Commit Graph

82 Commits

  • [app-server] add fuzzyFileSearch/sessionCompleted (#11773)
    this is to allow the client to know when to stop showing a spinner.
  • Add cwd as an optional field to thread/list (#11651)
    Add's the ability to filter app-server thread/list by cwd
  • [apps] Add is_enabled to app info. (#11417)
    - [x] Add is_enabled to app info and the response of `app/list`.
    - [x] Update TUI to have Enable/Disable button on the app detail page.
  • feat(app-server): experimental flag to persist extended history (#11227)
    This PR adds an experimental `persist_extended_history` bool flag to
    app-server thread APIs so rollout logs can retain a richer set of
    EventMsgs for non-lossy Thread > Turn > ThreadItems reconstruction (i.e.
    on `thread/resume`).
    
    ### Motivation
    Today, our rollout recorder only persists a small subset (e.g. user
    message, reasoning, assistant message) of `EventMsg` types, dropping a
    good number (like command exec, file change, etc.) that are important
    for reconstructing full item history for `thread/resume`, `thread/read`,
    and `thread/fork`.
    
    Some clients want to be able to resume a thread without lossiness. This
    lossiness is primarily a UI thing, since what the model sees are
    `ResponseItem` and not `EventMsg`.
    
    ### Approach
    This change introduces an opt-in `persist_full_history` flag to preserve
    those events when you start/resume/fork a thread (defaults to `false`).
    
    This is done by adding an `EventPersistenceMode` to the rollout
    recorder:
    - `Limited` (existing behavior, default)
    - `Extended` (new opt-in behavior)
    
    In `Extended` mode, persist additional `EventMsg` variants needed for
    non-lossy app-server `ThreadItem` reconstruction. We now store the
    following ThreadItems that we didn't before:
    - web search
    - command execution
    - patch/file changes
    - MCP tool calls
    - image view calls
    - collab tool outcomes
    - context compaction
    - review mode enter/exit
    
    For **command executions** in particular, we truncate the output using
    the existing `truncate_text` from core to store an upper bound of 10,000
    bytes, which is also the default value for truncating tool outputs shown
    to the model. This keeps the size of the rollout file and command
    execution items returned over the wire reasonable.
    
    And we also persist `EventMsg::Error` which we can now map back to the
    Turn's status and populates the Turn's error metadata.
    
    #### Updates to EventMsgs
    To truly make `thread/resume` non-lossy, we also needed to persist the
    `status` on `EventMsg::CommandExecutionEndEvent` and
    `EventMsg::PatchApplyEndEvent`. Previously it was not obvious whether a
    command failed or was declined (similar for apply_patch). These
    EventMsgs were never persisted before so I made it a required field.
  • Reapply "Add app-server transport layer with websocket support" (#11370)
    Reapply "Add app-server transport layer with websocket support" with
    additional fixes from https://github.com/openai/codex/pull/11313/changes
    to avoid deadlocking.
    
    This reverts commit 47356ff83c.
    
    ## Summary
    
    To avoid deadlocking when queues are full, we maintain separate tokio
    tasks dedicated to incoming vs outgoing event handling
    - split the app-server main loop into two tasks in
    `run_main_with_transport`
       - inbound handling (`transport_event_rx`)
       - outbound handling (`outgoing_rx` + `thread_created_rx`)
    - separate incoming and outgoing websocket tasks
    
    ## Validation
    
    Integration tests, testing thoroughly e2e in codex app w/ >10 concurrent
    requests
    
    <img width="1365" height="979" alt="Screenshot 2026-02-10 at 2 54 22 PM"
    src="https://github.com/user-attachments/assets/47ca2c13-f322-4e5c-bedd-25859cbdc45f"
    />
    
    ---------
    
    Co-authored-by: jif-oai <jif@openai.com>
  • feat: opt-out of events in the app-server (#11319)
    Add `optOutNotificationMethods` in the app-server to opt-out events
    based on exact method matching
  • [apps] Add thread_id param to optionally load thread config for apps feature check. (#11279)
    - [x] Add thread_id param to optionally load thread config for apps
    feature check
  • feat: do not close unified exec processes across turns (#10799)
    With this PR we do not close the unified exec processes (i.e. background
    terminals) at the end of a turn unless:
    * The user interrupt the turn
    * The user decide to clean the processes through `app-server` or
    `/clean`
    
    I made sure that `codex exec` correctly kill all the processes
  • [apps] Improve app loading. (#10994)
    There are two concepts of apps that we load in the harness:
    
    - Directory apps, which is all the apps that the user can install.
    - Accessible apps, which is what the user actually installed and can be
    $ inserted and be used by the model. These are extracted from the tools
    that are loaded through the gateway MCP.
    
