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483 Commits

  • fix(tui): reduce startup and new-session latency (#17039)
    ## TL;DR
    
    - Fetches account/rateLimits/read asynchronously so the TUI can continue
    starting without waiting for the rate-limit response.
    - Fixes the /status card so it no longer leaves a stale “refreshing
    cached limits...” notice in terminal history.
    
    ## Problem
    
    The TUI bootstrap path fetched account rate limits synchronously
    (`account/rateLimits/read`) before the event loop started for
    ChatGPT/OpenAI-authenticated startups. This added ~670 ms of blocking
    latency in the measured hot-start case, even though rate-limit data is
    not needed to render the initial UI or accept user input. The delay was
    especially noticeable on hot starts where every other RPC
    (`account/read`, `model/list`, `thread/start`) completed in under 70 ms
    total.
    
    Moving that fetch to the background also exposed a `/status` UI bug: the
    status card is flattened into terminal scrollback when it is inserted. A
    transient "refreshing limits in background..." line could not be cleared
    later, because the async completion updated the retained `HistoryCell`,
    not the already-written terminal history.
    
    ## Mental model
    
    Before this change, `AppServerSession::bootstrap()` performed three
    sequential RPCs: `account/read` → `model/list` →
    `account/rateLimits/read`. The result of the third call was baked into
    `AppServerBootstrap` and applied to the chat widget before the event
    loop began.
    
    After this change, `bootstrap()` only performs two RPCs (`account/read`
    + `model/list`), and rate-limit fetching is kicked off as an async
    background task immediately after the first frame is scheduled. A new
    enum, `RateLimitRefreshOrigin`, tags each fetch so the event handler
    knows whether the result came from the startup prefetch or from a
    user-initiated `/status` command; they have different completion
    side-effects.
    
    The `get_login_status()` helper (used outside the main app flow) was
    also decoupled: it previously called the full `bootstrap()` just to
    check auth mode, wasting model-list and rate-limit work. It now calls
    the narrower `read_account()` directly.
    
    For `/status`, this PR keeps the background refresh request but stops
    printing transient refresh notices into status history when cached
    limits are already available. If a refresh updates the cache, the next
    `/status` command will render the new values.
    
    ## Non-goals
    
    - This change does not alter the rate-limit data itself.
    - This change does not introduce caching, retries, or staleness
    management for rate limits.
    - This change does not affect the `model/list` or `thread/start` RPCs;
    they remain on the critical startup path.
    
    ## Tradeoffs
    
    - **Stale-on-first-render**: The status bar will briefly show no
    rate-limit info until the background fetch completes; observed
    background fetches landed roughly in the 400-900 ms range after the UI
    appeared. This is acceptable because the user cannot meaningfully act on
    rate-limit data in the first fraction of a second.
    - **Error silence on startup prefetch**: If the startup prefetch fails,
    the error is logged but the UI is not notified (unlike `/status` refresh
    failures, which go through the status-command completion path). This
    avoids surfacing transient network errors as a startup blocker.
    - **Static `/status` history**: `/status` output is terminal history,
    not a live widget. The card now avoids progress-style language that
    would appear stuck in scrollback; users can run `/status` again to see
    newly cached values.
    - **`account_auth_mode` field removed from `AppServerBootstrap`**: The
    only consumer was `get_login_status()`, which no longer goes through
    `bootstrap()`. The field was dead weight.
    
    ## Architecture
    
    ### New types
    
    - `RateLimitRefreshOrigin` (in `app_event.rs`): A `Copy` enum
    distinguishing `StartupPrefetch` from `StatusCommand { request_id }`.
    Carried through `RefreshRateLimits` and `RateLimitsLoaded` events so the
    handler applies the right completion behavior.
    
    ### Modified types
    
    - `AppServerBootstrap`: Lost `account_auth_mode` and
    `rate_limit_snapshots`; gained `requires_openai_auth: bool` (passed
    through from the account response so the caller can decide whether to
    fire the prefetch).
    
    ### Control flow
    
    1. `bootstrap()` returns with `requires_openai_auth` and
    `has_chatgpt_account`.
    2. After scheduling the first frame, `App::run_inner` fires
    `refresh_rate_limits(StartupPrefetch)` if both flags are true.
    3. When `RateLimitsLoaded { StartupPrefetch, Ok(..) }` arrives,
    snapshots are applied and a frame is scheduled to repaint the status
    bar.
    4. When `RateLimitsLoaded { StartupPrefetch, Err(..) }` arrives, the
    error is logged and no UI update occurs.
    5. `/status`-initiated refreshes continue to use `StatusCommand {
    request_id }` and call `finish_status_rate_limit_refresh` on completion
    (success or failure).
    6. `/status` history cells with cached rate-limit rows no longer render
    an additional "refreshing limits" notice; the async refresh updates the
    cache for future status output.
    
    ### Extracted method
    
    - `AppServerSession::read_account()`: Factored out of `bootstrap()` so
    that `get_login_status()` can call it independently without triggering
    model-list or rate-limit work.
    
    ## Observability
    
    - The existing `tracing::warn!` for rate-limit fetch failures is
    preserved for the startup path.
    - No new metrics or spans are introduced. The startup-time improvement
    is observable via the existing `ready` timestamp in TUI startup logs.
    
    ## Tests
    
    - Existing tests in `status_command_tests.rs` are updated to match on
    `RateLimitRefreshOrigin::StatusCommand { request_id }` instead of a bare
    `request_id`.
    - Focused `/status` tests now assert that status history avoids
    transient refresh text, continues to request an async refresh, and uses
    refreshed cached limits in future status output.
    - No new tests are added for the startup prefetch path because it is a
    fire-and-forget spawn with no observable side-effect other than the
    widget state update, which is already covered by the
    snapshot-application tests.
    
    ---------
    
    Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
  • Use model metadata for Fast Mode status (#16949)
    Fast Mode status was still tied to one model name in the TUI and
    model-list plumbing. This changes the model metadata shape so a model
    can advertise additional speed tiers, carries that field through the
    app-server model list, and uses it to decide when to show Fast Mode
    status.
    
    For people using Codex, the behavior is intended to stay the same for
    existing models. Fast Mode still requires the existing signed-in /
    feature-gated path; the difference is that the UI can now recognize any
    model the model list marks as Fast-capable, instead of requiring a new
    client-side slug check.
  • Add WebRTC transport to realtime start (#16960)
    Adds WebRTC startup to the experimental app-server
    `thread/realtime/start` method with an optional transport enum. The
    websocket path remains the default; WebRTC offers create the realtime
    session through the shared start flow and emit the answer SDP via
    `thread/realtime/sdp`.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Make AbsolutePathBuf joins infallible (#16981)
    Having to check for errors every time join is called is painful and
    unnecessary.
  • [codex] reduce module visibility (#16978)
    ## Summary
    - reduce public module visibility across Rust crates, preferring private
    or crate-private modules with explicit crate-root public exports
    - update external call sites and tests to use the intended public crate
    APIs instead of reaching through module trees
    - add the module visibility guideline to AGENTS.md
    
    ## Validation
    - `cargo check --workspace --all-targets --message-format=short` passed
    before the final fix/format pass
    - `just fix` completed successfully
    - `just fmt` completed successfully
    - `git diff --check` passed
  • [codex-analytics] add protocol-native turn timestamps (#16638)
    ---
    [//]: # (BEGIN SAPLING FOOTER)
    Stack created with [Sapling](https://sapling-scm.com). Best reviewed
    with [ReviewStack](https://reviewstack.dev/openai/codex/pull/16638).
    * #16870
    * #16706
    * #16659
    * #16641
    * #16640
    * __->__ #16638
  • Annotate skill doc reads with skill names (#16813)
    Addresses #16303
    
    Problem: Skill doc reads render as plain `Read SKILL.md`, so the TUI
    hides which skill was opened.
    
