codex

Improve handling of config and rules errors for app server clients (#9182 )

When an invalid config.toml key or value is detected, the CLI currently
just quits. This leaves the VSCE in a dead state.

This PR changes the behavior to not quit and bubble up the config error
to users to make it actionable. It also surfaces errors related to
"rules" parsing.

This allows us to surface these errors to users in the VSCE, like this:

<img width="342" height="129" alt="Screenshot 2026-01-13 at 4 29 22 PM"
src="https://github.com/user-attachments/assets/a79ffbe7-7604-400c-a304-c5165b6eebc4"
/>

<img width="346" height="244" alt="Screenshot 2026-01-13 at 4 45 06 PM"
src="https://github.com/user-attachments/assets/de874f7c-16a2-4a95-8c6d-15f10482e67b"
/>

Eric Traut · 2026-01-13 17:57:09 -08:00

31d9b6f4d2

Use offline cache for tui migrations (#9186 )

Ahmed Ibrahim · 2026-01-13 17:44:12 -08:00

5a82a72d93

fix(tui): harden paste-burst state transitions (#9124 )

User-facing symptom: On terminals that deliver pastes as rapid
KeyCode::Char/Enter streams (notably Windows), paste-burst transient
state
can leak into the next input. Users can see Enter insert a newline when
they meant to submit, or see characters appear late / handled through
the
wrong path.

System problem: PasteBurst is time-based. Clearing only the
classification window (e.g. via clear_window_after_non_char()) can erase
last_plain_char_time without emitting buffered text. If a buffer is
still
non-empty after that, flush_if_due() no longer has a timeout clock to
flush against, so the buffer can get "stuck" until another plain char
arrives.

This was surfaced while adding deterministic regression tests for
paste-burst behavior.

Fix: when disabling burst detection, defuse any in-flight burst state:
flush held/buffered text through handle_paste() (so it follows normal
paste integration), then clear timing and Enter suppression.

Document the rationale inline and update docs/tui-chat-composer.md so
"disable_paste_burst" matches the actual behavior.

Josh McKinney · 2026-01-14 01:42:21 +00:00

ce49e92848

Renew cache ttl on etag match (#9174 )

so we don't do unnecessary fetches

Ahmed Ibrahim · 2026-01-14 01:21:41 +00:00

4d787a2cc2

[CODEX-4427] improve parsed commands (#8933 )

**make command summaries more accurate by distinguishing
list/search/read operations across common CLI tools.**
- Added parsing helpers to centralize operand/flag handling (cd_target,
sed_read_path, first_non_flag_operand, single_non_flag_operand,
parse_grep_like, awk_data_file_operand, python_walks_files,
is_python_command) and reused them in summarize_main_tokens/shell
parsing.
- Newly parsed list-files commands: git ls-files, rg --files (incl.
rga/ripgrep-all), eza/exa, tree, du, python -c file-walks, plus fd/find
map to ListFiles when no query.
- Newly parsed search commands: git grep, grep/egrep/fgrep, ag/ack/pt,
rg/rga files-with-matches flags (-l/-L, --files-with-matches,
--files-without-match), with improved flag skipping to avoid
misclassifying args as paths.
- Newly parsed read commands: bat/batcat, less, more, awk <file>, and
more flexible sed -n range + file detection.
- refine “small formatting command” detection for awk/sed, handle cd
with -- or multiple operands, keep pipeline summaries focused on primary
command.

Ahmed Ibrahim · 2026-01-13 16:59:33 -08:00

c96c26cf5b

clean models manager (#9168 )

Have only the following Methods:
- `list_models`: getting current available models
- `try_list_models`: sync version no refresh for tui use
- `get_default_model`: get the default model (should be tightened to
core and received on session configuration)
- `get_model_info`: get `ModelInfo` for a specific model (should be
tightened to core but used in tests)
- `refresh_if_new_etag`: trigger refresh on different etags

Also move the cache to its own struct

Ahmed Ibrahim · 2026-01-13 16:55:33 -08:00

7e33ac7eb6

Update models.json (#9136 )

Automated update of models.json.

Co-authored-by: aibrahim-oai <219906144+aibrahim-oai@users.noreply.github.com>

github-actions[bot] · 2026-01-13 16:46:24 -08:00

ebbbee70c6

WebSocket test server script (#9175 )

Very simple test server to test Responses API WebSocket transport
integration.

pakrym-oai · 2026-01-13 16:21:14 -08:00

5a70b1568f

feat: add bazel-codex entry to justfile (#9177 )

This is less straightforward than I realized, so created an entry for
this in our `justfile`.

