Commit Graph

729 Commits

  • feat: new op type for sub-agents communication (#15556)
    Add `InterAgentCommunication` for v2 agent communication
  • feat: structured multi-agent output (#15515)
    Send input now sends messages as assistant message and with this format:
    
    ```
    author: /root/worker_a
    recipient: /root/worker_a/tester
    other_recipients: []
    Content: bla bla bla. Actual content. Only text for now
    ```
  • tui: queue follow-ups during manual /compact (#15259)
    ## Summary
    - queue input after the user submits `/compact` until that manual
    compact turn ends
    - mirror the same behavior in the app-server TUI
    - add regressions for input queued before compact starts and while it is
    running
    
    Co-authored-by: Codex <noreply@openai.com>
  • chore(context) Include guardian approval context (#15366)
    ## Summary
    Include the guardian context in the developer message for approvals
    
    ## Testing
    - [x] Updated unit tests
  • [plugins] Fix plugin explicit mention context management. (#15372)
    - [x] Fix plugin explicit mention context management.
  • Split features into codex-features crate (#15253)
    - Split the feature system into a new `codex-features` crate.
    - Cut `codex-core` and workspace consumers over to the new config and
    warning APIs.
    
    Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
    Co-authored-by: Codex <noreply@openai.com>
  • Plumb MCP turn metadata through _meta (#15190)
    ## Summary
    
    Some background. We're looking to instrument GA turns end to end. Right
    now a big gap is grouping mcp tool calls with their codex sessions. We
    send session id and turn id headers to the responses call but not the
    mcp/wham calls.
    
    Ideally we could pass the args as headers like with responses, but given
    the setup of the rmcp client, we can't send as headers without either
    changing the rmcp package upstream to allow per request headers or
    introducing a mutex which break concurrency. An earlier attempt made the
    assumption that we had 1 client per thread, which allowed us to set
    headers at the start of a turn. @pakrym mentioned that this assumption
    might break in the near future.
    
    So the solution now is to package the turn metadata/session id into the
    _meta field in the post body and pull out in codex-backend.
    
    - send turn metadata to MCP servers via `tools/call` `_meta` instead of
    assuming per-thread request headers on shared clients
    - preserve the existing `_codex_apps` metadata while adding
    `x-codex-turn-metadata` for all MCP tool calls
    - extend tests to cover both custom MCP servers and the codex apps
    search flow
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Move terminal module to terminal-detection crate (#15216)
    - Move core/src/terminal.rs and its tests into a standalone
    terminal-detection workspace crate.
    - Update direct consumers to depend on codex-terminal-detection and
    import terminal APIs directly.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Add experimental exec server URL handling (#15196)
    Add a config and attempt to start the server.
  • [hooks] use a user message > developer message for prompt continuation (#14867)
    ## Summary
    
    Persist Stop-hook continuation prompts as `user` messages instead of
    hidden `developer` messages + some requested integration tests
    
    This is a followup to @pakrym 's comment in
    https://github.com/openai/codex/pull/14532 to make sure stop-block
    continuation prompts match training for turn loops
    
    - Stop continuation now writes `<hook_prompt hook_run_id="...">stop
    hook's user prompt<hook_prompt>`
    - Introduces quick-xml dependency, though we already indirectly depended
    on it anyway via syntect
    - This PR only has about 500 lines of actual logic changes, the rest is
    tests/schema
    
    ## Testing
    
    Example run (with a sessionstart hook and 3 stop hooks) - this shows
    context added by session start, then two stop hooks sending their own
    additional prompts in a new turn. The model responds with a single
    message addressing both. Then when that turn ends, the hooks detect that
    they just ran using `stop_hook_active` and decide not to infinite loop
    
    test files for this (unzip, move codex -> .codex):
    [codex.zip](https://github.com/user-attachments/files/26075806/codex.zip)
    
    ```
    › cats
    
    
    • Running SessionStart hook: lighting the observatory
    
    SessionStart hook (completed)
      warning: Hi, I'm a session start hook for wizard-tower (startup).
      hook context: A wimboltine stonpet is an exotic cuisine from hyperspace
    
    • Cats are tiny zen wizards, my friend: equal parts nap, mystery, and chaos. If you want, we can talk
      cat facts, cat breeds, cat names, or build something cat-themed in this repo.
    
    • Running Stop hook: checking the tower wards
    
    • Running Stop hook: sacking the guards
    
    • Running Stop hook: hiring the guards
    
    Stop hook (completed)
      warning: Wizard Tower Stop hook reviewed the completed reply (177 chars).
    
    Stop hook (blocked)
      warning: Wizard Tower Stop hook continuing conversation
      feedback: cook the stonpet
    
    Stop hook (blocked)
      warning: Wizard Tower Stop hook continuing conversation
      feedback: eat the cooked stonpet
    
    • Stonpet’s cooked, aloha style: flash-seared over a blue quasiflame, glazed with nebula salt, and
      rested until the hyperspace juices settle.
    
      Now we eat with gratitude, my friend. One mindful bite in, and the flavor is pure cosmic surf:
      smoky, bright, and totally out of this dimension.
    
