison.OrdinalIgnoreCase) ?? false)]);
         });
 
     // Pass the user input responses back to the agent for further processing.
     response = await agent.RunAsync(userInputResponses, session);
 
-    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
     // For streaming use:
     // updates = await agent.RunStreamingAsync(userInputResponses, session).ToListAsync();
-    // approvalRequests = updates.SelectMany(x => x.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+    // approvalRequests = updates.SelectMany(x => x.Contents).OfType<ToolApprovalRequestContent>().ToList();
 }
 
 Console.WriteLine($"\nAgent: {response}");

dotnet/samples/02-agents/Agents/Agent_Step07_AsMcpTool/Agent_Step07_AsMcpTool.csproj

@@ -10,14 +10,14 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.AI.Agents.Persistent" />
+    <PackageReference Include="Azure.AI.Projects" />
     <PackageReference Include="Azure.Identity" />
     <PackageReference Include="Microsoft.Extensions.Hosting" />
     <PackageReference Include="ModelContextProtocol" />
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI.Persistent\Microsoft.Agents.AI.AzureAI.Persistent.csproj" />
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI\Microsoft.Agents.AI.AzureAI.csproj" />
   </ItemGroup>
   
 </Project>

dotnet/samples/02-agents/Agents/Agent_Step07_AsMcpTool/Program.cs

@@ -2,7 +2,7 @@
 
 // This sample shows how to expose an AI agent as an MCP tool.
 
-using Azure.AI.Agents.Persistent;
+using Azure.AI.Projects;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Extensions.DependencyInjection;
@@ -15,18 +15,15 @@ var deploymentName = Environment.GetEnvironmentVariable("AZURE_AI_MODEL_DEPLOYME
 // WARNING: DefaultAzureCredential is convenient for development but requires careful consideration in production.
 // In production, consider using a specific credential (e.g., ManagedIdentityCredential) to avoid
 // latency issues, unintended credential probing, and potential security risks from fallback mechanisms.
-var persistentAgentsClient = new PersistentAgentsClient(endpoint, new DefaultAzureCredential());
+var aiProjectClient = new AIProjectClient(new Uri(endpoint), new DefaultAzureCredential());
 
-// Create a server side persistent agent
-var agentMetadata = await persistentAgentsClient.Administration.CreateAgentAsync(
+// Create a server side agent and expose it as an AIAgent.
+AIAgent agent = await aiProjectClient.CreateAIAgentAsync(
     model: deploymentName,
     instructions: "You are good at telling jokes, and you always start each joke with 'Aye aye, captain!'.",
     name: "Joker",
     description: "An agent that tells jokes.");
 
-// Retrieve the server side persistent agent as an AIAgent.
-AIAgent agent = await persistentAgentsClient.GetAIAgentAsync(agentMetadata.Value.Id);
-
 // Convert the agent to an AIFunction and then to an MCP tool.
 // The agent name and description will be used as the mcp tool name and description.
 McpServerTool tool = McpServerTool.Create(agent.AsAIFunction());

dotnet/samples/02-agents/Agents/Agent_Step10_BackgroundResponsesWithToolsAndPersistence/Program.cs

@@ -25,8 +25,9 @@ var stateStore = new Dictionary<string, JsonElement?>();
 AIAgent agent = new AzureOpenAIClient(
     new Uri(endpoint),
     new DefaultAzureCredential())
-     .GetResponsesClient(deploymentName)
+     .GetResponsesClient()
      .AsAIAgent(
+        model: deploymentName,
         name: "SpaceNovelWriter",
         instructions: "You are a space novel writer. Always research relevant facts and generate character profiles for the main characters before writing novels." +
                       "Write complete chapters without asking for approval or feedback. Do not ask the user about tone, style, pace, or format preferences - just write the novel based on the request.",

dotnet/samples/02-agents/Agents/Agent_Step11_Middleware/Program.cs

@@ -246,7 +246,7 @@ async Task<AgentResponse> ConsolePromptingApprovalMiddleware(IEnumerable<ChatMes
     AgentResponse response = await innerAgent.RunAsync(messages, session, options, cancellationToken);
 
     // For simplicity, we are assuming here that only function approvals are pending.
-    List<FunctionApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+    List<ToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
     while (approvalRequests.Count > 0)
     {
@@ -255,13 +255,13 @@ async Task<AgentResponse> ConsolePromptingApprovalMiddleware(IEnumerable<ChatMes
         response.Messages = approvalRequests
             .ConvertAll(functionApprovalRequest =>
             {
-                Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {functionApprovalRequest.FunctionCall.Name}");
+                Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {((FunctionCallContent)functionApprovalRequest.ToolCall).Name}");
                 return new ChatMessage(ChatRole.User, [functionApprovalRequest.CreateResponse(Console.ReadLine()?.Equals("Y", StringComparison.OrdinalIgnoreCase) ?? false)]);
             });
 
         response = await innerAgent.RunAsync(response.Messages, session, options, cancellationToken);
 
-        approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+        approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
     }
 
     return response;

dotnet/samples/02-agents/Agents/Agent_Step14_BackgroundResponses/Program.cs

@@ -16,8 +16,8 @@ var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT
 AIAgent agent = new AzureOpenAIClient(
     new Uri(endpoint),
     new DefaultAzureCredential())
-     .GetResponsesClient(deploymentName)
-     .AsAIAgent();
+     .GetResponsesClient()
+     .AsAIAgent(model: deploymentName);
 
 // Enable background responses (only supported by OpenAI Responses at this time).
 AgentRunOptions options = new() { AllowBackgroundResponses = true };

dotnet/samples/02-agents/Agents/Agent_Step15_DeepResearch/Program.cs

@@ -1,5 +1,7 @@
 // Copyright (c) Microsoft. All rights reserved.
 
+#pragma warning disable CS0618 // Type or member is obsolete - sample uses deprecated PersistentAgentsClientExtensions
+
 // This sample shows how to create an Azure AI Foundry Agent with the Deep Research Tool.
 
 using Azure.AI.Agents.Persistent;

dotnet/samples/02-agents/Agents/Agent_Step17_AdditionalAIContext/Agent_Step17_AdditionalAIContext.csproj