    Solution: Best-effort annotate exact `SKILL.md` reads with the matching
    loaded skill name from `skills_all` before rendering exec cells.
    
    Before:
    ```
    • Explored
      └ Read SKILL.md
    ```
    
    After:
    ```
    • Explored
      └ Read SKILL.md (pr-babysitter skill)
    ```
  • Fix TUI fast mode toggle regression (#16833)
    Addresses #16832
    
    Problem: After `/fast on`, the TUI omitted an explicit service-tier
    clear on later turns, so `/fast off` left app-server sessions stuck on
    `priority` until restart.
    
    Solution: Always submit the current service tier with user turns,
    including an explicit clear when Fast mode is off, and add a regression
    test for the `/fast on` -> `/fast off` flow.
  • Codex/windows bazel rust test coverage no rs (#16528)
    # Why this PR exists
    
    This PR is trying to fix a coverage gap in the Windows Bazel Rust test
    lane.
    
    Before this change, the Windows `bazel test //...` job was nominally
    part of PR CI, but a non-trivial set of `//codex-rs/...` Rust test
    targets did not actually contribute test signal on Windows. In
    particular, targets such as `//codex-rs/core:core-unit-tests`,
    `//codex-rs/core:core-all-test`, and `//codex-rs/login:login-unit-tests`
    were incompatible during Bazel analysis on the Windows gnullvm platform,
    so they never reached test execution there. That is why the
    Cargo-powered Windows CI job could surface Windows-only failures that
    the Bazel-powered job did not report: Cargo was executing those tests,
    while Bazel was silently dropping them from the runnable target set.
    
    The main goal of this PR is to make the Windows Bazel test lane execute
    those Rust test targets instead of skipping them during analysis, while
    still preserving `windows-gnullvm` as the target configuration for the
    code under test. In other words: use an MSVC host/exec toolchain where
    Bazel helper binaries and build scripts need it, but continue compiling
    the actual crate targets with the Windows gnullvm cfgs that our current
    Bazel matrix is supposed to exercise.
    
    # Important scope note
    
    This branch intentionally removes the non-resource-loading `.rs` test
    and production-code changes from the earlier
    `codex/windows-bazel-rust-test-coverage` branch. The only Rust source
    changes kept here are runfiles/resource-loading fixes in TUI tests:
    
    - `codex-rs/tui/src/chatwidget/tests.rs`
    - `codex-rs/tui/tests/manager_dependency_regression.rs`
    
    That is deliberate. Since the corresponding tests already pass under
    Cargo, this PR is meant to test whether Bazel infrastructure/toolchain
    fixes alone are enough to get a healthy Windows Bazel test signal,
    without changing test behavior for Windows timing, shell output, or
    SQLite file-locking.
    
    # How this PR changes the Windows Bazel setup
    
    ## 1. Split Windows host/exec and target concerns in the Bazel test lane
    
    The core change is that the Windows Bazel test job now opts into an MSVC
    host platform for Bazel execution-time tools, but only for `bazel test`,
    not for the Bazel clippy build.
    
    Files:
    
    - `.github/workflows/bazel.yml`
    - `.github/scripts/run-bazel-ci.sh`
    - `MODULE.bazel`
    
    What changed:
    
    - `run-bazel-ci.sh` now accepts `--windows-msvc-host-platform`.
    - When that flag is present on Windows, the wrapper appends
    `--host_platform=//:local_windows_msvc` unless the caller already
    provided an explicit `--host_platform`.
    - `bazel.yml` passes that wrapper flag only for the Windows `bazel test
    //...` job.
    - The Bazel clippy job intentionally does **not** pass that flag, so
    clippy stays on the default Windows gnullvm host/exec path and continues
    linting against the target cfgs we care about.
    - `run-bazel-ci.sh` also now forwards `CODEX_JS_REPL_NODE_PATH` on
    Windows and normalizes the `node` executable path with `cygpath -w`, so
    tests that need Node resolve the runner's Node installation correctly
    under the Windows Bazel test environment.
    
    Why this helps:
    
    - The original incompatibility chain was mostly on the **exec/tool**
    side of the graph, not in the Rust test code itself. Moving host tools
    to MSVC lets Bazel resolve helper binaries and generators that were not
    viable on the gnullvm exec platform.
    - Keeping the target platform on gnullvm preserves cfg coverage for the
    crates under test, which is important because some Windows behavior
    differs between `msvc` and `gnullvm`.
    
    ## 2. Teach the repo's Bazel Rust macro about Windows link flags and
    integration-test knobs
    
    Files:
    
    - `defs.bzl`
    - `codex-rs/core/BUILD.bazel`
    - `codex-rs/otel/BUILD.bazel`
    - `codex-rs/tui/BUILD.bazel`
    
    What changed:
    
    - Replaced the old gnullvm-only linker flag block with
    `WINDOWS_RUSTC_LINK_FLAGS`, which now handles both Windows ABIs:
      - gnullvm gets `-C link-arg=-Wl,--stack,8388608`
    - MSVC gets `-C link-arg=/STACK:8388608`, `-C
    link-arg=/NODEFAULTLIB:libucrt.lib`, and `-C link-arg=ucrt.lib`
    - Threaded those Windows link flags into generated `rust_binary`,
    unit-test binaries, and integration-test binaries.
    - Extended `codex_rust_crate(...)` with:
      - `integration_test_args`
      - `integration_test_timeout`
    - Used those new knobs to:
    - mark `//codex-rs/core:core-all-test` as a long-running integration
    test
      - serialize `//codex-rs/otel:otel-all-test` with `--test-threads=1`
    - Added `src/**/*.rs` to `codex-rs/tui` test runfiles, because one
    regression test scans source files at runtime and Bazel does not expose
    source-tree directories unless they are declared as data.
    
    Why this helps:
    
    - Once host-side MSVC tools are available, we still need the generated
    Rust test binaries to link correctly on Windows. The MSVC-side
    stack/UCRT flags make those binaries behave more like their Cargo-built
    equivalents.
    - The integration-test macro knobs avoid hardcoding one-off test
    behavior in ad hoc BUILD rules and make the generated test targets more
    expressive where Bazel and Cargo have different runtime defaults.
    