    • Running Stop hook: checking the tower wards
    
    • Running Stop hook: sacking the guards
    
    • Running Stop hook: hiring the guards
    
    Stop hook (completed)
      warning: Wizard Tower Stop hook reviewed the completed reply (285 chars).
    
    Stop hook (completed)
      warning: Wizard Tower Stop hook saw a second pass and stayed calm to avoid a loop.
    
    Stop hook (completed)
      warning: Wizard Tower Stop hook saw a second pass and stayed calm to avoid a loop.
    ```
  • Move environment abstraction into exec server (#15125)
    The idea is that codex-exec exposes an Environment struct with services
    on it. Each of those is a trait.
    
    Depending on construction parameters passed to Environment they are
    either backed by local or remote server but core doesn't see these
    differences.
  • Forward session and turn headers to MCP HTTP requests (#15011)
    ## Summary
    - forward request-scoped task headers through MCP tool metadata lookups
    and tool calls
    - apply those headers to streamable HTTP initialize, tools/list, and
    tools/call requests
    - update affected rmcp/core tests for the new request_headers plumbing
    
    ## Testing
    - cargo test -p codex-rmcp-client
    - cargo test -p codex-core (fails on pre-existing unrelated error in
    core/src/auth_env_telemetry.rs: missing websocket_connect_timeout_ms in
    ModelProviderInfo initializer)
    - just fix -p codex-rmcp-client
    - just fix -p codex-core (hits the same unrelated auth_env_telemetry.rs
    error)
    - just fmt
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • fix: harden plugin feature gating (#15104)
    Resubmit https://github.com/openai/codex/pull/15020 with correct
    content.
    
    1. Use requirement-resolved config.features as the plugin gate.
    2. Guard plugin/list, plugin/read, and related flows behind that gate.
    3. Skip bad marketplace.json files instead of failing the whole list.
    4. Simplify plugin state and caching.
  • Revert "fix: harden plugin feature gating" (#15102)
    Reverts openai/codex#15020
    
    I messed up the commit in my PR and accidentally merged changes that
    were still under review.
  • fix: harden plugin feature gating (#15020)
    1. Use requirement-resolved config.features as the plugin gate.
    2. Guard plugin/list, plugin/read, and related flows behind that gate.
    3. Skip bad marketplace.json files instead of failing the whole list.
    4. Simplify plugin state and caching.
  • fix(subagents) share execpolicy by default (#13702)
    ## Summary
    If a subagent requests approval, and the user persists that approval to
    the execpolicy, it should (by default) propagate. We'll need to rethink
    this a bit in light of coming Permissions changes, though I think this
    is closer to the end state that we'd want, which is that execpolicy
    changes to one permissions profile should be synced across threads.
    
    ## Testing
    - [x] Added integration test
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [hooks] userpromptsubmit - hook before user's prompt is executed (#14626)
    - this allows blocking the user's prompts from executing, and also
    prevents them from entering history
    - handles the edge case where you can both prevent the user's prompt AND
    add n amount of additionalContexts
    - refactors some old code into common.rs where hooks overlap
    functionality
    - refactors additionalContext being previously added to user messages,
    instead we use developer messages for them
    - handles queued messages correctly
    
    Sample hook for testing - if you write "[block-user-submit]" this hook
    will stop the thread:
    
    example run
    ```
    › sup
    
    
    • Running UserPromptSubmit hook: reading the observatory notes
    
    UserPromptSubmit hook (completed)
      warning: wizard-tower UserPromptSubmit demo inspected: sup
      hook context: Wizard Tower UserPromptSubmit demo fired. For this reply only, include the exact
    phrase 'observatory lanterns lit' exactly once near the end.
    
    • Just riding the cosmic wave and ready to help, my friend. What are we building today? observatory
      lanterns lit
    
    
    › and [block-user-submit]
    
    
    • Running UserPromptSubmit hook: reading the observatory notes
    
    UserPromptSubmit hook (stopped)
      warning: wizard-tower UserPromptSubmit demo blocked the prompt on purpose.
      stop: Wizard Tower demo block: remove [block-user-submit] to continue.
    ```
    
    .codex/config.toml
    ```
    [features]
    codex_hooks = true
    ```
    
    .codex/hooks.json
    ```
    {
      "hooks": {
        "UserPromptSubmit": [
          {
            "hooks": [
              {
                "type": "command",
                "command": "/usr/bin/python3 .codex/hooks/user_prompt_submit_demo.py",
                "timeoutSec": 10,
                "statusMessage": "reading the observatory notes"
              }
            ]
          }
        ]
      }
    }
    ```
    
