Commit Graph

259 Commits

  • core: bundle settings diff updates into one dev/user envelope (#12417)
    ## Summary
    - bundle contextual prompt injection into at most one developer message
    plus one contextual user message in both:
      - per-turn settings updates
      - initial context insertion
    - preserve `<model_switch>` across compaction by rebuilding it through
    canonical initial-context injection, instead of relying on
    strip/reattach hacks
    - centralize contextual user fragment detection in one shared definition
    table and reuse it for parsing/compaction logic
    - keep `AGENTS.md` in its natural serialized format:
      - `# AGENTS.md instructions for {dirname}`
      - `<INSTRUCTIONS>...</INSTRUCTIONS>`
    - simplify related tests/helpers and accept the expected snapshot/layout
    updates from bundled multi-part messages
    
    ## Why
    The goal is to converge toward a simpler, more intentional prompt shape
    where contextual updates are consistently represented as one developer
    envelope plus one contextual user envelope, while keeping parsing and
    compaction behavior aligned with that representation.
    
    ## Notable details
    - the temporary `SettingsUpdateEnvelope` wrapper was removed; these
    paths now return `Vec<ResponseItem>` directly
    - local/remote compaction no longer rely on model-switch strip/restore
    helpers
    - contextual user detection is now driven by shared fragment definitions
    instead of ad hoc matcher assembly
    - AGENTS/user instructions are still the same logical context; only the
    synthetic `<user_instructions>` wrapper was replaced by the natural
    AGENTS text format
    
    ## Testing
    - `just fmt`
    - `cargo test -p codex-app-server
    codex_message_processor::tests::extract_conversation_summary_prefers_plain_user_messages
    -- --exact`
    - `cargo test -p codex-core
    compact::tests::collect_user_messages_filters_session_prefix_entries
    --lib -- --exact`
    - `cargo test -p codex-core --test all
    'suite::compact::snapshot_request_shape_pre_turn_compaction_strips_incoming_model_switch'
    -- --exact`
    - `cargo test -p codex-core --test all
    'suite::compact_remote::snapshot_request_shape_remote_pre_turn_compaction_strips_incoming_model_switch'
    -- --exact`
    - `cargo test -p codex-core --test all
    'suite::client::includes_apps_guidance_as_developer_message_when_enabled'
    -- --exact`
    - `cargo test -p codex-core --test all
    'suite::client::includes_developer_instructions_message_in_request' --
    --exact`
    - `cargo test -p codex-core --test all
    'suite::client::includes_user_instructions_message_in_request' --
    --exact`
    - `cargo test -p codex-core --test all
    'suite::client::resume_includes_initial_messages_and_sends_prior_items'
    -- --exact`
    - `cargo test -p codex-core --test all
    'suite::review::review_input_isolated_from_parent_history' -- --exact`
    - `cargo test -p codex-exec --test all
    'suite::resume::exec_resume_last_respects_cwd_filter_and_all_flag' --
    --exact`
    - `cargo test -p core_test_support
    context_snapshot::tests::full_text_mode_preserves_unredacted_text --
    --exact`
    
    ## Notes
    - I also ran several targeted `compact`, `compact_remote`,
    `prompt_caching`, `model_visible_layout`, and `event_mapping` tests
    while iterating on prompt-shape changes.
    - I have not claimed a clean full-workspace `cargo test` from this
    environment because local sandbox/resource conditions have previously
    produced unrelated failures in large workspace runs.
  • Enforce user input length cap (#12823)
    Currently there is no bound on the length of a user message submitted in
    the TUI or through the app server interface. That means users can paste
    many megabytes of text, which can lead to bad performance, hangs, and
    crashes. In extreme cases, it can lead to a [kernel
    panic](https://github.com/openai/codex/issues/12323).
    
    This PR limits the length of a user input to 2**20 (about 1M)
    characters. This value was chosen because it fills the entire context
    window on the latest models, so accepting longer inputs wouldn't make
    sense anyway.
    
    Summary
    - add a shared `MAX_USER_INPUT_TEXT_CHARS` constant in codex-protocol
    and surface it in TUI and app server code
    - block oversized submissions in the TUI submit flow and emit error
    history cells when validation fails
    - reject heavy app-server requests with JSON-RPC `-32602` and structured
    `input_too_large` data, plus document the behavior
    
    Testing
    - ran the IDE extension with this change and verified that when I
    attempt to paste a user message that's several MB long, it correctly
    reports an error instead of crashing or making my computer hot.
  • Revert "Add skill approval event/response (#12633)" (#12811)
    This reverts commit https://github.com/openai/codex/pull/12633. We no
    longer need this PR, because we favor sending normal exec command
    approval server request with `additional_permissions` of skill
    permissions instead
  • Enable request_user_input in Default mode (#12735)
    ## Summary
    - allow `request_user_input` in Default collaboration mode as well as
    Plan
    - update the Default-mode instructions to prefer assumptions first and
    use `request_user_input` only when a question is unavoidable
    - update request_user_input and app-server tests to match the new
    Default-mode behavior
    - refactor collaboration-mode availability plumbing into
    `CollaborationModesConfig` for future mode-related flags
    
    ## Codex author
    `codex resume 019c9124-ed28-7c13-96c6-b916b1c97d49`
  • Revert "Ensure shell command skills trigger approval (#12697)" (#12721)
    This reverts commit daf0f03ac8.
    
    # 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.
  • feat(app-server): thread/unsubscribe API (#10954)
    Adds a new v2 app-server API for a client to be able to unsubscribe to a
    thread:
    - New RPC method: `thread/unsubscribe`
    - New server notification: `thread/closed`
    
    Today clients can start/resume/archive threads, but there wasn’t a way
    to explicitly unload a live thread from memory without archiving it.
    With `thread/unsubscribe`, a client can indicate it is no longer
    actively working with a live Thread. If this is the only client
    subscribed to that given thread, the thread will be automatically closed
    by app-server, at which point the server will send `thread/closed` and
    `thread/status/changed` with `status: notLoaded` notifications.
    
