## Why
Incomplete responses such as `max_output_tokens` were classified as stream errors, allowing retries and compaction model fallback after the response had hit its output limit.
## What changed
Introduce `ResponseIncomplete` errors that preserve the server-provided reason and stop stream processing immediately. Make these errors non-retryable and stop compaction without falling back to the selected model. Record incomplete responses separately in sampler failure metrics.
## Testing
Add regression tests that verify incomplete responses surface a terminal error without retries over SSE and WebSocket, and that compaction stops without retrying or switching models for both local and remote compaction.
GitOrigin-RevId: 6e107d441b9bf03fa47ea47b88eeb94b71a9f729
## Why
Repeated turn diff notifications can print the same file changes multiple times, including after an unrelated command.
## What changed
Track the last diff and print nonempty updates only when they differ from the previous notification. Remember empty updates so a restored diff prints again, and reset the tracked diff when a new turn starts.
## Testing
Add a stderr snapshot test covering repeated, changed, empty, restored, and new-turn diffs. Add an integration test that applies one edit, runs an unrelated command, and verifies that the diff appears exactly once.
GitOrigin-RevId: db0a2aa8b77b800ca661e7d1314ed1e571743e74
## Why
Hermetic LLVM targets the GNU ABI on Windows even when an MSVC platform is selected. Native MSVC builds need the runner's MSVC toolchains and SDK environment.
## What changed
- Register the local x64 and ARM64 C++ toolchains in `ci-windows-msvc`.
- Apply `--config=ci-windows-msvc` to the native Windows Bazel test job.
- Allow the native Windows test job to run on `workflow_dispatch` as well as pushes to `main` so toolchain changes can be tested manually.
GitOrigin-RevId: b9fbd3f2bba8a3a8bf226cafda19a921c8738acd
## Why
RGB and extended indexed theme colors cannot be displayed directly on 16-color terminals, causing status line items to lose their color accents.
## What changed
Use each status line item's existing ANSI fallback accent when its theme foreground requires RGB or an indexed color beyond the first 16 colors.
## Testing
Add regression coverage for uncolored output with `FORCE_COLOR=0` and ANSI status line accents with `FORCE_COLOR=1`. Give the RGB styling test explicit terminal colors so it consistently exercises true-color behavior.
GitOrigin-RevId: 213ca5c6c366f0a3c696aab256a0b146558a2837
## Why
`TERM_SESSION_ID` is not specific to Apple Terminal. Treating it as an Apple Terminal identifier can mask Windows Terminal detection and the `TERM` fallback.
## What changed
Remove the `TERM_SESSION_ID` detection heuristic. Apple Terminal remains detectable through `TERM_PROGRAM=Apple_Terminal`.
## Testing
Update tests to cover Windows Terminal detection and the `TERM` fallback when `TERM_SESSION_ID` is present, and Apple Terminal detection with its version and user-agent token.
GitOrigin-RevId: 27db11cb7bcca8f94888f9e21a6cdfcf31561b1b
## Why
Pending requests can outlive a session switch, and different threads or connections can reuse request IDs. Replies and resolution notifications must stay associated with the request that prompted them.
## What changed
- Retain the original app-server reply handle for pending and buffered requests, including requests replayed after thread attachment or session reset.
- Scope user input, MCP elicitation, and user verification bookkeeping by thread, and send user input answers to the requesting thread.
- Keep background resolution notifications from dismissing foreground prompts.
- Consume failed replies to closed connections and clear pending replay state without falling through to another request route.
## Testing
Add WebSocket regression tests for direct and buffered approvals with colliding request IDs and replies to closed connections. Extend coverage for foreground prompt preservation and thread-scoped user verification cancellation.
GitOrigin-RevId: 541acb9910e92f6f2e83c27d2a2384185d4f8fec
## Why
Several configuration toggles required restarting Codex, and settings search only filtered the current group. Narrow terminals also truncated setting values and descriptions.
## What changed
- Apply animations, composer stars, paste detection, automatic recaps, and tips without restarting Codex. Update active motion effects and paste detection when their preferences change.
- Group animations and composer stars in an Effects picker that refreshes after saving and requires animations for composer stars.