    ## 3. Patch `rules_rs` / `rules_rust` so Windows MSVC exec-side Rust and
    build scripts are actually usable
    
    Files:
    
    - `MODULE.bazel`
    - `patches/rules_rs_windows_exec_linker.patch`
    - `patches/rules_rust_windows_bootstrap_process_wrapper_linker.patch`
    - `patches/rules_rust_windows_build_script_runner_paths.patch`
    - `patches/rules_rust_windows_exec_msvc_build_script_env.patch`
    - `patches/rules_rust_windows_msvc_direct_link_args.patch`
    - `patches/rules_rust_windows_process_wrapper_skip_temp_outputs.patch`
    - `patches/BUILD.bazel`
    
    What these patches do:
    
    - `rules_rs_windows_exec_linker.patch`
    - Adds a `rust-lld` filegroup for Windows Rust toolchain repos,
    symlinked to `lld-link.exe` from `PATH`.
      - Marks Windows toolchains as using a direct linker driver.
      - Supplies Windows stdlib link flags for both gnullvm and MSVC.
    - `rules_rust_windows_bootstrap_process_wrapper_linker.patch`
    - For Windows MSVC Rust targets, prefers the Rust toolchain linker over
    an inherited C++ linker path like `clang++`.
    - This specifically avoids the broken mixed-mode command line where
    rustc emits MSVC-style `/NOLOGO` / `/LIBPATH:` / `/OUT:` arguments but
    Bazel still invokes `clang++.exe`.
    - `rules_rust_windows_build_script_runner_paths.patch`
    - Normalizes forward-slash execroot-relative paths into Windows path
    separators before joining them on Windows.
    - Uses short Windows paths for `RUSTC`, `OUT_DIR`, and the build-script
    working directory to avoid path-length and quoting issues in third-party
    build scripts.
    - Exposes `RULES_RUST_BAZEL_BUILD_SCRIPT_RUNNER=1` to build scripts so
    crate-local patches can detect "this is running under Bazel's
    build-script runner".
    - Fixes the Windows runfiles cleanup filter so generated files with
    retained suffixes are actually retained.
    - `rules_rust_windows_exec_msvc_build_script_env.patch`
    - For exec-side Windows MSVC build scripts, stops force-injecting
    Bazel's `CC`, `CXX`, `LD`, `CFLAGS`, and `CXXFLAGS` when that would send
    GNU-flavored tool paths/flags into MSVC-oriented Cargo build scripts.
    - Rewrites or strips GNU-only `--sysroot`, MinGW include/library paths,
    stack-protector, and `_FORTIFY_SOURCE` flags on the MSVC exec path.
    - The practical effect is that build scripts can fall back to the Visual
    Studio toolchain environment already exported by CI instead of crashing
    inside Bazel's hermetic `clang.exe` setup.
    - `rules_rust_windows_msvc_direct_link_args.patch`
    - When using a direct linker on Windows, stops forwarding GNU driver
    flags such as `-L...` and `--sysroot=...` that `lld-link.exe` does not
    understand.
    - Passes non-`.lib` native artifacts as explicit `-Clink-arg=<path>`
    entries when needed.
    - Filters C++ runtime libraries to `.lib` artifacts on the Windows
    direct-driver path.
    - `rules_rust_windows_process_wrapper_skip_temp_outputs.patch`
    - Excludes transient `*.tmp*` and `*.rcgu.o` files from process-wrapper
    dependency search-path consolidation, so unstable compiler outputs do
    not get treated as real link search-path inputs.
    
    Why this helps:
    
    - The host-platform split alone was not enough. Once Bazel started
    analyzing/running previously incompatible Rust tests on Windows, the
    next failures were in toolchain plumbing:
    - MSVC-targeted Rust tests were being linked through `clang++` with
    MSVC-style arguments.
    - Cargo build scripts running under Bazel's Windows MSVC exec platform
    were handed Unix/GNU-flavored path and flag shapes.
    - Some generated paths were too long or had path-separator forms that
    third-party Windows build scripts did not tolerate.
    - These patches make that mixed Bazel/Cargo/Rust/MSVC path workable
    enough for the test lane to actually build and run the affected crates.
    
    ## 4. Patch third-party crate build scripts that were not robust under
    Bazel's Windows MSVC build-script path
    
    Files:
    
    - `MODULE.bazel`
    - `patches/aws-lc-sys_windows_msvc_prebuilt_nasm.patch`
    - `patches/ring_windows_msvc_include_dirs.patch`
    - `patches/zstd-sys_windows_msvc_include_dirs.patch`
    
    What changed:
    
    - `aws-lc-sys`
    - Detects Bazel's Windows MSVC build-script runner via
    `RULES_RUST_BAZEL_BUILD_SCRIPT_RUNNER` or a `bazel-out` manifest-dir
    path.
    - Uses `clang-cl` for Bazel Windows MSVC builds when no explicit
    `CC`/`CXX` is set.
    - Allows prebuilt NASM on the Bazel Windows MSVC path even when `nasm`
    is not available directly in the runner environment.
    - Avoids canonicalizing `CARGO_MANIFEST_DIR` in the Bazel Windows MSVC
    case, because that path may point into Bazel output/runfiles state where
    preserving the given path is more reliable than forcing a local
    filesystem canonicalization.
    - `ring`
    - Under the Bazel Windows MSVC build-script runner, copies the
    pregenerated source tree into `OUT_DIR` and uses that as the
    generated-source root.
    - Adds include paths needed by MSVC compilation for
    Fiat/curve25519/P-256 generated headers.
    - Rewrites a few relative includes in C sources so the added include
    directories are sufficient.
    - `zstd-sys`
    - Adds MSVC-only include directories for `compress`, `decompress`, and
    feature-gated dictionary/legacy/seekable sources.
    - Skips `-fvisibility=hidden` on MSVC targets, where that
    GCC/Clang-style flag is not the right mechanism.
    
    Why this helps:
    
    - After the `rules_rust` plumbing started running build scripts on the
    Windows MSVC exec path, some third-party crates still failed for
    crate-local reasons: wrong compiler choice, missing include directories,
    build-script assumptions about manifest paths, or Unix-only C compiler
    flags.
    - These crate patches address those crate-local assumptions so the
    larger toolchain change can actually reach first-party Rust test
    execution.
    
    ## 5. Keep the only `.rs` test changes to Bazel/Cargo runfiles parity
    
    Files:
    
    - `codex-rs/tui/src/chatwidget/tests.rs`
    - `codex-rs/tui/tests/manager_dependency_regression.rs`
    
    What changed:
    
    - Instead of asking `find_resource!` for a directory runfile like
    `src/chatwidget/snapshots` or `src`, these tests now resolve one known
    file runfile first and then walk to its parent directory.
    
    Why this helps:
    
    - Bazel runfiles are more reliable for explicitly declared files than
    for source-tree directories that happen to exist in a Cargo checkout.
    - This keeps the tests working under both Cargo and Bazel without
    changing their actual assertions.
    
    # What we tried before landing on this shape, and why those attempts did
    not work
    
    ## Attempt 1: Force `--host_platform=//:local_windows_msvc` for all
    Windows Bazel jobs
    
    This did make the previously incompatible test targets show up during
    analysis, but it also pushed the Bazel clippy job and some unrelated
    build actions onto the MSVC exec path.
    
    Why that was bad:
    
    - Windows clippy started running third-party Cargo build scripts with
    Bazel's MSVC exec settings and crashed in crates such as `tree-sitter`
    and `libsqlite3-sys`.
    - That was a regression in a job that was previously giving useful
    gnullvm-targeted lint signal.
    