    This gives clients a way to prevent long-running app-server processes
    from accumulating too many thread (and related) objects in memory.
    
    Closed threads will also be removed from `thread/loaded/list`.
  • make 5.3-codex visible in cli for api users (#12808)
    5.3-codex released in api, mark it visible for API users via bundled
    `models.json`.
  • fix: harden zsh fork tests and keep subcommand approvals deterministic (#12809)
    ## Why
    The prior
    `turn_start_shell_zsh_fork_subcommand_decline_marks_parent_declined_v2`
    assertion was brittle under Bazel: command approval payloads in the test
    could include environment-dependent wrapper/command formatting
    differences, which makes exact command-string matching flaky even when
    behavior is correct.
    
    (This regression was knowingly introduced in
    https://github.com/openai/codex/pull/12800, but it was urgent to land
    that PR.)
    
    ## What changed
    - Hardened
    `turn_start_shell_zsh_fork_subcommand_decline_marks_parent_declined_v2`
    in
    [`turn_start_zsh_fork.rs`](https://github.com/openai/codex/blob/main/codex-rs/app-server/tests/suite/v2/turn_start_zsh_fork.rs):
    - Replaced strict `approval_command.starts_with("/bin/rm")` checks with
    intent-based subcommand matching.
    - Subcommand approvals are now recognized by file-target semantics
    (`first.txt` or `second.txt`) plus `rm` intent.
    - Parent approval recognition is now more tolerant of command-format
    differences while still requiring a definitive parent command context.
    - Uses a defensive loop that waits for all target subcommand decisions
    and the parent approval request.
    - Preserved the existing regression and unit test fixes from earlier
    commits in `unix_escalation.rs` and `skill_approval.rs`.
    
    ## Verification
    - Ran the zsh fork subcommand decline regression under this change:
    -
    `turn_start_shell_zsh_fork_subcommand_decline_marks_parent_declined_v2`
    - Confirmed the test is now robust against approval-command-string
    variation instead of hardcoding one expected command shape.
  • feat(app-server): add ThreadItem::DynamicToolCall (#12732)
    Previously, clients would call `thread/start` with dynamic_tools set,
    and when a model invokes a dynamic tool, it would just make the
    server->client `item/tool/call` request and wait for the client's
    response to complete the tool call. This works, but it doesn't have an
    `item/started` or `item/completed` event.
    
    Now we are doing this:
    - [new] emit `item/started` with `DynamicToolCall` populated with the
    call arguments
    - send an `item/tool/call` server request
    - [new] once the client responds, emit `item/completed` with
    `DynamicToolCall` populated with the response.
    
    Also, with `persistExtendedHistory: true`, dynamic tool calls are now
    reconstructable in `thread/read` and `thread/resume` as
    `ThreadItem::DynamicToolCall`.
  • Add app-server v2 thread realtime API (#12715)
    Add experimental `thread/realtime/*` v2 requests and notifications, then
    route app-server realtime events through that thread-scoped surface with
    integration coverage.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • feat: add search term to thread list (#12578)
    Add `searchTerm` to `thread/list` that will search for a match in the
    titles (the condition being `searchTerm` $$\in$$ `title`)
  • feat: add service name to app-server (#12319)
    Add service name to the app-server so that the app can use it's own
    service name
    
    This is on thread level because later we might plan the app-server to
    become a singleton on the computer
  • codex-rs/app-server: graceful websocket restart on Ctrl-C (#12517)
    ## Summary
    - add graceful websocket app-server restart on Ctrl-C by draining until
    no assistant turns are running
    - stop the websocket acceptor and disconnect existing connections once
    the drain condition is met
    - add a websocket integration test that verifies Ctrl-C waits for an
    in-flight turn before exit
    
    ## Verification
    - `cargo check -p codex-app-server --quiet`
    - `cargo test -p codex-app-server --test all
    suite::v2::connection_handling_websocket`
    - I (maxj) tested remote and local Codex.app
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Agent jobs (spawn_agents_on_csv) + progress UI (#10935)
    ## Summary
    - Add agent job support: spawn a batch of sub-agents from CSV, auto-run,
    auto-export, and store results in SQLite.
    - Simplify workflow: remove run/resume/get-status/export tools; spawn is
    deterministic and completes in one call.
    - Improve exec UX: stable, single-line progress bar with ETA; suppress
    sub-agent chatter in exec.
    
    ## Why
    Enables map-reduce style workflows over arbitrarily large repos using
    the existing Codex orchestrator. This addresses review feedback about
    overly complex job controls and non-deterministic monitoring.
    
    ## Demo (progress bar)
    ```
    ./codex-rs/target/debug/codex exec \
      --enable collab \
      --enable sqlite \
      --full-auto \
      --progress-cursor \
      -c agents.max_threads=16 \
      -C /Users/daveaitel/code/codex \
      - <<'PROMPT'
    Create /tmp/agent_job_progress_demo.csv with columns: path,area and 30 rows:
    path = item-01..item-30, area = test.
    
    Then call spawn_agents_on_csv with:
    - csv_path: /tmp/agent_job_progress_demo.csv
    - instruction: "Run `python - <<'PY'` to sleep a random 0.3–1.2s, then output JSON with keys: path, score (int). Set score = 1."
    - output_csv_path: /tmp/agent_job_progress_demo_out.csv
    PROMPT
    ```
    
    ## Review feedback addressed
    - Auto-start jobs on spawn; removed run/resume/status/export tools.
    - Auto-export on success.
    - More descriptive tool spec + clearer prompts.
    - Avoid deadlocks on spawn failure; pending/running handled safely.
    - Progress bar no longer scrolls; stable single-line redraw.
    