- Search across all configuration groups, show each result's group, and preserve the query when switching groups.
- Keep setting values visible in narrow terminals and show the selected description below the list. Reserve space to keep the panel height stable and tailor footer hints to the selected action.
- Simplify configuration notices and omit routine save confirmations.
## Testing
Add and update tests and snapshots for live preference saves while offline, paste detection updates, Effects picker refreshes, global search, and stable panel height at narrow widths.
GitOrigin-RevId: 83773da2f6457ce461ef16f0cddde0df640a36c3
## Why
Managed runtime package registration errors lacked the terminal status, separate async and deployment error codes, and deployment activity ID needed to diagnose failures.
## What changed
Include these diagnostics in registration errors and distinguish failures in `GetResults`, the `ExtendedErrorCode` getter, and deployment itself. Preserve the original completion error; failures to read diagnostic fields do not turn successful registration into failure. Keep free-form Windows error text out of diagnostic summaries.
## Testing
Add unit tests for distinct async and deployment errors, failed or canceled result retrieval, and diagnostic getter failures, including preservation of native error codes and omission of free-form diagnostic text.
GitOrigin-RevId: 7f3a46741304ef04f5c3e2aa575bcfc4392dff62
## What changed
Add a Linux app-server integration test that resumes a saved read-only thread after the default permissions change to `:danger-full-access`. Verify that the live network proxy honors restored grants, requests approval for a new host, persists the approved rule, and reuses it without another approval.
The test also verifies that proxied requests succeed while direct access remains blocked.
GitOrigin-RevId: 08f63efb8752d738df0ee97e4e98c3366ae54f56
## Why
Restoring unnamed thread permissions after configuration loading leaves network proxy initialization and permission validation using the configured default. A saved read-only thread should also resume when that default is incompatible with current managed requirements.
## What changed
Apply eligible saved permission profiles during configuration loading, before network preparation and final validation. Keep explicit permission overrides and managed requirements authoritative, preserve managed deny-read restrictions, and reject saved external enforcement or materialized filesystem grants. Include the saved profile in the app-server's prepared resume configuration state.
## Testing
Add regression coverage for resuming saved read-only permissions with an incompatible full-access default and for retaining managed, remembered, and newly approved network domains in the restored profile's proxy allowlist.
GitOrigin-RevId: 73e32b0a31ac678fd3f60a8ccf8fa9df627f16c3
## Why
Windows and WSL can share `CODEX_HOME` without sharing a lock namespace, allowing cleanup to remove another platform's live helpers. Older clients can also clean helpers stored under the shared `tmp/arg0` root.
## What changed
Create helpers under `CODEX_HOME/tmp/arg0-<os>` and limit stale-directory cleanup to that operating system's root. Keep permission discovery compatible with both the current platform's root and legacy `tmp/arg0` directories, while ignoring other platforms' aliases.
## Testing
Add regression coverage for cleanup isolation, live helper preservation during legacy cleanup, and selection of the first session alias directory from either supported root.
GitOrigin-RevId: f34292748b5b1d3c25629604d849db4b133dfa3a
## Why
Local message boards were scoped to an agent tree. Independently created Codex runtimes need a way to share a board while receiving different access permissions.
## What changed
- Add `LocalBoard` and `LocalBoardConnection` so hosts can supply read-only or read-write access through `thread_extension_init`, including for isolated, ephemeral runtimes.
- Allow read-only connections to read and manage their own subscriptions; reject posting, replying, channel creation, and changes to another agent's subscriptions. Expose effective permissions in channel discovery.
- Use unique runtime paths and require matching board IDs and canonical database paths when resolving agents or delivering notifications.
- Document explicit extension installation and connection setup for new runtimes, cold resumes, and forks.
## Testing
Add a scenario and context snapshot covering an independent writer and isolated Guardian sharing a board through a symlink alias, read-only permission denials, subscription and explicit notifications, and rejection of notifications to an unconnected runtime before a post is written.
GitOrigin-RevId: f92410c3a5c6a46920c3e0e71849c85dc83d9c31
## Why
The generic `parent_compaction_error` classification metric does not distinguish serialization failures, oversized compactions, and unusable compactions.