Verified that running `just bazel-codex` from anywhere in the repo uses
the user's `$PWD` as the one to run Codex.

While here, updated the `MODULE.bazel.lock`, though it looks like I need
to add a CI job that runs `bazel mod deps --lockfile_mode=error` or
something.

Michael Bolin · 2026-01-13 16:16:22 -08:00

903a0c0933

fix: integration test for #9011 (#9166 )

Adds an integration test for the new behavior introduced in
https://github.com/openai/codex/pull/9011. The work to create the test
setup was substantial enough that I thought it merited a separate PR.

This integration test spawns `codex` in TUI mode, which requires
spawning a PTY to run successfully, so I had to introduce quite a bit of
scaffolding in `run_codex_cli()`. I was surprised to discover that we
have not done this in our codebase before, so perhaps this should get
moved to a common location so it can be reused.

The test itself verifies that a malformed `rules` in `$CODEX_HOME`
prints a human-readable error message and exits nonzero.

Michael Bolin · 2026-01-13 23:39:34 +00:00

4c673086bc

fix: report an appropriate error in the TUI for malformed rules (#9011 )

The underlying issue is that when we encountered an error starting a
conversation (any sort of error, though making `$CODEX_HOME/rules` a
file rather than folder was the example in #8803), then we were writing
the message to stderr, but this could be printed over by our UI
framework so the user would not see it. In general, we disallow the use
of `eprintln!()` in this part of the code for exactly this reason,
though this was suppressed by an `#[allow(clippy::print_stderr)]`.

This attempts to clean things up by changing `handle_event()` and
`handle_tui_event()` to return a `Result<AppRunControl>` instead of a
`Result<bool>`, which is a new type introduced in this PR (and depends
on `ExitReason`, also a new type):

```rust
#[derive(Debug)]
pub(crate) enum AppRunControl {
    Continue,
    Exit(ExitReason),
}

#[derive(Debug, Clone)]
pub enum ExitReason {
    UserRequested,
    Fatal(String),
}
```

This makes it possible to exit the primary control flow of the TUI with
richer information. This PR adds `ExitReason` to the existing
`AppExitInfo` struct and updates `handle_app_exit()` to print the error
and exit code `1` in the event of `ExitReason::Fatal`.

I tried to create an integration test for this, but it was a bit
involved, so I published it as a separate PR:
https://github.com/openai/codex/pull/9166. For this PR, please have
faith in my manual testing!

Fixes https://github.com/openai/codex/issues/8803.




---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/9011).
* #9166
* __->__ #9011

Michael Bolin · 2026-01-13 23:21:32 +00:00

2cd1a0a45e

Fix flakiness in WebSocket tests (#9169 )

The connection was being added to the list after the WebSocket response
was sent.

So the test can sometimes race and observe connections before the list
was updated.

After this change, connection and request is added to the list before
the response is sent.

pakrym-oai · 2026-01-13 15:09:59 -08:00

9f8d3c14ce

Allow close skill popup with esc. (#9165 )

<img width="398" height="133" alt="image"
src="https://github.com/user-attachments/assets/3084e793-ce5b-4f92-ad60-4c73e65c21c5"
/>
<img width="242" height="86" alt="image"
src="https://github.com/user-attachments/assets/57dd5587-0aea-4a55-91b8-273702939cb2"
/>

You can now esc to quit the skill popup and submit the input as it is.

xl-openai · 2026-01-13 15:02:44 -08:00

89403c5e11

Fix spinner/Esc interrupt when MCP startup completes mid-turn (#8661 )

## **Problem**

Codex’s TUI uses a single “task running” indicator (spinner + Esc interrupt hint)
to communicate “the UI is busy”. In practice, “busy” can mean two different
things: an agent turn is running, or MCP servers are still starting up. Without a
clear contract, those lifecycles can interfere: startup completion can clear the
spinner while a turn is still in progress, or the UI can appear idle while MCP is
still booting. This is user-visible confusion during the most important moments
(startup and the first turn), so it was worth making the contract explicit and
guarding it.

## **Mental model**

`ChatWidget` is the UI-side adapter for the `codex_core::protocol` event stream.
It receives `EventMsg` events and updates two major UI surfaces: the transcript
(history/streaming cells) and the bottom pane (composer + status indicator).

The key concept after this change is that the bottom pane’s “task running”
indicator is treated as **derived UI-busy state**, not “agent is running”. It is
considered active while either:
- an agent turn is in progress (`TurnStarted` → completion/abort), or
- MCP startup is in progress (`McpStartupUpdate` → `McpStartupComplete`).

Those lifecycles are tracked independently, and the bottom-pane indicator is
defined as their union.