    What this PR does instead:
    
    - The wrapper flag is opt-in, and `bazel.yml` uses it only for the
    Windows `bazel test` lane.
    - The clippy lane stays on the default Windows gnullvm host/exec
    configuration.
    
    ## Attempt 2: Broaden the `rules_rust` linker override to all Windows
    Rust actions
    
    This fixed the MSVC test-lane failure where normal `rust_test` targets
    were linked through `clang++` with MSVC-style arguments, but it broke
    the default gnullvm path.
    
    Why that was bad:
    
    -
    `@@rules_rs++rules_rust+rules_rust//util/process_wrapper:process_wrapper`
    on the gnullvm exec platform started linking with `lld-link.exe` and
    then failed to resolve MinGW-style libraries such as `-lkernel32`,
    `-luser32`, and `-lmingw32`.
    
    What this PR does instead:
    
    - The linker override is restricted to Windows MSVC targets only.
    - The gnullvm path keeps its original linker behavior, while MSVC uses
    the direct Windows linker.
    
    ## Attempt 3: Keep everything on pure Windows gnullvm and patch the V8 /
    Python incompatibility chain instead
    
    This would have preserved a single Windows ABI everywhere, but it is a
    much larger project than this PR.
    
    Why that was not the practical first step:
    
    - The original incompatibility chain ran through exec-side generators
    and helper tools, not only through crate code.
    - `third_party/v8` is already special-cased on Windows gnullvm because
    `rusty_v8` only publishes Windows prebuilts under MSVC names.
    - Fixing that path likely means deeper changes in
    V8/rules_python/rules_rust toolchain resolution and generator execution,
    not just one local CI flag.
    
    What this PR does instead:
    
    - Keep gnullvm for the target cfgs we want to exercise.
    - Move only the Windows test lane's host/exec platform to MSVC, then
    patch the build-script/linker boundary enough for that split
    configuration to work.
    
    ## Attempt 4: Validate compatibility with `bazel test --nobuild ...`
    
    This turned out to be a misleading local validation command.
    
    Why:
    
    - `bazel test --nobuild ...` can successfully analyze targets and then
    still exit 1 with "Couldn't start the build. Unable to run tests"
    because there are no runnable test actions after `--nobuild`.
    
    Better local check:
    
    ```powershell
    bazel build --nobuild --keep_going --host_platform=//:local_windows_msvc //codex-rs/login:login-unit-tests //codex-rs/core:core-unit-tests //codex-rs/core:core-all-test
    ```
    
    # Which patches probably deserve upstream follow-up
    
    My rough take is that the `rules_rs` / `rules_rust` patches are the
    highest-value upstream candidates, because they are fixing generic
    Windows host/exec + MSVC direct-linker behavior rather than
    Codex-specific test logic.
    
    Strong upstream candidates:
    
    - `patches/rules_rs_windows_exec_linker.patch`
    - `patches/rules_rust_windows_bootstrap_process_wrapper_linker.patch`
    - `patches/rules_rust_windows_build_script_runner_paths.patch`
    - `patches/rules_rust_windows_exec_msvc_build_script_env.patch`
    - `patches/rules_rust_windows_msvc_direct_link_args.patch`
    - `patches/rules_rust_windows_process_wrapper_skip_temp_outputs.patch`
    
    Why these seem upstreamable:
    
    - They address general-purpose problems in the Windows MSVC exec path:
      - missing direct-linker exposure for Rust toolchains
      - wrong linker selection when rustc emits MSVC-style args
    - Windows path normalization/short-path issues in the build-script
    runner
      - forwarding GNU-flavored CC/link flags into MSVC Cargo build scripts
      - unstable temp outputs polluting process-wrapper search-path state
    
    Potentially upstreamable crate patches, but likely with more care:
    
    - `patches/zstd-sys_windows_msvc_include_dirs.patch`
    - `patches/ring_windows_msvc_include_dirs.patch`
    - `patches/aws-lc-sys_windows_msvc_prebuilt_nasm.patch`
    
    Notes on those:
    
    - The `zstd-sys` and `ring` include-path fixes look fairly generic for
    MSVC/Bazel build-script environments and may be straightforward to
    propose upstream after we confirm CI stability.
    - The `aws-lc-sys` patch is useful, but it includes a Bazel-specific
    environment probe and CI-specific compiler fallback behavior. That
    probably needs a cleaner upstream-facing shape before sending it out, so
    upstream maintainers are not forced to adopt Codex's exact CI
    assumptions.
    
    Probably not worth upstreaming as-is:
    
    - The repo-local Starlark/test target changes in `defs.bzl`,
    `codex-rs/*/BUILD.bazel`, and `.github/scripts/run-bazel-ci.sh` are
    mostly Codex-specific policy and CI wiring, not generic rules changes.
    
    # Validation notes for reviewers
    
    On this branch, I ran the following local checks after dropping the
    non-resource-loading Rust edits:
    
    ```powershell
    cargo test -p codex-tui
    just --shell 'C:\Program Files\Git\bin\bash.exe' --shell-arg -lc -- fix -p codex-tui
    python .\tools\argument-comment-lint\run-prebuilt-linter.py -p codex-tui
    just --shell 'C:\Program Files\Git\bin\bash.exe' --shell-arg -lc fmt
    ```
    
    One local caveat:
    
    - `just argument-comment-lint` still fails on this Windows machine for
    an unrelated Bazel toolchain-resolution issue in
    `//codex-rs/exec:exec-all-test`, so I used the direct prebuilt linter
    for `codex-tui` as the local fallback.
    
    # Expected reviewer takeaway
    
    If this PR goes green, the important conclusion is that the Windows
    Bazel test coverage gap was primarily a Bazel host/exec toolchain
    problem, not a need to make the Rust tests themselves Windows-specific.
    That would be a strong signal that the deleted non-resource-loading Rust
    test edits from the earlier branch should stay out, and that future work
    should focus on upstreaming the generic `rules_rs` / `rules_rust`
    Windows fixes and reducing the crate-local patch surface.
  • Remove OPENAI_BASE_URL config fallback (#16720)
    The `OPENAI_BASE_URL` environment variable has been a significant
    support issue, so we decided to deprecate it in favor of an
    `openai_base_url` config key. We've had the deprecation warning in place
    for about a month, so users have had time to migrate to the new
    mechanism. This PR removes support for `OPENAI_BASE_URL` entirely.
  • remove temporary ownership re-exports (#16626)
    Stacked on #16508.
    
    This removes the temporary `codex-core` / `codex-login` re-export shims
    from the ownership split and rewrites callsites to import directly from
    `codex-model-provider-info`, `codex-models-manager`, `codex-api`,
    `codex-protocol`, `codex-feedback`, and `codex-response-debug-context`.
    
    No behavior change intended; this is the mechanical import cleanup layer
    split out from the ownership move.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • [codex] Remove codex-core config type shim (#16529)
    ## Why
    
    This finishes the config-type move out of `codex-core` by removing the
    temporary compatibility shim in `codex_core::config::types`. Callers now
    depend on `codex-config` directly, which keeps these config model types
    owned by the config crate instead of re-expanding `codex-core` as a
    transitive API surface.
    