## What changed
Record separate `failure_reason` values for each case: `parent_compaction_serialization`, `parent_compaction_oversized`, and `parent_compaction_unusable`.
## Testing
Extend parent-compaction reuse tests to cover unusable checkpoints in parent-context mode and assert specific failure reasons. Verify rejected compactions receive the maximum risk score, provide no cached approval, and do not reuse stale context.
GitOrigin-RevId: 103c4173b2ebbdc33eb71bce7f8ecb56f73055f6
## Why
Reading `OPENAI_API_KEY` directly bypasses login credentials reloaded by `AuthManager`.
## What changed
Use the API key from `AuthManager`'s cached authentication for Guardian decisions when the provider is `openai` and has no custom base URL. Keep `CODEX_GUARDIAN_DECISIONS_API_KEY` as the highest-priority override.
## Testing
Add a regression test covering a reloaded API-key login, override precedence, and rejection of the login-key fallback for a custom base URL. Assertions avoid printing credentials on failure.
GitOrigin-RevId: 10b2e6c28d3268c3808c25b2be94d9b6c31f597a
## Why
`unsafe-libyaml` is unmaintained and has no patched release. It remains a transitive dependency through `serde_yaml`.
## What changed
Add `RUSTSEC-2024-0449` to the ignore lists in `codex-rs/.cargo/audit.toml` and `codex-rs/deny.toml`. Document the dependency path and require removing the exception when the affected users migrate off `serde_yaml`/`unsafe-libyaml`.
GitOrigin-RevId: 6f4cf32e55d2877d90bf00d2c12a1c85f18d229e
## Why
With `multi_agent_v2.disable_direct_message` enabled, an unavailable agent message board could cause tool router construction to reject the turn.
## What changed
Remove the requirement that the router expose the board's `post` tool. Unavailable board calls return an unsupported-call error to the model, allowing the turn to continue.
## Testing
Update scenario coverage for a disabled board feature, legacy agents, and ephemeral sessions. Assert that unavailable board calls return an error to the model, that `post`, `send_message`, and `followup_task` are not advertised, and that no board database is created.
GitOrigin-RevId: cb9571459c128d84c3c96f185e70c404e0463473
## What changed
Remove eight tests covering experimental API schema filtering and marking,
end-of-file unified diffs, MCP prompt auto-approval, and local-link regex
initialization. Remove the associated unused test imports and regex coverage
comment. Runtime behavior is unchanged.
GitOrigin-RevId: 91f59cab82393d43000eadf4e7c55e3a6ec2aa14
## What changed
Add a unified execution test where `exec_command` yields a session and a subsequent `write_stdin` poll completes after the remote process exits while its output stream remains open. Verify that the poll returns the delayed output and exit code, emits the command completion event, and removes the background session without issuing a `process/read` request.
GitOrigin-RevId: 3a316eb9f6b29682da81a2ecbdda52f659f4b792
## Why
A remote process can exit while its output stream remains open, leaving the exit watcher waiting and delaying `ExecCommandEnd` even after output collection finishes.
## What changed
Cancel the process output token after final collection or polling, on one-shot cancellation, and after confirmed termination. This releases the exit watcher while allowing delayed output to be collected before the final poll completes.
## Testing
Add remote process event tests for output streams that remain open at the collection deadline, during interruption, and during explicit termination. Assert that `ExecCommandEnd` preserves the exit code and aggregated output, background terminals are cleared, and interruption and termination require no extra `process/read` requests.
GitOrigin-RevId: 8346e5ce446280915b6e2ffa362fcfd79280bfff
## Why
`Ctrl+V` previously attempted only image paste, so a text-only clipboard produced an image-paste error. `Shift+Insert` did not use the clipboard paste path.
## What changed
- On Windows, let `Ctrl+V` and `Shift+Insert` paste images first, then read clipboard text asynchronously when no image is available. Keep clipboard access errors distinct from missing images.
- Allow keyboard paste into composer selections and active history or Vim search queries, including inline mode with right-click paste disabled.