    .codex/hooks/user_prompt_submit_demo.py
    ```
    #!/usr/bin/env python3
    
    import json
    import sys
    from pathlib import Path
    
    
    def prompt_from_payload(payload: dict) -> str:
        prompt = payload.get("prompt")
        if isinstance(prompt, str) and prompt.strip():
            return prompt.strip()
    
        event = payload.get("event")
        if isinstance(event, dict):
            user_prompt = event.get("user_prompt")
            if isinstance(user_prompt, str):
                return user_prompt.strip()
    
        return ""
    
    
    def main() -> int:
        payload = json.load(sys.stdin)
        prompt = prompt_from_payload(payload)
        cwd = Path(payload.get("cwd", ".")).name or "wizard-tower"
    
        if "[block-user-submit]" in prompt:
            print(
                json.dumps(
                    {
                        "systemMessage": (
                            f"{cwd} UserPromptSubmit demo blocked the prompt on purpose."
                        ),
                        "decision": "block",
                        "reason": (
                            "Wizard Tower demo block: remove [block-user-submit] to continue."
                        ),
                    }
                )
            )
            return 0
    
        prompt_preview = prompt or "(empty prompt)"
        if len(prompt_preview) > 80:
            prompt_preview = f"{prompt_preview[:77]}..."
    
        print(
            json.dumps(
                {
                    "systemMessage": (
                        f"{cwd} UserPromptSubmit demo inspected: {prompt_preview}"
                    ),
                    "hookSpecificOutput": {
                        "hookEventName": "UserPromptSubmit",
                        "additionalContext": (
                            "Wizard Tower UserPromptSubmit demo fired. "
                            "For this reply only, include the exact phrase "
                            "'observatory lanterns lit' exactly once near the end."
                        ),
                    },
                }
            )
        )
        return 0
    
    
    if __name__ == "__main__":
        raise SystemExit(main())
    ```
  • Prefer websockets when providers support them (#13592)
    Remove all flags and model settings.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Add FS abstraction and use in view_image (#14960)
    Adds an environment crate and environment + file system abstraction.
    
    Environment is a combination of attributes and services specific to
    environment the agent is connected to:
    File system, process management, OS, default shell.
    
    The goal is to move most of agent logic that assumes environment to work
    through the environment abstraction.
  • Cleanup skills/remote/xxx endpoints. (#14977)
    Remote skills/remote/xxx as they are not in used for now.
  • Add auth env observability (#14905)
    CXC-410 Emit Env Var Status with `/feedback` report
    
    Add more observability on top of #14611 
    
    [Unset](https://openai.sentry.io/issues/7340419168/?project=4510195390611458&query=019cfa8d-c1ba-7002-96fa-e35fc340551d&referrer=issue-stream)
    
    [Set](https://openai.sentry.io/issues/7340426331/?project=4510195390611458&query=019cfa91-aba1-7823-ab7e-762edfbc0ed4&referrer=issue-stream)
    <img width="1063" height="610" alt="image"
    src="https://github.com/user-attachments/assets/937ab026-1c2d-4757-81d5-5f31b853113e"
    />
    
    
    ###### Summary
    - Adds auth-env telemetry that records whether key auth-related env
    overrides were present on session start and request paths.
    - Threads those auth-env fields through `/responses`, websocket, and
    `/models` telemetry and feedback metadata.
    - Buckets custom provider `env_key` configuration to a safe
    `"configured"` value instead of emitting raw config text.
    - Keeps the slice observability-only: no raw token values or raw URLs
    are emitted.
    
    ###### Rationale (from spec findings)
    - 401 and auth-path debugging needs a way to distinguish env-driven auth
    paths from sessions with no auth env override.
    - Startup and model-refresh failures need the same auth-env diagnostics
    as normal request failures.
    - Feedback and Sentry tags need the same auth-env signal as OTel events
    so reports can be triaged consistently.
    - Custom provider config is user-controlled text, so the telemetry
    contract must stay presence-only / bucketed.
    
    ###### Scope
    - Adds a small `AuthEnvTelemetry` bundle for env presence collection and
    threads it through the main request/session telemetry paths.
    - Does not add endpoint/base-url/provider-header/geo routing attribution
    or broader telemetry API redesign.
    
    ###### Trade-offs
    - `provider_env_key_name` is bucketed to `"configured"` instead of
    preserving the literal configured env var name.
    - `/models` is included because startup/model-refresh auth failures need
    the same diagnostics, but broader parity work remains out of scope.
    - This slice keeps the existing telemetry APIs and layers auth-env
    fields onto them rather than redesigning the metadata model.
    
    ###### Client follow-up
    - Add the separate endpoint/base-url attribution slice if routing-source
    diagnosis is still needed.
    - Add provider-header or residency attribution only if auth-env presence
    proves insufficient in real reports.
    - Revisit whether any additional auth-related env inputs need safe
    bucketing after more 401 triage data.
    
