## Summary
- remove `tui_app_server` handling for legacy app-server notifications
- drop the local ChatGPT auth refresh request path from `tui_app_server`
- remove the now-unused refresh response helper from local auth loading
Split out of #15106 so the `tui_app_server` cleanup can land separately
from the larger `codex-exec` app-server migration.
As part of moving the TUI onto the app server, we added some temporary
handling of some legacy events. We've confirmed that these do not need
to be supported, so this PR removes this support from the
tui_app_server, allowing for additional simplifications in follow-on
PRs. These events are needed only for very old rollouts. None of the
other app server clients (IDE extension or app) support these either.
## Summary
- stop translating legacy `codex/event/*` notifications inside
`tui_app_server`
- remove the TUI-side legacy warning and rollback buffering/replay paths
that were only fed by those notifications
- keep the lower-level app-server and app-server-client legacy event
plumbing intact so PR #15106 can rebase on top and handle the remaining
exec/lower-layer migration separately
- emit a typed `thread/realtime/transcriptUpdated` notification from
live realtime transcript deltas
- expose that notification as flat `threadId`, `role`, and `text` fields
instead of a nested transcript array
- continue forwarding raw `handoff_request` items on
`thread/realtime/itemAdded`, including the accumulated
`active_transcript`
- update app-server docs, tests, and generated protocol schema artifacts
to match the delta-based payloads
---------
Co-authored-by: Codex <noreply@openai.com>
### 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.
## 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 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>
- Move the auth implementation and token data into codex-login.
- Keep codex-core re-exporting that surface from codex-login for
existing callers.
---------
Co-authored-by: Codex <noreply@openai.com>
- 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>
## Summary
Persist Stop-hook continuation prompts as `user` messages instead of
hidden `developer` messages + some requested integration tests
This is a followup to @pakrym 's comment in
https://github.com/openai/codex/pull/14532 to make sure stop-block
continuation prompts match training for turn loops
- Stop continuation now writes `<hook_prompt hook_run_id="...">stop
hook's user prompt<hook_prompt>`
- Introduces quick-xml dependency, though we already indirectly depended
on it anyway via syntect
- This PR only has about 500 lines of actual logic changes, the rest is
tests/schema
## Testing
Example run (with a sessionstart hook and 3 stop hooks) - this shows
context added by session start, then two stop hooks sending their own
additional prompts in a new turn. The model responds with a single
message addressing both. Then when that turn ends, the hooks detect that
they just ran using `stop_hook_active` and decide not to infinite loop
test files for this (unzip, move codex -> .codex):
[codex.zip](https://github.com/user-attachments/files/26075806/codex.zip)
```
› cats
• Running SessionStart hook: lighting the observatory
SessionStart hook (completed)
warning: Hi, I'm a session start hook for wizard-tower (startup).
hook context: A wimboltine stonpet is an exotic cuisine from hyperspace
• Cats are tiny zen wizards, my friend: equal parts nap, mystery, and chaos. If you want, we can talk
cat facts, cat breeds, cat names, or build something cat-themed in this repo.
• Running Stop hook: checking the tower wards
• Running Stop hook: sacking the guards
• Running Stop hook: hiring the guards
Stop hook (completed)
warning: Wizard Tower Stop hook reviewed the completed reply (177 chars).
Stop hook (blocked)
warning: Wizard Tower Stop hook continuing conversation
feedback: cook the stonpet
Stop hook (blocked)
warning: Wizard Tower Stop hook continuing conversation
feedback: eat the cooked stonpet
• Stonpet’s cooked, aloha style: flash-seared over a blue quasiflame, glazed with nebula salt, and
rested until the hyperspace juices settle.
Now we eat with gratitude, my friend. One mindful bite in, and the flavor is pure cosmic surf:
smoky, bright, and totally out of this dimension.
• Running Stop hook: checking the tower wards
• Running Stop hook: sacking the guards
• Running Stop hook: hiring the guards
Stop hook (completed)
warning: Wizard Tower Stop hook reviewed the completed reply (285 chars).
Stop hook (completed)
warning: Wizard Tower Stop hook saw a second pass and stayed calm to avoid a loop.
Stop hook (completed)
warning: Wizard Tower Stop hook saw a second pass and stayed calm to avoid a loop.