    ## Tests
    - `cd codex-rs && cargo test -p codex-exec`
    - `cd codex-rs && cargo build -p codex-cli`
  • Ensure shell command skills trigger approval (#12697)
    Summary
    - detect skill-invoking shell commands based on the original command
    string, request approvals when needed, and cache positive decisions per
    session
    - keep implicit skill invocation emitted after approval and keep skill
    approval decline messaging centralized to the shell handler
    - expand and adjust skill approval tests to cover shell-based skill
    scripts while matching the new detection expectations
    
    Testing
    - Not run (not requested)
  • feat: run zsh fork shell tool via shell-escalation (#12649)
    ## Why
    
    This PR switches the `shell_command` zsh-fork path over to
    `codex-shell-escalation` so the new shell tool can use the shared
    exec-wrapper/escalation protocol instead of the `zsh_exec_bridge`
    implementation that was introduced in
    https://github.com/openai/codex/pull/12052. `zsh_exec_bridge` relied on
    UNIX domain sockets, which is not as tamper-proof as the FD-based
    approach in `codex-shell-escalation`.
    
    ## What Changed
    
    - Added a Unix zsh-fork runtime adapter in `core`
    (`core/src/tools/runtimes/shell/unix_escalation.rs`) that:
    - runs zsh-fork commands through
    `codex_shell_escalation::run_escalate_server`
      - bridges exec-policy / approval decisions into `ShellActionProvider`
    - executes escalated commands via a `ShellCommandExecutor` that calls
    `process_exec_tool_call`
    - Updated `ShellRuntime` / `ShellCommandHandler` / tool spec wiring to
    select a `shell_command` backend (`classic` vs `zsh-fork`) while leaving
    the generic `shell` tool path unchanged.
    - Removed the `zsh_exec_bridge`-based session service and deleted
    `core/src/zsh_exec_bridge/mod.rs`.
    - Moved exec-wrapper entrypoint dispatch to `arg0` by handling the
    `codex-execve-wrapper` arg0 alias there, and removed the old
    `codex_core::maybe_run_zsh_exec_wrapper_mode()` hooks from `cli` and
    `app-server` mains.
    - Added the needed `codex-shell-escalation` dependencies for `core` and
    `arg0`.
    
    ## Tests
    
    - `cargo test -p codex-core
    shell_zsh_fork_prefers_shell_command_over_unified_exec`
    - `cargo test -p codex-app-server turn_start_shell_zsh_fork --
    --nocapture`
    - verifies zsh-fork command execution and approval flows through the new
    backend
    - includes subcommand approve/decline coverage using the shared zsh
    DotSlash fixture in `app-server/tests/suite/zsh`
    - To test manually, I added the following to `~/.codex/config.toml`:
    
    ```toml
    zsh_path = "/Users/mbolin/code/codex3/codex-rs/app-server/tests/suite/zsh"
    
    [features]
    shell_zsh_fork = true
    ```
    
    Then I ran `just c` to run the dev build of Codex with these changes and
    sent it the message:
    
    ```
    run `echo $0`
    ```
    
    And it replied with:
    
    ```
      echo $0 printed:
    
      /Users/mbolin/code/codex3/codex-rs/app-server/tests/suite/zsh
    
      In this tool context, $0 reflects the script path used to invoke the shell, not just zsh.
    ```
    
    so the tool appears to be wired up correctly.
    
    ## Notes
    
    - The zsh subcommand-decline integration test now uses `rm` under a
    `WorkspaceWrite` sandbox. The previous `/usr/bin/true` scenario is
    auto-allowed by the new `shell-escalation` policy path, which no longer
    produces subcommand approval prompts.
  • feat(core) Introduce Feature::RequestPermissions (#11871)
    ## Summary
    Introduces the initial implementation of Feature::RequestPermissions.
    RequestPermissions allows the model to request that a command be run
    inside the sandbox, with additional permissions, like writing to a
    specific folder. Eventually this will include other rules as well, and
    the ability to persist these permissions, but this PR is already quite
    large - let's get the core flow working and go from there!
    
    <img width="1279" height="541" alt="Screenshot 2026-02-15 at 2 26 22 PM"
    src="https://github.com/user-attachments/assets/0ee3ec0f-02ec-4509-91a2-809ac80be368"
    />
    
    ## Testing
    - [x] Added tests
    - [x] Tested locally
    - [x] Feature
  • chore: rm hardcoded PRESETS list (#12650)
    rm `PRESETS` list harcoded in `model_presets` as we now have bundled
    `models.json` with equivalent info.
    
    update logic to rely on bundled models instead, update tests.
  • Add skill approval event/response (#12633)
    Set the stage for skill-level permission approval in addition to
    command-level.
    
    Behind a feature flag.
  • refactor: delete exec-server and move execve wrapper into shell-escalation (#12632)
    ## Why
    
    We already plan to remove the shell-tool MCP path, and doing that
    cleanup first makes the follow-on `shell-escalation` work much simpler.
    
    This change removes the last remaining reason to keep
    `codex-rs/exec-server` around by moving the `codex-execve-wrapper`
    binary and shared shell test fixtures to the crates/tests that now own
    that functionality.
    