    ###### Testing
    - `cargo test -p codex-core emit_feedback_request_tags -- --nocapture`
    - `cargo test -p codex-core
    collect_auth_env_telemetry_buckets_provider_env_key_name -- --nocapture`
    - `cargo test -p codex-core
    models_request_telemetry_emits_auth_env_feedback_tags_on_failure --
    --nocapture`
    - `cargo test -p codex-otel
    otel_export_routing_policy_routes_api_request_auth_observability --
    --nocapture`
    - `cargo test -p codex-otel
    otel_export_routing_policy_routes_websocket_connect_auth_observability
    -- --nocapture`
    - `cargo test -p codex-otel
    otel_export_routing_policy_routes_websocket_request_transport_observability
    -- --nocapture`
    - `cargo test -p codex-core --no-run --message-format short`
    - `cargo test -p codex-otel --no-run --message-format short`
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Stabilize Windows cmd-based shell test harnesses (#14958)
    ## What is flaky
    The Windows shell-driven integration tests in `codex-rs/core` were
    intermittently unstable, especially:
    
    - `apply_patch_cli_can_use_shell_command_output_as_patch_input`
    - `websocket_test_codex_shell_chain`
    - `websocket_v2_test_codex_shell_chain`
    
    ## Why it was flaky
    These tests were exercising real shell-tool flows through whichever
    shell Codex selected on Windows, and the `apply_patch` test also nested
    a PowerShell read inside `cmd /c`.
    
    There were multiple independent sources of nondeterminism in that setup:
    
    - The test harness depended on the model-selected Windows shell instead
    of pinning the shell it actually meant to exercise.
    - `cmd.exe /c powershell.exe -Command "..."` is quoting-sensitive; on CI
    that could leave the read command wrapped as a literal string instead of
    executing it.
    - Even after getting the quoting right, PowerShell could emit CLIXML
    progress records like module-initialization output onto stdout.
    - The `apply_patch` test was building a patch directly from shell
    stdout, so any quoting artifact or progress noise corrupted the patch
    input.
    
    So the failures were driven by shell startup and output-shape variance,
    not by the `apply_patch` or websocket logic themselves.
    
    ## How this PR fixes it
    - Add a test-only `user_shell_override` path so Windows integration
    tests can pin `cmd.exe` explicitly.
    - Use that override in the websocket shell-chain tests and in the
    `apply_patch` harness.
    - Change the nested Windows file read in
    `apply_patch_cli_can_use_shell_command_output_as_patch_input` to a UTF-8
    PowerShell `-EncodedCommand` script.
    - Run that nested PowerShell process with `-NonInteractive`, set
    `$ProgressPreference = 'SilentlyContinue'`, and read the file with
    `[System.IO.File]::ReadAllText(...)`.
    
    ## Why this fix fixes the flakiness
    The outer harness now runs under a deterministic shell, and the inner
    PowerShell read no longer depends on fragile `cmd` quoting or on
    progress output staying quiet by accident. The shell tool returns only
    the file contents, so patch construction and websocket assertions depend
    on stable test inputs instead of on runner-specific shell behavior.
    
    ---------
    
    Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
    Co-authored-by: Codex <noreply@openai.com>
  • [plugins] Support plugin installation elicitation. (#14896)
    It now supports:
    
    - Connectors that are from installed and enabled plugins that are not
    installed yet
    - Plugins that are on the allowlist that are not installed yet.
  • fix(core): prevent hanging turn/start due to websocket warming issues (#14838)
    ## Description
    
    This PR fixes a bad first-turn failure mode in app-server when the
    startup websocket prewarm hangs. Before this change, `initialize ->
    thread/start -> turn/start` could sit behind the prewarm for up to five
    minutes, so the client would not see `turn/started`, and even
    `turn/interrupt` would block because the turn had not actually started
    yet.
    
    Now, we:
    - set a (configurable) timeout of 15s for websocket startup time,
    exposed as `websocket_startup_timeout_ms` in config.toml
    - `turn/started` is sent immediately on `turn/start` even if the
    websocket is still connecting
    - `turn/interrupt` can be used to cancel a turn that is still waiting on
    the websocket warmup
    - the turn task will wait for the full 15s websocket warming timeout
    before falling back
    
    ## Why
    
    The old behavior made app-server feel stuck at exactly the moment the
    client expects turn lifecycle events to start flowing. That was
    especially painful for external clients, because from their point of
    view the server had accepted the request but then went silent for
    minutes.
    
    ## Configuring the websocket startup timeout
    Can set it in config.toml like this:
    ```
    [model_providers.openai]
    supports_websockets = true
    websocket_connect_timeout_ms = 15000
    ```
  • [stack 2/4] Align main realtime v2 wire and runtime flow (#14830)
    ## Stack Position
    2/4. Built on top of #14828.
    
    ## Base
    - #14828
    
    ## Unblocks
    - #14829
    - #14827
    
    ## Scope
    - Port the realtime v2 wire parsing, session, app-server, and
    conversation runtime behavior onto the split websocket-method base.
    - Branch runtime behavior directly on the current realtime session kind
    instead of parser-derived flow flags.
    - Keep regression coverage in the existing e2e suites.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Apply argument comment lint across codex-rs (#14652)
    ## Why
    
    Once the repo-local lint exists, `codex-rs` needs to follow the
    checked-in convention and CI needs to keep it from drifting. This commit
    applies the fallback `/*param*/` style consistently across existing
    positional literal call sites without changing those APIs.
    
    The longer-term preference is still to avoid APIs that require comments
    by choosing clearer parameter types and call shapes. This PR is
    intentionally the mechanical follow-through for the places where the
    existing signatures stay in place.
    
