Commit Graph

1331 Commits

  • [codex] Send Responses Lite transport header (#26542)
    ## Summary
    
    - send `X-OpenAI-Internal-Codex-Responses-Lite: true` on HTTP Responses
    requests and WebSocket upgrade requests when model metadata enables
    Responses Lite
    - use client metadata when sending it over the websocket
    
    This PR is stacked on #26490.
    
    ## Why
    
    The Responses Lite marker is request-scoped for HTTP but
    connection-scoped for Responses-over-WebSocket because it is carried on
    the upgrade request. Reusing a cached socket opened for the opposite
    mode would therefore send the wrong transport contract.
    
    ## Validation
    
    - `just test -p codex-core responses_lite`
    - `just test -p codex-core
    responses_websocket_reconnects_when_responses_lite_mode_changes`
    - `just fix -p codex-core`
    - `just fmt`
  • [codex-rs] support v2 personal access tokens (#25731)
    ## Summary
    
    - add v2 personal access token support for `codex login
    --with-access-token` and `CODEX_ACCESS_TOKEN`
    - classify opaque `at-` tokens separately from legacy Agent Identity
    JWTs
    - hydrate required ChatGPT account metadata through AuthAPI
    `/v1/user-auth-credential/whoami`
    - use PATs directly as bearer tokens while preserving existing ChatGPT
    account surfaces
    - expose PAT-backed auth as the explicit `personalAccessToken`
    app-server auth mode
    
    ## Implementation
    
    PAT auth is intentionally small and stateless. Loading a PAT performs
    one AuthAPI metadata request, stores the hydrated metadata in the
    in-memory auth object, and redacts the secret from debug output. Legacy
    Agent Identity JWT handling remains unchanged. The shared access-token
    classifier lives in a private neutral module because it dispatches
    between both credential types.
    
    PAT hydration fails closed when AuthAPI omits any required metadata,
    including email. Hydrated metadata is intentionally not persisted:
    startup performs a live `whoami` preflight so revoked tokens or changed
    account metadata are not accepted from a stale cache.
    
    ## Workspace restriction scope
    
    This change intentionally does **not** apply
    `forced_chatgpt_workspace_id` to PAT authentication. The setting is a
    client-side config guardrail, not an authorization boundary, and PAT
    does not currently require workspace-ID parity. The PAT login and
    `CODEX_ACCESS_TOKEN` paths therefore validate through AuthAPI without
    threading workspace-restriction state through access-token loading.
    Existing workspace checks for non-PAT auth remain on their established
    paths.
    
    ## App-server compatibility
    
    The public app-server `AuthMode` is shared across v1 and v2, and
    PAT-backed auth reports `personalAccessToken` through both APIs.
    Following human review, this intentionally removes the temporary v1
    compatibility mapping that reported PATs as `chatgpt`; the deprecated v1
    API is kept in parity with v2 rather than maintaining a separate closed
    enum. Clients with exhaustive auth-mode handling in either API version
    must add the new case and should generally treat it as ChatGPT-backed
    unless they need PAT-specific behavior.
    
    The v1 auth-status response still omits the raw PAT when `includeToken`
    is requested because that response cannot carry the account metadata
    needed to reuse the credential safely. Persisted PAT auth also omits the
    new enum value so older Codex builds can deserialize `auth.json` and
    infer PAT auth from the credential field after a rollback.
    
    ## Validation
    
    Latest review-fix validation:
    
    - `CARGO_INCREMENTAL=0 just test -p codex-login` (126 passed)
    - `CARGO_INCREMENTAL=0 just test -p codex-cli` (263 passed)
    - `CARGO_INCREMENTAL=0 just test -p codex-cli
    stored_auth_validation_handles_personal_access_token`
    - `CARGO_INCREMENTAL=0 just test -p codex-app-server-protocol` (226
    passed)
    - `CARGO_INCREMENTAL=0 just test -p codex-models-manager
    refresh_available_models_uses_remote_only_catalog_for_chatgpt_auth`
    - `CARGO_INCREMENTAL=0 just test -p codex-tui
    existing_non_oauth_chatgpt_login_counts_as_signed_in`
    - `CARGO_INCREMENTAL=0 just fix -p codex-login -p
    codex-app-server-protocol -p codex-models-manager -p codex-tui -p
    codex-cli`
    - `just fmt`
    - `git diff --check`
    
    The broader `codex-tui` suite previously compiled and ran 2,834 tests.
    Three unrelated environment-sensitive guardian/IDE-socket tests failed
    after retries; the PAT-relevant TUI coverage passed.
  • [codex] Use standalone tools for Responses Lite (#26490)
    ## Summary
    
    Responses Lite does not execute hosted Responses tools, so models using
    it must route web search and image generation through Codex-owned
    executors & standalone Response's API endpoints.
    
    This PR is stacked on #26487.
    
    ## Validation
    
    - `cargo test -p codex-core responses_lite_ --lib`
    - `cargo test -p codex-core
    standalone_executors_remain_hidden_without_flags_or_responses_lite
    --lib`
    - `cargo test -p codex-core
    hosted_tools_follow_provider_auth_model_and_config_gates --lib`
    - `cargo test -p codex-web-search-extension -p
    codex-image-generation-extension`
    - `cargo test -p codex-app-server --test all standalone_`
    - `cargo fmt --all -- --check`
  • [2 of 2] Finish moving goal runtime to extension (#26548)
    ## Stack
    
    1. [#26547](https://github.com/openai/codex/pull/26547) - [1 of 2] Align
    goal extension with core behavior
    2. [#26548](https://github.com/openai/codex/pull/26548) - [2 of 2] Move
    goal runtime to extension
    
    ## Why
    
    This PR completes the switch of the goal behavior to the
    extension-backed runtime and removes the old core goal implementation.
    
    ## What Changed
    
    - Installs the goal extension for app-server `ThreadManager` sessions.
    - Routes app-server thread goal `get`, `set`, and `clear` through
    `GoalService`.
    - Uses thread-idle lifecycle emission after goal resume and snapshot
    ordering so the extension can decide whether to continue the goal.
    - Forwards extension goal updates through a FIFO async app-server
    notification path so backpressure does not drop them or reorder updates.
    - Keeps review turns from enabling goal runtime behavior.
    - Plans extension tools before dynamic tools so built-in goal tool names
    keep their old precedence when goals are enabled.
    - Removes the old core goal runtime, core goal tool handlers, and core
    goal tool specs.
    - Updates tests that were coupled to the core-owned goal runtime while
    leaving the legacy `<goal_context>` compatibility path in core for old
    threads.
    - Removes the stale cargo-shear ignore now that `codex-goal-extension`
    is used by the workspace.
    - Keeps realtime event matching exhaustive after removing the old
    goal-specific realtime text path.
    
    
    ## Validation
    
    - Ran manual `/goal` runs in TUI. Validated time accounting matched
    wall-clock time and goal lifecycle state transitions.
  • [codex] Respect Windows sandbox backend in exec policy (#26307)
    ## Why
    
    Windows managed filesystem permissions can now be backed by a real
    Windows sandbox. `exec-policy` was still treating the managed read-only
    policy shape as if there were never a sandbox backend, so benign
    unmatched commands such as PowerShell directory listings could be
    rejected with `blocked by policy` even when `windows.sandbox` was
    enabled.
    
    The inverse case still needs to stay conservative: when the Windows
    sandbox backend is disabled, managed filesystem restrictions are only
    configuration intent, not an enforced filesystem boundary. That applies
    to writable-root restricted profiles too, not just read-only profiles.
    
    ## What Changed
    
    - Thread the effective `WindowsSandboxLevel` into exec-policy approval
    decisions for shell, unified exec, and intercepted shell exec paths.
    - Treat managed restricted filesystem profiles as lacking sandbox
    protection only on Windows when `WindowsSandboxLevel::Disabled`.
    - Exclude full-disk-write profiles from that no-backend path because
    they do not rely on filesystem sandbox enforcement.
    - Remove the cwd-sensitive read-only heuristic and the now-stale cwd
    plumbing from exec-policy approval contexts.
    - Add Windows coverage for both enabled-sandbox and disabled-backend
    behavior, including a writable-root managed profile.
    