@@ -12,13 +12,9 @@
     <PackageReference Include="Azure.AI.OpenAI" />
     <PackageReference Include="Azure.Identity" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
-    <PackageReference Include="Microsoft.Agents.ObjectModel" />
-    <PackageReference Include="Microsoft.Agents.ObjectModel.Json" />
-    <PackageReference Include="Microsoft.Agents.ObjectModel.PowerFx" />
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.Declarative\Microsoft.Agents.AI.Declarative.csproj" />
     <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
   </ItemGroup>
 

dotnet/samples/02-agents/Agents/Agent_Step18_CompactionPipeline/Agent_Step18_CompactionPipeline.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFrameworks>net10.0</TargetFrameworks>
+
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Azure.AI.OpenAI" />
+    <PackageReference Include="Azure.Identity" />
+    <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+  </ItemGroup>
+
+</Project>

dotnet/samples/02-agents/Agents/Agent_Step18_CompactionPipeline/Program.cs

@@ -0,0 +1,120 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+// This sample demonstrates how to use a CompactionProvider with a compaction pipeline
+// as an AIContextProvider for an agent's in-run context management. The pipeline chains multiple
+// compaction strategies from gentle to aggressive:
+//   1. ToolResultCompactionStrategy - Collapses old tool-call groups into concise summaries
+//   2. SummarizationCompactionStrategy - LLM-compresses older conversation spans
+//   3. SlidingWindowCompactionStrategy - Keeps only the most recent N user turns
+//   4. TruncationCompactionStrategy - Emergency token-budget backstop
+
+using System.ComponentModel;
+using Azure.AI.OpenAI;
+using Azure.Identity;
+using Microsoft.Agents.AI;
+using Microsoft.Agents.AI.Compaction;
+using Microsoft.Extensions.AI;
+
+var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT") ?? throw new InvalidOperationException("AZURE_OPENAI_ENDPOINT is not set.");
+var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
+
+// WARNING: DefaultAzureCredential is convenient for development but requires careful consideration in production.
+// In production, consider using a specific credential (e.g., ManagedIdentityCredential) to avoid
+// latency issues, unintended credential probing, and potential security risks from fallback mechanisms.
+AzureOpenAIClient openAIClient = new(new Uri(endpoint), new DefaultAzureCredential());
+
+// Create a chat client for the agent and a separate one for the summarization strategy.
+// Using the same model for simplicity; in production, use a smaller/cheaper model for summarization.
+IChatClient agentChatClient = openAIClient.GetChatClient(deploymentName).AsIChatClient();
+IChatClient summarizerChatClient = openAIClient.GetChatClient(deploymentName).AsIChatClient();
+
+// Define a tool the agent can use, so we can see tool-result compaction in action.
+[Description("Look up the current price of a product by name.")]
+static string LookupPrice([Description("The product name to look up.")] string productName) =>
+    productName.ToUpperInvariant() switch
+    {
+        "LAPTOP" => "The laptop costs $999.99.",
+        "KEYBOARD" => "The keyboard costs $79.99.",
+        "MOUSE" => "The mouse costs $29.99.",
+        _ => $"Sorry, I don't have pricing for '{productName}'."
+    };
+
+// Configure the compaction pipeline with one of each strategy, ordered least to most aggressive.
+PipelineCompactionStrategy compactionPipeline =
+    new(// 1. Gentle: collapse old tool-call groups into short summaries
+        new ToolResultCompactionStrategy(CompactionTriggers.MessagesExceed(7)),
+
+        // 2. Moderate: use an LLM to summarize older conversation spans into a concise message
+        new SummarizationCompactionStrategy(summarizerChatClient, CompactionTriggers.TokensExceed(0x500)),
+
+        // 3. Aggressive: keep only the last N user turns and their responses
+        new SlidingWindowCompactionStrategy(CompactionTriggers.TurnsExceed(4)),
+
+        // 4. Emergency: drop oldest groups until under the token budget
+        new TruncationCompactionStrategy(CompactionTriggers.TokensExceed(0x8000)));
+
+// Create the agent with a CompactionProvider that uses the compaction pipeline.
+AIAgent agent =
+    agentChatClient
+        .AsBuilder()
+        // Note: Adding the CompactionProvider at the builder level means it will be applied to all agents
+        // built from this builder and will manage context for both agent messages and tool calls.
+        .UseAIContextProviders(new CompactionProvider(compactionPipeline))
+        .BuildAIAgent(
+            new ChatClientAgentOptions
+            {
+                Name = "ShoppingAssistant",
+                ChatOptions = new()
+                {
+                    Instructions =
+                        """
+                        You are a helpful, but long winded, shopping assistant.
+                        Help the user look up prices and compare products.
+                        When responding, Be sure to be extra descriptive and use as
+                        many words as possible without sounding ridiculous.
+                        """,
+                    Tools = [AIFunctionFactory.Create(LookupPrice)]
+                },
+                // Note: AIContextProviders may be specified here instead of ChatClientBuilder.UseAIContextProviders.
+                // Specifying compaction at the agent level skips compaction in the function calling loop.
+                //AIContextProviders = [new CompactionProvider(compactionPipeline)]
+            });
+
+AgentSession session = await agent.CreateSessionAsync();
+
+// Helper to print chat history size
+void PrintChatHistory()
+{
+    if (session.TryGetInMemoryChatHistory(out var history))
+    {
+        Console.ForegroundColor = ConsoleColor.Cyan;
+        Console.WriteLine($"\n[Messages: #{history.Count}]\n");
+        Console.ResetColor();
+    }
+}
+
+// Run a multi-turn conversation with tool calls to exercise the pipeline.
+string[] prompts =
+[
+    "What's the price of a laptop?",
+    "How about a keyboard?",
+    "And a mouse?",
+    "Which product is the cheapest?",
+    "Can you compare the laptop and the keyboard for me?",
+    "What was the first product I asked about?",
+    "Thank you!",
+];
+
+foreach (string prompt in prompts)
+{
+    Console.ForegroundColor = ConsoleColor.Cyan;
+    Console.Write("\n[User] ");
+    Console.ResetColor();
+    Console.WriteLine(prompt);
+    Console.ForegroundColor = ConsoleColor.Cyan;
+    Console.Write("\n[Agent] ");
+    Console.ResetColor();
+    Console.WriteLine(await agent.RunAsync(prompt, session));
+
+    PrintChatHistory();
+}