    After rebasing onto newer `main`, the rollout also had to cover newly
    introduced `tui_app_server` call sites. That made it clear the first cut
    of the CI job was too expensive for the common path: it was spending
    almost as much time installing `cargo-dylint` and re-testing the lint
    crate as a representative test job spends running product tests. The CI
    update keeps the full workspace enforcement but trims that extra
    overhead from ordinary `codex-rs` PRs.
    
    ## What changed
    
    - keep a dedicated `argument_comment_lint` job in `rust-ci`
    - mechanically annotate remaining opaque positional literals across
    `codex-rs` with exact `/*param*/` comments, including the rebased
    `tui_app_server` call sites that now fall under the lint
    - keep the checked-in style aligned with the lint policy by using
    `/*param*/` and leaving string and char literals uncommented
    - cache `cargo-dylint`, `dylint-link`, and the relevant Cargo
    registry/git metadata in the lint job
    - split changed-path detection so the lint crate's own `cargo test` step
    runs only when `tools/argument-comment-lint/*` or `rust-ci.yml` changes
    - continue to run the repo wrapper over the `codex-rs` workspace, so
    product-code enforcement is unchanged
    
    Most of the code changes in this commit are intentionally mechanical
    comment rewrites or insertions driven by the lint itself.
    
    ## Verification
    
    - `./tools/argument-comment-lint/run.sh --workspace`
    - `cargo test -p codex-tui-app-server -p codex-tui`
    - parsed `.github/workflows/rust-ci.yml` locally with PyYAML
    
    ---
    
    * -> #14652
    * #14651
  • feat: improve skills cache key to take into account config layering (#14806)
    Fix https://github.com/openai/codex/issues/14161
    
    This fixes sub-agent [[skills.config]] overrides being ignored when
    parent and child share the same cwd. The root cause was that turn skill
    loading rebuilt from cwd-only state and reused a cwd-scoped cache, so
    role-local skill enable/disable overrides did not reliably affect the
    spawned agent's effective skill set.
    
    This change switches turn construction to use the effective per-turn
    config and adds a config-aware skills cache keyed by skill roots plus
    final disabled paths.
  • Reuse guardian session across approvals (#14668)
    ## Summary
    - reuse a guardian subagent session across approvals so reviews keep a
    stable prompt cache key and avoid one-shot startup overhead
    - clear the guardian child history before each review so prior guardian
    decisions do not leak into later approvals
    - include the `smart_approvals` -> `guardian_approval` feature flag
    rename in the same PR to minimize release latency on a very tight
    timeline
    - add regression coverage for prompt-cache-key reuse without
    prior-review prompt bleed
    
    ## Request
    - Bug/enhancement request: internal guardian prompt-cache and latency
    improvement request
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [apps] Improve search tool fallback. (#14732)
    - [x] Bypass tool search and stuff tool specs directly into model
    context when either a. Tool search is not available for the model or b.
    There are not that many tools to search for.
  • [apps] Add tool call meta. (#14647)
    - [x] Add resource_uri and other things to _meta to shortcut resource
    lookup and speed things up.
  • dynamic tool calls: add param exposeToContext to optionally hide tool (#14501)
    This extends dynamic_tool_calls to allow us to hide a tool from the
    model context but still use it as part of the general tool calling
    runtime (for ex from js_repl/code_mode)
  • move plugin/skill instructions into dev msg and reorder (#14609)
    Move the general `Apps`, `Skills` and `Plugins` instructions blocks out
    of `user_instructions` and into the developer message, with new `Apps ->
    Skills -> Plugins` order for better clarity.
    
    Also wrap those sections in stable XML-style instruction tags (like
    other sections) and update prompt-layout tests/snapshots. This makes the
    tests less brittle in snapshot output (we can parse the sections), and
    it consolidates the capability instructions in one place.
    
    #### Tests
    Updated snapshots, added tests.
    
    `<AGENTS_MD>` disappearing in snapshots is expected: before this change,
    the wrapped user-instructions message was kept alive by `Skills`
    content. Now that `Skills` and `Plugins` are in the developer message,
    that wrapper only appears when there is real
    project-doc/user-instructions content.
    
    ---------
    
    Co-authored-by: Charley Cunningham <ccunningham@openai.com>
  • fix: persist future network host approvals across sessions (#14619)
    ## Summary
    - apply persisted execpolicy network rules when booting the managed
    network proxy
    - pass the current execpolicy into managed proxy startup so host
    approvals selected with "allow this host in the future" survive new
    sessions
  • Fix turn context reconstruction after backtracking (#14616)
    ## Summary
    - reuse rollout reconstruction when applying a backtrack rollback so
    `reference_context_item` is restored from persisted rollout state
    - build rollback replay from the flushed rollout items plus the rollback
    marker, avoiding the extra reread/fallback path
    - add regression coverage for rollback after compaction so turn-context
    diffing stays aligned after backtracking
    
    Co-authored-by: Codex <noreply@openai.com>
  • refactor: make unified-exec zsh-fork state explicit (#14633)
    ## Why
    
    The unified-exec path was carrying zsh-fork state in a partially
    flattened way.
    