    ## Validation
    
    - Added/updated `exec_policy` coverage for managed filesystem
    restrictions, full-disk-write exclusion, enabled Windows sandbox
    behavior, and disabled-backend read-only/writable-root behavior.
    - `just test -p codex-core exec_policy` — 100 passed, 10 leaky
    - Empirical local `codex exec` probe with `--sandbox read-only -c
    'windows.sandbox="unelevated"'`: PowerShell directory listing completed
    successfully.
    - Disabled-backend control with Windows sandbox cleared: the same
    command was rejected with `blocked by policy`.
  • Make turn diff tracker multi-env aware (#26433)
    ## Why
    
    Turn diffs were tracked as one flat set of absolute paths. In
    multi-environment turns, local and remote environments can report the
    same path while representing different filesystems, so a single path key
    can collapse distinct changes or attribute them to the wrong
    environment.
    
    The environment name is **NOT** included in the generated unified diff.
    This can come later.
  • Require absolute cwd in thread settings (#26532)
    ## Why
    
    Thread settings cwd overrides are expected to be resolved before they
    enter core. Keeping this boundary as a plain `PathBuf` made it easy for
    core/session code to keep fallback normalization and relative-path
    resolution logic in places that should only receive an already-resolved
    cwd.
    
    This is intentionally the absolute-cwd-only slice: it does not change
    environment selection stickiness or cwd-to-default-environment fallback
    behavior.
    
    ## What changed
    
    - Changes `ThreadSettingsOverrides.cwd`,
    `CodexThreadSettingsOverrides.cwd`, and `SessionSettingsUpdate.cwd` to
    use `AbsolutePathBuf`.
    - Removes core-side cwd normalization/resolution from session settings
    updates.
    - Updates affected core/app-server test helpers and callsites to pass
    existing absolute cwd values or use `abs()` helpers.
    
    ## Validation
    
    Opening as draft so CI can start while local validation continues.
  • Encrypt multi-agent v2 message payloads (#26210)
    ## Why
    
    Multi-agent v2 currently routes agent instructions through normal tool
    arguments and inter-agent context. That means the parent model can emit
    plaintext task text, Codex can persist it in history/rollouts, and the
    recipient can receive it as ordinary assistant-message JSON.
    
    This changes the v2 path so agent instructions stay encrypted between
    model calls: Responses encrypts the `message` argument returned by the
    model, Codex forwards only that ciphertext, and Responses decrypts it
    internally for the recipient model.
    
    ## What changed
    
    - Mark the v2 `message` parameter as encrypted for `spawn_agent`,
    `send_message`, and `followup_task`.
    - Treat multi-agent v2 tool `message` values as ciphertext
    unconditionally.
    - Store v2 inter-agent task text in
    `InterAgentCommunication.encrypted_content` with empty plaintext
    `content`.
    - Convert encrypted inter-agent communications into the Responses
    `agent_message` input item before sending the child request.
    - Preserve `agent_message` items across history, rollout, compaction,
    telemetry, and app-server schema paths.
    - Leave multi-agent v1 unchanged.
    
    ## Message shape
    
    The model still calls the v2 tools with a `message` argument, but that
    value is now ciphertext:
    
    ```json
    {
      "name": "spawn_agent",
      "arguments": {
        "task_name": "worker",
        "message": "<ciphertext>"
      }
    }
    ```
    
    Codex stores the task as encrypted inter-agent communication:
    
    ```json
    {
      "author": "/root",
      "recipient": "/root/worker",
      "content": "",
      "encrypted_content": "<ciphertext>",
      "trigger_turn": true
    }
    ```
    
    When Codex builds the recipient request, it forwards the ciphertext
    using the new Responses input item:
    
    ```json
    {
      "type": "agent_message",
      "author": "/root",
      "recipient": "/root/worker",
      "content": [
        {
          "type": "encrypted_content",
          "encrypted_content": "<ciphertext>"
        }
      ]
    }
    ```
    
    Responses decrypts that item internally for the recipient model.
    
    ## Context impact
    
    - Parent context no longer carries plaintext v2 agent task instructions
    from these tool arguments.
    - Codex rollout/history stores ciphertext for v2 agent instructions.
    - Recipient requests receive an `agent_message` item instead of
    assistant commentary JSON for encrypted task delivery.
    - Plaintext completion/status notifications are still plaintext because
    they are Codex-generated status messages, not encrypted model tool
    arguments.
    
    ## Validation
    
    - `just test -p codex-tools`
    - `just test -p codex-protocol`
    - `just test -p codex-rollout`
    - `just test -p codex-rollout-trace`
    - `just test -p codex-otel`
    - `just write-app-server-schema`
  • [codex] Add use_responses_lite 'override' logic (#26487)
    ## Summary
    
    - add a defaulted `ModelInfo.use_responses_lite` catalog field
    - support serializing `reasoning.context` while preserving the existing
    effort and summary path
    - has not been turned on for any models yet
    
    I've added an override to parallel tools if responses_lite is on. I've
    also forced persistent reasoning when using responses_lite. It would be
    ideal if we could centralize all the responses_lite plumbing, but I
    think this is best for now to keep the plumbing & diffs small.
    
    ## Testing
    
    - `cargo test -p codex-protocol
    model_info_defaults_availability_nux_to_none_when_omitted`
    - `RUST_MIN_STACK=8388608 cargo test -p codex-core
    responses_lite_sets_all_turns_context_and_disables_parallel_tool_calls`
    - `RUST_MIN_STACK=8388608 cargo test -p codex-core
    configured_reasoning_summary_is_sent`
    - `cargo check -p codex-core --tests`
    - `RUST_MIN_STACK=8388608 cargo clippy -p codex-core --tests` (passes
    with pre-existing warnings in `codex-code-mode` and
    `codex-core-plugins`)
  • [codex] Emit sandbox outcome telemetry event (#25955)
    ## Summary
    
    Adds a dedicated `codex.sandbox_outcome` telemetry event so we can query
    sandbox edge outcomes without threading sandbox metadata through
    tool-result output types.
    
    This is meant to make sandbox failures and approved escalation retries
    visible in OTEL while keeping the existing `codex.tool_result` event
    shape focused on tool completion data.
    
    ## What changed
    
    - Adds `SessionTelemetry::sandbox_outcome(...)`, which emits
    `codex.sandbox_outcome` as both a log and trace event.
    - Records the tool name, call id, sandbox outcome, initial attempt
    duration, and escalated attempt duration when a retry runs.
    - Emits `denied` when the sandbox blocks execution and no retry is run.
    - Emits `timed_out` and `signal` when those sandbox errors surface from
    tool execution.
    - Emits `escalated` when the initial sandboxed attempt fails and the
    approved unsandboxed retry succeeds.
    - Adds OTEL coverage for the new event payload, including timing fields.
    
    ## Validation
    
    - `RUST_MIN_STACK=8388608 just test -p codex-core
    sandbox_outcome_event_records_outcome
    handle_sandbox_error_user_approves_retry_records_tool_decision`
    - `just test -p codex-otel
    otel_export_routing_policy_routes_tool_result_log_and_trace_events
    runtime_metrics_summary_collects_tool_api_and_streaming_metrics`
    - `just fix -p codex-core`
    - `just fix -p codex-otel`
  • ci: test windows cross build (#25000)
    We cross build when using bazel for windows. This causes a couple
    hiccups in that v8 does a mksnapshot step that is expecting to snapshot
    on the host arch which wasn't matching when we were doing the
    crossbuild. This was causing segfault failiures when starting up
    codemode from a cross built artifact.
    