- Flush buffered typing before explicit paste to preserve input order. Discard pending clipboard text when the thread or editable target changes, while allowing shortcut releases and repeated paste shortcuts to leave the read pending.
## Testing
Extend shortcut and clipboard-worker tests to cover text fallback, multiline Unicode text, stale-read cancellation, shortcut releases and repeats, and read-only drafts. Add assertions for history-search preview stability and selection changes.
GitOrigin-RevId: 080c1c05a4587e325cea938a6e28c646b9ac5837
## Why
After a thread was archived externally, the TUI still advertised the Left-arrow agents shortcut, but pressing it in an empty composer did not open the agents view.
## What changed
Reuse the agents navigation handler when connected to an unavailable thread. Preserve the existing empty-composer and editor guards, and require a key press so repeated Left-arrow events do not open the view.
## Testing
Add a regression test for external thread archiving that verifies draft editing, the shortcut hint, ignored key repeats, and opening the agents command center, with a snapshot of the resulting view.
GitOrigin-RevId: a3f36b42bafee948ed7f5842fcb425e414d7e024
## Why
Startup configuration warnings can reflect settings from when the background server started, even after those settings have been fixed. A restart lets users refresh the server without leaving the TUI.
## What changed
- Add a confirmed restart action to `/daemon`, warning that active or queued work in other chats may be interrupted. Reconnect automatically and let an in-progress restart finish if the TUI exits.
- Verify that Codex manages a local server before enabling restart, including servers discovered with auto-start disabled and those started by `codex agents`.
- Show a restart hint on the first startup configuration warning for managed servers, preserving the original diagnostic for copying and dismissal.
- Repaint the full surface of centered dialogs to restore background colors over cached blank cells.
## Testing
Add CLI integration coverage for agents startup and restarting a discovered daemon with auto-start disabled. Extend TUI tests for confirmation, cancellation, unmanaged servers, warning hints and dismissal, and dialog background rendering.
GitOrigin-RevId: 8e4319fab84f13bf6e7335deb93364fccaff14a7
## What changed
Remove `Terminal::autoresize` and the fallible `try_draw` helpers. Render directly in `draw_with_size`, retaining automatic size updates and the existing buffer flush and cursor handling.
Update the cursor-ordering test to use `draw`, preserving its assertion that the cursor moves before it is shown.
GitOrigin-RevId: 5889e9603d772945660e7ae35690d2b7326b10ae
## Why
Dropping the event receiver before shutdown lets an in-flight notification fail delivery and terminate the worker before it sends the WebSocket close frame.
## What changed
Keep the event receiver alive until `RemoteAppServerClient::shutdown` finishes waiting for the worker, allowing it to process the shutdown command and close the WebSocket.
## Testing
Extend regression tests to verify that an event remains deliverable after shutdown is queued and that the server receives `Message::Close(None)` with an extra notification in flight.
GitOrigin-RevId: ba14bc97ffa3453b7b59660144db6da9e688983d
## What changed
Add `Alt+Left` / `Alt+Right` to the shortcut overlay's Session group as “Subagents (empty prompt)”, using the existing previous/next agent binding labels.
## Testing
Update shortcut help snapshots for narrow and wide layouts, configured bindings, and running sessions to include the new entry.
GitOrigin-RevId: 534be840e1fe5646cfb9465e78049322d7e72b4c
## Why
Turn tips are visible outside transcript history, but their text could not be selected for copying.
## What changed
Register rendered working and completion tip rows for mouse selection. Keep tips in place when selection hints or copy status appear, and use the hint “Selecting text · esc cancel”.
## Testing
Extend mouse-selection tests and snapshots to cover selecting `/help` in working and completion tips with copy-on-select enabled, and clearing the selection when a working tip disappears.
GitOrigin-RevId: 25b3f02e7e93a53e777de455943d47fbab388ff1
## Why
Cold resume can replace saved unnamed permissions with current configuration defaults or recover an executor's permissions from turn context. A first-turn context can also predate an acknowledged settings update.
## What changed
- Restore eligible unnamed permission profiles from settings snapshots owned by the resumed thread, honoring explicit caller overrides and current managed requirements.