    Previously we wait for both sets of apps before returning the full apps
    list. Which causes many issues because accessible apps won't be
    available to the UI or the model if directory apps aren't loaded or
    failed to load.
    
    In this PR we are separating them so that accessible apps can be loaded
    separately and are instantly available to be shown in the UI and to be
    provided in model context. We also added an app-server event so that
    clients can subscribe to also get accessible apps without being blocked
    on the full app list.
    
    - [x] Separate accessible apps and directory apps loading.
    - [x] `app/list` request will also emit `app/list/updated` notifications
    that app-server clients can subscribe. Which allows clients to get
    accessible apps list to render in the $ menu without being blocked by
    directory apps.
    - [x] Cache both accessible and directory apps with 1 hour TTL to avoid
    reloading them when creating new threads.
    - [x] TUI improvements to redraw $ menu and /apps menu when app list is
    updated.
  • app-server: treat null mode developer instructions as built-in defaults (#10983)
    ## Summary
    - make `turn/start` normalize
    `collaborationMode.settings.developer_instructions: null` to the
    built-in instructions for the selected mode
    - prevent app-server clients from accidentally clearing mode-switch
    developer instructions by sending `null`
    - document this behavior in the v2 protocol and app-server docs
    
    ## What changed
    - `codex-rs/app-server/src/codex_message_processor.rs`
      - added a small `normalize_turn_start_collaboration_mode` helper
      - in `turn_start`, apply normalization before `OverrideTurnContext`
    - `codex-rs/app-server/tests/suite/v2/turn_start.rs`
    - extended `turn_start_accepts_collaboration_mode_override_v2` to assert
    the outgoing request includes default-mode instruction text when the
    client sends `developer_instructions: null`
    - `codex-rs/app-server-protocol/src/protocol/v2.rs`
    - clarified `TurnStartParams.collaboration_mode` docs:
    `settings.developer_instructions: null` means use built-in mode
    instructions
    - regenerated schema fixture:
    - `codex-rs/app-server-protocol/schema/typescript/v2/TurnStartParams.ts`
    - docs:
      - `codex-rs/app-server/README.md`
      - `codex-rs/docs/codex_mcp_interface.md`
  • feat(core): add network constraints schema to requirements.toml (#10958)
    ## Summary
    
    Add `requirements.toml` schema support for admin-defined network
    constraints in the requirements layer
    
    example config:
    
    ```
    [experimental_network]
    enabled = true
    allowed_domains = ["api.openai.com"]
    denied_domains = ["example.com"]
    ```
  • Add resume_agent collab tool (#10903)
    Summary
    - add the new resume_agent collab tool path through core, protocol, and
    the app server API, including the resume events
    - update the schema/TypeScript definitions plus docs so resume_agent
    appears in generated artifacts and README
    - note that resumed agents rehydrate rollout history without overwriting
    their base instructions
    
    Testing
    - Not run (not requested)
  • feat: add support for allowed_web_search_modes in requirements.toml (#10964)
    This PR makes it possible to disable live web search via an enterprise
    config even if the user is running in `--yolo` mode (though cached web
    search will still be available). To do this, create
    `/etc/codex/requirements.toml` as follows:
    
    ```toml
    # "live" is not allowed; "disabled" is allowed even though not listed explicitly.
    allowed_web_search_modes = ["cached"]
    ```
    
    Or set `requirements_toml_base64` MDM as explained on
    https://developers.openai.com/codex/security/#locations.
    
    ### Why
    - Enforce admin/MDM/`requirements.toml` constraints on web-search
    behavior, independent of user config and per-turn sandbox defaults.
    - Ensure per-turn config resolution and review-mode overrides never
    crash when constraints are present.
    