dotnet/samples/02-agents/Agents/Agent_Step18_CompactionPipeline/README.md

@@ -0,0 +1,132 @@
+# Compaction Pipeline
+
+This sample demonstrates how to use a `CompactionProvider` with a `PipelineCompactionStrategy` to manage long conversation histories in a token-efficient way. The pipeline chains four compaction strategies, ordered from gentle to aggressive, so that the least disruptive strategy runs first and more aggressive strategies only activate when necessary.
+
+## What This Sample Shows
+
+- **`CompactionProvider`** — an `AIContextProvider` that applies a compaction strategy before each agent invocation, keeping only the most relevant messages within the model's context window
+- **`PipelineCompactionStrategy`** — chains multiple compaction strategies into an ordered pipeline; each strategy evaluates its own trigger independently and operates on the output of the previous one
+- **`ToolResultCompactionStrategy`** — collapses older tool-call groups into concise inline summaries, activated by a message-count trigger
+- **`SummarizationCompactionStrategy`** — uses an LLM to compress older conversation spans into a single summary message, activated by a token-count trigger
+- **`SlidingWindowCompactionStrategy`** — retains only the most recent N user turns and their responses, activated by a turn-count trigger
+- **`TruncationCompactionStrategy`** — emergency backstop that drops the oldest groups until the conversation fits within a hard token budget
+- **`CompactionTriggers`** — factory methods (`MessagesExceed`, `TokensExceed`, `TurnsExceed`, `GroupsExceed`, `HasToolCalls`, `All`, `Any`) that control when each strategy activates
+
+## Concepts
+
+### Message groups
+
+The compaction engine organizes messages into atomic *groups* that are treated as indivisible units during compaction. A group is either:
+
+| Group kind | Contents |
+|---|---|
+| `System` | System prompt message(s) |
+| `User` | A single user message |
+| `ToolCall` | One assistant message with tool calls + the matching tool result messages |
+| `AssistantText` | A single assistant text-only message |
+| `Summary` | One or more messages summarizing earlier conversation spans, produced by compaction strategies |
+
+`Summary` groups (`CompactionGroupKind.Summary`) are created by compaction strategies (for example, `SummarizationCompactionStrategy`) and do not originate directly from user or assistant messages.
+Strategies exclude entire groups rather than individual messages, preserving the tool-call/result pairing required by most model APIs.
+
+### Compaction triggers
+
+A `CompactionTrigger` is a predicate evaluated against the current `MessageIndex`. When the trigger fires, the strategy performs compaction; when it does not fire, the strategy is skipped. Available triggers are:
+
+| Trigger | Activates when… |
+|---|---|
+| `CompactionTriggers.Always` | Always (unconditional) |
+| `CompactionTriggers.Never` | Never (disabled) |
+| `CompactionTriggers.MessagesExceed(n)` | Included message count > n |
+| `CompactionTriggers.TokensExceed(n)` | Included token count > n |
+| `CompactionTriggers.TurnsExceed(n)` | Included user-turn count > n |
+| `CompactionTriggers.GroupsExceed(n)` | Included group count > n |
+| `CompactionTriggers.HasToolCalls()` | At least one included tool-call group exists |
+| `CompactionTriggers.All(...)` | All supplied triggers fire (logical AND) |
+| `CompactionTriggers.Any(...)` | Any supplied trigger fires (logical OR) |
+
+### Pipeline ordering
+
+Order strategies from **least aggressive** to **most aggressive**. The pipeline runs every strategy whose trigger is met. Earlier strategies reduce the conversation gently so that later, more destructive strategies may not need to activate at all.
+
+```
+1. ToolResultCompactionStrategy  – gentle:    replaces verbose tool results with a short label
+2. SummarizationCompactionStrategy – moderate: LLM-summarizes older turns
+3. SlidingWindowCompactionStrategy – aggressive: drops turns beyond the window
+4. TruncationCompactionStrategy   – emergency:  hard token-budget enforcement
+```
+
+## Prerequisites
+
+- .NET 10 SDK or later
+- Azure OpenAI service endpoint and model deployment
+- Azure CLI installed and authenticated
+
+**Note**: This sample uses `DefaultAzureCredential`. Sign in with `az login` before running. For production, prefer a specific credential such as `ManagedIdentityCredential`. For more information, see the [Azure CLI authentication documentation](https://learn.microsoft.com/cli/azure/authenticate-azure-cli-interactively).
+
+## Environment Variables
+
+```powershell
+$env:AZURE_OPENAI_ENDPOINT="https://your-resource.openai.azure.com/"  # Required
+$env:AZURE_OPENAI_DEPLOYMENT_NAME="gpt-4o-mini"                       # Optional, defaults to gpt-4o-mini
+```
+
+## Running the Sample
+
+```powershell
+cd dotnet/samples/02-agents/Agents/Agent_Step18_CompactionPipeline
+dotnet run
+```
+
+## Expected Behavior
+
+The sample runs a seven-turn shopping-assistant conversation with tool calls. After each turn it prints the full message count so you can observe the pipeline compaction doesn't alter the source conversation.
+
+Each of the four compaction strategies has a deliberately low threshold so that it activates during the short demonstration conversation. In a production scenario you would raise the thresholds to match your model's context window and cost requirements.
+
+## Customizing the Pipeline
+
+### Using a single strategy
+
+If you only need one compaction strategy, pass it directly to `CompactionProvider` without wrapping it in a pipeline:
+
+```csharp
+CompactionProvider provider =
+    new(new SlidingWindowCompactionStrategy(CompactionTriggers.TurnsExceed(20)));
+```
+
+### Ad-hoc compaction outside the provider pipeline
+
+`CompactionProvider.CompactAsync` applies a strategy to an arbitrary list of messages without an active agent session:
+
+```csharp
+IEnumerable<ChatMessage> compacted = await CompactionProvider.CompactAsync(
+    new TruncationCompactionStrategy(CompactionTriggers.TokensExceed(8000)),
+    existingMessages);
+```
+
+### Using a different model for summarization
+
+The `SummarizationCompactionStrategy` accepts any `IChatClient`. Use a smaller, cheaper model to reduce summarization cost:
+
+```csharp
+IChatClient summarizerChatClient = openAIClient.GetChatClient("gpt-4o-mini").AsIChatClient();
+new SummarizationCompactionStrategy(summarizerChatClient, CompactionTriggers.TokensExceed(4000))
+```
+
+### Registering through `ChatClientAgentOptions`
+
+`CompactionProvider` can also be specified directly on `ChatClientAgentOptions` instead of calling `UseAIContextProviders` on the `ChatClientBuilder`:
+
+```csharp
+AIAgent agent = agentChatClient
+    .AsBuilder()
+    .BuildAIAgent(new ChatClientAgentOptions
+    {
+        AIContextProviders = [new CompactionProvider(compactionPipeline)]
+    });
+```
+
+This places the compaction provider at the agent level instead of the chat client level, which allows you to use different compaction strategies for different agents that share the same chat client.
+
+> Note: In this mode the `CompactionProvider` is not engaged during the tool calling loop. Agent-level `AIContextProviders` run before chat history is stored, so any synthetic summary messages produced by `CompactionProvider` can become part of the persisted history when using `ChatHistoryProvider`. If you want to compact only the request context while preserving the original stored history, register `CompactionProvider` on the `ChatClientBuilder` via `UseAIContextProviders(...)` instead of on `ChatClientAgentOptions`.

dotnet/samples/02-agents/Agents/README.md

@@ -44,6 +44,7 @@ Before you begin, ensure you have the following prerequisites:
 |[Deep research with an agent](./Agent_Step15_DeepResearch/)|This sample demonstrates how to use the Deep Research Tool to perform comprehensive research on complex topics|
 |[Declarative agent](./Agent_Step16_Declarative/)|This sample demonstrates how to declaratively define an agent.|
 |[Providing additional AI Context to an agent using multiple AIContextProviders](./Agent_Step17_AdditionalAIContext/)|This sample demonstrates how to inject additional AI context into a ChatClientAgent using multiple custom AIContextProvider components that are attached to the agent.|
+|[Using compaction pipeline with an agent](./Agent_Step18_CompactionPipeline/)|This sample demonstrates how to use a compaction pipeline to efficiently limit the size of the conversation history for an agent.|
 
 ## Running the samples from the console
 

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step01.1_Basics/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to create and use AI agents with Azure Foundry Agents as the backend.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step01.2_Running/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to create and use a simple AI agent with Azure Foundry Agents as the backend.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step02_MultiturnConversation/Program.cs

@@ -2,8 +2,9 @@
 
 // This sample shows how to create and use a simple AI agent with a multi-turn conversation.
 