- Use owned snapshots as the authority for named permission profiles and reapply workspace permissions for the resumed workspace roots.
- Persist a thread-owned settings checkpoint after the first turn's context, serialized with settings updates so older checkpoints cannot supersede newer settings.
## Testing
Extend regression coverage for cold resume with changed defaults, managed permission restrictions, workspace-root overrides, foreign snapshots, and settings updates during first-turn processing.
GitOrigin-RevId: e411d9fd3d586a4162498c9c77c4184459071bd1
## Why
Startup recovery treated a buffered Vim Replace key as an insertion, so the recovered unsent text could differ from the eventual edit. Replacing the first character of `abcd` with `X` should recover `Xbcd`, not `Xabcd`.
## What changed
Preserve the distinction between held typed keys and buffered pastes when building recovery snapshots. Apply Vim Replace semantics to held keys, including mouse selections and the bash-mode prefix offset, without consuming live pending input. Keep buffered pastes literal so the live paste path retains responsibility for large-paste and image classification.
## Testing
Add regression tests for recovery after startup draft handoff and replacement of mouse-selected text with and without the bash-mode prefix. Verify that taking a recovery snapshot leaves live input unchanged and that flushing the held key produces the same text.
GitOrigin-RevId: 97fada635ad9f0f01042b8e96020372d6df9d951
## Why
Piping `codex plugin list` into a consumer such as `head` can close stdout before the full catalog is written, causing a panic.
## What changed
Write both table and JSON output through a fallible writer and treat broken pipes during writing or flushing as success. Continue propagating other output errors.
## Testing
Add unit tests for write and flush failures in both output formats, plus CLI tests that close stdout early and verify a successful exit without a panic.
GitOrigin-RevId: cc4a64e10ad723d26b6de9e731efdc534dbee492
## Why
Server request IDs can be reused across connections. Retained replies need to target the connection that emitted the request, even if the UI selection later changes.
## What changed
- Expose `AppServerReplyHandle` through `AppServerRequestHandle::server_request_reply_handle`, capturing the originating client and request ID for explicit `resolve` or `reject` calls.
- Share single-use completion state across clones so only the first reply is submitted. Dropping a handle sends nothing; stale connections return I/O errors without retrying or switching connections.
- Route existing client reply methods through request handles and use the new API in the managed worktree model test.
## Testing
Add in-process and WebSocket tests for replies on separate connections with identical request IDs, rejection routing, duplicate completion, and stale handles after worker shutdown. Also check that debug output redacts handle details.
GitOrigin-RevId: 940d0951ab67529b05919ca8ec7adb5813834b8c
## What changed
- Group preferences into Appearance, Notifications, Input, Sessions, and Text selection tabs, with search and links to existing theme, status line, terminal title, and keyboard editors.
- Persist preference changes to the selected local configuration file, apply supported changes immediately, and show save errors, configuration overrides, and restart requirements in the panel.
- Add a delayed notification test and controls for notification timing while preserving custom event filters.
- Add `tui.copy_on_select_clear_selection`, disabled by default, to clear transcript selection highlights only after confirmed automatic clipboard delivery.
- Keep local configuration editors usable while disconnected and prevent held activation keys or buffered input from triggering actions across editor and reconnect transitions.
## Testing
Add regression tests and rendering snapshots for panel navigation, search, dependency states, editor handoffs, offline persistence, notification timers, custom filter preservation, and confirmed-copy deselection.
GitOrigin-RevId: a16d218046060fcb6e61705a803fcd9297266e6e
## What changed
- Update the pinned `rmcp` dependency and Cargo/Bazel lockfiles, and migrate MCP handlers and fixtures to `ClientConfig` and `ServerConfig`.
- Stop requiring responses for cancelled elicitation requests in cancellation tests while retaining checks for cleanup and continued connection usability.
- Handle client disconnects during WebSocket writes in the TUI test server, use an asynchronous HTTP mock for loopback proxy testing, and improve remote executor test diagnostics and the Windows subprocess fixture.
- Use `invalid_prompt` for the memory worker failure fixture.