    ### What
    - Add `allowed_web_search_modes` to requirements parsing and surface it
    in app-server v2 `ConfigRequirements` (`allowedWebSearchModes`), with
    fixtures updated.
    - Define a requirements allowlist type (`WebSearchModeRequirement`) and
    normalize semantics:
      - `disabled` is always implicitly allowed (even if not listed).
      - An empty list is treated as `["disabled"]`.
    - Make `Config.web_search_mode` a `Constrained<WebSearchMode>` and apply
    requirements via `ConstrainedWithSource<WebSearchMode>`.
    - Update per-turn resolution (`resolve_web_search_mode_for_turn`) to:
    - Prefer `Live → Cached → Disabled` when
    `SandboxPolicy::DangerFullAccess` is active (subject to requirements),
    unless the user preference is explicitly `Disabled`.
    - Otherwise, honor the user’s preferred mode, falling back to an allowed
    mode when necessary.
    - Update TUI `/debug-config` and app-server mapping to display
    normalized `allowed_web_search_modes` (including implicit `disabled`).
    - Fix web-search integration tests to assert cached behavior under
    `SandboxPolicy::ReadOnly` (since `DangerFullAccess` legitimately prefers
    `live` when allowed).
  • feat(app-server): turn/steer API (#10821)
    This PR adds a dedicated `turn/steer` API for appending user input to an
    in-flight turn.
    
    ## Motivation
    Currently, steering in the app is implemented by just calling
    `turn/start` while a turn is running. This has some really weird quirks:
    - Client gets back a new `turn.id`, even though streamed
    events/approvals remained tied to the original active turn ID.
    - All the various turn-level override params on `turn/start` do not
    apply to the "steer", and would only apply to the next real turn.
    - There can also be a race condition where the client thinks the turn is
    active but the server has already completed it, so there might be bugs
    if the client has baked in some client-specific behavior thinking it's a
    steer when in fact the server kicked off a new turn. This is
    particularly possible when running a client against a remote app-server.
    
    Having a dedicated `turn/steer` API eliminates all those quirks.
    
    `turn/steer` behavior:
    - Requires an active turn on threadId. Returns a JSON-RPC error if there
    is no active turn.
    - If expectedTurnId is provided, it must match the active turn (more
    useful when connecting to a remote app-server).
    - Does not emit `turn/started`.
    - Does not accept turn overrides (`cwd`, `model`, `sandbox`, etc.) or
    `outputSchema` to accurately reflect that these are not applied when
    steering.
  • Add stage field for experimental flags. (#10793)
    - [x] Add stage field for experimental flags.
  • Add app-server transport layer with websocket support (#10693)
    - Adds --listen <URL> to codex app-server with two listen modes:
          - stdio:// (default, existing behavior)
          - ws://IP:PORT (new websocket transport)
      - Refactors message routing to be connection-aware:
    - Tracks per-connection session state (initialize/experimental
    capability)
          - Routes responses/errors to the originating connection
    - Broadcasts server notifications/requests to initialized connections
    - Updates initialization semantics to be per connection (not
    process-global), and updates app-server docs accordingly.
    - Adds websocket accept/read/write handling (JSON-RPC per text frame,
    ping/pong handling, connection lifecycle events).
    
    Testing
    
    - Unit tests for transport URL parsing and targeted response/error
    routing.
      - New websocket integration test validating:
          - per-connection initialization requirements
          - no cross-connection response leakage
          - same request IDs on different connections route independently.
  • [app-server] Add a method to list experimental features. (#10721)
    - [x] Add a method to list experimental features.
  • chore(app-server): document experimental API opt-in (#10667)
    Add a section on how to opt in to the experimental API.
  • feat(app-server, core): allow text + image content items for dynamic tool outputs (#10567)
    Took over the work that @aaronl-openai started here:
    https://github.com/openai/codex/pull/10397
    
    Now that app-server clients are able to set up custom tools (called
    `dynamic_tools` in app-server), we should expose a way for clients to
    pass in not just text, but also image outputs. This is something the
    Responses API already supports for function call outputs, where you can
    pass in either a string or an array of content outputs (text, image,
    file):
    https://platform.openai.com/docs/api-reference/responses/create#responses_create-input-input_item_list-item-function_tool_call_output-output-array-input_image
    
    So let's just plumb it through in Codex (with the caveat that we only
    support text and image for now). This is implemented end-to-end across
    app-server v2 protocol types and core tool handling.
    
    ## Breaking API change
    NOTE: This introduces a breaking change with dynamic tools, but I think
    it's ok since this concept was only recently introduced
    (https://github.com/openai/codex/pull/9539) and it's better to get the
    API contract correct. I don't think there are any real consumers of this
    yet (not even the Codex App).
    
