agent-framework

Giles Odigwe · 2026-01-23 23:40:20 +00:00

python-1.0.0b260123 330c2607ad

.NET: [BREAKING] feat: Improve Agent hosting inside Workflows (#3142 )

* refactor: Rename AggregateTurnMessagesExecutor

* feat: Rework Agent Hosting for Configurability and HIL support

* Adds support for selecting whether updates and/or full responses are
  emitted to events
* Adds support for HIL/FunctionCalls (including interception)
* Implements internal support for ExternalRequests from any executor
  (not just RequestPort)

* test: Add tests for new AIAgentHostExecutor functionality

* feat: Unify non-Handoff Agent Hosting

* doc: More explicit documentation for `overwrite` in RouteBuilder

Jacob Alber · 2026-01-23 19:45:29 +00:00

6e8c7c42c8

.NET: Rename ChatMessageStore to ChatHistoryProvider (#3375 )

* Rename ChatMessageStore to ChatHistoryProvider

* Fix merge issue

* Fixed PR comments

* Fix tests after property rename

* Add unit tests and fix merge issues

* Fix encoding

westey · 2026-01-23 15:49:01 +00:00

21e00c054b

Update instructions to require automatically building and formatting (#3412 )

westey · 2026-01-23 14:23:22 +00:00

9e57dc7dbe

.NET: Allow overriding the ChatMessageStore to be used per agent run. (#3330 )

* Allow overriding the ChatMessageStore to be used per agent run.

* Fix typos

* Fix Add and add TryAdd, Contains and Remove

westey · 2026-01-23 12:44:29 +00:00

90164a6bc1

Python: add(azure-ai): support reasoning config for AzureAIClient (#3403 )

* add(azure-ai): support reasoning config for AzureAIClient

* Update sample

* Merge main

* improvements

* improve sample

Evan Mattson · 2026-01-23 09:37:23 +00:00

7b8777d1fc

Python: Azure AI mapping HostedImageGenerationTool to ImageGenTool (#3263 )

* azureai image gen sample fix

* mypy fixes

* addressed comments + mapping updates

* image model fix

* content type fix

Giles Odigwe · 2026-01-23 06:11:16 +00:00

a97bc322ac

Python: Prefer runtime kwargs for conversation_id in OpenAI Responses client (#3312 )

* prefer kwargs conversation_id over options

* addressed comments

Giles Odigwe · 2026-01-23 06:05:00 +00:00

e8b32ca337

Python: Added tests for OpenAI content types + Unit test improvement (#3259 )

* added tests for content types+ unit test improvement

* small fixes

* small fix

Giles Odigwe · 2026-01-23 06:04:36 +00:00

e229dfa7e5

Python: fix(core): filter out internal args when passing kwargs to MCP tools (#3292 )

* fix(core): filter conversation_id when passing kwargs to MCP tools

* Filter out options too

* Fix uv.lock conflict

Evan Mattson · 2026-01-23 06:03:10 +00:00

50c2539f3a

Python: [BREAKING] simplify ag-ui run logic, fix mcp bugs, fix anthropic client issues in ag-ui (#3322 )

* Refactor ag-ui to simplify flow

* Refactoring

* Fix backend tool

* Update tests

* Improvements

* Fix mypy

* Fixes

* Fix json serialize errors

Evan Mattson · 2026-01-23 05:10:46 +00:00

5436354a83

Adding ReflectExecutors method to Workflow. (#3389 )

Shyju Krishnankutty · 2026-01-22 23:21:22 +00:00

9f893a32a6

Python: Fix azurefunctions MCP tool invocation to use correct agent (#3339 )

* MCP tool fix for azurefunctions

* Moving logic to check for thread id

Gavin Aguiar · 2026-01-22 22:36:44 +00:00

b072df32c5

Python: Fix: Verify types during checkpoint deserialization to prevent marker spoofing (#3243 )

* Initial plan

* Add validation for reserved keywords in checkpoint encoding/decoding

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Refactor to eliminate duplicate code in model protocol detection

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Fix pyright type narrowing issue for dataclass check

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Add comprehensive unit tests for checkpoint encoding

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Remove serialization-time reserved keyword validation to fix failing tests

The serialization-time validation was too aggressive and blocked legitimate use cases
where encoded data was being re-encoded. Security is now enforced only at deserialization
time by validating that classes marked with DATACLASS_MARKER are actual dataclasses and
classes marked with MODEL_MARKER actually support the model protocol.

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Apply ruff formatting to checkpoint encoding file

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Changes before error encountered

Co-authored-by: TaoChenOSU <12570346+TaoChenOSU@users.noreply.github.com>

* Revert "Changes before error encountered"

This reverts commit f515b880dc.