## Testing
Add a regression test covering transport EOF during both form elicitation and user verification. Keep the client alive while checking that pending response channels close, the timeout pause clears, and the service exits with `QuitReason::Closed`.
GitOrigin-RevId: c0166b83fab3b59d84a5207c6630cb6adcf3b230
## Why
An unfinished terminal control sequence can prevent buffered input from draining before a startup modal appears. Propagating that timeout aborts modal handling instead of keeping the screen available for an explicit user decision.
## What changed
Treat input-drain timeouts as a reason to keep startup modal input quarantined. Discard key, paste, and mouse events while retrying the drain, and continue processing server events. Preserve this protection when another request resolves and when the agent overview is restored after reconnecting.
## Testing
Add a Unix PTY regression test covering unfinished control sequences, queued approval and overview shortcuts, unrelated request resolution, and overview reconnection. Verify that buffered input cannot answer an approval or create a task, while fresh shortcuts work after the drain completes.
GitOrigin-RevId: 476bedbd45f13a15d0019e4ce2e875406d4a53ca
## Why
WSL clipboard reads previously launched PowerShell for every paste. Process creation can hang under WSL and stall the shared clipboard worker.
## What changed
- Reuse a persistent PowerShell reader on a dedicated thread, keeping clipboard requests bounded by their deadlines and restarting the reader after errors.
- Prewarm the reader at startup when right-click paste is allowed on WSL, without accessing clipboard contents.
- Use length-framed UTF-8 responses to preserve whitespace and distinguish consecutive pastes while enforcing message size limits.
## Testing
Update the command-reader test to cover consecutive responses from one process, large clipboard text, UTF-8 and whitespace preservation, and read timeouts.
GitOrigin-RevId: 36af338097d6b178ab4887faa5918240c47e1515
## Why
Raw pastes can arrive as thousands of character, Enter, and Tab events. Redrawing the entire owned transcript before each buffered key defeats the composer's paste batching.
## What changed
Skip those redraws while the composer is capturing a paste burst. Continue refreshing geometry immediately for transcript interactions, shortcuts, and non-text keys, including Enter when an accepted Find owns it.
## Testing
Add regression tests and a render snapshot covering multiline raw paste with tabs and Korean text, deferred rendering until the burst flushes, and a single submission of the complete pasted text. Also verify that an accepted Find still handles Enter during a paste burst without submitting the draft.
GitOrigin-RevId: 49d89958a89c165249322463e6075377c517bd8e
## Why
Large test futures can occupy their caller's stack frame even when passed directly to `Box::pin`.
## What changed
- Add a non-inlined `box_future` helper and `boxed_future!` macro to construct and box futures outside the caller's poll frame. Use them for heavyweight TUI fixtures and test scenarios.
- Return the shared `App` fixture as `Box<App>` to keep it on the heap.
- Treat `ConnectionAborted` as a closed connection in the realtime speech test server, alongside `BrokenPipe` and `ConnectionReset`.
GitOrigin-RevId: 7bbf2020a5ec12bae8e0365ddf5641deef93b544
Extend `hung_grpc_stdio_host_is_reaped_and_the_session_recovers` to assert that the first execution after host replacement reports lost stored values and running cells. Verify that this rejected execution does not store a value and that the next execution succeeds.
GitOrigin-RevId: 2fc5550c32774321a969b56ba59153de0e497f19
## Why
Progress updates change task timestamps, causing recency-based sorting to move rows within the same status group on refresh.
## What changed
Retain each task's relative order while it remains in the same status group. Append new tasks and tasks that change groups after existing rows in their destination group. Forget the order of removed tasks so rediscovered tasks behave like new arrivals.
Search and status filters preserve the retained order, and pinned tasks continue to use their explicit ordering.
## Testing
Add regression tests and a snapshot covering progress refreshes, selection stability, arrivals, status transitions (including changes caused by descendants), removal and rediscovery, filters, and pins.
GitOrigin-RevId: 54008a66de5c4cf509759e25ee8c1cb6e2a70100
## Why
Client-supplied tool outputs can carry task instructions. Even when marked with `retain: true`, these instructions could be trimmed before compaction and disappear from the compacted history.