```
1. Added SessionSource::Custom(String) and --session-source.
2. Enforced plugin and skill products by session_source.
3. Applied the same filtering to curated background refresh.
This PR adds a new `thread/shellCommand` app server API so clients can
implement `!` shell commands. These commands are executed within the
sandbox, and the command text and output are visible to the model.
The internal implementation mirrors the current TUI `!` behavior.
- persist shell command execution as `CommandExecution` thread items,
including source and formatted output metadata
- bridge live and replayed app-server command execution events back into
the existing `tui_app_server` exec rendering path
This PR also wires `tui_app_server` to submit `!` commands through the
new API.
## Problem
The app-server TUI (`tui_app_server`) lacked composer history support.
Pressing Up/Down to recall previous prompts hit a stub that logged a
warning and displayed "Not available in app-server TUI yet." New
submissions were silently dropped from the shared history file, so
nothing persisted for future sessions.
## Mental model
Codex maintains a single, append-only history file
(`$CODEX_HOME/history.jsonl`) shared across all TUI processes on the
same machine. The legacy (in-process) TUI already reads/writes this file
through `codex_core::message_history`. The app-server TUI delegates most
operations to a separate process over RPC, but history is intentionally
*not* an RPC concern — it's a client-local file.
This PR makes the app-server TUI access the same history file directly,
bypassing the app-server process entirely. The composer's Up/Down
navigation and submit-time persistence now follow the same code paths as
the legacy TUI, with the only difference being *where* the call is
dispatched (locally in `App`, rather than inside `CodexThread`).
The branch is rebuilt directly on top of `upstream/main`, so it keeps
the
existing app-server restore architecture intact.
`AppServerStartedThread`
still restores transcript history from the server `Thread` snapshot via
`thread_snapshot_events`; this PR only adds composer-history support.
## Non-goals
- Adding history support to the app-server protocol. History remains
client-local.
- Changing the on-disk format or location of `history.jsonl`.
- Surfacing history I/O errors to the user (failures are logged and
silently swallowed, matching the legacy TUI).
## Tradeoffs
| Decision | Why | Risk |
|----------|-----|------|
| Widen `message_history` from `pub(crate)` to `pub` | Avoids
duplicating file I/O logic; the module already has a clean, minimal API
surface. | Other workspace crates can now call these functions — the
contract is no longer crate-private. However, this is consistent with
recent precedent: `590cfa617` exposed `mention_syntax` for TUI
consumption, `752402c4f` exposed plugin APIs (`PluginsManager`), and
`14fcb6645`/`edacbf7b6` widened internal core APIs for other crates.
These were all narrow, intentional exposures of specific APIs — not
broad "make internals public" moves. `1af2a37ad` even went the other
direction, reducing broad re-exports to tighten boundaries. This change
follows the same pattern: a small, deliberate API surface (3 functions)
rather than a wholesale visibility change. |
| Intercept `AddToHistory` / `GetHistoryEntryRequest` in `App` before
RPC fallback | Keeps history ops out of the "unsupported op" error path
without changing app-server protocol. | This now routes through a single
`submit_thread_op` entry point, which is safer than the original
duplicated dispatch. The remaining risk is organizational: future
thread-op submission paths need to keep using that shared entry point. |
| `session_configured_from_thread_response` is now `async` | Needs
`await` on `history_metadata()` to populate real `history_log_id` /
`history_entry_count`. | Adds an async file-stat + full-file newline
scan to the session bootstrap path. The scan is bounded by
`history.max_bytes` and matches the legacy TUI's cost profile, but
startup latency still scales with file size. |
## Architecture
```
User presses Up User submits a prompt
│ │
▼ ▼
ChatComposerHistory ChatWidget::do_submit_turn
navigate_up() encode_history_mentions()
│ │
▼ ▼
AppEvent::CodexOp Op::AddToHistory { text }
(GetHistoryEntryRequest) │
│ ▼
▼ App::try_handle_local_history_op
App::try_handle_local_history_op message_history::append_entry()
spawn_blocking { │
message_history::lookup() ▼
} $CODEX_HOME/history.jsonl
│
▼
AppEvent::ThreadEvent
(GetHistoryEntryResponse)
│
▼
ChatComposerHistory::on_entry_response()
```
## Observability
- `tracing::warn` on `append_entry` failure (includes thread ID).
- `tracing::warn` on `spawn_blocking` lookup join error.
- `tracing::warn` from `message_history` internals on file-open, lock,
or parse failures.