    ## What Changed
    
    ### Delete `codex-rs/exec-server`
    
    - Remove the `exec-server` crate, including the MCP server binary,
    MCP-specific modules, and its test support/test suite
    - Remove `exec-server` from the `codex-rs` workspace and update
    `Cargo.lock`
    
    ### Move `codex-execve-wrapper` into `codex-rs/shell-escalation`
    
    - Move the wrapper implementation into `shell-escalation`
    (`src/unix/execve_wrapper.rs`)
    - Add the `codex-execve-wrapper` binary entrypoint under
    `shell-escalation/src/bin/`
    - Update `shell-escalation` exports/module layout so the wrapper
    entrypoint is hosted there
    - Move the wrapper README content from `exec-server` to
    `shell-escalation/README.md`
    
    ### Move shared shell test fixtures to `app-server`
    
    - Move the DotSlash `bash`/`zsh` test fixtures from
    `exec-server/tests/suite/` to `app-server/tests/suite/`
    - Update `app-server` zsh-fork tests to reference the new fixture paths
    
    ### Keep `shell-tool-mcp` as a shell-assets package
    
    - Update `.github/workflows/shell-tool-mcp.yml` packaging so the npm
    artifact contains only patched Bash/Zsh payloads (no Rust binaries)
    - Update `shell-tool-mcp/package.json`, `shell-tool-mcp/src/index.ts`,
    and docs to reflect the shell-assets-only package shape
    - `shell-tool-mcp-ci.yml` does not need changes because it is already
    JS-only
    
    ## Verification
    
    - `cargo shear`
    - `cargo clippy -p codex-shell-escalation --tests`
    - `just clippy`
  • test: vendor zsh fork via DotSlash and stabilize zsh-fork tests (#12518)
    ## Why
    
    The zsh integration tests were still brittle in two ways:
    
    - they relied on `CODEX_TEST_ZSH_PATH` / environment-specific setup, so
    they often did not exercise the patched zsh fork that `shell-tool-mcp`
    ships
    - once the tests consistently used the vendored zsh fork, they exposed
    real Linux-specific zsh-fork issues in CI
    
    In particular, the Linux failures were not just test noise:
    
    - the zsh-fork launch path was dropping `ExecRequest.arg0`, so Linux
    `codex-linux-sandbox` arg0 dispatch did not run and zsh wrapper-mode
    could receive malformed arguments
    - the
    `turn_start_shell_zsh_fork_subcommand_decline_marks_parent_declined_v2`
    test uses the zsh exec bridge (which talks to the parent over a Unix
    socket), but Linux restricted sandbox seccomp denies `connect(2)`,
    causing timeouts on `ubuntu-24.04` x86/arm
    
    This PR makes the zsh tests consistently run against the intended
    vendored zsh fork and fixes/hardens the zsh-fork path so the Linux CI
    signal is meaningful.
    
    ## What Changed
    
    - Added a single shared test-only DotSlash file for the patched zsh fork
    at `codex-rs/exec-server/tests/suite/zsh` (analogous to the existing
    `bash` test resource).
    - Updated both app-server and exec-server zsh tests to use that shared
    DotSlash zsh (no duplicate zsh DotSlash file, no `CODEX_TEST_ZSH_PATH`
    dependency).
    - Updated the app-server zsh-fork test helper to resolve the shared
    DotSlash zsh and avoid silently falling back to host zsh.
    - Kept the app-server zsh-fork tests configured via `config.toml`, using
    a test wrapper path where needed to force `zsh -df` (and rewrite `-lc`
    to `-c`) for the subcommand-decline test.
    - Hardened the app-server subcommand-decline zsh-fork test for CI
    variability:
      - tolerate an extra `/responses` POST with a no-op mock response
    - tolerate non-target approval ordering while remaining strict on the
    two `/usr/bin/true` approvals and decline behavior
    - use `DangerFullAccess` on Linux for this one test because it validates
    zsh approval flow, not Linux sandbox socket restrictions
    - Fixed zsh-fork process launching on Linux by preserving `req.arg0` in
    `ZshExecBridge::execute_shell_request(...)` so `codex-linux-sandbox`
    arg0 dispatch continues to work.
    - Moved `maybe_run_zsh_exec_wrapper_mode()` under
    `arg0_dispatch_or_else(...)` in `app-server` and `cli` so wrapper-mode
    handling coexists correctly with arg0-dispatched helper modes.
    - Consolidated duplicated `dotslash -- fetch` resolution logic into
    shared test support (`core/tests/common/lib.rs`).
    - Updated `codex-rs/exec-server/tests/suite/accept_elicitation.rs` to
    use DotSlash zsh and hardened the zsh elicitation test for Bazel/zsh
    differences by:
      - resolving an absolute `git` path
      - running `git init --quiet .`
    - asserting success / `.git` creation instead of relying on banner text
    
    ## Verification
    
    - `cargo test -p codex-app-server turn_start_zsh_fork -- --nocapture`
    - `cargo test -p codex-exec-server accept_elicitation -- --nocapture`
    - `bazel test //codex-rs/exec-server:exec-server-all-test
    --test_output=streamed --test_arg=--nocapture
    --test_arg=accept_elicitation_for_prompt_rule_with_zsh`
    - CI (`rust-ci`) on the final cleaned commit: `Tests — ubuntu-24.04 -
    x86_64-unknown-linux-gnu` and `Tests — ubuntu-24.04-arm -
    aarch64-unknown-linux-gnu` passed in [run
    22291424358](https://github.com/openai/codex/actions/runs/22291424358)
  • chore: remove codex-core public protocol/shell re-exports (#12432)
    ## Why
    
    `codex-rs/core/src/lib.rs` re-exported a broad set of types and modules
    from `codex-protocol` and `codex-shell-command`. That made it easy for
    workspace crates to import those APIs through `codex-core`, which in
    turn hides dependency edges and makes it harder to reduce compile-time
    coupling over time.
    
    This change removes those public re-exports so call sites must import
    from the source crates directly. Even when a crate still depends on
    `codex-core` today, this makes dependency boundaries explicit and
    unblocks future work to drop `codex-core` dependencies where possible.
    