    Old shape:
    `{ "output": "dynamic-ok", "success": true }`
    
    New shape:
    ```
    {
        "contentItems": [
          { "type": "inputText", "text": "dynamic-ok" },
          { "type": "inputImage", "imageUrl": "data:image/png;base64,AAA" }
        ]
      "success": true
    }
    ```
  • add none personality option (#10688)
    - add none personality enum value and empty placeholder behavior\n- add
    docs/schema updates and e2e coverage
  • Add thread/compact v2 (#10445)
    - add `thread/compact` as a trigger-only v2 RPC that submits
    `Op::Compact` and returns `{}` immediately.
    - add v2 compaction e2e coverage for success and invalid/unknown thread
    ids, and update protocol schemas/docs.
  • Feat: add upgrade to app server modelList (#10556)
    ### Summary
    * Add model upgrade to listModel app server endpoint to support
    dynamically show model upgrade banner.
  • feat: add APIs to list and download public remote skills (#10448)
    Add API to list / download from remote public skills
  • feat: add --experimental to generate-ts (#10402)
    Adding a `--experimental` flag to the `generate-ts` fct in the
    app-sever.
    
    It can be called through one of those 2 command
    ```
    just write-app-server-schema --experimental
    codex app-server generate-ts --experimental
    ```
  • feat: experimental flags (#10231)
    ## Problem being solved
    - We need a single, reliable way to mark app-server API surface as
    experimental so that:
      1. the runtime can reject experimental usage unless the client opts in
    2. generated TS/JSON schemas can exclude experimental methods/fields for
    stable clients.
    
    Right now that’s easy to drift or miss when done ad-hoc.
    
    ## How to declare experimental methods and fields
    - **Experimental method**: add `#[experimental("method/name")]` to the
    `ClientRequest` variant in `client_request_definitions!`.
    - **Experimental field**: on the params struct, derive `ExperimentalApi`
    and annotate the field with `#[experimental("method/name.field")]` + set
    `inspect_params: true` for the method variant so
    `ClientRequest::experimental_reason()` inspects params for experimental
    fields.
    
    ## How the macro solves it
    - The new derive macro lives in
    `codex-rs/codex-experimental-api-macros/src/lib.rs` and is used via
    `#[derive(ExperimentalApi)]` plus `#[experimental("reason")]`
    attributes.
    - **Structs**:
    - Generates `ExperimentalApi::experimental_reason(&self)` that checks
    only annotated fields.
      - The “presence” check is type-aware:
        - `Option<T>`: `is_some_and(...)` recursively checks inner.
        - `Vec`/`HashMap`/`BTreeMap`: must be non-empty.
        - `bool`: must be `true`.
        - Other types: considered present (returns `true`).
    - Registers each experimental field in an `inventory` with `(type_name,
    serialized field name, reason)` and exposes `EXPERIMENTAL_FIELDS` for
    that type. Field names are converted from `snake_case` to `camelCase`
    for schema/TS filtering.
    - **Enums**:
    - Generates an exhaustive `match` returning `Some(reason)` for annotated
    variants and `None` otherwise (no wildcard arm).
    - **Wiring**:
    - Runtime gating uses `ExperimentalApi::experimental_reason()` in
    `codex-rs/app-server/src/message_processor.rs` to reject requests unless
    `InitializeParams.capabilities.experimental_api == true`.
    - Schema/TS export filters use the inventory list and
    `EXPERIMENTAL_CLIENT_METHODS` from `client_request_definitions!` to
    strip experimental methods/fields when `experimental_api` is false.
  • add missing fields to WebSearchAction and update app-server types (#10276)
    - add `WebSearchAction` to app-server v2 types
    - add `queries` to `WebSearchAction::Search` type
    
    Updated tests.
  • Add enforce_residency to requirements (#10263)
    Add `enforce_residency` to requirements.toml and thread it through to a
    header on `default_client`.
  • Plan mode: stream proposed plans, emit plan items, and render in TUI (#9786)
    ## Summary
    - Stream proposed plans in Plan Mode using `<proposed_plan>` tags parsed
    in core, emitting plan deltas plus a plan `ThreadItem`, while stripping
    tags from normal assistant output.
    - Persist plan items and rebuild them on resume so proposed plans show
    in thread history.
    - Wire plan items/deltas through app-server protocol v2 and render a
    dedicated proposed-plan view in the TUI, including the “Implement this
    plan?” prompt only when a plan item is present.
    