## What changed
Add the disabled-by-default `retain_client_tool_outputs` feature to honor retention for explicitly marked, named `function_call_output` items without a `call_id`.
- Preserve eligible outputs in remote compaction v2 and when starting a new context window, keeping their original role.
- Stop emergency tool-output trimming at a retained output.
- Share the existing 64,000-token retention budget, keeping outputs whole and dropping an oversized output and older items rather than partially truncating it.
- Place initial context before retained standalone outputs and account for their images in retained-image counts.
## Testing
Add a scenario covering enabled and disabled retention, emergency trimming, oversized-output handling, and preservation of the latest instruction after compaction and cold resume. Verify that retention annotations stay out of model requests.
GitOrigin-RevId: 449179670e4d2be2623928700738758e43b5dc1a
The initial user item seals realtime transcript segments, so starting speech before it completes can split the segment under test. Wait for its `item/completed` notification and assert that it is a `ThreadItem::UserMessage` before triggering speech, so only the steering under test can split that segment.
GitOrigin-RevId: 932443f4a0d6c4284cf95f44e64912506769a180
## Why
Replacing a gRPC code-mode runtime loses stored values and running cells. Silently continuing after reconnection hides that loss, while prior external tool operations may already have completed.
## What changed
- Capture the runtime generation when `execute` and `wait` calls are created. If recovery replaces it, reject those calls with an explicit reset error, including concurrent calls and calls first polled after recovery.
- Explain the lost state and advise inspecting prior tool results before retrying. Allow a fresh `exec` call to continue on the replacement runtime.
- Keep `terminate` from reopening the runtime so cleanup cannot hide a reset from the next request.
## Testing
Extend gRPC recovery tests to cover reset errors after host restarts, missing sessions, and route loss, rejection of queued calls, and successful fresh execution with cleared stored state.
GitOrigin-RevId: 914cab3bb45e30a3f3b2afacb5631e42b18e21b0
## What changed
Clicking a pinned prompt header with an unmodified left click now scrolls the transcript to the original prompt. The click also ends text selection, cancels search, and clears activity focus. Track the prompt by entry identity so navigation remains correct when history is prepended.
## Testing
Update the prompt-header snapshot test to navigate by clicking the header after prepending history and verify that the original prompt becomes visible.
GitOrigin-RevId: dea811693853e3740909ab675b1339f701e01e02
## Why
Voice failure metrics lacked cause and lifecycle phase, and session durations were recorded before the final outcome was known. A failed control send could also overwrite a more specific WebRTC error.
## What changed
- Tag `codex.voice.session.failure` with bounded `cause` and `phase` values, recording at most one failure per session.
- Capture duration when stopping and emit `codex.voice.session.duration` at cleanup with a `success` or `failure` outcome.
- Carry typed WebRTC errors into the TUI, preserve existing errors when control sends fail, and avoid duplicate errors after startup failure.
- Record app-server disconnect failures for background voice sessions as well as the visible session.
## Testing
Add coverage for terminal outcome and failure metric attributes, preservation of specific startup and audio-session errors, and startup failures without duplicate control-channel errors.
GitOrigin-RevId: 5aeda6e766093e3fce7206560aa83b6f7770dddb
## Why
A catchable exception lets JavaScript continue after `exit()`, including in `catch`, `finally`, and queued promise callbacks. Exiting should finish the cell successfully without further output or state changes.
## What changed
- Terminate V8 execution when `exit()` is called and complete the cell even if its module promise remains pending.
- Guard host callbacks against effects after exit, including when getters or value conversion request exit.
- Preserve stored writes made before exit and suppress errors when exit occurs during exception formatting.
## Testing
Add regression tests for synchronous and asynchronous exit, timers, parallel promises, value conversion, exception getters, and resuming after a yield and tool response. Verify that only prior output and stored writes survive, and separately exercise host guards while JavaScript continues running.
GitOrigin-RevId: e9487ba65ef0358612c5009bd26953b786a12798
## What changed
- Add the disabled-by-default `output_token_replay` feature to request `output.encrypted_content` from OpenAI providers.