## Tests
- `chat_composer_history::tests::navigation_with_async_fetch` — verifies
that Up emits `Op::GetHistoryEntryRequest` (was: checked for stub error
cell).
- `app::tests::history_lookup_response_is_routed_to_requesting_thread` —
verifies multi-thread composer recall routes the lookup result back to
the originating thread.
-
`app_server_session::tests::resume_response_relies_on_snapshot_replay_not_initial_messages`
— verifies app-server session restore still uses the upstream
thread-snapshot path.
-
`app_server_session::tests::session_configured_populates_history_metadata`
— verifies bootstrap sets nonzero `history_log_id` /
`history_entry_count` from the shared local history file.
- this allows blocking the user's prompts from executing, and also
prevents them from entering history
- handles the edge case where you can both prevent the user's prompt AND
add n amount of additionalContexts
- refactors some old code into common.rs where hooks overlap
functionality
- refactors additionalContext being previously added to user messages,
instead we use developer messages for them
- handles queued messages correctly
Sample hook for testing - if you write "[block-user-submit]" this hook
will stop the thread:
example run
```
› sup
• Running UserPromptSubmit hook: reading the observatory notes
UserPromptSubmit hook (completed)
warning: wizard-tower UserPromptSubmit demo inspected: sup
hook context: Wizard Tower UserPromptSubmit demo fired. For this reply only, include the exact
phrase 'observatory lanterns lit' exactly once near the end.
• Just riding the cosmic wave and ready to help, my friend. What are we building today? observatory
lanterns lit
› and [block-user-submit]
• Running UserPromptSubmit hook: reading the observatory notes
UserPromptSubmit hook (stopped)
warning: wizard-tower UserPromptSubmit demo blocked the prompt on purpose.
stop: Wizard Tower demo block: remove [block-user-submit] to continue.
```
.codex/config.toml
```
[features]
codex_hooks = true
```
.codex/hooks.json
```
{
"hooks": {
"UserPromptSubmit": [
{
"hooks": [
{
"type": "command",
"command": "/usr/bin/python3 .codex/hooks/user_prompt_submit_demo.py",
"timeoutSec": 10,
"statusMessage": "reading the observatory notes"
}
]
}
]
}
}
```
.codex/hooks/user_prompt_submit_demo.py
```
#!/usr/bin/env python3
import json
import sys
from pathlib import Path
def prompt_from_payload(payload: dict) -> str:
prompt = payload.get("prompt")
if isinstance(prompt, str) and prompt.strip():
return prompt.strip()
event = payload.get("event")
if isinstance(event, dict):
user_prompt = event.get("user_prompt")
if isinstance(user_prompt, str):
return user_prompt.strip()
return ""
def main() -> int:
payload = json.load(sys.stdin)
prompt = prompt_from_payload(payload)
cwd = Path(payload.get("cwd", ".")).name or "wizard-tower"
if "[block-user-submit]" in prompt:
print(
json.dumps(
{
"systemMessage": (
f"{cwd} UserPromptSubmit demo blocked the prompt on purpose."
),
"decision": "block",
"reason": (
"Wizard Tower demo block: remove [block-user-submit] to continue."
),
}
)
)
return 0
prompt_preview = prompt or "(empty prompt)"
if len(prompt_preview) > 80:
prompt_preview = f"{prompt_preview[:77]}..."
print(
json.dumps(
{
"systemMessage": (
f"{cwd} UserPromptSubmit demo inspected: {prompt_preview}"
),
"hookSpecificOutput": {
"hookEventName": "UserPromptSubmit",
"additionalContext": (
"Wizard Tower UserPromptSubmit demo fired. "
"For this reply only, include the exact phrase "
"'observatory lanterns lit' exactly once near the end."
),
},
}
)
)
return 0
if __name__ == "__main__":
raise SystemExit(main())
```
## Summary
- move `guardian_developer_instructions` from managed config into
workspace-managed `requirements.toml`
- have guardian continue using the override when present and otherwise
fall back to the bundled local guardian prompt
- keep the generalized prompt-quality improvements in the shared
guardian default prompt
- update requirements parsing, layering, schema, and tests for the new
source of truth
## Context
This replaces the earlier managed-config / MDM rollout plan.
The intended rollout path is workspace-managed requirements, including
cloud enterprise policies, rather than backend model metadata, Statsig,
or Jamf-managed config. That keeps the default/fallback behavior local
to `codex-rs` while allowing faster policy updates through the
enterprise requirements plane.