    ## Changes
    
    ### Core (`codex-rs/core`)
    - Added a generic, line-based tag parser that buffers each line until it
    can disprove a tag prefix; implements auto-close on `finish()` for
    unterminated tags. `codex-rs/core/src/tagged_block_parser.rs`
    - Refactored proposed plan parsing to wrap the generic parser.
    `codex-rs/core/src/proposed_plan_parser.rs`
    - In plan mode, stream assistant deltas as:
      - **Normal text** → `AgentMessageContentDelta`
      - **Plan text** → `PlanDelta` + `TurnItem::Plan` start/completion  
      (`codex-rs/core/src/codex.rs`)
    - Final plan item content is derived from the completed assistant
    message (authoritative), not necessarily the concatenated deltas.
    - Strips `<proposed_plan>` blocks from assistant text in plan mode so
    tags don’t appear in normal messages.
    (`codex-rs/core/src/stream_events_utils.rs`)
    - Persist `ItemCompleted` events only for plan items for rollout replay.
    (`codex-rs/core/src/rollout/policy.rs`)
    - Guard `update_plan` tool in Plan Mode with a clear error message.
    (`codex-rs/core/src/tools/handlers/plan.rs`)
    - Updated Plan Mode prompt to:  
      - keep `<proposed_plan>` out of non-final reasoning/preambles  
      - require exact tag formatting  
      - allow only one `<proposed_plan>` block per turn  
      (`codex-rs/core/templates/collaboration_mode/plan.md`)
    
    ### Protocol / App-server protocol
    - Added `TurnItem::Plan` and `PlanDeltaEvent` to core protocol items.
    (`codex-rs/protocol/src/items.rs`, `codex-rs/protocol/src/protocol.rs`)
    - Added v2 `ThreadItem::Plan` and `PlanDeltaNotification` with
    EXPERIMENTAL markers and note that deltas may not match the final plan
    item. (`codex-rs/app-server-protocol/src/protocol/v2.rs`)
    - Added plan delta route in app-server protocol common mapping.
    (`codex-rs/app-server-protocol/src/protocol/common.rs`)
    - Rebuild plan items from persisted `ItemCompleted` events on resume.
    (`codex-rs/app-server-protocol/src/protocol/thread_history.rs`)
    
    ### App-server
    - Forward plan deltas to v2 clients and map core plan items to v2 plan
    items. (`codex-rs/app-server/src/bespoke_event_handling.rs`,
    `codex-rs/app-server/src/codex_message_processor.rs`)
    - Added v2 plan item tests.
    (`codex-rs/app-server/tests/suite/v2/plan_item.rs`)
    
    ### TUI
    - Added a dedicated proposed plan history cell with special background
    and padding, and moved “• Proposed Plan” outside the highlighted block.
    (`codex-rs/tui/src/history_cell.rs`, `codex-rs/tui/src/style.rs`)
    - Only show “Implement this plan?” when a plan item exists.
    (`codex-rs/tui/src/chatwidget.rs`,
    `codex-rs/tui/src/chatwidget/tests.rs`)
    
    <img width="831" height="847" alt="Screenshot 2026-01-29 at 7 06 24 PM"
    src="https://github.com/user-attachments/assets/69794c8c-f96b-4d36-92ef-c1f5c3a8f286"
    />
    
    ### Docs / Misc
    - Updated protocol docs to mention plan deltas.
    (`codex-rs/docs/protocol_v1.md`)
    - Minor plumbing updates in exec/debug clients to tolerate plan deltas.
    (`codex-rs/debug-client/src/reader.rs`, `codex-rs/exec/...`)
    
    ## Tests
    - Added core integration tests:
      - Plan mode strips plan from agent messages.
      - Missing `</proposed_plan>` closes at end-of-message.  
      (`codex-rs/core/tests/suite/items.rs`)
    - Added unit tests for generic tag parser (prefix buffering, non-tag
    lines, auto-close). (`codex-rs/core/src/tagged_block_parser.rs`)
    - Existing app-server plan item tests in v2.
    (`codex-rs/app-server/tests/suite/v2/plan_item.rs`)
    
    ## Notes / Behavior
    - Plan output no longer appears in standard assistant text in Plan Mode;
    it streams via `PlanDelta` and completes as a `TurnItem::Plan`.
    - The final plan item content is authoritative and may diverge from
    streamed deltas (documented as experimental).
    - Reasoning summaries are not filtered; prompt instructs the model not
    to include `<proposed_plan>` outside the final plan message.
    