    ## What Changed
    
    - Removed the `codex-rs/core/src/config/types.rs` re-export shim and the
    `core::config::ApprovalsReviewer` re-export.
    - Updated `codex-core`, `codex-cli`, `codex-tui`, `codex-app-server`,
    `codex-mcp-server`, and `codex-linux-sandbox` call sites to import
    `codex_config::types` directly.
    - Added explicit `codex-config` dependencies to downstream crates that
    previously relied on the `codex-core` re-export.
    - Regenerated `codex-rs/core/config.schema.json` after updating the
    config docs path reference.
  • Fix TUI app-server permission profile conversions (#16284)
    Addresses #16283
    
    Problem: TUI app-server permission approvals could drop filesystem
    grants because request and response payloads were round-tripped through
    mismatched camelCase and snake_case JSON shapes.
    Solution: Replace the lossy JSON round-trips with typed app-server/core
    permission conversions so requested and granted permission profiles,
    including filesystem paths and scope, are preserved end to end.
  • fix(guardian): make GuardianAssessmentEvent.action strongly typed (#16448)
    ## Description
    
    Previously the `action` field on `EventMsg::GuardianAssessment`, which
    describes what Guardian is reviewing, was typed as an arbitrary JSON
    blob. This PR cleans it up and defines a sum type representing all the
    various actions that Guardian can review.
    
    This is a breaking change (on purpose), which is fine because:
    - the Codex app / VSCE does not actually use `action` at the moment
    - the TUI code that consumes `action` is updated in this PR as well
    - rollout files that serialized old `EventMsg::GuardianAssessment` will
    just silently drop these guardian events
    - the contract is defined as unstable, so other clients have a fair
    warning :)
    
    This will make things much easier for followup Guardian work.
    
    ## Why
    
    The old guardian review payloads worked, but they pushed too much shape
    knowledge into downstream consumers. The TUI had custom JSON parsing
    logic for commands, patches, network requests, and MCP calls, and the
    app-server protocol was effectively just passing through an opaque blob.
    
    Typing this at the protocol boundary makes the contract clearer.
  • Fix stale /status rate limits in active TUI sessions (#16201)
    Fix stale weekly limit in `/status` (#16194): /status reused the
    session’s cached rate-limit snapshot, so the weekly remaining limit
    could stay frozen within an active session.
    
    With this change, we now dynamically update the rate limits after status
    is displayed.
    
    I needed to delete a few low-value test cases from the chatWidget tests
    because the test.rs file is really large, and the new tests in this PR
    pushed us over the 512K mandated limit. I'm working on a separate PR to
    refactor that test file.
  • Refactor chatwidget tests into topical modules (#16361)
    Problem: `chatwidget/tests.rs` had grown into a single oversized test
    blob that was hard to maintain and exceeded the repo's blob size limit.
    
    Solution: split the chatwidget tests into topical modules with a thin
    root `tests.rs`, shared helper utilities, preserved snapshot naming, and
    hermetic test config so the refactor stays stable and passes the
    `codex-tui` test suite.
  • Route TUI /feedback submission through the app server (#16184)
    The TUI’s `/feedback` flow was still uploading directly through the
    local feedback crate, which bypassed app-server behavior such as
    auth-derived feedback tags like chatgpt_user_id and made TUI feedback
    handling diverge from other clients. It also meant that remove TUI
    sessions failed to upload the correct feedback logs and session details.
    
    Testing: Manually tested `/feedback` flow and confirmed that it didn't
    regress.
  • [codex] Normalize Windows path in MCP startup snapshot test (#16204)
    ## Summary
    A Windows-only snapshot assertion in the app-server MCP startup warning
    test compared the raw rendered path, so CI saw `C:\tmp\project` instead
    of the normalized `/tmp/project` snapshot fixture.
    
    ## Fix
    Route that snapshot assertion through the existing
    `normalize_snapshot_paths(...)` helper so the test remains
    platform-stable.
  • Fix app-server TUI MCP startup warnings regression (#16041)
    This addresses #16038
    
    The default `tui_app_server` path stopped surfacing MCP startup failures
    during cold start, even though the legacy TUI still showed warnings like
    `MCP startup incomplete (...)`. The app-server bridge emitted per-server
    startup status notifications, but `tui_app_server` ignored them, so
    failed MCP handshakes could look like a clean startup.
    
    This change teaches `tui_app_server` to consume MCP startup status
    notifications, preserve the immediate per-server failure warning, and
    synthesize the same aggregate startup warning the legacy TUI shows once
    startup settles.
  • Remove TUI voice transcription feature (#16114)
    Removes the partially-completed TUI composer voice transcription flow,
    including its feature flag, app events, and hold-to-talk state machine.
  • Rename tui_app_server to tui (#16104)
    This is a follow-up to https://github.com/openai/codex/pull/15922. That
    previous PR deleted the old `tui` directory and left the new
    `tui_app_server` directory in place. This PR renames `tui_app_server` to
    `tui` and fixes up all references.
  • Remove the legacy TUI split (#15922)
    This is the part 1 of 2 PRs that will delete the `tui` /
    `tui_app_server` split. This part simply deletes the existing `tui`
    directory and marks the `tui_app_server` feature flag as removed. I left
    the `tui_app_server` feature flag in place for now so its presence
    doesn't result in an error. It is simply ignored.
    
    Part 2 will rename the `tui_app_server` directory `tui`. I did this as
    two parts to reduce visible code churn.
  • chore: remove skill metadata from command approval payloads (#15906)
    ## Why
    
    This is effectively a follow-up to
    [#15812](https://github.com/openai/codex/pull/15812). That change
    removed the special skill-script exec path, but `skill_metadata` was
    still being threaded through command-approval payloads even though the
    approval flow no longer uses it to render prompts or resolve decisions.
    
    Keeping it around added extra protocol, schema, and client surface area
    without changing behavior.
    
    Removing it keeps the command-approval contract smaller and avoids
    carrying a dead field through app-server, TUI, and MCP boundaries.
    
    ## What changed
    
    - removed `ExecApprovalRequestSkillMetadata` and the corresponding
    `skillMetadata` field from core approval events and the v2 app-server
    protocol
    - removed the generated JSON and TypeScript schema output for that field
    - updated app-server, MCP server, TUI, and TUI app-server approval
    plumbing to stop forwarding the field
    - cleaned up tests that previously constructed or asserted
    `skillMetadata`
    
    ## Testing
    
    - `cargo test -p codex-app-server-protocol`
    - `cargo test -p codex-protocol`
    - `cargo test -p codex-app-server-test-client`
    - `cargo test -p codex-mcp-server`
    - `just argument-comment-lint`
  • skills: remove unused skill permission metadata (#15900)
    ## Why
    
    Skill metadata accepted a `permissions` block and stored the result on
    `SkillMetadata`, but that data was never consumed by runtime behavior.
    Leaving the dead parsing path in place makes it look like skills can
    widen or otherwise influence execution permissions when, in practice,
    declared skill permissions are ignored.
    
    This change removes that misleading surface area so the skill metadata
    model matches what the system actually uses.
    