---------

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Copilot · 2026-01-22 19:07:39 +00:00

87c9d74bd7

.NET: Improve unit test coverage for Microsoft.Agents.AI.OpenAI (#3349 )

* Initial plan

* Add unit tests for Microsoft.Agents.AI.OpenAI to improve code coverage

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Address code review feedback: remove unused using directives

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Fix format issues: file encoding and remove unused using directives

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Fix redundant cast error by using named parameter

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

* Remove excessive inline comments per PR review feedback

---------

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Copilot · 2026-01-22 16:48:52 +00:00

958e6d27ce

.NET: Joslat fix sample issue (#3270 )

* adds support for labels in edges,  fixes rendering of labels in dot and mermaid, adds rendering of labels in edges

* Update dotnet/src/Microsoft.Agents.AI.Workflows/Visualization/WorkflowVisualizer.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* escaping edge labels, adding tests for labels containing strange characters that would break the diagram and enabling the previous signature so the API has backwards compatibility.

* Unify label in EdgeData

* Edge API adjustments, removed useless "sanitizer"

* fixed test

* Fix in Sample

* update

---------

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Co-authored-by: Jacob Alber <jaalber@microsoft.com>
Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>

Jose Luis Latorre Millas · 2026-01-22 16:23:17 +00:00

9a37411dc1

Python: .NET: Executor source gen for workflow executor routing (#3131 )

* Roslyn Source Generators for Workflow Executor Routing.

* Update dotnet/src/Microsoft.Agents.AI.Workflows.Generators/ExecutorRouteGenerator.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* WIP.

* All fixed up except dangling sends/yields attriutes, working on that next.

* Add protocol-only generation for SendsMessage/YieldsOutput attributes

* Ensuring collections that can change order are sorted to enable pipeline caching.

* Improvents per PR feedback.

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Ben Thomas · 2026-01-22 16:02:12 +00:00

ea7818d390

fix: Subworkflows do not work well with HostAsAgent (#3240 )

Subworkflows run into issues with Checkpointing and the Chat Protocol:

* The concurrency rework made subtle changes in behaviour that introduced a hang when using subworkflows with ChatProtocol and streaming execution.
* The ResetAsync() implementation in WorkflowHostExecutor was improperly resetting the joinContext - this was happening on restore checkpoint _after_ the join context was attached when
* Subworkflows cannot be used as the start node when hosted AsAgent due to inability to treat Catch-All as a Chat Protocol
* Subworkflow ownership issue when used in non-concurrent mode after finishing a run

Also fixes:
* When ChatMessages are output by executors that are not agents, there is no corresponding AgentResponseUpdate/AgentResponse event

Breaking Changes
* [BREAKING CHANGE] It is possible to provide the wrong RunId when resuming from CheckpointInfo (even though the data already exists on CheckpointInfo)

Jacob Alber · 2026-01-22 16:01:47 +00:00

4940d0ef36

.NET: [Breaking] Allow passing auth token credential to cosmosdb extensions (#3250 )

* allow passing token credentials to cosmosdb extensions

* Update dotnet/src/Microsoft.Agents.AI.CosmosNoSql/CosmosDBWorkflowExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update dotnet/src/Microsoft.Agents.AI.CosmosNoSql/CosmosDBWorkflowExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update dotnet/src/Microsoft.Agents.AI.CosmosNoSql/CosmosDBChatExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

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SergeyMenshykh · 2026-01-22 11:30:58 +00:00

f47645cdc8

Adding feature collections ADR (#3332 )

westey · 2026-01-22 09:17:32 +00:00

2cf4980d77

Set min version of dependent azure-ai-projects to 2.0.0b3 (#3347 )

Darren Cohen · 2026-01-22 12:56:25 +09:00

89285a5f1c

Updated package versions (#3335 )

Dmytro Struk · 2026-01-21 18:40:36 +00:00

dotnet-1.0.0-preview.260121.1 b4a71f00a3

Python: feat(anthropic): Add response_format support for structured outputs (#3301 )

* fix(anthropic): Add response_format support for structured outputs

* only use from options

* use native way of response format

* ruff lint fix

* address comment; handle dict

Sukeesh · 2026-01-21 15:08:13 +00:00

082f39e77e

.NET: Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties (#2985 )

* Initial plan

* Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

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Copilot · 2026-01-21 13:50:59 +00:00

6f1ab66795

Bump pyasn1 from 0.6.1 to 0.6.2 in /python (#3257 )

Bumps [pyasn1](https://github.com/pyasn1/pyasn1) from 0.6.1 to 0.6.2.
- [Release notes](https://github.com/pyasn1/pyasn1/releases)
- [Changelog](https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst)
- [Commits](https://github.com/pyasn1/pyasn1/compare/v0.6.1...v0.6.2)

---
updated-dependencies:
- dependency-name: pyasn1
  dependency-version: 0.6.2
  dependency-type: indirect
...