    ## Codex Author
    `codex fork 019bec2d-b09d-7450-b292-d7bcdddcdbfb`
  • Conversation naming (#8991)
    Session renaming:
    - `/rename my_session`
    - `/rename` without arg and passing an argument in `customViewPrompt`
    - AppExitInfo shows resume hint using the session name if set instead of
    uuid, defaults to uuid if not set
    - Names are stored in `CODEX_HOME/sessions.jsonl`
    
    Session resuming:
    - codex resume <name> lookup for `CODEX_HOME/sessions.jsonl` first entry
    matching the name and resumes the session
    
    ---------
    
    Co-authored-by: jif-oai <jif@openai.com>
  • feat(app-server): support external auth mode (#10012)
    This enables a new use case where `codex app-server` is embedded into a
    parent application that will directly own the user's ChatGPT auth
    lifecycle, which means it owns the user’s auth tokens and refreshes it
    when necessary. The parent application would just want a way to pass in
    the auth tokens for codex to use directly.
    
    The idea is that we are introducing a new "auth mode" currently only
    exposed via app server: **`chatgptAuthTokens`** which consist of the
    `id_token` (stores account metadata) and `access_token` (the bearer
    token used directly for backend API calls). These auth tokens are only
    stored in-memory. This new mode is in addition to the existing `apiKey`
    and `chatgpt` auth modes.
    
    This PR reuses the shape of our existing app-server account APIs as much
    as possible:
    - Update `account/login/start` with a new `chatgptAuthTokens` variant,
    which will allow the client to pass in the tokens and have codex
    app-server use them directly. Upon success, the server emits
    `account/login/completed` and `account/updated` notifications.
    - A new server->client request called
    `account/chatgptAuthTokens/refresh` which the server can use whenever
    the access token previously passed in has expired and it needs a new one
    from the parent application.
    
    I leveraged the core 401 retry loop which typically triggers auth token
    refreshes automatically, but made it pluggable:
    - **chatgpt** mode refreshes internally, as usual.
    - **chatgptAuthTokens** mode calls the client via
    `account/chatgptAuthTokens/refresh`, the client responds with updated
    tokens, codex updates its in-memory auth, then retries. This RPC has a
    10s timeout and handles JSON-RPC errors from the client.
    
    Also some additional things:
    - chatgpt logins are blocked while external auth is active (have to log
    out first. typically clients will pick one OR the other, not support
    both)
    - `account/logout` clears external auth in memory
    - Ensures that if `forced_chatgpt_workspace_id` is set via the user's
    config, we respect it in both:
    - `account/login/start` with `chatgptAuthTokens` (returns a JSON-RPC
    error back to the client)
    - `account/chatgptAuthTokens/refresh` (fails the turn, and on next
    request app-server will send another `account/chatgptAuthTokens/refresh`
    request to the client).
  • [connectors] Support connectors part 2 - slash command and tui (#9728)
    - [x] Support `/apps` slash command to browse the apps in tui.
    - [x] Support inserting apps to prompt using `$`.
    - [x] Lots of simplification/renaming from connectors to apps.
  • compaction (#10034)
    # External (non-OpenAI) Pull Request Requirements
    
    Before opening this Pull Request, please read the dedicated
    "Contributing" markdown file or your PR may be closed:
    https://github.com/openai/codex/blob/main/docs/contributing.md
    
    If your PR conforms to our contribution guidelines, replace this text
    with a detailed and high quality description of your changes.
    
    Include a link to a bug report or enhancement request.
  • Add thread/unarchive to restore archived rollouts (#9843)
    ## Summary
    - Adds a new `thread/unarchive` RPC to move archived thread rollouts
    back into the active `sessions/` tree.
    
    ## What changed
    - **Protocol**
      - Adds `thread/unarchive` request/response types and wiring.
    - **Server**
      - Implements `thread_unarchive` in the app server.
      - Validates the archived rollout path and thread ID.
    - Restores the rollout to `sessions/YYYY/MM/DD/...` based on the rollout
    filename timestamp.
    - **Core**
    - Adds `find_archived_thread_path_by_id_str` helper for archived
    rollouts.
    - **Docs**
      - Documents the new RPC and usage example.
    - **Tests**
      - Adds an end-to-end server test that:
        1) starts a thread,
        2) archives it,
        3) unarchives it,
        4) asserts the file is restored to `sessions/`.
    
    ## How to use
    ```json
    { "method": "thread/unarchive", "id": 24, "params": { "threadId": "<thread-id>" } }
    ```
    
    ## Author Codex Session
    
    `codex resume 019bf158-54b6-7960-a696-9d85df7e1bc1` (soon I'll make this
    kind of session UUID forkable by anyone with the right
    `session_object_storage_url` line in their config, but for now just
    pasting it here for my reference)
  • feat: dynamic tools injection (#9539)
    ## Summary
    Add dynamic tool injection to thread startup in API v2, wire dynamic
    tool calls through the app server to clients, and plumb responses back
    into the model tool pipeline.
    