    ## What changed
    
    - removed `permission_profile` and `managed_network_override` from
    `core-skills::SkillMetadata`
    - stopped parsing `permissions` from skill metadata in
    `core-skills/src/loader.rs`
    - deleted the loader tests that only exercised the removed permissions
    parsing path
    - cleaned up dependent `SkillMetadata` constructors in tests and TUI
    code that were only carrying `None` for those fields
    
    ## Testing
    
    - `cargo test -p codex-core-skills`
    - `cargo test -p codex-tui
    submission_prefers_selected_duplicate_skill_path`
    - `just argument-comment-lint`
  • [hooks] add non-streaming (non-stdin style) shell-only PostToolUse support (#15531)
    CHAINED PR - note that base is eternal/hooks-pretooluse-bash, not main
    -- so the following PR should be first
    
    Matching post-tool hook to the pre-tool functionality here:
    https://github.com/openai/codex/pull/15211
    
    So, PreToolUse calls for plain shell calls, allows blocking. This
    PostToolUse call runs after the command executed
    
    example run:
    
    ```
    › as a test, run in parallel the following commands:
      - echo 'one'
      - echo '[block-pre-tool-use]'
      - echo '[block-post-tool-use]'
    
    
    ⚠ MCP startup incomplete (failed: notion, linear)
    
    • Cruising through those three commands in parallel now, and I’ll share the exact outputs right after
      they land.
    
    • Running PreToolUse hook: checking the observatory runes
    
    • Running PreToolUse hook: checking the observatory runes
    
    • Running PreToolUse hook: checking the observatory runes
    
    PreToolUse hook (blocked)
      warning: wizard-tower PreToolUse demo blocked a Bash command on purpose.
      feedback: PreToolUse demo blocked the command. Remove [block-pre-tool-use] to continue.
    
    PreToolUse hook (completed)
      warning: wizard-tower PreToolUse demo inspected Bash: echo 'one'
    
    PreToolUse hook (completed)
      warning: wizard-tower PreToolUse demo inspected Bash: echo '[block-post-tool-use]'
    
    • Ran echo '[block-post-tool-use]'
      └ [block-post-tool-use]
    
    • Ran echo 'one'
      └ one
    
    • Running PostToolUse hook: reading the observatory aftermath
    
    • Running PostToolUse hook: reading the observatory aftermath
    
    PostToolUse hook (blocked)
      warning: wizard-tower PostToolUse demo blocked the Bash follow-through on purpose.
      feedback: PostToolUse demo blocked the result after execution. Remove [block-post-tool-use] to
    continue.
    
    PostToolUse hook (completed)
      warning: wizard-tower PostToolUse demo inspected Bash: echo 'one'
      hook context: PostToolUse demo saw the Bash result. Response preview: one
    
    ──────────────────────────────────────────────────────────────────────────────────────────────────────
    
    • Ran them in parallel. Little wave report:
    
      - echo 'one' completed and returned one.
      - echo '[block-pre-tool-use]' was blocked before execution by the PreToolUse hook.
      - echo '[block-post-tool-use]' ran, but its result was blocked afterward by the PostToolUse hook.
    
      The hook messages were:
    
      - PreToolUse demo blocked the command. Remove [block-pre-tool-use] to continue.
      - PostToolUse demo blocked the result after execution. Remove [block-post-tool-use] to continue.
    
    
    › for the blocked messages (correctly blocked in this test) did the tool output land back into
      context?
    
    
    • Yeah, from this run:
    
      - PreToolUse block: the command itself did not execute, so no command output landed in context. Only
        the block message did.
      - PostToolUse block: the command did execute, but the actual stdout did not come back into context.
        Only the post-tool block message did.
    
      So the blocked notifications landed in context, but the blocked command payloads themselves did not.
      Nice clean guardrail, aloha.
    ```
  • TUI plugin menu polish (#15802)
    - Add "OpenAI Curated" display name for `openai-curated` marketplace
    - Hide /apps menu
    - Change app install phase display text
  • Use AbsolutePathBuf for cwd state (#15710)
    Migrate `cwd` and related session/config state to `AbsolutePathBuf` so
    downstream consumers consistently see absolute working directories.
    
    Add test-only `.abs()` helpers for `Path`, `PathBuf`, and `TempDir`, and
    update branch-local tests to use them instead of
    `AbsolutePathBuf::try_from(...)`.
    
    For the remaining TUI/app-server snapshot coverage that renders absolute
    cwd values, keep the snapshots unchanged and skip the Windows-only cases
    where the platform-specific absolute path layout differs.
  • TUI plugin menu cleanup - hide app ID (#15708)
    - Hide App ID from plugin details page.
  • Add legal link to TUI /plugin details (#15692)
    - Adds language and "[learn
    more](https://help.openai.com/en/articles/11487775-apps-in-chatgpt)"
    link to plugin details pages.
    -  Message is hidden when plugin is installed
    
    <img width="1970" height="498" alt="image"
    src="https://github.com/user-attachments/assets/f14330f7-661e-4860-8538-6dc9e8bbd90a"
    />
  • Use delayed shimmer for plugin loading headers in tui and tui_app_server (#15674)
    - Add a small delayed loading header for plugin list/detail loading
    messages in the TUI. Keep existing text for the first 1s, then show
    shimmer on the loading line.
    - Apply the same behavior in both tui and tui_app_server.
    
    
    https://github.com/user-attachments/assets/71dd35e4-7e3b-4e7b-867a-3c13dc395d3a
  • Tweak /plugin menu wording (#15676)
    - Updated `/plugin` UI messaging for clearer wording.
    - Synced the same copy changes across `tui` and `tui_app_server`.
  • Clean up TUI /plugins row allignment (#15669)
    - Remove marketplace from left column.
    - Change `Can be installed` to `Available`
    - Align right-column marketplace + selected-row hint text across states.
    - Changes applied to both `tui` and `tui_app_server`.
    - Update related snapshots/tests.
    
    
    <img width="2142" height="590" alt="image"
    src="https://github.com/user-attachments/assets/6e60b783-2bea-46d4-b353-f2fd328ac4d0"
    />
  • Move git utilities into a dedicated crate (#15564)
    - create `codex-git-utils` and move the shared git helpers into it with
    file moves preserved for diff readability
    - move the `GitInfo` helpers out of `core` so stacked rollout work can
    depend on the shared crate without carrying its own git info module
    
    ---------
    
    Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
    Co-authored-by: Codex <noreply@openai.com>
  • Hide numeric prefixes on disabled TUI list rows (#15660)
    - Remove numeric prefixes for disabled rows in shared list rendering.
    These numbers are shortcuts, Ex: Pressing "2" selects option `#2`.
    Disabled items can not be selected, so keeping numbers on these items is
    misleading.
    - Apply the same behavior in both tui and tui_app_server.
    - Update affected snapshots for apps/plugins loading and plugin detail
    rows.
    