    This changes things such that we cross build the library and then run
    and link a snapshot on the host machine/arch which is windows. This
    gives us a functional snapshot and library that can start code-mode on
    windows.
    
    This fixes the build and then fixes two test regressions we had.
  • [codex] Preserve logical paths during AGENTS.md discovery (#26465)
    ## Intent
    
    Follow up on #26205 by avoiding unnecessary filesystem canonicalization
    during `AGENTS.md` discovery. The configured working directory is
    already absolute, and canonicalization incorrectly switches symlinked
    workspaces from their logical parent hierarchy to the target's
    hierarchy.
    
    ## User-facing behavior
    
    For a symlinked working directory such as:
    
    ```text
    test-root/
    |-- logical-repo/
    |   |-- AGENTS.md              ("logical parent doc")
    |   `-- workspace ------------> physical-repo/workspace/
    `-- physical-repo/
        |-- AGENTS.md              ("physical parent doc")
        `-- workspace/
            `-- AGENTS.md          ("workspace doc")
    ```
    
    Before this change, Codex canonicalized `logical-repo/workspace` to
    `physical-repo/workspace` before discovery. It therefore loaded
    `physical-repo/AGENTS.md` and `physical-repo/workspace/AGENTS.md`,
    ignoring the instructions from the repository through which the user
    entered the workspace.
    
    After this change, ancestor discovery walks the configured logical path,
    so Codex loads `logical-repo/AGENTS.md`. Opening
    `logical-repo/workspace/AGENTS.md` still follows the symlink through the
    host filesystem, so the workspace document is also loaded.
    `physical-repo/AGENTS.md` is not loaded.
    
    ## Implementation
    
    Use the logical absolute working directory when discovering project
    instructions and reporting instruction sources. Filesystem reads still
    follow the working-directory symlink, so an `AGENTS.md` in the target
    workspace continues to load while ancestor discovery uses the symlink's
    parents.
    
    ## Validation
    
    Added integration coverage proving that discovery loads the logical
    parent's instructions and the target workspace's instructions, but not
    the target parent's instructions.
  • [codex] Support model-defined reasoning efforts (#26444)
    ## Summary
    - accept non-empty model-defined reasoning effort values while
    preserving built-in effort behavior
    - propagate the non-Copy effort type through core, app-server, TUI,
    telemetry, and persistence call sites
    - preserve string wire encoding and expose an open-string schema for
    clients
    - update model selection and shortcut behavior for model-advertised
    effort values
    
    ## Root cause
    `ReasoningEffort` gained a string-backed custom variant, so it could no
    longer implement `Copy` or rely on derived closed-enum serialization.
    Existing consumers still moved effort values from shared references and
    assumed a fixed built-in value set.
    
    ## Validation
    - `just fmt`
    - Local tests and compilation were not run per request; relying on CI.
  • Remove response.processed websocket request (#26447)
    ## Why
    
    The Responses websocket client no longer needs to send a follow-up
    `response.processed` request after a turn response has already been
    recorded. Keeping that extra acknowledgement path adds feature-gated
    control flow and a second websocket request shape that no longer carries
    useful behavior.
    
    ## What Changed
    
    - Removed the `response.processed` websocket request type and sender.
    - Removed the `responses_websocket_response_processed` feature flag and
    schema entry.
    - Removed turn and remote-compaction plumbing that only tracked response
    IDs to send the acknowledgement.
    - Removed tests that existed solely to cover the deleted feature path.
    
    ## Validation
    
    - `just fix -p codex-core -p codex-api -p codex-features`
  • Route AGENTS.md loading through environment filesystems (#26205)
    ## Why
    
    Workspace-specific `AGENTS.md` loading needs to use the selected
    environment filesystem so remote workspaces and child agents read
    instructions from their actual environment instead of the host
    filesystem. The app-server should report the same instruction sources
    the initialized thread actually loaded, rather than independently
    rescanning configuration and filesystem state.
    
    ## What changed
    
    - Introduce `LoadedAgentsMd` to retain ordered user, project, and
    internal instructions with their provenance.
    - Load and canonicalize workspace `AGENTS.md` paths through the primary
    `EnvironmentManager` environment, then render the loaded instructions
    when constructing turn context.
    - Expose cached loaded instruction sources from initialized threads and
    use them for app-server start, resume, and fork responses.
    - Preserve global `CODEX_HOME` loading and separator behavior while
    excluding empty project files that did not supply model-visible
    instructions.
    - Add integration coverage for CLI injection, selected-environment
    provenance and rendering, empty environment selection, and cached
    sources on loaded-thread resume.
    
    ## Validation
    
    - `just test -p codex-core agents_md`
    - `just test -p codex-core
    selected_environment_sources_match_model_visible_instructions`
    - `just test -p codex-exec agents_md`
    - `just test -p codex-app-server instruction_sources`
    - `just test -p codex-app-server --status-level fail`
  • core: allow excluding tool namespaces from code mode (#26320)
    ## Why
    
    Research and training setups need to control which tool namespaces
    appear inside code mode's nested `tools` surface without disabling those
    tools entirely. This makes it possible to train against a deliberately
    reduced nested-tool setup while preserving the normal direct and
    deferred tool paths.
    
    ## What
    
    - Extend `features.code_mode` to accept structured configuration while
    preserving the existing boolean syntax.
    - Add an exact `excluded_tool_namespaces` list under
    `[features.code_mode]`:
    
      ```toml
      [features.code_mode]
      enabled = true
      excluded_tool_namespaces = ["mcp__codex_apps", "multi_agent_v1"]
      ```
    
    - Filter matching canonical `ToolName` namespaces when constructing code
    mode's nested router and code-mode-specific direct tool descriptions.
    - Keep excluded tools registered, directly exposed in mixed code mode,
    and discoverable through top-level `tool_search` when otherwise
    eligible.
    - Derive deferred nested-tool guidance after namespace filtering so the
    `exec` description does not advertise excluded-only deferred tools.
    - Preserve the boolean/table representation when materializing config
    locks and update the generated config schema.
    
    ## Testing
    
    - `just test -p codex-features`
    - `just test -p codex-config`
    - `just test -p codex-core load_config_resolves_code_mode_config`
    - `just test -p codex-core
    lock_contains_prompts_and_materializes_features`
    - `just test -p codex-core
    excluded_deferred_namespaces_do_not_enable_nested_tool_guidance`
    - `just test -p codex-core
    code_mode_excludes_configured_nested_tool_namespaces`
    - `cargo check -p codex-thread-manager-sample`
  • log plugin MCP server names (#26002)
    ## Summary
    - emit the plugin capability summary's exact MCP server names in
    `codex_plugin_used`
    
    ## Test
    - `just test -p codex-analytics`
    - `just test -p codex-core
    explicit_plugin_mentions_track_plugin_used_analytics`
    - `just fix -p codex-analytics`
  • Use Windows setup marker as completion signal (#26074)
    # Why
    
    When an organization requires the elevated Windows sandbox, Codex
    launches an elevated helper to provision users, configure firewall and
    ACL rules, and lock persistent sandbox directories.
    
    We observed that closing the helper after setup started could leave the
    machine partially initialized while the TUI still announced **Sandbox
    ready**. Model-only turns continued to work, but the first shell command
    retried setup and failed with Windows cancellation error `1223`.
    
    This was not an enforcement bypass; command execution continued to fail
    closed. The issue was a false readiness signal: `setup_marker.json` was
    written during user provisioning, before the remaining setup stages had
    completed.
    
    # What
    
    Treat `setup_marker.json` as the commit record for Windows sandbox
    setup:
    
    1. Before full or provisioning setup begins, remove the existing marker
    and create the final marker path with a protected ACL.
    2. Keep the marker empty and therefore invalid while setup is in
    progress. Sandbox users cannot read, modify, or replace it.
    3. Run every synchronous setup stage.
    4. After setup succeeds, write the valid marker contents without
    changing its ACL.
    5. After the helper exits successfully, verify the existing readiness
    check before enabling the sandbox.
    