    ## What Changed
    
    - Removed public re-exports from `codex-rs/core/src/lib.rs` for:
    - `codex_protocol::protocol` and related protocol/model types (including
    `InitialHistory`)
      - `codex_protocol::config_types` (`protocol_config_types`)
    - `codex_shell_command::{bash, is_dangerous_command, is_safe_command,
    parse_command, powershell}`
    - Migrated workspace Rust call sites to import directly from:
      - `codex_protocol::protocol`
      - `codex_protocol::config_types`
      - `codex_protocol::models`
      - `codex_shell_command`
    - Added explicit `Cargo.toml` dependencies (`codex-protocol` /
    `codex-shell-command`) in crates that now import those crates directly.
    - Kept `codex-core` internal modules compiling by using `pub(crate)`
    aliases in `core/src/lib.rs` (internal-only, not part of the public
    API).
    - Updated the two utility crates that can already drop a `codex-core`
    dependency edge entirely:
      - `codex-utils-approval-presets`
      - `codex-utils-cli`
    
    ## Verification
    
    - `cargo test -p codex-utils-approval-presets`
    - `cargo test -p codex-utils-cli`
    - `cargo check --workspace --all-targets`
    - `just clippy`
  • test(app-server): wait for turn/completed in turn_start tests (#12376)
    ## Summary
    - switch a few app-server `turn_start` tests from
    `codex/event/task_complete` waits to `turn/completed` waits
    - avoid matching unrelated/background `task_complete` events
    - keep this flaky test fix separate from the /title feature PR
    
    ## Why
    On Windows ARM CI, these tests can return early after observing a
    generic `codex/event/task_complete` notification from another task. That
    can leave the mock Responses server with fewer calls than expected and
    fail the test with a wiremock verification mismatch.
    
    Using `turn/completed` matches the app-server turn lifecycle
    notification the tests actually care about.
    
    ## Validation
    - `cargo test -p codex-app-server
    turn_start_updates_sandbox_and_cwd_between_turns_v2 -- --nocapture`
    - `cargo test -p codex-app-server turn_start_exec_approval_ --
    --nocapture`
    - `just fmt`
  • Add field to Thread object for the latest rename set for a given thread (#12301)
    Exposes through the app server updated names set for a thread. This
    enables other surfaces to use the core as the source of truth for thread
    naming. `threadName` is gathered using the helper functions used to
    interact with `session_index.jsonl`, and is hydrated in:
    - `thread/list`
    - `thread/read`
    - `thread/resume`
    - `thread/unarchive`
    - `thread/rollback`
    
    We don't do this for `thread/start` and `thread/fork`.
  • [apps] Enforce simple logo url format. (#12374)
    - [x] Enforce simple logo url format when loading apps directory to save
    bandwidth.
  • [apps] Implement apps configs. (#12086)
    - [x] Implement apps configs.
  • feat: add nick name to sub-agents (#12320)
    Adding random nick name to sub-agents. Used for UX
    
    At the same time, also storing and wiring the role of the sub-agent
  • app-server: fix flaky list_apps_returns_connectors_with_accessible_flags test (#12286)
    ## Why
    
    `app/list` emits `app/list/updated` after whichever async load finishes
    first (directory connectors or accessible tools). This test assumed the
    directory-backed update always arrived first because it injected a tools
    delay, but that assumption is not stable when the process-global Codex
    Apps tools cache is already warm. In that case the accessible-tools path
    can return immediately and the first notification shape flips, which
    makes the assertion flaky.
    
    Relevant code paths:
    
    -
    [`codex-rs/app-server/src/codex_message_processor.rs`](https://github.com/openai/codex/blob/13ec97d72e3482f16c62e0a22025a0542133e623/codex-rs/app-server/src/codex_message_processor.rs#L4949-L5034)
    (concurrent loads + per-load `app/list/updated` notifications)
    -
    [`codex-rs/core/src/mcp_connection_manager.rs`](https://github.com/openai/codex/blob/13ec97d72e3482f16c62e0a22025a0542133e623/codex-rs/core/src/mcp_connection_manager.rs#L1182-L1197)
    (Codex Apps tools cache hit path)
    
    ## What Changed
    
    Updated
    `suite::v2::app_list::list_apps_returns_connectors_with_accessible_flags`
    in `codex-rs/app-server/tests/suite/v2/app_list.rs` to accept either
    valid first `app/list/updated` payload:
    
    - the directory-first snapshot
    - the accessible-tools-first snapshot
    
    The test still keeps the later assertions strict:
    
    - the second `app/list/updated` notification must be the fully merged
    result
    - the final `app/list` response must match the same merged result
    
    I also added an inline comment explaining why the first notification is
    intentionally order-insensitive.
    
    ## Verification
    
    - `cargo test -p codex-app-server`
  • tests: centralize in-flight turn cleanup helper (#12271)
    ## Why
    
    Several tests intentionally exercise behavior while a turn is still
    active. The cleanup sequence for those tests (`turn/interrupt` + waiting
    for `codex/event/turn_aborted`) was duplicated across files, which made
    the rationale easy to lose and the pattern easy to apply inconsistently.
    
    This change centralizes that cleanup in one place with a single
    explanatory doc comment.
    
    ## What Changed
    
    ### Added shared helper
    
    In `codex-rs/app-server/tests/common/mcp_process.rs`:
    
    - Added `McpProcess::interrupt_turn_and_wait_for_aborted(...)`.
    - Added a doc comment explaining why explicit interrupt + terminal wait
    is required for tests that intentionally leave a turn in-flight.
    
    ### Migrated call sites
    
    Replaced duplicated interrupt/aborted blocks with the helper in:
    
    - `codex-rs/app-server/tests/suite/v2/thread_resume.rs`
      - `thread_resume_rejects_history_when_thread_is_running`
      - `thread_resume_rejects_mismatched_path_when_thread_is_running`
    - `codex-rs/app-server/tests/suite/v2/turn_start_zsh_fork.rs`
      - `turn_start_shell_zsh_fork_executes_command_v2`
    -
    `turn_start_shell_zsh_fork_subcommand_decline_marks_parent_declined_v2`
    - `codex-rs/app-server/tests/suite/v2/turn_steer.rs`
      - `turn_steer_returns_active_turn_id`
    
    ### Existing cleanup retained
    
    In `codex-rs/app-server/tests/suite/v2/turn_start.rs`:
    
    - `turn_start_accepts_local_image_input` continues to explicitly wait
    for `turn/completed` so the turn lifecycle is fully drained before test
    exit.
    