    _**This is a global change.**_
    
    Before:
    <img width="1680" height="488" alt="image"
    src="https://github.com/user-attachments/assets/4bcf94ad-285f-48d3-a235-a85b58ee58e2"
    />
    
    After:
    <img width="1706" height="484" alt="image"
    src="https://github.com/user-attachments/assets/76bb6107-a562-42fe-ae94-29440447ca77"
    />
  • [Codex TUI] - Sort /plugins TUI menu by installed status first, alpha second (#15558)
    Updates plugin ordering so installed plugins are listed first, with
    alphabetical sorting applied within the installed and uninstalled
    groups. The behavior is now consistent across both `tui` and
    `tui_app_server`, and related tests/snapshots were updated.
  • Remove filter from plugins/list result (#15580)
    Show all plugin marketplaces in the /plugins popup by removing the
    `openai-curated` marketplace filter, and update plugin popup
    copy/tests/snapshots to match the new behavior in both TUI codepaths.
  • [hooks] add non-streaming (non-stdin style) shell-only PreToolUse support (#15211)
    - add `PreToolUse` hook for bash-like tool execution only at first
    - block shell execution before dispatch with deny-only hook behavior
    - introduces common.rs matcher framework for matching when hooks are run
    
    example run:
    
    ```
    › run three parallel echo commands, and the second one should echo "[block-pre-tool-use]" as a test
    
    
    • Running the three echo commands in parallel now and I’ll report the output directly.
    
    • Running PreToolUse hook: name for demo pre tool use hook
    
    • Running PreToolUse hook: name for demo pre tool use hook
    
    • Running PreToolUse hook: name for demo pre tool use hook
    
    PreToolUse hook (completed)
      warning: wizard-tower PreToolUse demo inspected Bash: echo "first parallel echo"
      
    PreToolUse hook (blocked)
      warning: wizard-tower PreToolUse demo blocked a Bash command on purpose.
      feedback: PreToolUse demo blocked the command. Remove [block-pre-tool-use] to continue.
    
    PreToolUse hook (completed)
      warning: wizard-tower PreToolUse demo inspected Bash: echo "third parallel echo"
    
    • Ran echo "first parallel echo"
      └ first parallel echo
    
    • Ran echo "third parallel echo"
      └ third parallel echo
    
    • Three little waves went out in parallel.
    
      1. printed first parallel echo
      2. was blocked before execution because it contained the exact test string [block-pre-tool-use]
      3. printed third parallel echo
    
      There was also an unrelated macOS defaults warning around the successful commands, but the echoes
      themselves worked fine. If you want, I can rerun the second one with a slightly modified string so
      it passes cleanly.
    ```
  • Unify realtime stop handling in TUI (#15529)
    ## Summary
    - route /realtime, Ctrl+C, and deleted realtime meters through the same
    realtime stop path
    - keep generic transcription placeholder cleanup free of realtime
    shutdown side effects
    
    ## Testing
    - Ran 
    - Relied on CI for verification; did not run local tests
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • Plugins TUI install/uninstall (#15342)
    - Add install/uninstall actions to the TUI plugins menu
    - Wire plugin install/uninstall through both TUI and `tui_app_server`
    - Refresh config/plugin state after changes so the UI updates
    immediately
    - Add a post-install app setup flow for plugins that require additional
    app auth
    
    <img width="1567" height="300" alt="Screenshot 2026-03-20 at 4 08 44 PM"
    src="https://github.com/user-attachments/assets/366bd31b-2ffd-4e80-b4a3-3a9a9c674a5f"
    />
    <img width="445" height="240" alt="Screenshot 2026-03-20 at 4 08 54 PM"
    src="https://github.com/user-attachments/assets/613999ab-269a-4758-ab59-7c057a1742dc"
    />
    <img width="797" height="219" alt="Screenshot 2026-03-20 at 4 09 07 PM"
    src="https://github.com/user-attachments/assets/b9679e60-40f5-49bb-ade0-2e40449c3fbf"
    />
    <img width="499" height="235" alt="Screenshot 2026-03-20 at 4 09 24 PM"
    src="https://github.com/user-attachments/assets/261ce2fe-f356-4e99-8ac9-f29ed850bc75"
    />
    
    
    
    
    Note/known issue: The /plugin install flow fails in `tui_app_server`
    because after a successful install it tries to trigger a
    ReloadUserConfig operation, but `tui_app_server` has not yet implemented
    transport for that operation, so it falls through to the generic “Not
    available in app-server TUI yet” stub.
  • tui: queue follow-ups during manual /compact (#15259)
    ## Summary
    - queue input after the user submits `/compact` until that manual
    compact turn ends
    - mirror the same behavior in the app-server TUI
    - add regressions for input queued before compact starts and while it is
    running
    
    Co-authored-by: Codex <noreply@openai.com>
  • Use Shift+Left to edit queued messages in tmux (#15480)
    ## Summary
    - use Shift+Left to edit the most recent queued message when running
    under tmux
    - mirror the same binding change in the app-server TUI
    - add tmux-specific tests and snapshot coverage for the rendered
    queued-message hint
    
    ## Testing
    - just fmt
    - cargo test -p codex-tui
    - cargo test -p codex-tui-app-server
    - just argument-comment-lint -p codex-tui -p codex-tui-app-server
    
    Co-authored-by: Codex <noreply@openai.com>
  • [apps] Improve app tools loading for TUI. (#15376)
    - [x] Remove the app tools copy in TUI and reference the core tools
    instead, this reduces tools/list calls from 4 to just 1.
  • Initial plugins TUI menu - list and read only. tui + tui_app_server (#15215)
    ### Preliminary /plugins TUI menu
    - Adds a preliminary /plugins menu flow in both tui and tui_app_server.
    - Fetches plugin list data asynchronously and shows loading/error/cached
    states.
      - Limits this first pass to the curated ChatGPT marketplace.
      - Shows available plugins with installed/status metadata.
    - Supports in-menu search over plugin display name, plugin id, plugin
    name, and marketplace label.
    - Opens a plugin detail view on selection, including summaries for
    Skills, Apps, and MCP Servers, with back navigation.
    
    ### Testing
      - Launch codex-cli with plugins enabled (`--enable plugins`).
      - Run /plugins and verify:
          - loading state appears first
          - plugin list is shown
          - search filters results
    - selecting a plugin opens detail view, with a list of
    skills/connectors/MCP servers for the plugin
          - back action returns to the list.
    - Verify disabled behavior by running /plugins without plugins enabled
    (shows “Plugins are disabled” message).
    - Launch with `--enable tui_app_server` (and plugins enabled) and repeat
    the same /plugins flow; behavior should match.
  • Use released DotSlash package for argument-comment lint (#15199)
    ## Why
    The argument-comment lint now has a packaged DotSlash artifact from
    [#15198](https://github.com/openai/codex/pull/15198), so the normal repo
    lint path should use that released payload instead of rebuilding the
    lint from source every time.
    
    That keeps `just clippy` and CI aligned with the shipped artifact while
    preserving a separate source-build path for people actively hacking on
    the lint crate.
    
    The current alpha package also exposed two integration wrinkles that the
    repo-side prebuilt wrapper needs to smooth over:
    - the bundled Dylint library filename includes the host triple, for
    example `@nightly-2025-09-18-aarch64-apple-darwin`, and Dylint derives
    `RUSTUP_TOOLCHAIN` from that filename
    - on Windows, Dylint's driver path also expects `RUSTUP_HOME` to be
    present in the environment
    
    Without those adjustments, the prebuilt CI jobs fail during `cargo
    metadata` or driver setup. This change makes the checked-in prebuilt
    wrapper normalize the packaged library name to the plain
    `nightly-2025-09-18` channel before invoking `cargo-dylint`, and it
    teaches both the wrapper and the packaged runner source to infer
    `RUSTUP_HOME` from `rustup show home` when the environment does not
    already provide it.
    