    If setup is canceled or fails, the marker remains invalid and Codex
    reports setup as incomplete instead of announcing readiness.
    
    Refresh-only and read-ACL-only helper runs continue to leave the marker
    untouched. The setup version remains `5` to avoid forcing all existing
    Windows users through elevated setup again.
    
    # Verification
    
    - Added coverage confirming sandbox users cannot read or modify the
    setup marker after elevated setup.
    - Added coverage confirming a successful helper exit without complete
    setup artifacts is rejected.
    - Ran `just test -p codex-windows-sandbox`.
  • Rewrite oversized tool outputs during remote compaction (#26251)
    ## Why
    
    When trying to fit history under compaction limit rewrite output items
    instead of removing them entirely. Otherwise we're breaking
    incrementality in relation to the previous response.
  • feat: catalog multi-agent v2 config (#26254)
    ## Why
    
    Model metadata can now select multi-agent v2 even when a user has not
    enabled `features.multi_agent_v2` in their config. Some existing configs
    still set the legacy `agents.max_threads` knob for v1 multi-agent
    behavior, so treating every v2 runtime as incompatible with
    `agents.max_threads` would break users whose only v2 signal came from
    the model catalog.
    
    The incompatible configuration is specifically enabling
    `features.multi_agent_v2` while also setting `agents.max_threads`.
    Catalog-forced v2 should use the v2 concurrency setting and ignore the
    legacy v1 cap instead of rejecting the config.
    
    ## What changed
    
    - Split config validation from runtime concurrency calculation:
    `effective_agent_max_threads` now just returns the effective cap for the
    resolved multi-agent runtime.
    - Added explicit validation for `features.multi_agent_v2` +
    `agents.max_threads` at session startup.
    - Preserved catalog-selected v2 behavior when `features.multi_agent_v2`
    is disabled, so existing configs with `agents.max_threads` keep
    starting.
    - Updated model-runtime selector coverage so a catalog v2 model still
    exposes v2 tools even when `agents.max_threads` is set and the config
    flag is disabled.
    
    ## Validation
    
    - `cargo check -p codex-core --lib`
    - `just test -p codex-core --lib -E
    "test(multi_agent_v2_feature_rejects_agents_max_threads) |
    test(catalog_v2_allows_agents_max_threads_when_feature_disabled)"`
  • Expose local image paths to models (#25944)
    ## Why
    
    Local image attachments include image bytes, but the adjacent
    model-visible label omits the source path. Exposing the path lets
    model-selected workflows refer back to the intended local image
    explicitly.
    
    ## What changed
    
    - Include an escaped `path` attribute in model-visible local image
    opening tags.
    - Reuse the path-aware marker generator in rollout coverage.
    - Update protocol, replay, and rollout coverage for the new request
    shape.
    
    ## Validation
    
    - `just fmt`
    - `just test -p codex-protocol`
    - `just test -p codex-core skips_local_image_label_text`
    - `just test -p codex-core
    copy_paste_local_image_persists_rollout_request_shape`
    - `git diff --check`
  • Add remote request permissions integration coverage (#25867)
    ## Stack
    
    1. #25850 - Key request-permission grants by environment: stores and
    applies sticky permission grants per environment id.
    2. #25858 - Add `environmentId` to `request_permissions`: lets the model
    target a selected environment and resolves relative permission paths
    against it.
    3. #25862 - Propagate permission approval environment id: carries the
    selected environment id through approval events, app-server requests,
    TUI prompts, and delegate forwarding.
    4. This PR (#25867) - Add remote request permissions integration
    coverage: verifies the selected remote environment across request,
    approval, grant reuse, and exec.
    
    This PR is stacked on #25862 and should be reviewed after #25850,
    #25858, and #25862.
    
    ## Why
    
    The environment-scoped permission stack needs one end-to-end check that
    exercises the CCA-shaped path, not only unit-level parsing. This
    verifies that a model-sent `environmentId` on `request_permissions`
    reaches the approval event, stores the grant under the selected
    environment, and is reused by a later tool call in that same
    environment.
    
    ## What Changed
    
    - Adds a remote executor integration test for `request_permissions` with
    `environmentId: remote` and a relative write root.
    - Asserts the permission event reports the remote environment and cwd,
    and that the normalized grant resolves under the remote cwd.
    - Approves the grant, then runs a remote `exec_command` without explicit
    per-call permissions and verifies it completes without another exec
    approval and writes only in the remote filesystem.
    
    ## Verification
    
    - Not run locally per instruction.
    - `git diff --check`
  • [codex] Keep hosted tools visible in code-only mode (#25890)
    ## Why
    
    `code_mode_only` moved ordinary runtime tools behind `exec`, but it also
    hid hosted Responses tools. Hosted `web_search` and `image_generation`
    do not have a nested `exec` runtime path, so code-only sessions lost
    those capabilities entirely even when their existing provider, auth,
    model, and configuration gates passed.
    
    ## What changed
    
    - Keep hosted Responses tools top-level in `code_mode_only` sessions
    after their existing gates pass.
    - Preserve the existing nested-tool behavior for ordinary runtimes and
    the direct-only behavior for multi-agent v2 tools.
    - Add planner coverage for `code_mode_only` with default multi-agent v2
    settings, hosted live web search, and hosted image generation.
    
    ## Verification
    
    - Added focused regression coverage in
    `codex-rs/core/src/tools/spec_plan_tests.rs`.
    - Left execution to CI per repository workflow.
  • Switch runtime to cloud config bundle (#24622)
    ## Summary
    
    - Adapts the moved `codex-cloud-config` crate from the legacy cloud
    requirements endpoint to the new config bundle endpoint.
    - Switches runtime consumers from `CloudRequirementsLoader` to
    `CloudConfigBundleLoader` so one shared bundle supplies cloud-delivered
    config and requirements.
    - Removes the legacy cloud requirements domain loader path.
    
    ## Details
    
    This intentionally keeps `codex-cloud-config` monolithic for review
    lineage: the previous PR establishes the crate move, and this PR shows
    the behavior change against that moved implementation. A follow-up PR
    splits the module back into focused files.
    
    The new bundle path preserves the important cloud requirements loader
    semantics where intended: account-scoped signed cache, 30 minute TTL, 5
    minute refresh cadence, retry/backoff, auth recovery, and fail-closed
    startup loading. The cached payload changes from a single requirements
    TOML string to the backend-delivered bundle, and validation rejects
    malformed config or requirements fragments before cache write/use.
  • flake: Keep plugin test homes alive (#25857)
    ## Summary
    
    Keep the full `TestCodex` harness alive in plugin integration tests
    instead of returning only the `CodexThread`.
    
    ## Why
    
    The helper was moving a temporary `codex_home` into `TestCodex`, then
    immediately dropping the harness and returning only the thread. For
    plugin MCP tests, the MCP server cwd is inside that temporary home. If
    the temp directory is removed while MCP startup is still racing, the
    server launch can fail with `No such file or directory`.
    
    Keeping the harness in scope keeps the temp home alive for the test
    duration and removes the lifetime race behind the recent
    `explicit_plugin_mentions_inject_plugin_guidance` flake.
    
    ## Validation
    
    - `just fmt`
    - `just test -p codex-core
    explicit_plugin_mentions_inject_plugin_guidance`
  • Test runtime selector before first turn (#25724)
    Stack split from #25708. Original PR intentionally left open. This fifth
    PR adds coverage that a remotely selected multi-agent runtime is applied
    when the model is selected before the first turn.
  • Test remote multi-agent runtime selector override (#25723)
    Stack split from #25708. Original PR intentionally left open. This
    fourth PR adds coverage that remote model multi-agent runtime selectors
    override local feature flag defaults.
  • Add multi-agent runtime metadata types (#25720)
    Stack split from #25708. Original PR intentionally left open. This first
    PR adds the multi-agent runtime metadata types and catalog plumbing used
    by the rest of the stack.
  • feat: show enterprise monthly credit limits in status (#24812)
    ## Summary
    
    Enterprise users can have an effective monthly credit limit, but Codex
    `/status` currently drops that metadata from the account-usage response.
    