    ### Flow (high level)
    - Thread start injects `dynamic_tools` into the model tool list for that
    thread (validation is done here).
    - When the model emits a tool call for one of those names, core raises a
    `DynamicToolCallRequest` event.
    - The app server forwards it to the client as `item/tool/call`, waits
    for the client’s response, then submits a `DynamicToolResponse` back to
    core.
    - Core turns that into a `function_call_output` in the next model
    request so the model can continue.
    
    ### What changed
    - Added dynamic tool specs to v2 thread start params and protocol types;
    introduced `item/tool/call` (request/response) for dynamic tool
    execution.
    - Core now registers dynamic tool specs at request time and routes those
    calls via a new dynamic tool handler.
    - App server validates tool names/schemas, forwards dynamic tool call
    requests to clients, and publishes tool outputs back into the session.
    - Integration tests
  • feat(app-server) Expose personality (#9674)
    ### Motivation
    Exposes a per-thread / per-turn `personality` override in the v2
    app-server API so clients can influence model communication style at
    thread/turn start. Ensures the override is passed into the session
    configuration resolution so it becomes effective for subsequent turns
    and headless runners.
    
    ### Testing
    - [x] Add an integration-style test
    `turn_start_accepts_personality_override_v2` in
    `codex-rs/app-server/tests/suite/v2/turn_start.rs` that verifies a
    `/personality` override results in a developer update message containing
    `<personality_spec>` in the outbound model request.
    
    ------
    [Codex
    Task](https://chatgpt.com/codex/tasks/task_i_6971d646b1c08322a689a54d2649f3fe)
  • [connectors] Support connectors part 1 - App server & MCP (#9667)
    In order to make Codex work with connectors, we add a built-in gateway
    MCP that acts as a transparent proxy between the client and the
    connectors. The gateway MCP collects actions that are accessible to the
    user and sends them down to the user, when a connector action is chosen
    to be called, the client invokes the action through the gateway MCP as
    well.
    
     - [x] Add the system built-in gateway MCP to list and run connectors.
     - [x] Add the app server methods and protocol
  • Chore: add cmd related info to exec approval request (#9659)
    ### Summary
    We now rely purely on `item/commandExecution/requestApproval` item to
    render pending approval in VSCE and app. With v2 approach, it does not
    include the actual cmd that it is attempting and therefore we can only
    use `proposedExecpolicyAmendment` to render which can be incomplete.
    
    ### Reproduce
    * Add `prefix_rule(pattern=["echo"], decision="prompt")` to your
    `~/.codex/rules.default.rules`.
    * Ask to `Run  echo "approval-test" please` in VSCE or app. 
    * The pending approval protal does show up but with no content
    
    #### Example screenshot
    <img width="3434" height="3648" alt="Screenshot 2026-01-21 at 8 23
    25 PM"
    src="https://github.com/user-attachments/assets/75644837-21f1-40f8-8b02-858d361ff817"
    />
    
    #### Sample output
    ```
      {"method":"item/commandExecution/requestApproval","id":0,"params":{
        "threadId":"019be439-5a90-7600-a7ea-2d2dcc50302a",
        "turnId":"0",
        "itemId":"call_usgnQ4qEX5U9roNdjT7fPzhb",
        "reason":"`/bin/zsh -lc 'echo \"testing\"'` requires approval by policy",
        "proposedExecpolicyAmendment":null
      }}
    
    ```
    
    ### Fix
    Inlude `command` string, `cwd` and `command_actions` in
    `CommandExecutionRequestApprovalParams` so that consumers can display
    the correct command instead of relying on exec policy output.
  • Update skills/list protocol readme (#9623)
    Updates readme example for `skills/list` to reflect latest response
    spec.
  • Feat: request user input tool (#9472)
    ### Summary
    * Add `requestUserInput` tool that the model can use for gather
    feedback/asking question mid turn.
    