    ## Verification
    
    - `cargo test -p codex-app-server`
  • tests(thread_resume): interrupt running turns in resume error-path tests (#12269)
    ## Why
    
    `thread_resume` tests can intentionally create an in-flight turn, assert
    a `thread/resume` error path, and return immediately. That leaves turn
    work active during teardown, which can surface as intermittent `LEAK`
    failures.
    
    Sample output that motivated this investigation (reported during test
    runs):
    
    ```text
    LEAK ... codex-app-server::all suite::v2::thread_resume::thread_resume_rejoins_running_thread_even_with_override_mismatch
    ```
    
    ## What Changed
    
    Updated only `codex-rs/app-server/tests/suite/v2/thread_resume.rs`:
    
    - `thread_resume_rejects_history_when_thread_is_running`
    - `thread_resume_rejects_mismatched_path_when_thread_is_running`
    
    Both tests now:
    
    1. capture the running turn id from `TurnStartResponse`
    2. assert the expected `thread/resume` error
    3. call `turn/interrupt` for that running turn
    4. wait for `codex/event/turn_aborted` before returning
    
    ## Why This Is The Correct Fix
    
    These tests are specifically validating resume behavior while a turn is
    active. They should also own cleanup of that active turn before exiting.
    Explicitly interrupting and waiting for the terminal abort notification
    removes teardown races and avoids relying on process-drop behavior to
    clean up in-flight work.
    
    ## Repro / Verification
    
    Repro command used for investigation:
    
    ```bash
    cargo nextest run -p codex-app-server -j 2 --no-fail-fast --stress-count 50 --status-level leak --final-status-level fail -E 'test(suite::v2::thread_resume::thread_resume_rejoins_running_thread_even_with_override_mismatch) | test(suite::v2::thread_resume::thread_resume_rejects_history_when_thread_is_running) | test(suite::v2::thread_resume::thread_resume_rejects_mismatched_path_when_thread_is_running) | test(suite::v2::thread_resume::thread_resume_keeps_in_flight_turn_streaming)'
    ```
    
    Observed before this change: intermittent `LEAK` in
    `thread_resume_rejects_history_when_thread_is_running`.
    
    Also verified with:
    
    - `cargo test -p codex-app-server`
    
    
    ---
    [//]: # (BEGIN SAPLING FOOTER)
    Stack created with [Sapling](https://sapling-scm.com). Best reviewed
    with [ReviewStack](https://reviewstack.dev/openai/codex/pull/12269).
    * #12271
    * __->__ #12269
  • app-server tests: reduce intermittent nextest LEAK via graceful child shutdown (#12266)
    ## Why
    `cargo nextest` was intermittently reporting `LEAK` for
    `codex-app-server` tests even when assertions passed. This adds noise
    and flakiness to local/CI signals.
    
    Sample output used as the basis of this investigation:
    
    ```text
    LEAK [   7.578s] ( 149/3663) codex-app-server::all suite::output_schema::send_user_turn_output_schema_is_per_turn_v1
    LEAK [   7.383s] ( 210/3663) codex-app-server::all suite::v2::dynamic_tools::dynamic_tool_call_round_trip_sends_text_content_items_to_model
    LEAK [   7.768s] ( 213/3663) codex-app-server::all suite::v2::dynamic_tools::thread_start_injects_dynamic_tools_into_model_requests
    LEAK [   8.841s] ( 224/3663) codex-app-server::all suite::v2::output_schema::turn_start_accepts_output_schema_v2
    LEAK [   8.151s] ( 225/3663) codex-app-server::all suite::v2::plan_item::plan_mode_uses_proposed_plan_block_for_plan_item
    LEAK [   8.230s] ( 232/3663) codex-app-server::all suite::v2::safety_check_downgrade::openai_model_header_mismatch_emits_model_rerouted_notification_v2
    LEAK [   6.472s] ( 273/3663) codex-app-server::all suite::v2::turn_start::turn_start_accepts_collaboration_mode_override_v2
    LEAK [   6.107s] ( 275/3663) codex-app-server::all suite::v2::turn_start::turn_start_accepts_personality_override_v2
    ```
    
    ## How I Reproduced
    I focused on the suspect tests and ran them under `nextest` stress mode
    with leak reporting enabled.
    
    ```bash
    cargo nextest run -p codex-app-server -j 2 --no-fail-fast --stress-count 25 --status-level leak --final-status-level fail -E 'test(suite::output_schema::send_user_turn_output_schema_is_per_turn_v1) | test(suite::v2::dynamic_tools::dynamic_tool_call_round_trip_sends_text_content_items_to_model) | test(suite::v2::dynamic_tools::thread_start_injects_dynamic_tools_into_model_requests) | test(suite::v2::output_schema::turn_start_accepts_output_schema_v2) | test(suite::v2::plan_item::plan_mode_uses_proposed_plan_block_for_plan_item) | test(suite::v2::safety_check_downgrade::openai_model_header_mismatch_emits_model_rerouted_notification_v2) | test(suite::v2::turn_start::turn_start_accepts_collaboration_mode_override_v2) | test(suite::v2::turn_start::turn_start_accepts_personality_override_v2)'
    ```
    
    This reproduced intermittent `LEAK` statuses while tests still passed.
    