    First, the decision about whether zsh-fork was active came from feature
    selection in `ToolsConfig`, while the real prerequisites lived in
    session state. That left the handler and runtime defending against
    partially configured cases later.
    
    Second, once zsh-fork was active, its two runtime-only paths were
    threaded through the runtime as separate arguments even though they form
    one coherent piece of configuration.
    
    This change keeps unified-exec on a single session-derived source of
    truth and bundles the zsh-fork-specific paths into a named config type
    so the runtime can pass them around as one unit.
    
    In particular, this PR introduces this enum so the `ZshFork` variant can
    carry the appropriate state with it:
    
    ```rust
    #[derive(Debug, Clone, Eq, PartialEq)]
    pub enum UnifiedExecShellMode {
        Direct,
        ZshFork(ZshForkConfig),
    }
    
    #[derive(Debug, Clone, Eq, PartialEq)]
    pub struct ZshForkConfig {
        pub(crate) shell_zsh_path: AbsolutePathBuf,
        pub(crate) main_execve_wrapper_exe: AbsolutePathBuf,
    }
    ```
    
    This cleanup was done in preparation for
    https://github.com/openai/codex/pull/13432.
    
    ## What Changed
    
    - Replaced the feature-only `UnifiedExecBackendConfig` split with
    `UnifiedExecShellMode` in `codex-rs/core/src/tools/spec.rs`.
    - Derived the unified-exec mode from session-backed inputs when building
    turn `ToolsConfig`, and preserved that mode across model switches and
    review turns.
    - Introduced `ZshForkConfig`, which stores the resolved zsh-fork
    `AbsolutePathBuf` values for the configured `zsh` binary and `execve`
    wrapper.
    - Threaded `ZshForkConfig` through unified-exec command construction and
    the zsh-fork preparation path so zsh-fork-specific runtime code consumes
    a single config object instead of separate path arguments.
    - Added focused tests for constructing zsh-fork mode only when session
    prerequisites are available, and updated the zsh-fork expectations to be
    target-platform aware.
    
    ## Testing
    
    - `cargo test -p codex-core zsh_fork --lib`
    
    
    ---
    [//]: # (BEGIN SAPLING FOOTER)
    Stack created with [Sapling](https://sapling-scm.com). Best reviewed
    with [ReviewStack](https://reviewstack.dev/openai/codex/pull/14633).
    * #13432
    * __->__ #14633
  • [hooks] stop continuation & stop_hook_active mechanics (#14532)
    Stop hooks now receive `stop_hook_active` and enable stop hooks to loop
    forever if they'd like to. In the initial hooks PR, we implemented a
    simpler mechanic that the stop-blocking could only happen once in a row
    
    - support stop hook adding a continuation prompt to add a further task
    - if multiple stop-blocks happen that have continuation prompts, they
    are concatenated
    
    example run:
    ```
    › hey :)
    
    
    • Running SessionStart hook: lighting the observatory
    
    SessionStart hook (completed)
      warning: Hi, I'm a session start hook for wizard-tower (startup).
      hook context: Startup context: A wimboltine stonpet is an exotic cuisine from hyperspace
    
    • Aloha :) Happy to jam with you. What are we building today?
    
    • Running Stop hook: updating the guards
    
    Stop hook (blocked)
      warning: Wizard Tower Stop hook continuing conversation
      feedback: cook the stonpet
    
    • Aloha, here’s the hyperspace move for cooking a wimboltine stonpet:
    
      1. Sear the stonpet in a hot pan with moon-oil until the edges shimmer.
      2. Add star-lime, black salt, and a little fermented nebula paste.
      3. Lower the heat and let it braise for 8 cosmic minutes with a splash of comet broth.
      4. Finish with sky herbs and serve over warm asteroid rice.
    
      The vibe: crispy outside, tender center, deep interdimensional savor.
    
    • Running Stop hook: updating the guards
    
    Stop hook (completed)
      warning: Wizard Tower Stop hook saw a second pass and stayed calm to avoid a loop.
    ```
    
    .codex/config.toml
    ```
    [features]
    codex_hooks = true
    ```
    
    .codex/hooks.json
    ```
    {
      "hooks": {
        "SessionStart": [
          {
            "matcher": "startup|resume",
            "hooks": [
              {
                "type": "command",
                "command": "/usr/bin/python3 .codex/hooks/session_start_demo.py",
                "timeoutSec": 10,
                "statusMessage": "lighting the observatory"
              }
            ]
          }
        ],
        "Stop": [
          {
            "hooks": [
              {
                "type": "command",
                "command": "/usr/bin/python3 .codex/hooks/stop_demo_block.py",
                "timeoutSec": 10,
                "statusMessage": "updating the guards"
              }
            ]
          }
        ]
      }
    }
    ```
    