    After the prebuilt Windows lint job started running successfully, it
    also surfaced a handful of existing anonymous literal callsites in
    `windows-sandbox-rs`. This PR now annotates those callsites so the new
    cross-platform lint job is green on the current tree.
    
    ## What Changed
    - checked in the current
    `tools/argument-comment-lint/argument-comment-lint` DotSlash manifest
    - kept `tools/argument-comment-lint/run.sh` as the source-build wrapper
    for lint development
    - added `tools/argument-comment-lint/run-prebuilt-linter.sh` as the
    normal enforcement path, using the checked-in DotSlash package and
    bundled `cargo-dylint`
    - updated `just clippy` and `just argument-comment-lint` to use the
    prebuilt wrapper
    - split `.github/workflows/rust-ci.yml` so source-package checks live in
    a dedicated `argument_comment_lint_package` job, while the released lint
    runs in an `argument_comment_lint_prebuilt` matrix on Linux, macOS, and
    Windows
    - kept the pinned `nightly-2025-09-18` toolchain install in the prebuilt
    CI matrix, since the prebuilt package still relies on rustup-provided
    toolchain components
    - updated `tools/argument-comment-lint/run-prebuilt-linter.sh` to
    normalize host-qualified nightly library filenames, keep the `rustup`
    shim directory ahead of direct toolchain `cargo` binaries, and export
    `RUSTUP_HOME` when needed for Windows Dylint driver setup
    - updated `tools/argument-comment-lint/src/bin/argument-comment-lint.rs`
    so future published DotSlash artifacts apply the same nightly-filename
    normalization and `RUSTUP_HOME` inference internally
    - fixed the remaining Windows lint violations in
    `codex-rs/windows-sandbox-rs` by adding the required `/*param*/`
    comments at the reported callsites
    - documented the checked-in DotSlash file, wrapper split, archive
    layout, nightly prerequisite, and Windows `RUSTUP_HOME` requirement in
    `tools/argument-comment-lint/README.md`
  • Split features into codex-features crate (#15253)
    - Split the feature system into a new `codex-features` crate.
    - Cut `codex-core` and workspace consumers over to the new config and
    warning APIs.
    
    Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
    Co-authored-by: Codex <noreply@openai.com>
  • adding full imagepath to tui (#15154)
    adding full path to TUI so image is open-able in the TUI after being
    generated. LImited to VSCode Terminal for now.
  • Move terminal module to terminal-detection crate (#15216)
    - Move core/src/terminal.rs and its tests into a standalone
    terminal-detection workspace crate.
    - Update direct consumers to depend on codex-terminal-detection and
    import terminal APIs directly.
    
    ---------
    
    Co-authored-by: Codex <noreply@openai.com>
  • feat(tui): add /title terminal title configuration (#12334)
    ## Problem
    
    When multiple Codex sessions are open at once, terminal tabs and windows
    are hard to distinguish from each other. The existing status line only
    helps once the TUI is already focused, so it does not solve the "which
    tab is this?" problem.
    
    This PR adds a first-class `/title` command so the terminal window or
    tab title can carry a short, configurable summary of the current
    session.
    
    ## Screenshot
    
    <img width="849" height="320" alt="image"
    src="https://github.com/user-attachments/assets/8b112927-7890-45ed-bb1e-adf2f584663d"
    />
    
    ## Mental model
    
    `/statusline` and `/title` are separate status surfaces with different
    constraints. The status line is an in-app footer that can be denser and
    more detailed. The terminal title is external terminal metadata, so it
    needs short, stable segments that still make multiple sessions easy to
    tell apart.
    
    The `/title` configuration is an ordered list of compact items. By
    default it renders `spinner,project`, so active sessions show
    lightweight progress first while idle sessions still stay easy to
    disambiguate. Each configured item is omitted when its value is not
    currently available rather than forcing a placeholder.
    
    ## Non-goals
    
    This does not merge `/title` into `/statusline`, and it does not add an
    arbitrary free-form title string. The feature is intentionally limited
    to a small set of structured items so the title stays short and
    reviewable.
    
    This also does not attempt to restore whatever title the terminal or
    shell had before Codex started. When Codex clears the title, it clears
    the title Codex last wrote.
    
    ## Tradeoffs
    
    A separate `/title` command adds some conceptual overlap with
    `/statusline`, but it keeps title-specific constraints explicit instead
    of forcing the status line model to cover two different surfaces.
    
    Title refresh can happen frequently, so the implementation now shares
    parsing and git-branch orchestration between the status line and title
    paths, and caches the derived project-root name by cwd. That keeps the
    hot path cheap without introducing background polling.
    
    ## Architecture
    
    The TUI gets a new `/title` slash command and a dedicated picker UI for
    selecting and ordering terminal-title items. The chosen ids are
    persisted in `tui.terminal_title`, with `spinner` and `project` as the
    default when the config is unset. `status` remains available as a
    separate text item, so configurations like `spinner,status` render
    compact progress like `⠋ Working`.
    
    `ChatWidget` now refreshes both status surfaces through a shared
    `refresh_status_surfaces()` path. That shared path parses configured
    items once, warns on invalid ids once, synchronizes shared cached state
    such as git-branch lookup, then renders the footer status line and
    terminal title from the same snapshot.
    
    Low-level OSC title writes live in `codex-rs/tui/src/terminal_title.rs`,
    which owns the terminal write path and last-mile sanitization before
    emitting OSC 0.
    
    ## Security
    
    Terminal-title text is treated as untrusted display content before Codex
    emits it. The write path strips control characters, removes invisible
    and bidi formatting characters that can make the title visually
    misleading, normalizes whitespace, and caps the emitted length.
    
    References used while implementing this:
    
    - [xterm control
    sequences](https://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
    - [WezTerm escape sequences](https://wezterm.org/escape-sequences.html)
    - [CWE-150: Improper Neutralization of Escape, Meta, or Control
    Sequences](https://cwe.mitre.org/data/definitions/150.html)
    - [CERT VU#999008 (Trojan Source)](https://kb.cert.org/vuls/id/999008)
    - [Trojan Source disclosure site](https://trojansource.codes/)
    - [Unicode Bidirectional Algorithm (UAX
    #9)](https://www.unicode.org/reports/tr9/)
    - [Unicode Security Considerations (UTR
    #36)](https://www.unicode.org/reports/tr36/)
    
    ## Observability
    
    Unknown configured title item ids are warned about once instead of
    repeatedly spamming the transcript. Live preview applies immediately
    while the `/title` picker is open, and cancel rolls the in-memory title
    selection back to the pre-picker value.
    
    If terminal title writes fail, the TUI emits debug logs around set and
    clear attempts. The rendered status label intentionally collapses richer
    internal states into compact title text such as `Starting...`, `Ready`,
    `Thinking...`, `Working...`, `Waiting...`, and `Undoing...` when
    `status` is configured.
    
    ## Tests
    
    Ran:
    
    - `just fmt`
    - `cargo test -p codex-tui`
    
    At the moment, the red Windows `rust-ci` failures are due to existing
    `codex-core` `apply_patch_cli` stack-overflow tests that also reproduce
    on `main`. The `/title`-specific `codex-tui` suite is green.