    ## What Changed
    In `codex-rs/app-server/tests/common/mcp_process.rs`:
    
    - Changed `stdin: ChildStdin` to `stdin: Option<ChildStdin>` so teardown
    can explicitly close stdin.
    - In `Drop`, close stdin first to trigger EOF-based graceful shutdown.
    - Wait briefly for graceful exit.
    - If still running, fall back to `start_kill()` and the existing bounded
    `try_wait()` loop.
    - Updated send-path handling to bail if stdin is already closed.
    
    ## Why This Is the Right Fix
    The leak signal was caused by child-process teardown timing, not
    test-logic assertion failure. The helper previously relied mostly on
    force-kill timing in `Drop`; that can race with nextest leak detection.
    
    Closing stdin first gives `codex-app-server` a deterministic, graceful
    shutdown path before force-kill. Keeping the force-kill fallback
    preserves robustness if graceful shutdown does not complete in time.
    
    ## Verification
    - `cargo test -p codex-app-server`
    - Re-ran the stress repro above after this change: no `LEAK` statuses
    observed.
    - Additional high-signal stress run also showed no leaks:
    
    ```bash
    cargo nextest run -p codex-app-server -j 2 --no-fail-fast --stress-count 100 --status-level leak --final-status-level fail -E 'test(suite::output_schema::send_user_turn_output_schema_is_per_turn_v1) | test(suite::v2::dynamic_tools::dynamic_tool_call_round_trip_sends_text_content_items_to_model)'
    ```
  • Stabilize app-server detached review and running-resume tests (#12203)
    ## Summary
    - stabilize
    `thread_resume_rejoins_running_thread_even_with_override_mismatch` by
    using a valid delayed second SSE response instead of an intentionally
    truncated stream
    - set `RUST_MIN_STACK=4194304` for spawned app-server test processes in
    `McpProcess` to avoid stack-sensitive CI overflows in detached review
    tests
    
    ## Why
    - the thread-resume assertion could race with a mocked stream-disconnect
    error and intermittently observe `systemError`
    - detached review startup is stack-sensitive in some CI environments;
    pinning a larger stack in the test harness removes that flake without
    changing product behavior
    
    ## Validation
    - `just fmt`
    - `cargo test -p codex-app-server --test all
    suite::v2::thread_resume::thread_resume_rejoins_running_thread_even_with_override_mismatch`
    - `cargo test -p codex-app-server --test all
    suite::v2::review::review_start_with_detached_delivery_returns_new_thread_id`
  • app-server: expose loaded thread status via read/list and notifications (#11786)
    Motivation
    - Today, a newly connected client has no direct way to determine the
    current runtime status of threads from read/list responses alone.
    - This forces clients to infer state from transient events, which can
    lead to stale or inconsistent UI when reconnecting or attaching late.
    
    Changes
    - Add `status` to `thread/read` responses.
    - Add `statuses` to `thread/list` responses.
    - Emit `thread/status/changed` notifications with `threadId` and the new
    status.
    - Track runtime status for all loaded threads and default unknown
    threads to `idle`.
    - Update protocol/docs/tests/schema fixtures for the revised API.
    
    Testing
    - Validated protocol API changes with automated protocol tests and
    regenerated schema/type fixtures.
    - Validated app-server behavior with unit and integration test suites,
    including status transitions and notifications.
  • app-server support for Windows sandbox setup. (#12025)
    app-server support for initiating Windows sandbox setup.
    server responds quickly to setup request and makes a future RPC call
    back to client when the setup finishes.
    
    The TUI implementation is unaffected but in a future PR I'll update the
    TUI to use the shared setup helper
    (`windows_sandbox.run_windows_sandbox_setup`)
  • feat(core): zsh exec bridge (#12052)
    zsh fork PR stack:
    - https://github.com/openai/codex/pull/12051 
    - https://github.com/openai/codex/pull/12052 👈 
    
    ### Summary
    This PR introduces a feature-gated native shell runtime path that routes
    shell execution through a patched zsh exec bridge, removing MCP-specific
    behavior from the shell hot path while preserving existing
    CommandExecution lifecycle semantics.
    
    When shell_zsh_fork is enabled, shell commands run via patched zsh with
    per-`execve` interception through EXEC_WRAPPER. Core receives wrapper
    IPC requests over a Unix socket, applies existing approval policy, and
    returns allow/deny before the subcommand executes.
    
    ### What’s included
    **1) New zsh exec bridge runtime in core**
    - Wrapper-mode entrypoint (maybe_run_zsh_exec_wrapper_mode) for
    EXEC_WRAPPER invocations.
    - Per-execution Unix-socket IPC handling for wrapper requests/responses.
    - Approval callback integration using existing core approval
    orchestration.
    - Streaming stdout/stderr deltas to existing command output event
    pipeline.
    - Error handling for malformed IPC, denial/abort, and execution
    failures.
    
    **2) Session lifecycle integration**
    SessionServices now owns a `ZshExecBridge`.
    Session startup initializes bridge state; shutdown tears it down
    cleanly.
    
    **3) Shell runtime routing (feature-gated)**
    When `shell_zsh_fork` is enabled:
    - Build execution env/spec as usual.
    - Add wrapper socket env wiring.
    - Execute via `zsh_exec_bridge.execute_shell_request(...)` instead of
    the regular shell path.
    - Non-zsh-fork behavior remains unchanged.
    
    **4) Config + feature wiring**
    - Added `Feature::ShellZshFork` (under development).
    - Added config support for `zsh_path` (optional absolute path to patched
    zsh):
    - `Config`, `ConfigToml`, `ConfigProfile`, overrides, and schema.
    - Session startup validates that `zsh_path` exists/usable when zsh-fork
    is enabled.
    - Added startup test for missing `zsh_path` failure mode.
    
    **5) Seatbelt/sandbox updates for wrapper IPC**
    - Extended seatbelt policy generation to optionally allow outbound
    connection to explicitly permitted Unix sockets.
    - Wired sandboxing path to pass wrapper socket path through to seatbelt
    policy generation.
    - Added/updated seatbelt tests for explicit socket allow rule and
    argument emission.
    