    .codex/hooks/session_start_demo.py
    ```
    #!/usr/bin/env python3
    
    import json
    import sys
    from pathlib import Path
    
    
    def main() -> int:
        payload = json.load(sys.stdin)
        cwd = Path(payload.get("cwd", ".")).name or "wizard-tower"
        source = payload.get("source", "startup")
        source_label = "resume" if source == "resume" else "startup"
        source_prefix = (
            "Resume context:"
            if source == "resume"
            else "Startup context:"
        )
    
        output = {
            "systemMessage": (
                f"Hi, I'm a session start hook for {cwd} ({source_label})."
            ),
            "hookSpecificOutput": {
                "hookEventName": "SessionStart",
                "additionalContext": (
                    f"{source_prefix} A wimboltine stonpet is an exotic cuisine from hyperspace"
                ),
            },
        }
        print(json.dumps(output))
        return 0
    
    
    if __name__ == "__main__":
        raise SystemExit(main())
    ```
    
    .codex/hooks/stop_demo_block.py
    ```
    #!/usr/bin/env python3
    
    import json
    import sys
    
    
    def main() -> int:
        payload = json.load(sys.stdin)
        stop_hook_active = payload.get("stop_hook_active", False)
        last_assistant_message = payload.get("last_assistant_message") or ""
        char_count = len(last_assistant_message.strip())
    
        if stop_hook_active:
            system_message = (
                "Wizard Tower Stop hook saw a second pass and stayed calm to avoid a loop."
            )
            print(json.dumps({"systemMessage": system_message}))
        else:
            system_message = (
                f"Wizard Tower Stop hook continuing conversation"
            )
            print(json.dumps({"systemMessage": system_message, "decision": "block", "reason": "cook the stonpet"}))
    
        return 0
    
    
    if __name__ == "__main__":
        raise SystemExit(main())
    ```
  • Add Smart Approvals guardian review across core, app-server, and TUI (#13860)
    ## Summary
    - add `approvals_reviewer = "user" | "guardian_subagent"` as the runtime
    control for who reviews approval requests
    - route Smart Approvals guardian review through core for command
    execution, file changes, managed-network approvals, MCP approvals, and
    delegated/subagent approval flows
    - expose guardian review in app-server with temporary unstable
    `item/autoApprovalReview/{started,completed}` notifications carrying
    `targetItemId`, `review`, and `action`
    - update the TUI so Smart Approvals can be enabled from `/experimental`,
    aligned with the matching `/approvals` mode, and surfaced clearly while
    reviews are pending or resolved
    
    ## Runtime model
    This PR does not introduce a new `approval_policy`.
    
    Instead:
    - `approval_policy` still controls when approval is needed
    - `approvals_reviewer` controls who reviewable approval requests are
    routed to:
      - `user`
      - `guardian_subagent`
    
    `guardian_subagent` is a carefully prompted reviewer subagent that
    gathers relevant context and applies a risk-based decision framework
    before approving or denying the request.
    
    The `smart_approvals` feature flag is a rollout/UI gate. Core runtime
    behavior keys off `approvals_reviewer`.
    
    When Smart Approvals is enabled from the TUI, it also switches the
    current `/approvals` settings to the matching Smart Approvals mode so
    users immediately see guardian review in the active thread:
    - `approval_policy = on-request`
    - `approvals_reviewer = guardian_subagent`
    - `sandbox_mode = workspace-write`
    
    Users can still change `/approvals` afterward.
    
    Config-load behavior stays intentionally narrow:
    - plain `smart_approvals = true` in `config.toml` remains just the
    rollout/UI gate and does not auto-set `approvals_reviewer`
    - the deprecated `guardian_approval = true` alias migration does
    backfill `approvals_reviewer = "guardian_subagent"` in the same scope
    when that reviewer is not already configured there, so old configs
    preserve their original guardian-enabled behavior
    
    ARC remains a separate safety check. For MCP tool approvals, ARC
    escalations now flow into the configured reviewer instead of always
    bypassing guardian and forcing manual review.
    
    ## Config stability
    The runtime reviewer override is stable, but the config-backed
    app-server protocol shape is still settling.
    
    - `thread/start`, `thread/resume`, and `turn/start` keep stable
    `approvalsReviewer` overrides
    - the config-backed `approvals_reviewer` exposure returned via
    `config/read` (including profile-level config) is now marked
    `[UNSTABLE]` / experimental in the app-server protocol until we are more
    confident in that config surface
    
    ## App-server surface
    This PR intentionally keeps the guardian app-server shape narrow and
    temporary.
    
    It adds generic unstable lifecycle notifications:
    - `item/autoApprovalReview/started`
    - `item/autoApprovalReview/completed`
    
    with payloads of the form:
    - `{ threadId, turnId, targetItemId, review, action? }`
    
    `review` is currently:
    - `{ status, riskScore?, riskLevel?, rationale? }`
    - where `status` is one of `inProgress`, `approved`, `denied`, or
    `aborted`
    
    `action` carries the guardian action summary payload from core when
    available. This lets clients render temporary standalone pending-review
    UI, including parallel reviews, even when the underlying tool item has
    not been emitted yet.
    