    This change adds the optional `spend_control.individual_limit`
    projection to the existing rate-limit snapshot flow. The backend client
    reads the monthly limit, app-server exposes it as `individualLimit`, and
    the TUI renders a `Monthly credit limit` row through the existing
    progress-bar renderer.
    
    When the backend does not return an effective monthly limit, existing
    rate-limit behavior is unchanged.
    
    ## Existing backend state
    
    The account-usage backend already returns the effective monthly limit
    and current usage together:
    
    ```json
    {
      "spend_control": {
        "reached": false,
        "individual_limit": {
          "limit": "25000",
          "used": "8000",
          "remaining": "17000",
          "used_percent": 32,
          "remaining_percent": 68,
          "reset_after_seconds": 86400,
          "reset_at": 1778137680
        }
      }
    }
    ```
    
    Before this change, Codex projected rolling `primary` and `secondary`
    windows plus `credits`. It ignored `spend_control.individual_limit`, so
    app-server clients and `/status` could not render the monthly cap.
    
    The updated flow is:
    
    ```text
    account usage backend
      -> backend-client reads spend_control.individual_limit
      -> existing rate-limit snapshot carries optional individual_limit
      -> app-server exposes optional individualLimit
      -> TUI renders Monthly credit limit
    ```
    
    ## App-server contract
    
    `account/rateLimits/read` and sparse `account/rateLimits/updated`
    notifications now include an additive nullable
    `rateLimits.individualLimit` field:
    
    ```json
    {
      "individualLimit": {
        "limit": "25000",
        "used": "8000",
        "remainingPercent": 68,
        "resetsAt": 1778137680
      }
    }
    ```
    
    In an `account/rateLimits/read` response, `null` means no monthly limit
    is available. `account/rateLimits/updated` remains a sparse rolling
    notification: clients merge available values into their most recent
    `account/rateLimits/read` snapshot or refetch. Nullable account metadata
    in a rolling notification does not clear a previously observed value.
    
    ## Design decisions
    
    - Extend the existing rate-limit snapshot instead of introducing a
    separate request or wire-level update protocol.
    - Keep the Codex projection narrow: `/status` needs the effective limit,
    current usage, remaining percentage, and reset timestamp.
    - Render the monthly row through the existing progress-bar renderer,
    with one optional detail line for `8,000 of 25,000 credits used`.
    - Keep the backend response optional so existing accounts and older
    usage states preserve their current behavior.
    - Preserve cached monthly metadata when sparse rolling notifications
    omit it. Live account-usage reads remain authoritative and can clear a
    removed limit.
    
    ## Visual evidence
    
    ```text
     Monthly credit limit:   [██████████████░░░░░░] 68% left (resets 07:08 on 7 May)
                             8,000 of 25,000 credits used
    ```
    
    Snapshot:
    `codex-rs/tui/src/status/snapshots/codex_tui__status__tests__status_snapshot_includes_enterprise_monthly_credit_limit.snap`
    
    ## Testing
    
    Tests: generated app-server schema verification, protocol tests,
    backend-client tests, app-server integration coverage, TUI snapshot
    coverage, formatting, and workspace lint cleanup.
  • app-server: remove experimental persist_extended_history bool flag (#25712)
    ## Summary
    
    Remove the dead experimental `persistExtendedHistory` app-server flag
    and collapse rollout persistence to the single policy app-server already
    used.
    
    ## What Changed
    
    - Removed `persistExtendedHistory` from v2 thread start/resume/fork
    params and deleted its deprecation notice path.
    - Removed the persistence-mode enums and plumbing through core, rollout,
    and thread-store.
    - Made rollout filtering mode-free, keeping the existing limited
    persisted-history behavior.
    
    ## Test Plan
    
    - `just write-app-server-schema`
    - `cargo nextest run --no-fail-fast -p codex-app-server-protocol
    schema_fixtures`
    - `cargo nextest run --no-fail-fast -p codex-app-server
    thread_shell_command_history_responses_exclude_persisted_command_executions`
    - `cargo nextest run --no-fail-fast -p codex-rollout -p
    codex-thread-store`
    - final `rg` for removed flag/type names
  • [codex-rs] auto-review model override (#23767)
    ## Why
    
    Guardian auto-review normally uses the provider-preferred review model
    when one is available. Some parent models need model-catalog metadata to
    select a different review model while keeping older `/models` payloads
    compatible when that metadata is absent.
    
    ## What changed
    
    - Added optional `ModelInfo::auto_review_model_override` metadata to the
    public model payload as a review-model slug.
    - Updated Guardian review model selection to prefer the catalog override
    when present, while preserving the existing provider preferred-model
    path and parent-model fallback when it is omitted.
    - Added focused Guardian coverage for override and no-override model
    selection.
    - Added an `auto_review` core integration suite test that loads override
    metadata from a remote model catalog path and asserts the strict
    auto-review `/responses` request uses the catalog-selected review model.
    - Updated existing `ModelInfo` fixtures and local catalog constructors
    for the new optional field.
    
    ## Validation
    
    - `cargo test -p codex-protocol
    model_info_defaults_availability_nux_to_none_when_omitted`
    - `cargo test -p codex-core guardian_review_uses_`
    - `cargo test -p codex-core
    remote_model_override_uses_catalog_model_for_strict_auto_review --test
    all`
    - `just fix -p codex-protocol`
    - `just fix -p codex-core`
    - `just fmt`
    - `git diff --check`
  • [codex] Consolidate shared prompts in codex-prompts (#25151)
    ## Why
    
    `codex_core` is consistently a bottleneck for incremental builds during
    iteration. The simplest fix is to make the crate smaller.
    
    ## Summary
    
    `codex-core` owns several reusable prompt renderers and static prompt
    assets, which makes the crate harder to split apart.
    
    Rename `codex-review-prompts` to `codex-prompts` and move shared review,
    goal, permissions, compaction, realtime, hierarchical AGENTS.md, and
    `apply_patch` prompts into it. Move prompt-only tests and update
    consumers and `CODEOWNERS`.
    
    ## Validation
    
    - `just test -p codex-prompts -p codex-apply-patch`
    - `just test -p codex-core prompt_caching`
    - Bazel builds for the affected crates
  • Set multi-agent v2 dogfood defaults (#25266)
    ## Summary
    - default multi-agent v2 to direct-model-only tools so code mode does
    not wrap subagent tools
    - add default root/subagent team prompts aligned with dogfood training
    assumptions
    - tighten spawn-agent model override wording to prefer the inherited
    model by default
    
    ## Tests
    - just fmt
    - just test -p codex-core
    spawn_agent_description_lists_visible_models_and_reasoning_efforts
    - just test -p codex-core
    multi_agent_v2_default_session_thread_cap_counts_root
    - just test -p codex-rollout-trace
    - just fix -p codex-core
    - just fix -p codex-rollout-trace
    
    Note: a broad just test -p codex-core run was attempted locally, but
    this sandbox produced unrelated environment failures around
    sandbox-exec, missing test_stdio_server, and realtime timeouts.
  • store and expose parent_thread_id on Threads (#25113)
    ## Why
    
    This PR
    https://github.com/openai/codex/pull/24161#discussion_r3325692763
    revealed a subagent data modeling issue, where we overloaded
    `forked_from_id` to also mean `parent_thread_id`. That's incorrect since
    guardian and review subagents can be a subagent and NOT fork the main
    thread's history.
    
    The solution here is to explicitly store a new `parent_thread_id` on
    `SessionMeta`, alongside `forked_from_id` which already exists. While
    we're at it, also expose it in the app-server protocol on the `Thread`
    object.
    
    A thread->subagent relationship and a fork of thread history are
    orthogonal concepts.
    