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dependabot[bot] · 2026-01-21 12:56:40 +00:00

d402d92a47

.NET: Improve readme for agents V2 (#3285 )

* Improve readme for agents V2

* Architectural justification

* Update dotnet/samples/GettingStarted/FoundryAgents/README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Roger Barreto · 2026-01-21 12:55:11 +00:00

d55dd5f253

Python: Fix local MCP tools with AzureAIProjectAgentProvider (#3315 )

* azureai v2 local mcp fix

* addressed copilot comments

Giles Odigwe · 2026-01-21 12:43:05 +00:00

88e0ee1a2c

.NET: Update Conversation Sample to use Conversation Id instead (#3180 )

* Update Conversation Sample to use conversation Id instead

* Remove Run infix

* Remove the sync GetAIAgent from sample

Roger Barreto · 2026-01-21 12:15:13 +00:00

aa6579f38c

.NET: Add sample to show multiple AIContextProvider usage (#3284 )

* Add sample to show multiple AIContextProvider usage

* Update comment.

* Update messaging in README.

* Address PR comments.

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Co-authored-by: Mark Wallace <127216156+markwallace-microsoft@users.noreply.github.com>

westey · 2026-01-21 11:42:16 +00:00

41cc34421f

.Net: Fix DebuggerDisplay attribute to reference existing property (#3326 )

* Initial plan

* Fix DebuggerDisplay attribute to use Name instead of DisplayName

Co-authored-by: rogerbarreto <19890735+rogerbarreto@users.noreply.github.com>

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Copilot · 2026-01-21 11:42:01 +00:00

eac8baac09

Bump tomli from 2.3.0 to 2.4.0 in /python (#3182 )

Bumps [tomli](https://github.com/hukkin/tomli) from 2.3.0 to 2.4.0.
- [Changelog](https://github.com/hukkin/tomli/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hukkin/tomli/compare/2.3.0...2.4.0)

---
updated-dependencies:
- dependency-name: tomli
  dependency-version: 2.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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dependabot[bot] · 2026-01-21 05:38:12 +00:00

77236bf0ec

Python: fix(ag-ui): properly handle json serialize with handoff workflows as agent (#3275 )

* fix(ag-ui): properly handle json serialize with handoff workflows as agent

* Other improvements around handling non-serializable objects

Evan Mattson · 2026-01-21 02:43:14 +00:00

6d7690e485

Python: fix(core): handle anyio cancel scope errors during MCP connection cleanup (#3277 )

* fix(core): handle anyio cancel scope errors during MCP connection cleanup

* Address Copilot feedback

Evan Mattson · 2026-01-21 01:49:07 +00:00

6b5437e4ec

.NET: Durable Agent samples and automated validation for non-Azure Functions (#3042 )

* Durable Agent samples and automated validation for non-Azure Functions

* Update test projects

* fix file encoding

* Remove AgentThreadMetadata usage

* Absorb breaking change from #3152

* Absorb newer breaking changes (AgentRunResponse --> AgentResponse)

* Absorb more breaking changes (see #3222)

* Improve integration test reliability (isolated task hubs, etc.)

* Fix flakey streaming test

---------

Co-authored-by: Mark Wallace <127216156+markwallace-microsoft@users.noreply.github.com>

Chris Gillum · 2026-01-20 22:45:10 +00:00

db8a59bd3d

Python: [Breaking] Simplified Content types to a single class with classmethod constructors. (#3252 )

* ported Content to a new model

* fixed linting

* fixes

* fixed data format handling

* fix for 3.10 mypy

* fix

* fix int test

Eduard van Valkenburg · 2026-01-20 22:09:39 +00:00

83e6229c11

.NET: Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool (#3219 )

* Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool

* Rename variable to improve readability.

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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westey · 2026-01-20 18:20:08 +00:00

73761aa4a3

.NET: Update Microsoft.Extensions.AI.* packages to 10.2.0 (#3211 )

* Initial plan

* Update Microsoft.Extensions.AI.* to 10.2.0 and fix timestamp behavior tests

Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>

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Copilot · 2026-01-20 17:52:58 +00:00

742937194a

Improve PR number handling in workflow (#3302 )

* Improve PR number handling in workflow

Refine PR number extraction and validation method.

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

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fix error message for invalid PR number

---------

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Mark Wallace · 2026-01-20 14:05:15 +00:00

74401266e6

Python: Fix: Add system_instructions to ChatClient LLM span tracing (#3164 )

* Fix: Add system_instructions to ChatClient LLM span tracing

- Add system_instructions parameter to _capture_messages() calls in
  _trace_get_response() and _trace_get_streaming_response()
- Extract instructions from chat_options in kwargs
- Add unit tests to verify system_instructions are captured correctly

When using ChatClient with ChatOptions.instructions, the OpenTelemetry
LLM span was missing system messages in gen_ai.input.messages and the
gen_ai.system_instructions attribute was not being set.