+using Azure.AI.Extensions.OpenAI;
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step04_UsingFunctionToolsWithApprovals/Program.cs

@@ -40,7 +40,7 @@ AgentResponse response = await agent.RunAsync("What is the weather like in Amste
 
 // Check if there are any approval requests.
 // For simplicity, we are assuming here that only function approvals are pending.
-List<FunctionApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+List<ToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
 while (approvalRequests.Count > 0)
 {
@@ -48,7 +48,7 @@ while (approvalRequests.Count > 0)
     List<ChatMessage> userInputMessages = approvalRequests
         .ConvertAll(functionApprovalRequest =>
         {
-            Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {functionApprovalRequest.FunctionCall.Name}");
+            Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {((FunctionCallContent)functionApprovalRequest.ToolCall).Name}");
             bool approved = Console.ReadLine()?.Equals("Y", StringComparison.OrdinalIgnoreCase) ?? false;
             return new ChatMessage(ChatRole.User, [functionApprovalRequest.CreateResponse(approved)]);
         });
@@ -56,7 +56,7 @@ while (approvalRequests.Count > 0)
     // Pass the user input responses back to the agent for further processing.
     response = await agent.RunAsync(userInputMessages, session);
 
-    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 }
 
 Console.WriteLine($"\nAgent: {response}");

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step12_Middleware/Program.cs

@@ -197,7 +197,7 @@ async Task<AgentResponse> ConsolePromptingApprovalMiddleware(IEnumerable<ChatMes
     AgentResponse response = await innerAgent.RunAsync(messages, session, options, cancellationToken);
 
     // For simplicity, we are assuming here that only function approvals are pending.
-    List<FunctionApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+    List<ToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
     while (approvalRequests.Count > 0)
     {
@@ -206,14 +206,14 @@ async Task<AgentResponse> ConsolePromptingApprovalMiddleware(IEnumerable<ChatMes
         response.Messages = approvalRequests
             .ConvertAll(functionApprovalRequest =>
             {
-                Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {functionApprovalRequest.FunctionCall.Name}");
+                Console.WriteLine($"The agent would like to invoke the following function, please reply Y to approve: Name {((FunctionCallContent)functionApprovalRequest.ToolCall).Name}");
                 bool approved = Console.ReadLine()?.Equals("Y", StringComparison.OrdinalIgnoreCase) ?? false;
                 return new ChatMessage(ChatRole.User, [functionApprovalRequest.CreateResponse(approved)]);
             });
 
         response = await innerAgent.RunAsync(response.Messages, session, options, cancellationToken);
 
-        approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<FunctionApprovalRequestContent>().ToList();
+        approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
     }
 
     return response;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step14_CodeInterpreter/Program.cs

@@ -4,7 +4,7 @@
 
 using System.Text;
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Extensions.AI;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step15_ComputerUse/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use Computer Use Tool with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Extensions.AI;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step16_FileSearch/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use File Search Tool with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Extensions.AI;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step17_OpenAPITools/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use OpenAPI Tools with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using OpenAI.Responses;
@@ -72,7 +72,7 @@ const string CountriesOpenApiSpec = """
 AIProjectClient aiProjectClient = new(new Uri(endpoint), new DefaultAzureCredential());
 
 // Create the OpenAPI function definition
-var openApiFunction = new OpenAPIFunctionDefinition(
+var openApiFunction = new OpenApiFunctionDefinition(
     "get_countries",
     BinaryData.FromString(CountriesOpenApiSpec),
     new OpenAPIAnonymousAuthenticationDetails())

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step18_BingCustomSearch/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use Bing Custom Search Tool with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using OpenAI.Responses;
@@ -25,7 +25,7 @@ const string AgentInstructions = """
 AIProjectClient aiProjectClient = new(new Uri(endpoint), new DefaultAzureCredential());
 
 // Bing Custom Search tool parameters shared by both options
-BingCustomSearchToolParameters bingCustomSearchToolParameters = new([
+BingCustomSearchToolOptions bingCustomSearchToolParameters = new([
     new BingCustomSearchConfiguration(connectionId, instanceName)
 ]);
 

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step19_SharePoint/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use SharePoint Grounding Tool with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using OpenAI.Responses;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step20_MicrosoftFabric/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use Microsoft Fabric Tool with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using OpenAI.Responses;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step21_WebSearch/Program.cs

@@ -3,7 +3,7 @@
 // This sample shows how to use the Responses API Web Search Tool with AI Agents.
 
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Extensions.AI;

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step22_MemorySearch/FoundryAgents_Step22_MemorySearch.csproj

@@ -13,7 +13,6 @@
     <PackageReference Include="Microsoft.Extensions.Logging.Console" />
     <PackageReference Include="Azure.Identity" />
     <PackageReference Include="Azure.AI.Projects" />
-    <PackageReference Include="Azure.AI.Projects.OpenAI" />
   </ItemGroup>
 
   <ItemGroup>

dotnet/samples/02-agents/FoundryAgents/FoundryAgents_Step22_MemorySearch/Program.cs

@@ -4,19 +4,17 @@
 // The Memory Search Tool enables agents to recall information from previous conversations,
 // supporting user profile persistence and chat summaries across sessions.
 
+using Azure.AI.Extensions.OpenAI;
 using Azure.AI.Projects;
-using Azure.AI.Projects.OpenAI;
+using Azure.AI.Projects.Agents;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using OpenAI.Responses;
 
 string endpoint = Environment.GetEnvironmentVariable("AZURE_AI_PROJECT_ENDPOINT") ?? throw new InvalidOperationException("AZURE_AI_PROJECT_ENDPOINT is not set.");
 string deploymentName = Environment.GetEnvironmentVariable("AZURE_AI_MODEL_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
-
-// Memory store configuration
-// NOTE: Memory stores must be created beforehand via Azure Portal or Python SDK.
-// The .NET SDK currently only supports using existing memory stores with agents.
-string memoryStoreName = Environment.GetEnvironmentVariable("AZURE_AI_MEMORY_STORE_ID") ?? throw new InvalidOperationException("AZURE_AI_MEMORY_STORE_ID is not set.");
+string embeddingModelName = Environment.GetEnvironmentVariable("AZURE_AI_EMBEDDING_DEPLOYMENT_NAME") ?? "text-embedding-ada-002";
+string memoryStoreName = Environment.GetEnvironmentVariable("AZURE_AI_MEMORY_STORE_ID") ?? $"foundry-memory-sample-{Guid.NewGuid():N}";
 
 const string AgentInstructions = """
     You are a helpful assistant that remembers past conversations.
@@ -32,71 +30,57 @@ const string AgentNameNative = "MemorySearchAgent-NATIVE";
 string userScope = $"user_{Environment.MachineName}";
 