- Preserve encrypted message and tool-call output, message and function-call status, and output-text `annotations` and `logprobs` through history and replay. Update the generated protocol schemas and SDK types.
- Strip output ciphertext from requests to other providers while retaining it in stored history, including after replay is disabled. Remove encrypted content from memory extraction inputs.
## Testing
Add integration coverage for the feature/provider combinations, metadata replay across follow-up requests, and history preservation when resuming with replay disabled.
GitOrigin-RevId: 77729a021b6771933402aebe74ece8eb39c057e2
## What changed
Add `model_messages.tools.incremental_tools` overrides for the update hint, tool and namespace removal headers, and namespace instruction update and clearing messages. Missing, null, or over-512-byte values fall back to bundled wording; empty strings omit static text while retaining runtime names and instructions.
Substitute `{name}` in namespace message templates and append runtime instructions verbatim. Wording changes alone do not trigger tool catalog updates.
## Testing
Extend unit tests and MCP request-history snapshots to cover custom wording, empty notices, tool removal and restoration, and namespace instruction changes and clearing without repeating unchanged tools or notices.
GitOrigin-RevId: 22dea0a6fb4cfcd646f5e65346424834c8b7d5a2
## Why
Lifecycle status reporting was limited to direct iTerm2 sessions. OSC 7501 lets other terminals receive Codex's program state.
## What changed
- Emit OSC 7501 with `app=codex` and states `idle`, `working`, or `blocked` whenever stdout is a terminal, including multiplexed sessions. Report `blocked` when user action is required.
- Continue emitting iTerm2's OSC 21337 status and bounded activity details in direct iTerm2 sessions.
- Clear status before handing the terminal to an external program, as well as on suspension and exit, and re-emit the current state after returning.
## Testing
Add coverage for OSC 7501 encoding, combined iTerm2 output, clearing both protocols, and protocol selection across terminal and multiplexer environments. Update lifecycle tests and status snapshots for the new protocol.
GitOrigin-RevId: 6d2a6885687b0e7af825e954fab72db0765c9a07
## What changed
Expose `Environment::observe_connection_attempts` and `ConnectionAttemptOutcome` to report elapsed time and success, failure, or cancellation for initial connections. Measure from the end of provisioning through client installation, including connection retries.
The first registered observer wins. Past attempts and reconnections are omitted.
## Testing
Extend tests to assert failure followed by success when startup is retried, and a single cancellation notification when an environment is replaced during startup.
GitOrigin-RevId: 88300f38dcf9428b824c5ff36aa1b40d7d466b6f
## What changed
- Add `grpc+stdio://` as a host transport and the disabled-by-default `code_mode_host_grpc` feature flag to select it.
- Share a lazy HTTP/2 channel and host process across code-mode sessions while keeping session state isolated.
- Use HTTP/2 keepalives to detect unresponsive hosts, kill and reap disconnected children, and spawn a fresh host on reconnect. Exit the host when its stdio connection closes.
## Testing
Add coverage for shared-host session isolation, host exit on stdin EOF, and recovery after an unresponsive host is reaped. Exercise nested tool calls with both legacy stdio and gRPC stdio, asserting that the feature flag selects the expected transport.
GitOrigin-RevId: 31389d8540de236b8e0571d3c24e29e117b75c4a
## Why
Graceful shutdown rejects new sessions with an invalid-request error. Give clients a structured shutdown reason and show command center users why session creation is paused.
## What changed
- Add `data: {"reason":"serverShuttingDown"}` to app-server shutdown admission errors while retaining JSON-RPC code `-32600`.
- Show a dedicated shutdown message explaining the wait for active turns and automatic reconnection for non-embedded servers. Recognize older servers by their exact draining message only when error data is absent, and preserve retained-worktree cleanup guidance.
- Keep the command center reconnect presentation when a shutdown error covers the initial overview and no conversation is open.
## Testing
Extend admission and WebSocket shutdown assertions, add embedded and daemon shutdown message snapshots, and cover reconnection with a shutdown error over the initial command center.
GitOrigin-RevId: f167144c0ddc77872afdf3daac8bb1c89f3425b4
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