This fix aligns the ChatClient-level tracing with the Agent-level
tracing which already correctly passes system_instructions.

Fixes #3163

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Add edge case tests for system_instructions

- Add test for empty string instructions (should not set attribute)
- Add test for list-type instructions (verify multiple items captured)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Simplify: use options.get('instructions') directly instead of kwargs.get('chat_options')

Addresses reviewer feedback:
- Removed unnecessary chat_options variable from kwargs
- Directly access instructions from the options parameter
- Updated tests to use dict syntax for options (TypedDict convention)

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

claude89757 · 2026-01-20 14:04:31 +00:00

f8c84d4ee6

.NET: Delete sync extension methods for agent (#3291 )

* Delete sync extension methods for agent

* Fix comments and obsolete attribute

* Remove more sync methods.

* Fix naming and comments.

* Fix unit tests

westey · 2026-01-20 11:24:58 +00:00

3ec881509c

Bump tar from 7.4.3 to 7.5.3 in /python/packages/devui/frontend (#3267 )

Bumps [tar](https://github.com/isaacs/node-tar) from 7.4.3 to 7.5.3.
- [Release notes](https://github.com/isaacs/node-tar/releases)
- [Changelog](https://github.com/isaacs/node-tar/blob/main/CHANGELOG.md)
- [Commits](https://github.com/isaacs/node-tar/compare/v7.4.3...v7.5.3)

---
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- dependency-name: tar
  dependency-version: 7.5.3
  dependency-type: indirect
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dependabot[bot] · 2026-01-20 07:26:34 +00:00

8ee379d344

Bump ruff from 0.14.11 to 0.14.13 in /python (#3287 )

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.14.11 to 0.14.13.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](https://github.com/astral-sh/ruff/compare/0.14.11...0.14.13)

---
updated-dependencies:
- dependency-name: ruff
  dependency-version: 0.14.13
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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dependabot[bot] · 2026-01-20 07:26:06 +00:00

2a43caefaa

Bump uv from 0.9.25 to 0.9.26 in /python (#3288 )

Bumps [uv](https://github.com/astral-sh/uv) from 0.9.25 to 0.9.26.
- [Release notes](https://github.com/astral-sh/uv/releases)
- [Changelog](https://github.com/astral-sh/uv/blob/main/CHANGELOG.md)
- [Commits](https://github.com/astral-sh/uv/compare/0.9.25...0.9.26)

---
updated-dependencies:
- dependency-name: uv
  dependency-version: 0.9.26
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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dependabot[bot] · 2026-01-20 07:25:45 +00:00

f54248b79f

fix #3171 , ensure proper form rendering for int (#3201 )

Victor Dibia · 2026-01-20 07:25:12 +00:00

0f29637b86

Python: fix(declarative): Fix MCP tool connection not passed from YAML to Azure AI agent creation API (#3248 )

* fix(declarative): Fix MCP tool connection not passed from YAML

* Add samples to README

* Fix mypy

* Fix mypy again

* Address PR comments

Evan Mattson · 2026-01-20 07:24:20 +00:00

e0b9be7e08

Python: [BREAKING] Make response_format validation errors visible to users (#3274 )

* Make response_format validation errors visible to users

* Small fix

* Addressed comments

Dmytro Struk · 2026-01-19 17:20:46 +00:00

83e8965c8e

Update ignored checks in merge-gatekeeper workflow

Mark Wallace · 2026-01-19 16:17:24 +00:00

3c1be2a713

Bump actions/setup-dotnet from 5.0.1 to 5.1.0 (#3273 )

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 5.0.1 to 5.1.0.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](https://github.com/actions/setup-dotnet/compare/v5.0.1...v5.1.0)

---
updated-dependencies:
- dependency-name: actions/setup-dotnet
  dependency-version: 5.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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dependabot[bot] · 2026-01-19 15:58:02 +00:00

467d3a60ed

Python: Filter conversation_id when passing kwargs to agent as tool (#3266 )

* Filter conversation_id when passing kwargs to agent as tool

* Small fix

* Update python/samples/getting_started/agents/azure_ai/README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update python/samples/getting_started/agents/openai/openai_responses_client_with_agent_as_tool.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update python/samples/getting_started/agents/azure_ai/azure_ai_with_agent_as_tool.py

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Dmytro Struk · 2026-01-19 12:54:06 +00:00

3243652df6

Python: Added rai_config to Azure AI agent creation (#3265 )

* Add kwargs to create_agent method

* Added test for kwargs

* Addressed comment

* Added doc string

Dmytro Struk · 2026-01-19 12:51:27 +00:00

915df3b404

1283 Commits