    ## What Changed
    
    - Added top-level `parent_thread_id` persistence on `SessionMeta` and
    runtime/session plumbing through `SessionConfiguredEvent`,
    `CodexSpawnArgs`, `SessionConfiguration`, `ThreadConfigSnapshot`,
    `TurnContext`, and `ModelClient`.
    - Made turn metadata, request headers, analytics, and subagent-start
    events read the separate runtime/top-level parent field instead of
    deriving general parent lineage from `SessionSource` or
    `forked_from_thread_id`.
    - Passed parent lineage separately at delegated subagent, review,
    guardian, agent-job, and multi-agent spawn construction sites;
    copied-history fork lineage remains derived only from `InitialHistory`.
    - Persisted and exposed parent lineage through rollout/thread-store
    projections and app-server v2 `Thread.parentThreadId`.
    - Updated app-server README text and regenerated app-server schema
    fixtures for the additive `parentThreadId` response field.
  • [codex] Wait for MCP readiness in core integration tests (#24964)
    Ensures MCP-backed `codex-core` integration tests exercise initialized
    servers instead of racing server startup.
    
    I've been idly investigating a few flakes and the failure modes are much
    more confusing when a tool call fails because of a failed server start
    than when the failed server start causes the test to fail directly.
  • [codex] Add model tool mode selector (#25031)
    ## Why
    Some models need to select their code-execution behavior through model
    catalog metadata. Models without that metadata must continue to follow
    the existing `CodeMode` and `CodeModeOnly` feature flags, including when
    a newer server sends an enum value this client does not recognize.
    
    ## What changed
    - add optional `ModelInfo.tool_mode` metadata with `direct`,
    `code_mode`, and `code_mode_only`
    - treat omitted and unknown wire values as `None`
    - resolve `None` from the existing feature flags
    - carry the resolved `ToolMode` directly on `TurnContext`, outside
    `Config`
    - use the resolved value for turn creation, model switches, review
    turns, tool planning, and code execution
    
    ## Coverage
    - add protocol coverage for omitted, known, and unknown enum values
    - add focused coverage for flag fallback and explicit metadata
    overriding feature flags
    - add core integration coverage that fetches remote model metadata
    through `/v1/models` and verifies the outbound `/responses` tools for
    explicit `direct` and `code_mode_only` selectors
    
    ## Stack
    - followed by #25032
  • [codex] Improve built-in tool schema docs (#24794)
    ## Summary
    - Clarify default, omission, and bounded behavior across built-in tool
    schemas, including unified exec, classic shell, Code Mode exec/wait,
    multi-agent, agent job, MCP resource, image, goal, plan, tool_search,
    and test-sync fields.
    - Convert update_plan status to an enum and add short field descriptions
    where the schema previously relied on surrounding context.
    - Remove the dedicated permission-approval schema test and keep only
    updates to existing expected-spec tests.
    
    ## Validation
    - Ran `just fmt`.
    - Ran `git diff --check`.
    - Did not run clippy or tests, per request.
    
    Regression has been eval
    [here](https://openai.slack.com/archives/C09GDSP1J9X/p1779905065496949)
    and we proved there are no regressions
  • fix: preserve deny-read sandboxing for safe commands (#23943)
    ## Why
    
    Permission profiles can mark filesystem entries as unreadable with
    `deny` rules, including glob patterns. Several shell execution paths
    treated known-safe commands or execpolicy `allow` rules as sufficient to
    run outside the filesystem sandbox. That is not valid for read-capable
    commands: for example, `cat` or `ls` may be reasonable to allow
    generally, but dropping the sandbox would also drop deny-read
    constraints such as `**/*.env`.
    
    ## What changed
    
    - Added a shared check that treats active deny-read restrictions as
    incompatible with unsandboxed execution.
    - Kept first-attempt execution sandboxed for explicit escalation and
    execpolicy allow bypasses when deny-read entries are present.
    - Prevented no-sandbox retry after a sandbox denial when the active
    filesystem policy contains deny-read entries.
    - Updated the zsh-fork execve path so prefix-rule `allow` decisions
    continue inside the current sandbox when deny-read restrictions are
    active.
    
    ## Verification
    
    - `cargo test -p codex-core tools::sandboxing::tests`
    - `cargo test -p codex-core
    tools::runtimes::shell::unix_escalation::tests`
    - `cargo test -p codex-core
    shell_command_enforces_glob_deny_read_policy`
  • windows-sandbox: pass workspace roots to runner (#24108)
    ## Why
    
    #23813 switches the Windows sandbox runner path to `PermissionProfile`,
    but it still left one runtime anchor for resolving symbolic
    `:workspace_roots` entries. That is not enough once a turn has multiple
    effective workspace roots: exact entries and deny globs under
    `:workspace_roots` need to be materialized for every runtime root before
    the command runner chooses token mode or builds ACL plans.
    
    ## What Changed
    
    - Replaces the Windows runner/setup `permission_profile_cwd` plumbing
    with `workspace_roots: Vec<AbsolutePathBuf>`.
    - Resolves Windows-local `PermissionProfile` data with
    `materialize_project_roots_with_workspace_roots(...)` instead of the
    single-cwd helper.
    - Threads `Config::effective_workspace_roots()` through core execution,
    unified exec, TUI setup/read-grant flows, app-server setup, app-server
    `command/exec`, and `debug sandbox` on Windows.
    - Preserves those workspace roots through the zsh-fork escalation
    executor instead of rebuilding them from `sandbox_policy_cwd`.
    - Makes `ExecRequest::new(...)` and the remaining
    `build_exec_request(...)` helper path take
    `windows_sandbox_workspace_roots` explicitly so new call sites cannot
    silently fall back to `vec![cwd]`.
    - Clarifies the `debug sandbox` non-Windows comment: remaining
    cwd-dependent resolution still uses `sandbox_policy_cwd`, while
    `:workspace_roots` entries are already materialized from config roots.
    - Updates elevated runner IPC `SpawnRequest` to send `workspace_roots`
    and bumps the framed IPC protocol version to `3` for the payload shape
    change.
    - Adds Windows-local resolver coverage for expanding exact and glob
    `:workspace_roots` entries across multiple roots, plus core helper
    coverage proving explicit roots are preserved.
    
    ## Verification
    
    - `cargo check -p codex-windows-sandbox -p codex-core -p codex-tui -p
    codex-cli -p codex-app-server`
    - `cargo test -p codex-windows-sandbox`
    - `cargo test -p codex-core windows_sandbox`
    - `cargo test -p codex-core unix_escalation`
    - `cargo test -p codex-app-server windows_sandbox`
    - `cargo test -p codex-tui windows_sandbox`
    - `cargo test -p codex-cli debug_sandbox`
    - `just test -p codex-core unified_exec`
    - `just test -p codex-core
    build_exec_request_preserves_windows_workspace_roots`
    - `env -u CODEX_NETWORK_PROXY_ACTIVE -u
    CODEX_NETWORK_ALLOW_LOCAL_BINDING just test -p codex-app-server --lib
    command_exec`
    - `just test -p codex-windows-sandbox`
    - `just test -p codex-exec sandbox`
    - `just fix -p codex-core -p codex-app-server -p codex-windows-sandbox`
    
    A local macOS cross-check with `cargo check --target
    x86_64-pc-windows-msvc ...` did not reach crate Rust code because native
    dependencies require Windows SDK headers (`windows.h` / `assert.h`) in
    this environment; Windows CI remains the real target validation.
    
    Two local targeted filters compile but do not run assertions on macOS:
    `env -u CODEX_NETWORK_PROXY_ACTIVE -u CODEX_NETWORK_ALLOW_LOCAL_BINDING
    just test -p codex-app-server --lib command_exec_processor` matched zero
    tests, and `just test -p codex-linux-sandbox landlock` matched zero
    tests because the landlock suite is Linux-only.
  • Surface filesystem permission profiles in prompt context (#23924)
    ## Summary
    Some permission profiles can encode filesystem reads that should remain
    unavailable to the agent. Before this change, the model-visible context
    and automatic approval review prompt summarized the effective
    permissions as a legacy sandbox mode, which can omit permission-profile
    filesystem entries from escalation decisions.
    