 // Get a client to create/retrieve/delete server side agents with Azure Foundry Agents.
-AIProjectClient aiProjectClient = new(new Uri(endpoint), new AzureCliCredential());
+DefaultAzureCredential credential = new();
+AIProjectClient aiProjectClient = new(new Uri(endpoint), credential);
+
+// Ensure the memory store exists and has memories to retrieve.
+await EnsureMemoryStoreAsync();
 
 // Create the Memory Search tool configuration
-MemorySearchPreviewTool memorySearchTool = new(memoryStoreName, userScope)
-{
-    // Optional: Configure how quickly new memories are indexed (in seconds)
-    UpdateDelay = 1,
-
-    // Optional: Configure search behavior
-    SearchOptions = new MemorySearchToolOptions
-    {
-        // Additional search options can be configured here if needed
-    }
-};
+MemorySearchPreviewTool memorySearchTool = new(memoryStoreName, userScope) { UpdateDelayInSecs = 0 };
 
 // Create agent using Option 1 (MEAI) or Option 2 (Native SDK)
 AIAgent agent = await CreateAgentWithMEAI();
 // AIAgent agent = await CreateAgentWithNativeSDK();
 
-Console.WriteLine("Agent created with Memory Search tool. Starting conversation...\n");
-
-// Conversation 1: Share some personal information
-Console.WriteLine("User: My name is Alice and I love programming in C#.");
-AgentResponse response1 = await agent.RunAsync("My name is Alice and I love programming in C#.");
-Console.WriteLine($"Agent: {response1.Messages.LastOrDefault()?.Text}\n");
-
-// Allow time for memory to be indexed
-await Task.Delay(2000);
-
-// Conversation 2: Test if the agent remembers
-Console.WriteLine("User: What's my name and what programming language do I prefer?");
-AgentResponse response2 = await agent.RunAsync("What's my name and what programming language do I prefer?");
-Console.WriteLine($"Agent: {response2.Messages.LastOrDefault()?.Text}\n");
-
-// Inspect memory search results if available in raw response items
-// Note: Memory search tool call results appear as AgentResponseItem types
-foreach (var message in response2.Messages)
+try
 {
-    if (message.RawRepresentation is AgentResponseItem agentResponseItem &&
-        agentResponseItem is MemorySearchToolCallResponseItem memorySearchResult)
-    {
-        Console.WriteLine($"Memory Search Status: {memorySearchResult.Status}");
-        Console.WriteLine($"Memory Search Results Count: {memorySearchResult.Results.Count}");
+    Console.WriteLine("Agent created with Memory Search tool. Starting conversation...\n");
 
-        foreach (var result in memorySearchResult.Results)
+    // The agent uses the memory search tool to recall stored information.
+    Console.WriteLine("User: What's my name and what programming language do I prefer?");
+    AgentResponse response = await agent.RunAsync("What's my name and what programming language do I prefer?");
+    Console.WriteLine($"Agent: {response.Messages.LastOrDefault()?.Text}\n");
+
+    // Inspect memory search results if available in raw response items.
+    foreach (var message in response.Messages)
+    {
+        if (message.RawRepresentation is MemorySearchToolCallResponseItem memorySearchResult)
         {
-            var memoryItem = result.MemoryItem;
-            Console.WriteLine($"  - Memory ID: {memoryItem.MemoryId}");
-            Console.WriteLine($"    Scope: {memoryItem.Scope}");
-            Console.WriteLine($"    Content: {memoryItem.Content}");
-            Console.WriteLine($"    Updated: {memoryItem.UpdatedAt}");
+            Console.WriteLine($"Memory Search Status: {memorySearchResult.Status}");
+            Console.WriteLine($"Memory Search Results Count: {memorySearchResult.Results.Count}");
+
+            foreach (var result in memorySearchResult.Results)
+            {
+                var memoryItem = result.MemoryItem;
+                Console.WriteLine($"  - Memory ID: {memoryItem.MemoryId}");
+                Console.WriteLine($"    Scope: {memoryItem.Scope}");
+                Console.WriteLine($"    Content: {memoryItem.Content}");
+                Console.WriteLine($"    Updated: {memoryItem.UpdatedAt}");
+            }
         }
     }
 }
+finally
+{
+    // Cleanup: Delete the agent and memory store.
+    Console.WriteLine("\nCleaning up...");
+    await aiProjectClient.Agents.DeleteAgentAsync(agent.Name);
+    Console.WriteLine("Agent deleted.");
+    await aiProjectClient.MemoryStores.DeleteMemoryStoreAsync(memoryStoreName);
+    Console.WriteLine("Memory store deleted.");
+}
 
-// Cleanup: Delete the agent (memory store persists and should be cleaned up separately if needed)
-Console.WriteLine("\nCleaning up agent...");
-await aiProjectClient.Agents.DeleteAgentAsync(agent.Name);
-Console.WriteLine("Agent deleted successfully.");
-
-// NOTE: Memory stores are long-lived resources and are NOT deleted with the agent.
-// To delete a memory store, use the Azure Portal or Python SDK:
-// await project_client.memory_stores.delete(memory_store.name)
-
-// --- Agent Creation Options ---
 #pragma warning disable CS8321 // Local function is declared but never used
 
 // Option 1 - Using MemorySearchTool wrapped as MEAI AITool
@@ -122,3 +106,36 @@ async Task<AIAgent> CreateAgentWithNativeSDK()
             })
     );
 }
+
+// Helpers — kept at the bottom so the main agent flow above stays clean.
+async Task EnsureMemoryStoreAsync()
+{
+    Console.WriteLine($"Creating memory store '{memoryStoreName}'...");
+    try
+    {
+        await aiProjectClient.MemoryStores.GetMemoryStoreAsync(memoryStoreName);
+        Console.WriteLine("Memory store already exists.");
+    }
+    catch (System.ClientModel.ClientResultException ex) when (ex.Status == 404)
+    {
+        MemoryStoreDefaultDefinition definition = new(deploymentName, embeddingModelName);
+        await aiProjectClient.MemoryStores.CreateMemoryStoreAsync(memoryStoreName, definition, "Sample memory store for Memory Search demo");
+        Console.WriteLine("Memory store created.");
+    }
+
+    Console.WriteLine("Storing memories from a prior conversation...");
+    MemoryUpdateOptions memoryOptions = new(userScope) { UpdateDelay = 0 };
+    memoryOptions.Items.Add(ResponseItem.CreateUserMessageItem("My name is Alice and I love programming in C#."));
+
+    MemoryUpdateResult updateResult = await aiProjectClient.MemoryStores.WaitForMemoriesUpdateAsync(
+        memoryStoreName: memoryStoreName,
+        pollingInterval: 500,
+        options: memoryOptions);
+
+    if (updateResult.Status == MemoryStoreUpdateStatus.Failed)
+    {
+        throw new InvalidOperationException($"Memory update failed: {updateResult.ErrorDetails}");
+    }
+
+    Console.WriteLine($"Memory update completed (status: {updateResult.Status}).\n");
+}

dotnet/samples/02-agents/ModelContextProtocol/FoundryAgent_Hosted_MCP/FoundryAgent_Hosted_MCP.csproj