    **6) Runtime entrypoint hooks**
    - This allows the same binary to act as the zsh wrapper subprocess when
    invoked via `EXEC_WRAPPER`.
    
    **7) Tool selection behavior**
    - ToolsConfig now prefers ShellCommand type when shell_zsh_fork is
    enabled.
    - Added test coverage for precedence with unified-exec enabled.
  • feat(core): plumb distinct approval ids for command approvals (#12051)
    zsh fork PR stack:
    - https://github.com/openai/codex/pull/12051 👈 
    - https://github.com/openai/codex/pull/12052
    
    With upcoming support for a fork of zsh that allows us to intercept
    `execve` and run execpolicy checks for each subcommand as part of a
    `CommandExecution`, it will be possible for there to be multiple
    approval requests for a shell command like `/path/to/zsh -lc 'git status
    && rg \"TODO\" src && make test'`.
    
    To support that, this PR introduces a new `approval_id` field across
    core, protocol, and app-server so that we can associate approvals
    properly for subcommands.
  • Chore: remove response model check and rely on header model for downgrade (#12061)
    ### Summary
    Ensure that we use the model value from the response header only so that
    we are guaranteed with the correct slug name. We are no longer checking
    against the model value from response so that we are less likely to have
    false positive.
    
    There are two different treatments - for SSE we use the header from the
    response and for websocket we check top-level events.
  • app-server: Emit thread archive/unarchive notifications (#12030)
    * Add v2 server notifications `thread/archived` and `thread/unarchived`
    with a `threadId` payload.
    * Wire new events into `thread/archive` and `thread/unarchive` success
    paths.
    * Update app-server protocol/schema/docs accordingly.
    
    Testing:
    - Updated archive/unarchive end-to-end tests to verify both
    notifications are emitted with the expected thread id payload.
  • [apps] Expose more fields from apps listing endpoints. (#11706)
    - [x] Expose app_metadata, branding, and labels in AppInfo.
  • chore: rm remote models fflag (#11699)
    rm `remote_models` feature flag.
    
    We see issues like #11527 when a user has `remote_models` disabled, as
    we always use the default fallback `ModelInfo`. This causes issues with
    model performance.
    
    Builds on #11690, which helps by warning the user when they are using
    the default fallback. This PR will make that happen much less frequently
    as an accidental consequence of disabling `remote_models`.
  • Feat: add model reroute notification (#12001)
    ### Summary
    Builiding off
    https://github.com/openai/codex/pull/11964/files/5c75aa7b89a70bc2cc410a6fd238749306ec4c5e#diff-058ae8f109a8b84b4b79bbfa45f522c2233b9d9e139696044ae374d50b6196e0,
    we have created a `model/rerouted` notification that captures the event
    so that consumers can render as expected. Keep the `EventMsg::Warning`
    path in core so that this does not affect TUI rendering.
    
    `model/rerouted` is meant to be generic to account for future usage
    including capacity planning etc.
  • add(core): safety check downgrade warning (#11964)
    Add per-turn notice when a request is downgraded to a fallback model due
    to cyber safety checks.
    
    **Changes**
    
    - codex-api: Emit a ServerModel event based on the openai-model response
    header and/or response payload (SSE + WebSocket), including when the
    model changes mid-stream.
    - core: When the server-reported model differs from the requested model,
    emit a single per-turn warning explaining the reroute to gpt-5.2 and
    directing users to Trusted
        Access verification and the cyber safety explainer.
    - app-server (v2): Surface these cyber model-routing warnings as
    synthetic userMessage items with text prefixed by Warning: (and document
    this behavior).
  • chore(core) rm Feature::RequestRule (#11866)
    ## Summary
    This feature is now reasonably stable, let's remove it so we can
    simplify our upcoming iterations here.
    
    ## Testing 
    - [x] Existing tests pass
  • fix: show user warning when using default fallback metadata (#11690)
    ### What
    It's currently unclear when the harness falls back to the default,
    generic `ModelInfo`. This happens when the `remote_models` feature is
    disabled or the model is truly unknown, and can lead to bad performance
    and issues in the harness.
    
    Add a user-facing warning when this happens so they are aware when their
    setup is broken.
    
    ### Tests
    Added tests, tested locally.
  • fix: send unfiltered models over model/list (#11793)
    ### What
    to unblock filtering models in VSCE, change `model/list` app-server
    endpoint to send all models + visibility field `showInPicker` so
    filtering can be done in VSCE if desired.
    
    ### Tests
    Updated tests.
  • codex-rs: fix thread resume rejoin semantics (#11756)
    ## Summary
    - always rejoin an in-memory running thread on `thread/resume`, even
    when overrides are present
    - reject `thread/resume` when `history` is provided for a running thread
    - reject `thread/resume` when `path` mismatches the running thread
    rollout path
    - warn (but do not fail) on override mismatches for running threads
    - add more `thread_resume` integration tests and fixes; including
    restart-based resume-with-overrides coverage
    
    ## Validation
    - `just fmt`
    - `cargo test -p codex-app-server --test all thread_resume`
    - manual test with app-server-test-client
    https://github.com/openai/codex/pull/11755
    - manual test both stdio and websocket in app
  • [app-server] add fuzzyFileSearch/sessionCompleted (#11773)
    this is to allow the client to know when to stop showing a spinner.
  • [apps] Fix app loading logic. (#11518)
    When `app/list` is called with `force_refetch=True`, we should seed the
    results with what is already cached instead of starting from an empty
    list. Otherwise when we send app/list/updated events, the client will
    first see an empty list of accessible apps and then get the updated one.
  • Add cwd as an optional field to thread/list (#11651)
    Add's the ability to filter app-server thread/list by cwd