This is intentionally an admin-managed policy input, not a user
preference: the guardian prompt should come either from the bundled
`codex-rs` default or from enterprise-managed `requirements.toml`, and
normal user/project/session config should not override it.
## Updating The OpenAI Prompt
After this lands, the OpenAI-specific guardian prompt should be updated
through the workspace Policies UI at `/codex/settings/policies` rather
than through Jamf or codex-backend model metadata.
Operationally:
- open the workspace Policies editor as a Codex admin
- edit the default `requirements.toml` policy, or a higher-precedence
group-scoped override if we ever want different behavior for a subset of
users
- set `guardian_developer_instructions = """..."""` to the full
OpenAI-specific guardian prompt text
- save the policy; codex-backend stores the raw TOML and `codex-rs`
fetches the effective requirements file from `/wham/config/requirements`
When updating the OpenAI-specific prompt, keep it aligned with the
shared default guardian policy in `codex-rs` except for intentional
OpenAI-only additions.
## Testing
- `cargo check --tests -p codex-core -p codex-config -p
codex-cloud-requirements --message-format short`
- `cargo run -p codex-core --bin codex-write-config-schema`
- `cargo fmt`
- `git diff --check`
Co-authored-by: Codex <noreply@openai.com>
- close live realtime sessions on errors, ctrl-c, and active meter
removal
- centralize TUI realtime cleanup and avoid duplicate follow-up close
info
---------
Co-authored-by: Codex <noreply@openai.com>
Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
## Problem
Ubuntu/AppArmor hosts started failing in the default Linux sandbox path
after the switch to vendored/default bubblewrap in `0.115.0`.
The clearest report is in
[#14919](https://github.com/openai/codex/issues/14919), especially [this
investigation
comment](https://github.com/openai/codex/issues/14919#issuecomment-4076504751):
on affected Ubuntu systems, `/usr/bin/bwrap` works, but a copied or
vendored `bwrap` binary fails with errors like `bwrap: setting up uid
map: Permission denied` or `bwrap: loopback: Failed RTM_NEWADDR:
Operation not permitted`.
The root cause is Ubuntu's `/etc/apparmor.d/bwrap-userns-restrict`
profile, which grants `userns` access specifically to `/usr/bin/bwrap`.
Once Codex started using a vendored/internal bubblewrap path, that path
was no longer covered by the distro AppArmor exception, so sandbox
namespace setup could fail even when user namespaces were otherwise
enabled and `uidmap` was installed.
## What this PR changes
- prefer system `/usr/bin/bwrap` whenever it is available
- keep vendored bubblewrap as the fallback when `/usr/bin/bwrap` is
missing
- when `/usr/bin/bwrap` is missing, surface a Codex startup warning
through the app-server/TUI warning path instead of printing directly
from the sandbox helper with `eprintln!`
- use the same launcher decision for both the main sandbox execution
path and the `/proc` preflight path
- document the updated Linux bubblewrap behavior in the Linux sandbox
and core READMEs
## Why this fix
This still fixes the Ubuntu/AppArmor regression from
[#14919](https://github.com/openai/codex/issues/14919), but it keeps the
runtime rule simple and platform-agnostic: if the standard system
bubblewrap is installed, use it; otherwise fall back to the vendored
helper.
The warning now follows that same simple rule. If Codex cannot find
`/usr/bin/bwrap`, it tells the user that it is falling back to the
vendored helper, and it does so through the existing startup warning
plumbing that reaches the TUI and app-server instead of low-level
sandbox stderr.
## Testing
- `cargo test -p codex-linux-sandbox`
- `cargo test -p codex-app-server --lib`
- `cargo test -p codex-tui-app-server
tests::embedded_app_server_start_failure_is_returned`
- `cargo clippy -p codex-linux-sandbox --all-targets`
- `cargo clippy -p codex-app-server --all-targets`
- `cargo clippy -p codex-tui-app-server --all-targets`
- thread the realtime version into conversation start and app-server
notifications
- keep playback-aware mic gating and playback interruption behavior on
v2 only, leaving v1 on the legacy path
## Problem
The `/mcp` command did not work in the app-server TUI (remote mode). On
`main`, `add_mcp_output()` called `McpManager::effective_servers()`
in-process, which only sees locally configured servers, and then emitted
a generic stub message for the app-server to handle. In remote usage,
that left `/mcp` without a real inventory view.