    
    ### Tool input schema
    ```
    {
      "$schema": "http://json-schema.org/draft-07/schema#",
      "title": "requestUserInput input",
      "type": "object",
      "additionalProperties": false,
      "required": ["questions"],
      "properties": {
        "questions": {
          "type": "array",
          "description": "Questions to show the user (1-3). Prefer 1 unless multiple independent decisions block progress.",
          "minItems": 1,
          "maxItems": 3,
          "items": {
            "type": "object",
            "additionalProperties": false,
            "required": ["id", "header", "question"],
            "properties": {
              "id": {
                "type": "string",
                "description": "Stable identifier for mapping answers (snake_case)."
              },
              "header": {
                "type": "string",
                "description": "Short header label shown in the UI (12 or fewer chars)."
              },
              "question": {
                "type": "string",
                "description": "Single-sentence prompt shown to the user."
              },
              "options": {
                "type": "array",
                "description": "Optional 2-3 mutually exclusive choices. Put the recommended option first and suffix its label with \"(Recommended)\". Only include \"Other\" option if we want to include a free form option. If the question is free form in nature, do not include any option.",
                "minItems": 2,
                "maxItems": 3,
                "items": {
                  "type": "object",
                  "additionalProperties": false,
                  "required": ["value", "label", "description"],
                  "properties": {
                    "value": {
                      "type": "string",
                      "description": "Machine-readable value (snake_case)."
                    },
                    "label": {
                      "type": "string",
                      "description": "User-facing label (1-5 words)."
                    },
                    "description": {
                      "type": "string",
                      "description": "One short sentence explaining impact/tradeoff if selected."
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
    ```
    
    ### Tool output schema
    ```
    {
      "$schema": "http://json-schema.org/draft-07/schema#",
      "title": "requestUserInput output",
      "type": "object",
      "additionalProperties": false,
      "required": ["answers"],
      "properties": {
        "answers": {
          "type": "object",
          "description": "Map of question id to user answer.",
          "additionalProperties": {
            "type": "object",
            "additionalProperties": false,
            "required": ["selected"],
            "properties": {
              "selected": {
                "type": "array",
                "items": { "type": "string" }
              },
              "other": {
                "type": ["string", "null"]
              }
            }
          }
        }
      }
    }
    ```
  • Expose collaboration presets (#9421)
    Expose collaboration presets for clients
    
    ---------
    
    Co-authored-by: Josh McKinney <joshka@openai.com>
  • Support enable/disable skill via config/api. (#9328)
    In config.toml:
    ```
    [[skills.config]]
    path = "/Users/xl/.codex/skills/my_skill/SKILL.md"
    enabled = false
    ```
    
    API:
    skills/list, skills/config/write
  • feat(app-server, core): return threads by created_at or updated_at (#9247)
    Add support for returning threads by either `created_at` OR `updated_at`
    descending. Previously core always returned threads ordered by
    `created_at`.
    
    This PR:
    - updates core to be able to list threads by `updated_at` OR
    `created_at` descending based on what the caller wants
    - also update `thread/list` in app-server to expose this (default to
    `created_at` if not specified)
    
    All existing codepaths (app-server, TUI) still default to `created_at`,
    so no behavior change is expected with this PR.
    
    **Implementation**
    To sort by `updated_at` is a bit nontrivial (whereas `created_at` is
    easy due to the way we structure the folders and filenames on disk,
    which are all based on `created_at`).
    
    The most naive way to do this without introducing a cache file or sqlite
    DB (which we have to implement/maintain) is to scan files in reverse
    `created_at` order on disk, and look at the file's mtime (last modified
    timestamp according to the filesystem) until we reach `MAX_SCAN_FILES`
    (currently set to 10,000). Then, we can return the most recent N
    threads.
    
    Based on some quick and dirty benchmarking on my machine with ~1000
    rollout files, calling `thread/list` with limit 50, the `updated_at`
    path is slower as expected due to all the I/O:
    - updated-at: average 103.10 ms
    - created-at: average 41.10 ms
    
    Those absolute numbers aren't a big deal IMO, but we can certainly
    optimize this in a followup if needed by introducing more state stored
    on disk.
    
    **Caveat**
    There's also a limitation in that any files older than `MAX_SCAN_FILES`
    will be excluded, which means if a user continues a REALLY old thread,
    it's possible to not be included. In practice that should not be too big
    of an issue.
    
    If a user makes...
    - 1000 rollouts/day → threads older than 10 days won't show up
    - 100 rollouts/day → ~100 days
    
    If this becomes a problem for some reason, even more motivation to
    implement an updated_at cache.
  • feat: hot reload mcp servers (#8957)
    ### Summary
    * Added `mcpServer/refresh` command to inform app servers and active
    threads to refresh mcpServer on next turn event.
    * Added `pending_mcp_server_refresh_config` to codex core so that if the
    value is populated, we reinitialize the mcp server manager on the thread
    level.
    * The config is updated on `mcpServer/refresh` command which we iterate
    through threads and provide with the latest config value after last
    write.