    For example, a profile can grant workspace access while denying a
    private subtree across every workspace root:
    
    ```toml
    default_permissions = "restricted-workspace"
    
    [permissions.restricted-workspace.workspace_roots]
    "/Users/alice/project" = true
    "/Users/alice/other-project" = true
    
    [permissions.restricted-workspace.filesystem]
    ":minimal" = "read"
    
    [permissions.restricted-workspace.filesystem.":workspace_roots"]
    "." = "write"
    "private" = "deny"
    "private/**" = "deny"
    ```
    
    The context window now describes the workspace roots and effective
    filesystem side of the `PermissionProfile` directly, with deny entries
    marked as non-escalatable:
    
    ```xml
    <environment_context>
      <cwd>/Users/alice/project</cwd>
      <shell>zsh</shell>
      <filesystem><workspace_roots><root>/Users/alice/project</root><root>/Users/alice/other-project</root></workspace_roots><permission_profile type="managed"><file_system type="restricted"><entry access="read"><special>:minimal</special></entry><entry access="write"><path>/Users/alice/project</path></entry><entry access="write"><path>/Users/alice/other-project</path></entry><entry access="deny" escalatable="false"><path>/Users/alice/project/private</path></entry><entry access="deny" escalatable="false"><path>/Users/alice/other-project/private</path></entry><entry access="deny" escalatable="false"><glob>/Users/alice/project/private/**</glob></entry><entry access="deny" escalatable="false"><glob>/Users/alice/other-project/private/**</glob></entry></file_system></permission_profile></filesystem>
    </environment_context>
    ```
    
    Managed requirements can impose the same kind of deny-read restriction:
    
    ```toml
    [permissions.filesystem]
    deny_read = [
      "/Users/alice/project/private",
      "/Users/alice/project/private/**",
    ]
    ```
    
    The automatic approval review prompt also receives the parent turn's
    denied-read context, so review decisions can account for the active
    permission profile.
    
    ## What Changed
    - Render the effective filesystem profile in `<environment_context>`,
    including profile type, filesystem entries, workspace roots, and
    non-escalatable deny entries.
    - Persist effective `workspace_roots` in `TurnContextItem` so
    resumed/replayed context does not have to bind `:workspace_roots`
    through legacy `cwd` fallback.
    - Add explicit permission instructions that denied reads are policy
    restrictions, not escalation targets.
    - Pass the parent turn's denied-read context into automatic approval
    reviews.
    - Add targeted coverage for prompt rendering, workspace-root
    materialization, replay context, and review prompt context.
    - Keep the prompt-context test expectations platform-aware so the same
    filesystem rendering assertions pass on Unix and Windows paths.
    
    ## Testing
    - `just test -p codex-core
    context::environment_context::tests::serialize_environment_context_with_full_filesystem_profile`
    - `just test -p codex-core
    context::environment_context::tests::turn_context_item_filesystem_uses_workspace_roots_instead_of_cwd`
    - `just test -p codex-core
    context::permissions_instructions::permissions_instructions_tests::builds_permissions_from_profile_with_denied_reads`
    - `just fix -p codex-core`
    
    I also attempted `just test -p codex-core`; the changed prompt-context
    tests passed, but the full local run did not complete cleanly in this
    sandboxed macOS environment due unrelated user-shell `CODEX_SANDBOX*`
    expectations and integration-test timeouts.
  • [codex] Add user input client ids (#24653)
    ## Summary
    
    Adds an optional `clientId` field to app-server v2 `UserInput` and
    carries it through the core `UserInput` model so clients can correlate
    echoed user input items without relying on payload equality.
    
    ## Details
    
    - Adds `client_id: Option<String>` to core `UserInput` variants.
    - Exposes the v2 app-server field as `clientId` on the wire and in
    generated TypeScript.
    - Preserves the id when converting between app-server v2 and core
    protocol types.
    - Regenerates app-server schema fixtures.
    
    ## Validation
    
    - `just fmt`
    - `just write-app-server-schema`
    - `cargo test -p codex-app-server-protocol`
    - `cargo test -p codex-protocol`
    - `just fix -p codex-app-server-protocol`
    - `just fix -p codex-protocol`
    - `git diff --check`
  • runtime: prepend zsh fork bin dir to PATH (#23768)
    ## Why
    
    #23756 makes packaged Codex builds include and default to the bundled
    zsh fork. The important reason to put that fork's directory at the front
    of `PATH` is to keep executable-level escalation working after a command
    leaves the original shell and later re-enters zsh through `env`.
    
    The expected chain is:
    
    1. The zsh fork runs the top-level shell command.
    2. That command launches another program, such as `python3`, while
    inheriting the `EXEC_WRAPPER` environment and the escalation socket fd.
    3. That program spawns a shell script whose shebang is `#!/usr/bin/env
    zsh` rather than `#!/bin/zsh`, and it does not close the escalation fd.
    4. `/usr/bin/env` resolves `zsh` through `PATH`, so it must find the
    packaged zsh fork before the system zsh.
    5. Commands inside that nested script are intercepted by the zsh fork
    and can still request escalation from Codex.
    
    If `PATH` resolves `zsh` to the system shell instead, the nested script
    loses zsh-fork exec interception. Commands that should request
    escalation can then run only in the original sandbox, or fail there,
    without Codex ever receiving the approval request.
    
    Shell snapshots make this slightly more subtle: a snapshot can restore
    an older `PATH` after the child shell starts. This PR treats the zsh
    fork `PATH` prepend as an explicit environment override so snapshot
    wrapping preserves it.
    
    ## What Changed
    
    - Added shared zsh-fork runtime helpers that prepend the configured zsh
    executable parent directory to `PATH` without duplicate entries.
    - Applied the zsh fork `PATH` prepend to both zsh-fork `shell_command`
    launches and unified-exec zsh-fork launches before sandbox command
    construction.
    - Kept the shell-command zsh-fork backend API narrow: it derives the
    configured zsh path from session services and rebuilds its sandbox
    environment from `req.env`, rather than accepting a second, competing
    environment map or a separately threaded bin dir.
    - Kept Unix-only zsh-fork `PATH` mutation out of Windows clippy-visible
    mutability.
    - Added coverage for duplicate `PATH` entries, for preserving the zsh
    fork prepend through shell snapshot wrapping, and for the nested
    `python3` -> `#!/usr/bin/env zsh` escalation flow.
    
    ## Testing
    
    - `just fmt`
    - `just fix -p codex-core`
    
    I left final test validation to CI after the latest review-comment
    cleanup. Before that cleanup, `just test -p codex-core zsh_fork` passed
    locally for the zsh-fork-focused tests.
  • [codex] Remove redundant SQLite dynamic tool storage (#24819)
    ## Why
    
    Dynamic tools are defined at thread start and already stored in rollout
    `SessionMeta`, which restores resumed and forked sessions. Persisting
    the same tools through SQLite creates a second runtime persistence path
    that is unnecessary prework for the explicit namespace refactor.
    
    ## What changed
    
    - Restore missing thread-start dynamic tools directly from rollout
    history, including when SQLite is enabled.
    - Remove SQLite dynamic-tool reads, writes, backfill, and thread
    metadata patch plumbing.
    - Add SQLite-enabled resume integration coverage that verifies a
    rollout-defined dynamic tool is still sent after resume.
    
    ## Compatibility
    
    The existing `thread_dynamic_tools` table is intentionally not dropped
    even though it's now unused. Older Codex binaries are allowed to open
    databases migrated by newer binaries and still reference this table;
    dropping it would break that mixed-version path. See
    [here](https://github.com/openai/codex/blob/main/codex-rs/state/src/migrations.rs#L10-L11).
    