## Solution
Implement `/mcp` for the app-server TUI by fetching MCP server inventory
directly from the app-server via the paginated `mcpServerStatus/list`
RPC and rendering the results into chat history.
The command now follows a three-phase lifecycle:
1. Loading: `ChatWidget::add_mcp_output()` inserts a transient
`McpInventoryLoadingCell` and emits `AppEvent::FetchMcpInventory`. This
gives immediate feedback that the command registered.
2. Fetch: `App::fetch_mcp_inventory()` spawns a background task that
calls `fetch_all_mcp_server_statuses()` over an app-server request
handle. When the RPC completes, it sends `AppEvent::McpInventoryLoaded {
result }`.
3. Resolve: `App::handle_mcp_inventory_result()` clears the loading cell
and renders either `new_mcp_tools_output_from_statuses(...)` or an error
message.
This keeps the main app event loop responsive, so the TUI can repaint
before the remote RPC finishes.
## Notes
- No `app-server` changes were required.
- The rendered inventory includes auth, tools, resources, and resource
templates, plus transport details when they are available from local
config for display enrichment.
- The app-server RPC does not expose authoritative `enabled` or
`disabled_reason` state for MCP servers, so the remote `/mcp` view no
longer renders a `Status:` row rather than guessing from local config.
- RPC failures surface in history as `Failed to load MCP inventory:
...`.
## Tests
- `slash_mcp_requests_inventory_via_app_server`
- `mcp_inventory_maps_prefix_tool_names_by_server`
- `handle_mcp_inventory_result_clears_committed_loading_cell`
- `mcp_tools_output_from_statuses_renders_status_only_servers`
- `mcp_inventory_loading_snapshot`
It now supports:
- Connectors that are from installed and enabled plugins that are not
installed yet
- Plugins that are on the allowlist that are not installed yet.
## Summary
- add device-code ChatGPT sign-in to `tui_app_server` onboarding and
reuse the existing `chatgptAuthTokens` login path
- fall back to browser login when device-code auth is unavailable on the
server
- treat `ChatgptAuthTokens` as an existing signed-in ChatGPT state
during onboarding
- add a local ChatGPT auth loader for handing local tokens to the app
server and serving refresh requests
- handle `account/chatgptAuthTokens/refresh` instead of marking it
unsupported, including workspace/account mismatch checks
- add focused coverage for onboarding success, existing auth handling,
local auth loading, and refresh request behavior
## Testing
- `cargo test -p codex-tui-app-server`
- `just fix -p codex-tui-app-server`
## Problem
When the TUI connects to a **remote** app-server (via WebSocket), resume
and fork operations lost all conversation history.
`AppServerStartedThread` carried only the `SessionConfigured` event, not
the full `Thread` snapshot. After resume or fork, the chat transcript
was empty — prior turns were silently discarded.
A secondary issue: `primary_session_configured` was not cleared on
reset, causing stale session state after reconnection.
## Approach: TUI-side only, zero app-server changes
The app-server **already returns** the full `Thread` object (with
populated `turns: Vec<Turn>`) in its `ThreadStartResponse`,
`ThreadResumeResponse`, and `ThreadForkResponse`. The data was always
there — the TUI was simply throwing it away. The old
`AppServerStartedThread` struct only kept the `SessionConfiguredEvent`,
discarding the rich turn history that the server had already provided.
This PR fixes the problem entirely within `tui_app_server` (3 files
changed, 0 changes to `app-server`, `app-server-protocol`, or any other
crate). Rather than modifying the server to send history in a different
format or adding a new endpoint, the fix preserves the existing `Thread`
snapshot and replays it through the TUI's standard event pipeline —
making restored sessions indistinguishable from live ones.
## Solution
Add a **thread snapshot replay** path. When the server hands back a
`Thread` object (on start, resume, or fork),
`restore_started_app_server_thread` converts its historical turns into
the same core `Event` sequence the TUI already processes for live
interactions, then replays them into the event store so the chat widget
renders them.
Key changes:
- **`AppServerStartedThread` now carries the full `Thread`** —
`started_thread_from_{start,resume,fork}_response` clone the thread into
the struct alongside the existing `SessionConfiguredEvent`.
- **`thread_snapshot_events()`** walks the thread's turns and items,
producing `TurnStarted` → `ItemCompleted`* →
`TurnComplete`/`TurnAborted` event sequences that the TUI already knows
how to render.