    These notifications are explicitly documented as `[UNSTABLE]` and
    expected to change soon.
    
    This PR does **not** persist guardian review state onto `thread/read`
    tool items. The intended follow-up is to attach guardian review state to
    the reviewed tool item lifecycle instead, which would improve
    consistency with manual approvals and allow thread history / reconnect
    flows to replay guardian review state directly.
    
    ## TUI behavior
    - `/experimental` exposes the rollout gate as `Smart Approvals`
    - enabling it in the TUI enables the feature and switches the current
    session to the matching Smart Approvals `/approvals` mode
    - disabling it in the TUI clears the persisted `approvals_reviewer`
    override when appropriate and returns the session to default manual
    review when the effective reviewer changes
    - `/approvals` still exposes the reviewer choice directly
    - the TUI renders:
    - pending guardian review state in the live status footer, including
    parallel review aggregation
      - resolved approval/denial state in history
    
    ## Scope notes
    This PR includes the supporting core/runtime work needed to make Smart
    Approvals usable end-to-end:
    - shell / unified-exec / apply_patch / managed-network / MCP guardian
    review
    - delegated/subagent approval routing into guardian review
    - guardian review risk metadata and action summaries for app-server/TUI
    - config/profile/TUI handling for `smart_approvals`, `guardian_approval`
    alias migration, and `approvals_reviewer`
    - a small internal cleanup of delegated approval forwarding to dedupe
    fallback paths and simplify guardian-vs-parent approval waiting (no
    intended behavior change)
    
    Out of scope for this PR:
    - redesigning the existing manual approval protocol shapes
    - persisting guardian review state onto app-server `ThreadItem`s
    - delegated MCP elicitation auto-review (the current delegated MCP
    guardian shim only covers the legacy `RequestUserInput` path)
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Add code_mode_only feature (#14617)
    Summary
    - add the code_mode_only feature flag/config schema and wire its
    dependency on code_mode
    - update code mode tool descriptions to list nested tools with detailed
    headers
    - restrict available tools for prompt and exec descriptions when
    code_mode_only is enabled and test the behavior
    
    Testing
    - Not run (not requested)
  • feat(app-server, core): add more spans (#14479)
    ## Description
    
    This PR expands tracing coverage across app-server thread startup, core
    session initialization, and the Responses transport layer. It also gives
    core dispatch spans stable operation-specific names so traces are easier
    to follow than the old generic `submission_dispatch` spans.
    
    Also use `fmt::Display` for types that we serialize in traces so we send
    strings instead of rust types
  • Add plugin usage telemetry (#14531)
    adding metrics including: 
    * plugin used
    * plugin installed/uninstalled
    * plugin enabled/disabled
  • Reuse tool runtime for code mode worker (#14496)
    ## Summary
    - create the turn-scoped `ToolCallRuntime` before starting the code mode
    worker so the worker reuses the same runtime and router
    - thread the shared runtime through the code mode service/worker path
    and use it for nested tool calls
    - model aborted tool calls as a concrete `ToolOutput` so aborted
    responses still produce valid tool output shapes
    
    ## Testing
    - `just fmt`
    - `cargo test -p codex-core` (still running locally)
  • Do not allow unified_exec for sandboxed scenarios on Windows (#14398)
    as reported in https://github.com/openai/codex/issues/14367 users can
    explicitly enable unified_exec which will bypass the sandbox even when
    it should be enabled.
    
    Until we support unified_exec with the Windows Sandbox, we will disallow
    it unless the sandbox is disabled
  • Dispatch tools when code mode is not awaited directly (#14437)
    ## Summary
    - start a code mode worker once per turn and let it pump nested tool
    calls through a dedicated queue
    - simplify code mode request/response dispatch around request ids and
    generic runner-unavailable errors
    - clean up the code mode process API and runner protocol plumbing
    
    ## Testing
    - not run yet
  • fix: follow up on linux sandbox review nits (#14440)
    ## Summary
    - address the follow-up review nits from #13996 in a separate PR
    - make the approvals test command a raw string and keep the
    managed-network path using env proxy routing
    - inline `--apply-seccomp-then-exec` in the Linux sandbox inner command
    builder
    - remove the bubblewrap-specific sandbox metric tag path and drop the
    `use_legacy_landlock` shim from `sandbox_tag`/`TurnMetadataState::new`
    - restore the `Feature` import that `origin/main` currently still needs
    in `connectors.rs`
    
    ## Testing
    - `cargo test -p codex-linux-sandbox`
    - focused `codex-core` tests were rerun/started, but the final
    verification pass was interrupted when I pushed at request
  • refactor: make bubblewrap the default Linux sandbox (#13996)
    ## Summary
    - make bubblewrap the default Linux sandbox and keep
    `use_legacy_landlock` as the only override
    - remove `use_linux_sandbox_bwrap` from feature, config, schema, and
    docs surfaces
    - update Linux sandbox selection, CLI/config plumbing, and related
    tests/docs to match the new default
    - fold in the follow-up CI fixes for request-permissions responses and
    Linux read-only sandbox error text