    ## Verification
    
    - `just test -p codex-state -p codex-rollout -p codex-thread-store`
    - `just test -p codex-core --test all
    resume_restores_dynamic_tools_from_rollout_with_sqlite_enabled`
  • [codex] add compaction metadata to turn headers (#24368)
    ## Summary
    - Add `request_kind` values for foreground turn, startup prewarm,
    compaction, and detached memory model requests.
    - Attach compaction dispatch metadata to local Responses, legacy
    `/v1/responses/compact`, and remote v2 compact requests.
    - Add the existing logical context-window identifier as `window_id` on
    turn-owned model request metadata.
    - Keep identity fields optional for detached memory requests, while
    still emitting `request_kind="memory"` in non-git/no-sandbox workspaces.
    
    ## Root Cause
    `x-codex-turn-metadata` has more than one producer. Foreground turns and
    compaction requests own a real turn and should carry that turn identity.
    Detached memory stage-one requests do not own a foreground turn, so
    absent identity fields are valid rather than missing data. Startup
    websocket prewarm is also a model request, but it has `generate=false`
    and must not be counted as a foreground turn.
    
    `thread_source` or session source identifies where a thread came from
    (for example review, guardian, or another subagent). `request_kind`
    identifies what the current outbound model request is doing (`turn`,
    `prewarm`, `compaction`, or `memory`). A review or guardian thread can
    issue either a normal turn request or a compaction request, so source
    cannot replace request kind.
    
    ## Behavior / Impact
    - Ordinary foreground requests send `request_kind="turn"`, their real
    identity fields, and `window_id="<thread_id>:<window_generation>"`.
    - Startup websocket warmup requests send `request_kind="prewarm"` so
    they are not counted as foreground turns.
    - Compaction requests send `request_kind="compaction"`, their real
    owning turn identity, the existing `window_id`, and
    `compaction.{trigger,reason,implementation,phase,strategy}`.
    - Detached memory stage-one requests send `request_kind="memory"`
    without `session_id`, `thread_id`, `turn_id`, or `window_id`; when no
    workspace metadata exists, the kind-only header is still emitted.
    - `session_id`, `thread_id`, `turn_id`, and `window_id` remain optional
    in the header schema because detached memory requests do not own a
    foreground turn or context window.
    - `window_id` is not a new ID system: it is copied from the already-sent
    `x-codex-window-id` / WS client metadata value at model-request dispatch
    time.
    - Existing `x-codex-window-id` HTTP/WS emission, value format,
    generation advancement, resume behavior, and fork reset behavior are
    unchanged.
    - `request_kind`, `window_id`, and upstream turn-owned identity fields
    remain schema-owned; input `responsesapi_client_metadata` cannot replace
    their canonical values.
    - No table, DAG, export, app-server API, or MCP `_meta` schema changes
    are included.
    
    A compaction attempt stopped by a pre-compact hook issues no model
    request and therefore has no request header; its outcome remains in
    analytics events. Status, error, duration, and token deltas also remain
    analytics fields rather than request-header fields.
    
    Future detached-memory attribution using a real initiating turn ID as
    `trigger_turn_id` is intentionally not part of this PR.
    
    ## Sync With Main
    - Final pushed head `716342e79` is rebased onto `origin/main@0d37db4b2`.
    - The metadata conflict came from upstream `#24160`, which added
    `forked_from_thread_id` on the same `turn_metadata` surface. Resolution
    preserves that field and its protection from client metadata override
    alongside this PR's request-kind, compaction, and window-id fields.
    - While resolving the overlapping commits, I removed an accidental
    recursive model-request overlay and a duplicate detached-memory header
    builder before completing the rebase.
    
    ## Latency / User Experience Boundary
    - Foreground turns perform no new filesystem, git, or network work. New
    fields are inserted into metadata already serialized for outgoing
    requests.
    - Compaction issues the same model/HTTP requests with the same prompt,
    model, service tier, and sampling settings; only metadata bytes change.
    - Startup prewarm already sent metadata; it is now correctly classified
    as `prewarm`.
    - Non-git detached memory now sends a small kind-only metadata header
    rather than no header.
    - This client diff adds no user-visible latency mechanism beyond
    negligible serialization and header bytes on already-existing requests.
    
    ## Validation
    On conflict-resolved head `1d35c2cfb` based on `origin/main@487521733`:
    - `just fmt` (passed)
    - `just fix -p codex-core` (passed)
    - `git diff --check origin/main...HEAD` (passed)
    - `just test -p codex-core -E 'test(turn_metadata) |
    test(websocket_first_turn_uses_startup_prewarm_and_create) |
    test(responses_stream_includes_turn_metadata_header_for_git_workspace_e2e)
    |
    test(responses_websocket_forwards_turn_metadata_on_initial_and_incremental_create)
    | test(remote_compact_v2_retries_failures_with_stream_retry_budget) |
    test(window_id_advances_after_compact_persists_on_resume_and_resets_on_fork)'`
    (`23 passed`; `bench-smoke` passed)
    - `just test -p codex-app-server -E
    'test(turn_start_forwards_client_metadata_to_responses_request_v2) |
    test(turn_start_forwards_client_metadata_to_responses_websocket_request_body_v2)
    | test(auto_compaction_remote_emits_started_and_completed_items)'` (`3
    passed`; `bench-smoke` passed)
    - `just test -p codex-memories-write` (`29 passed`; `bench-smoke`
    passed)
  • Fix guardian review test user input (#24746)
    ## Summary
    - Add the missing additional_context field to the guardian review
    Op::UserInput test initializer.
    
    ## Test plan
    - just fmt
    - just test -p codex-core guardian_review
    - just test -p codex-core (compiles, then fails on local environment
    issues: sandbox-exec Operation not permitted, missing test_stdio_server
    helper binary, and unrelated timeouts)
  • fix(auto-review) skip legacy notify for auto review threads (#24714)
    ## Summary
    Clear inherited legacy `notify` from Guardian review session config,
    since we should not be passing auto review threads into `notify`
    targets. Keeps legacy notify payload and hook runtime behavior unchanged
    for normal user turns.
    
    ## Testing
    - [x] add a Guardian config regression and dedicated Guardian
    integration test so review sessions cannot inherit parent notify hooks
  • Uprev Rust toolchain pins to 1.95.0 (#24684)
    ## Summary
    - Bump the workspace Rust toolchain from `1.93.0` to `1.95.0` across
    Cargo, Bazel, CI, release workflows, devcontainers, and the Codex
    environment config.
    - Refresh `MODULE.bazel.lock` so the Bazel Rust toolchain artifacts
    match the new version.
    - Leave purpose-specific toolchains unchanged, including the
    `argument-comment-lint` nightly and the upstream `rusty_v8` `1.91.0`
    build pin.
    - Includes fixes for new lints from `just fix` and a few codex-authored
    fixes for lints without a suggestion.
  • [codex] remove plain image wrapper spans (#24652)
    ## Why
    
    Remote image submissions currently wrap native `input_image` spans in
    literal `<image>` and `</image>` text spans. Those extra prompt tokens
    add structure without providing label or routing information.
    
    ## What Changed
    
    - Serialize `UserInput::Image` directly as an `input_image` content
    span.
    - Preserve named local-image framing and legacy wrapper parsing for
    labeled attachments and existing histories.
    - Update existing request-shape expectations for drag-and-drop images,
    model switching, and compaction.
    
    ## Validation
    
    - `just test -p codex-protocol`
    - Focused `codex-core` run covering
    `drag_drop_image_persists_rollout_request_shape`,
    `model_change_from_image_to_text_strips_prior_image_content`, and
    `snapshot_request_shape_pre_turn_compaction_including_incoming_user_message`
    
    ## Notes
    
    - A broader `just test -p codex-core` run was attempted; the affected
    tests passed, while the overall run failed in unrelated CLI, MCP, and
    tooling tests plus a `thread_manager` timeout.