@@ -9,12 +9,12 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.AI.Agents.Persistent" />
+    <PackageReference Include="Azure.AI.Projects" />
     <PackageReference Include="Azure.Identity" />
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI.Persistent\Microsoft.Agents.AI.AzureAI.Persistent.csproj" />
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI\Microsoft.Agents.AI.AzureAI.csproj" />
   </ItemGroup>
 
 </Project>

dotnet/samples/02-agents/ModelContextProtocol/FoundryAgent_Hosted_MCP/Program.cs

@@ -4,7 +4,7 @@
 // In this case the Azure Foundry Agents service will invoke any MCP tools as required. MCP tools are not invoked by the Agent Framework.
 // The sample first shows how to use MCP tools with auto approval, and then how to set up a tool that requires approval before it can be invoked and how to approve such a tool.
 
-using Azure.AI.Agents.Persistent;
+using Azure.AI.Projects;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Extensions.AI;
@@ -16,7 +16,7 @@ var model = Environment.GetEnvironmentVariable("AZURE_AI_MODEL_DEPLOYMENT_NAME")
 // WARNING: DefaultAzureCredential is convenient for development but requires careful consideration in production.
 // In production, consider using a specific credential (e.g., ManagedIdentityCredential) to avoid
 // latency issues, unintended credential probing, and potential security risks from fallback mechanisms.
-var persistentAgentsClient = new PersistentAgentsClient(endpoint, new DefaultAzureCredential());
+var aiProjectClient = new AIProjectClient(new Uri(endpoint), new DefaultAzureCredential());
 
 // **** MCP Tool with Auto Approval ****
 // *************************************
@@ -31,8 +31,8 @@ var mcpTool = new HostedMcpServerTool(
     ApprovalMode = HostedMcpServerToolApprovalMode.NeverRequire
 };
 
-// Create a server side persistent agent with the mcp tool, and expose it as an AIAgent.
-AIAgent agent = await persistentAgentsClient.CreateAIAgentAsync(
+// Create a server side agent with the mcp tool, and expose it as an AIAgent.
+AIAgent agent = await aiProjectClient.CreateAIAgentAsync(
     model: model,
     options: new()
     {
@@ -49,7 +49,7 @@ AgentSession session = await agent.CreateSessionAsync();
 Console.WriteLine(await agent.RunAsync("Please summarize the Azure AI Agent documentation related to MCP Tool calling?", session));
 
 // Cleanup for sample purposes.
-await persistentAgentsClient.Administration.DeleteAgentAsync(agent.Id);
+aiProjectClient.Agents.DeleteAgent(agent.Name);
 
 // **** MCP Tool with Approval Required ****
 // *****************************************
@@ -64,8 +64,8 @@ var mcpToolWithApproval = new HostedMcpServerTool(
     ApprovalMode = HostedMcpServerToolApprovalMode.AlwaysRequire
 };
 
-// Create an agent based on Azure OpenAI Responses as the backend.
-AIAgent agentWithRequiredApproval = await persistentAgentsClient.CreateAIAgentAsync(
+// Create an agent with the MCP tool that requires approval.
+AIAgent agentWithRequiredApproval = await aiProjectClient.CreateAIAgentAsync(
     model: model,
     options: new()
     {
@@ -81,7 +81,7 @@ AIAgent agentWithRequiredApproval = await persistentAgentsClient.CreateAIAgentAs
 // For simplicity, we are assuming here that only mcp tool approvals are pending.
 AgentSession sessionWithRequiredApproval = await agentWithRequiredApproval.CreateSessionAsync();
 AgentResponse response = await agentWithRequiredApproval.RunAsync("Please summarize the Azure AI Agent documentation related to MCP Tool calling?", sessionWithRequiredApproval);
-List<McpServerToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<McpServerToolApprovalRequestContent>().ToList();
+List<ToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
 while (approvalRequests.Count > 0)
 {
@@ -89,11 +89,12 @@ while (approvalRequests.Count > 0)
     List<ChatMessage> userInputResponses = approvalRequests
         .ConvertAll(approvalRequest =>
         {
+            McpServerToolCallContent mcpToolCall = (McpServerToolCallContent)approvalRequest.ToolCall!;
             Console.WriteLine($"""
                 The agent would like to invoke the following MCP Tool, please reply Y to approve.
-                ServerName: {approvalRequest.ToolCall.ServerName}
-                Name: {approvalRequest.ToolCall.ToolName}
-                Arguments: {string.Join(", ", approvalRequest.ToolCall.Arguments?.Select(x => $"{x.Key}: {x.Value}") ?? [])}
+                ServerName: {mcpToolCall.ServerName}
+                Name: {mcpToolCall.Name}
+                Arguments: {string.Join(", ", mcpToolCall.Arguments?.Select(x => $"{x.Key}: {x.Value}") ?? [])}
                 """);
             return new ChatMessage(ChatRole.User, [approvalRequest.CreateResponse(Console.ReadLine()?.Equals("Y", StringComparison.OrdinalIgnoreCase) ?? false)]);
         });
@@ -101,7 +102,7 @@ while (approvalRequests.Count > 0)
     // Pass the user input responses back to the agent for further processing.
     response = await agentWithRequiredApproval.RunAsync(userInputResponses, sessionWithRequiredApproval);
 
-    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<McpServerToolApprovalRequestContent>().ToList();
+    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 }
 
 Console.WriteLine($"\nAgent: {response}");

dotnet/samples/02-agents/ModelContextProtocol/ResponseAgent_Hosted_MCP/Program.cs