- **`restore_started_app_server_thread()`** pushes the session event +
history events into the thread channel's store, activates the channel,
and replays the snapshot — used for initial startup, resume, and fork.
- **`primary_session_configured` cleared on reset** to prevent stale
session state after reconnection.
## Tradeoffs
- **`Thread` is cloned into `AppServerStartedThread`**: The full thread
snapshot (including all historical turns) is cloned at startup. For
long-lived threads this could be large, but it's a one-time cost and
avoids lifetime gymnastics with the response.
## Tests
- `restore_started_app_server_thread_replays_remote_history` —
end-to-end: constructs a `Thread` with one completed turn, restores it,
and asserts user/agent messages appear in the transcript.
- `bridges_thread_snapshot_turns_for_resume_restore` — unit: verifies
`thread_snapshot_events` produces the correct event sequence for
completed and interrupted turns.
## Test plan
- [ ] Verify `cargo check -p codex-tui-app-server` passes
- [ ] Verify `cargo test -p codex-tui-app-server` passes
- [ ] Manual: connect to a remote app-server, resume an existing thread,
confirm history renders in the chat widget
- [ ] Manual: fork a thread via remote, confirm prior turns appear
The in-process app-server currently emits both typed
`ServerNotification`s and legacy `codex/event/*` notifications for the
same live turn updates. `tui_app_server` was consuming both paths, so
message deltas and completed items could be enqueued twice and rendered
as duplicated output in the transcript.
Ignore legacy notifications for event types that already have typed (app
server) notification handling, while keeping legacy fallback behavior
for events that still only arrive on the old path. This preserves
compatibility without duplicating streamed commentary or final agent
output.
We will remove all of the legacy event handlers over time; they're here
only during the short window where we're moving the tui to use the app
server.
## Stack Position
2/4. Built on top of #14828.
## Base
- #14828
## Unblocks
- #14829
- #14827
## Scope
- Port the realtime v2 wire parsing, session, app-server, and
conversation runtime behavior onto the split websocket-method base.
- Branch runtime behavior directly on the current realtime session kind
instead of parser-derived flow flags.
- Keep regression coverage in the existing e2e suites.
---------
Co-authored-by: Codex <noreply@openai.com>
## Why
Once the repo-local lint exists, `codex-rs` needs to follow the
checked-in convention and CI needs to keep it from drifting. This commit
applies the fallback `/*param*/` style consistently across existing
positional literal call sites without changing those APIs.
The longer-term preference is still to avoid APIs that require comments
by choosing clearer parameter types and call shapes. This PR is
intentionally the mechanical follow-through for the places where the
existing signatures stay in place.
After rebasing onto newer `main`, the rollout also had to cover newly
introduced `tui_app_server` call sites. That made it clear the first cut
of the CI job was too expensive for the common path: it was spending
almost as much time installing `cargo-dylint` and re-testing the lint
crate as a representative test job spends running product tests. The CI
update keeps the full workspace enforcement but trims that extra
overhead from ordinary `codex-rs` PRs.
## What changed
- keep a dedicated `argument_comment_lint` job in `rust-ci`
- mechanically annotate remaining opaque positional literals across
`codex-rs` with exact `/*param*/` comments, including the rebased
`tui_app_server` call sites that now fall under the lint
- keep the checked-in style aligned with the lint policy by using
`/*param*/` and leaving string and char literals uncommented
- cache `cargo-dylint`, `dylint-link`, and the relevant Cargo
registry/git metadata in the lint job
- split changed-path detection so the lint crate's own `cargo test` step
runs only when `tools/argument-comment-lint/*` or `rust-ci.yml` changes
- continue to run the repo wrapper over the `codex-rs` workspace, so
product-code enforcement is unchanged
Most of the code changes in this commit are intentionally mechanical
comment rewrites or insertions driven by the lint itself.
## Verification
- `./tools/argument-comment-lint/run.sh --workspace`
- `cargo test -p codex-tui-app-server -p codex-tui`
- parsed `.github/workflows/rust-ci.yml` locally with PyYAML
---
* -> #14652
* #14651
This PR replicates the `tui` code directory and creates a temporary
parallel `tui_app_server` directory. It also implements a new feature
flag `tui_app_server` to select between the two tui implementations.
Once the new app-server-based TUI is stabilized, we'll delete the old
`tui` directory and feature flag.