@@ -33,8 +33,9 @@ var mcpTool = new HostedMcpServerTool(
 AIAgent agent = new AzureOpenAIClient(
     new Uri(endpoint),
     new DefaultAzureCredential())
-     .GetResponsesClient(deploymentName)
+     .GetResponsesClient()
      .AsAIAgent(
+        model: deploymentName,
         instructions: "You answer questions by searching the Microsoft Learn content only.",
         name: "MicrosoftLearnAgent",
         tools: [mcpTool]);
@@ -60,8 +61,9 @@ var mcpToolWithApproval = new HostedMcpServerTool(
 AIAgent agentWithRequiredApproval = new AzureOpenAIClient(
     new Uri(endpoint),
     new DefaultAzureCredential())
-    .GetResponsesClient(deploymentName)
+    .GetResponsesClient()
     .AsAIAgent(
+        model: deploymentName,
         instructions: "You answer questions by searching the Microsoft Learn content only.",
         name: "MicrosoftLearnAgentWithApproval",
         tools: [mcpToolWithApproval]);
@@ -70,7 +72,7 @@ AIAgent agentWithRequiredApproval = new AzureOpenAIClient(
 // For simplicity, we are assuming here that only mcp tool approvals are pending.
 AgentSession sessionWithRequiredApproval = await agentWithRequiredApproval.CreateSessionAsync();
 AgentResponse response = await agentWithRequiredApproval.RunAsync("Please summarize the Azure AI Agent documentation related to MCP Tool calling?", sessionWithRequiredApproval);
-List<McpServerToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<McpServerToolApprovalRequestContent>().ToList();
+List<ToolApprovalRequestContent> approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 
 while (approvalRequests.Count > 0)
 {
@@ -78,11 +80,12 @@ while (approvalRequests.Count > 0)
     List<ChatMessage> userInputResponses = approvalRequests
         .ConvertAll(approvalRequest =>
         {
+            McpServerToolCallContent mcpToolCall = (McpServerToolCallContent)approvalRequest.ToolCall!;
             Console.WriteLine($"""
                 The agent would like to invoke the following MCP Tool, please reply Y to approve.
-                ServerName: {approvalRequest.ToolCall.ServerName}
-                Name: {approvalRequest.ToolCall.ToolName}
-                Arguments: {string.Join(", ", approvalRequest.ToolCall.Arguments?.Select(x => $"{x.Key}: {x.Value}") ?? [])}
+                ServerName: {mcpToolCall.ServerName}
+                Name: {mcpToolCall.Name}
+                Arguments: {string.Join(", ", mcpToolCall.Arguments?.Select(x => $"{x.Key}: {x.Value}") ?? [])}
                 """);
             return new ChatMessage(ChatRole.User, [approvalRequest.CreateResponse(Console.ReadLine()?.Equals("Y", StringComparison.OrdinalIgnoreCase) ?? false)]);
         });
@@ -90,7 +93,7 @@ while (approvalRequests.Count > 0)
     // Pass the user input responses back to the agent for further processing.
     response = await agentWithRequiredApproval.RunAsync(userInputResponses, sessionWithRequiredApproval);
 
-    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<McpServerToolApprovalRequestContent>().ToList();
+    approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType<ToolApprovalRequestContent>().ToList();
 }
 
 Console.WriteLine($"\nAgent: {response}");

dotnet/samples/03-workflows/Agents/CustomAgentExecutors/Program.cs

@@ -61,6 +61,12 @@ public static class Program
             {
                 Console.WriteLine($"{outputEvent}");
             }
+
+            if (evt is WorkflowErrorEvent errorEvent)
+            {
+                Console.WriteLine($"Workflow error: {errorEvent.Exception?.Message}");
+                Console.WriteLine($"Details: {errorEvent.Exception}");
+            }
         }
     }
 }
@@ -175,7 +181,9 @@ internal sealed class FeedbackEvent(FeedbackResult feedbackResult) : WorkflowEve
 /// <summary>
 /// A custom executor that uses an AI agent to provide feedback on a slogan.
 /// </summary>
-internal sealed class FeedbackExecutor : Executor<SloganResult>
+[SendsMessage(typeof(FeedbackResult))]
+[YieldsOutput(typeof(string))]
+internal sealed partial class FeedbackExecutor : Executor<SloganResult>
 {
     private readonly AIAgent _agent;
     private AgentSession? _session;

dotnet/samples/03-workflows/Agents/FoundryAgent/FoundryAgent.csproj

@@ -9,13 +9,13 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.AI.Agents.Persistent" />
+    <PackageReference Include="Azure.AI.Projects" />
     <PackageReference Include="Azure.Identity" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.Workflows\Microsoft.Agents.AI.Workflows.csproj" />
-    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI.Persistent\Microsoft.Agents.AI.AzureAI.Persistent.csproj" />
+    <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI.AzureAI\Microsoft.Agents.AI.AzureAI.csproj" />
     <ProjectReference Include="..\..\..\..\src\Microsoft.Agents.AI\Microsoft.Agents.AI.csproj" />
   </ItemGroup>
 

dotnet/samples/03-workflows/Agents/FoundryAgent/Program.cs

@@ -1,6 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
-using Azure.AI.Agents.Persistent;
+using Azure.AI.Projects;
 using Azure.Identity;
 using Microsoft.Agents.AI;
 using Microsoft.Agents.AI.Workflows;
@@ -20,60 +20,63 @@ public static class Program
 {
     private static async Task Main()
     {
-        // Set up the Azure OpenAI client
+        // Set up the Azure AI Project client
         var endpoint = Environment.GetEnvironmentVariable("AZURE_AI_PROJECT_ENDPOINT")
             ?? throw new InvalidOperationException("AZURE_AI_PROJECT_ENDPOINT is not set.");
         var deploymentName = Environment.GetEnvironmentVariable("AZURE_AI_MODEL_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
-        var persistentAgentsClient = new PersistentAgentsClient(endpoint, new AzureCliCredential());
+        var aiProjectClient = new AIProjectClient(new Uri(endpoint), new AzureCliCredential());
 
         // Create agents
-        AIAgent frenchAgent = await GetTranslationAgentAsync("French", persistentAgentsClient, deploymentName);
-        AIAgent spanishAgent = await GetTranslationAgentAsync("Spanish", persistentAgentsClient, deploymentName);
-        AIAgent englishAgent = await GetTranslationAgentAsync("English", persistentAgentsClient, deploymentName);
+        AIAgent frenchAgent = await CreateTranslationAgentAsync("French", aiProjectClient, deploymentName);
+        AIAgent spanishAgent = await CreateTranslationAgentAsync("Spanish", aiProjectClient, deploymentName);
+        AIAgent englishAgent = await CreateTranslationAgentAsync("English", aiProjectClient, deploymentName);
 
-        // Build the workflow by adding executors and connecting them
-        var workflow = new WorkflowBuilder(frenchAgent)
-            .AddEdge(frenchAgent, spanishAgent)
-            .AddEdge(spanishAgent, englishAgent)
-            .Build();
-
-        // Execute the workflow
-        await using StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, new ChatMessage(ChatRole.User, "Hello World!"));
-        // Must send the turn token to trigger the agents.
-        // The agents are wrapped as executors. When they receive messages,
-        // they will cache the messages and only start processing when they receive a TurnToken.
-        await run.TrySendMessageAsync(new TurnToken(emitEvents: true));
-        await foreach (WorkflowEvent evt in run.WatchStreamAsync())
+        try
         {
-            if (evt is AgentResponseUpdateEvent executorComplete)
+            // Build the workflow by adding executors and connecting them
+            var workflow = new WorkflowBuilder(frenchAgent)
+                .AddEdge(frenchAgent, spanishAgent)
+                .AddEdge(spanishAgent, englishAgent)
+                .Build();
+
+            // Execute the workflow
+            await using StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, new ChatMessage(ChatRole.User, "Hello World!"));
+            // Must send the turn token to trigger the agents.
+            // The agents are wrapped as executors. When they receive messages,
+            // they will cache the messages and only start processing when they receive a TurnToken.
+            await run.TrySendMessageAsync(new TurnToken(emitEvents: true));
+            await foreach (WorkflowEvent evt in run.WatchStreamAsync())
             {
-                Console.WriteLine($"{executorComplete.ExecutorId}: {executorComplete.Data}");
+                if (evt is AgentResponseUpdateEvent executorComplete)
+                {
+                    Console.WriteLine($"{executorComplete.ExecutorId}: {executorComplete.Data}");
+                }
             }
         }
-
-        // Cleanup the agents created for the sample.
-        await persistentAgentsClient.Administration.DeleteAgentAsync(frenchAgent.Id);
-        await persistentAgentsClient.Administration.DeleteAgentAsync(spanishAgent.Id);
-        await persistentAgentsClient.Administration.DeleteAgentAsync(englishAgent.Id);
+        finally
+        {
+            // Cleanup the agents created for the sample.
+            await aiProjectClient.Agents.DeleteAgentAsync(frenchAgent.Name);
+            await aiProjectClient.Agents.DeleteAgentAsync(spanishAgent.Name);
+            await aiProjectClient.Agents.DeleteAgentAsync(englishAgent.Name);
+        }
     }
 
     /// <summary>
     /// Creates a translation agent for the specified target language.
     /// </summary>
     /// <param name="targetLanguage">The target language for translation</param>
-    /// <param name="persistentAgentsClient">The PersistentAgentsClient to create the agent</param>
+    /// <param name="aiProjectClient">The <see cref="AIProjectClient"/> to create the agent with.</param>
     /// <param name="model">The model to use for the agent</param>
     /// <returns>A ChatClientAgent configured for the specified language</returns>
-    private static async Task<ChatClientAgent> GetTranslationAgentAsync(
+    private static async Task<ChatClientAgent> CreateTranslationAgentAsync(
         string targetLanguage,
-        PersistentAgentsClient persistentAgentsClient,
+        AIProjectClient aiProjectClient,
         string model)
     {
-        var agentMetadata = await persistentAgentsClient.Administration.CreateAgentAsync(
-            model: model,
+        return await aiProjectClient.CreateAIAgentAsync(
             name: $"{targetLanguage} Translator",
+            model: model,
             instructions: $"You are a translation assistant that translates the provided text to {targetLanguage}.");
-
-        return await persistentAgentsClient.GetAIAgentAsync(agentMetadata.Value.Id);
     }
 }

dotnet/samples/03-workflows/Agents/GroupChatToolApproval/Program.cs

@@ -17,7 +17,7 @@
 //
 // Demonstrate:
 // - Using custom GroupChatManager with agents that have approval-required tools.
-// - Handling FunctionApprovalRequestContent in group chat scenarios.
+// - Handling ToolApprovalRequestContent in group chat scenarios.
 // - Multi-round group chat with tool approval interruption and resumption.
 
 using System.ComponentModel;
@@ -101,16 +101,16 @@ public static class Program
             {
                 case RequestInfoEvent e:
                 {
-                    if (e.Request.TryGetDataAs(out FunctionApprovalRequestContent? approvalRequestContent))
+                    if (e.Request.TryGetDataAs(out ToolApprovalRequestContent? approvalRequestContent))
                     {
                         Console.WriteLine();
                         Console.WriteLine($"[APPROVAL REQUIRED] From agent: {e.Request.PortInfo.PortId}");
-                        Console.WriteLine($"  Tool: {approvalRequestContent.FunctionCall.Name}");
-                        Console.WriteLine($"  Arguments: {JsonSerializer.Serialize(approvalRequestContent.FunctionCall.Arguments)}");
+                        Console.WriteLine($"  Tool: {((FunctionCallContent)approvalRequestContent.ToolCall).Name}");
+                        Console.WriteLine($"  Arguments: {JsonSerializer.Serialize(((FunctionCallContent)approvalRequestContent.ToolCall).Arguments)}");
                         Console.WriteLine();
 
                         // Approve the tool call request
-                        Console.WriteLine($"Tool: {approvalRequestContent.FunctionCall.Name} approved");
+                        Console.WriteLine($"Tool: {((FunctionCallContent)approvalRequestContent.ToolCall).Name} approved");
                         await run.SendResponseAsync(e.Request.CreateResponse(approvalRequestContent.CreateResponse(approved: true)));
                     }
 

dotnet/samples/03-workflows/Agents/WorkflowAsAnAgent/WorkflowFactory.cs

@@ -41,6 +41,7 @@ internal static class WorkflowFactory
     /// <summary>
     /// Executor that aggregates the results from the concurrent agents.
     /// </summary>
+    [YieldsOutput(typeof(string))]
     private sealed class ConcurrentAggregationExecutor() :
         Executor<List<ChatMessage>>("ConcurrentAggregationExecutor"), IResettableExecutor
     {

dotnet/samples/03-workflows/Checkpoint/CheckpointAndRehydrate/WorkflowFactory.cs

@@ -41,6 +41,7 @@ internal enum NumberSignal
 /// <summary>
 /// Executor that makes a guess based on the current bounds.
 /// </summary>
+[SendsMessage(typeof(int))]
 internal sealed class GuessNumberExecutor() : Executor<NumberSignal>("Guess")
 {
     /// <summary>
@@ -104,6 +105,8 @@ internal sealed class GuessNumberExecutor() : Executor<NumberSignal>("Guess")
 /// <summary>
 /// Executor that judges the guess and provides feedback.
 /// </summary>
+[SendsMessage(typeof(NumberSignal))]
+[YieldsOutput(typeof(string))]
 internal sealed class JudgeExecutor() : Executor<int>("Judge")
 {
     private readonly int _targetNumber;

dotnet/samples/03-workflows/Checkpoint/CheckpointAndResume/WorkflowFactory.cs

@@ -41,6 +41,7 @@ internal enum NumberSignal
 /// <summary>
 /// Executor that makes a guess based on the current bounds.
 /// </summary>
+[SendsMessage(typeof(int))]
 internal sealed class GuessNumberExecutor() : Executor<NumberSignal>("Guess")
 {
     /// <summary>
@@ -104,6 +105,8 @@ internal sealed class GuessNumberExecutor() : Executor<NumberSignal>("Guess")
 /// <summary>
 /// Executor that judges the guess and provides feedback.
 /// </summary>
+[SendsMessage(typeof(NumberSignal))]
+[YieldsOutput(typeof(string))]
 internal sealed class JudgeExecutor() : Executor<int>("Judge")
 {
     private readonly int _targetNumber;

dotnet/samples/03-workflows/Checkpoint/CheckpointWithHumanInTheLoop/WorkflowFactory.cs

@@ -53,6 +53,8 @@ internal sealed class SignalWithNumber
 /// <summary>
 /// Executor that judges the guess and provides feedback.
 /// </summary>
+[SendsMessage(typeof(SignalWithNumber))]
+[YieldsOutput(typeof(string))]
 internal sealed class JudgeExecutor() : Executor<int>("Judge")
 {
     private readonly int _targetNumber;