## **Non-goals**

- This does not introduce separate UI indicators for “turn busy” vs “MCP busy”.
- This does not change MCP startup behavior, ordering guarantees, or core
  protocol semantics.
- This does not rework unrelated status/header rendering or transcript layout.

## **Tradeoffs**

- The “one flag represents multiple lifecycles” approach remains lossy: it
  preserves correct “busy vs idle” semantics but cannot express *which* kind of
  busy is happening without further UI changes.
- The design keeps complexity low by keeping a single derived boolean, rather
  than adding a more expressive bottom-pane state machine. That’s chosen because
  it matches existing UX and minimizes churn while fixing the confusion.

## **Architecture**

- `codex-core` owns the actual lifecycles and emits `codex_core::protocol`
  events.
- `ChatWidget` owns the UI interpretation of those lifecycles. It is responsible
  for keeping the bottom pane’s derived “busy” state consistent with the event
  stream, and for updating the status header when MCP progress updates arrive.
- The bottom pane remains a dumb renderer of the single “task running” flag; it
  does not learn about MCP or agent turns directly.

## **Observability**

- When working: the spinner/Esc hint stays visible during MCP startup and does
  not disappear mid-turn when `McpStartupComplete` arrives; startup status
  headers can update without clearing “busy” for an active turn.
- When broken: you’ll see the spinner/hint flicker off while output is still
  streaming, or the UI appears idle while MCP startup status is still changing.

## **Tests**

- Adds/strengthens a regression test that asserts MCP startup completion does
  not clear the “task running” indicator for an active turn (in both `tui` and
  `tui2` variants).
- These tests prove the **contract** (“busy is the union of turn + startup”) at
  the UI boundary; they do not attempt to validate MCP startup ordering,
  real-world startup timing, or backend integration behavior.

Fixes #7017

Signed-off-by: 2mawi2 <2mawi2@users.noreply.github.com>
Co-authored-by: 2mawi2 <2mawi2@users.noreply.github.com>
Co-authored-by: Josh McKinney <joshka@openai.com>

Marius Wichtner · 2026-01-13 13:56:09 -08:00

3c711f3d16

test(tui): add deterministic paste-burst tests (#9121 )

Replace the old timing-dependent non-ASCII paste test with deterministic
coverage by forcing an active `PasteBurst` and asserting the exact flush
payload.

Add focused unit tests for `PasteBurst` transitions, and add short
"Behavior:" rustdoc notes on chat composer tests to make the state
machine contracts explicit.

Josh McKinney · 2026-01-13 21:55:44 +00:00

141d2b5022

fix(windows-sandbox-rs) bump SETUP_VERSION (#9134 )

## Summary
Bumps the windows setup version, to re-trigger windows sandbox setup for
users in the experimental sandbox. We've seen some drift in the ACL
controls, amongst a few other changes. Hopefully this should fix #9062.

## Testing
- [x] Tested locally

Dylan Hurd · 2026-01-13 13:47:29 -08:00

ebacd28817

Fresh tooltips (#9130 )

Fresh tooltips

Matthew Zeng · 2026-01-13 13:06:35 -08:00

e25d2ab3bf

feat(app-server): add an --analytics-default-enabled flag (#9118 )

Add a new `codex app-server --analytics-default-enabled` CLI flag that
controls whether analytics are enabled by default.

Analytics are disabled by default for app-server. Users have to
explicitly opt in
via the `analytics` section in the config.toml file.

However, for first-party use cases like the VSCode IDE extension, we
default analytics
to be enabled by default by setting this flag. Users can still opt out
by setting this
in their config.toml:

```toml
[analytics]
enabled = false
```

See https://developers.openai.com/codex/config-advanced/#metrics for
more details.

Owen Lin · 2026-01-13 11:59:39 -08:00

bde734fd1e

fix(tui): document paste-burst state machine (#9020 )

Add a narrative doc and inline rustdoc explaining how `ChatComposer`
and `PasteBurst` compose into a single state machine on terminals that
lack reliable bracketed paste (notably Windows).

This documents the key states, invariants, and integration points
(`handle_input_basic`, `handle_non_ascii_char`, tick-driven flush) so
future changes are easier to reason about.

Josh McKinney · 2026-01-13 11:48:31 -08:00

58e8f75b27

Restrict MCP servers from requirements.toml (#9101 )

Enterprises want to restrict the MCP servers their users can use.

Admins can now specify an allowlist of MCPs in `requirements.toml`. The
MCP servers are matched on both Name and Transport (local path or HTTP
URL) -- both must match to allow the MCP server. This prevents
circumventing the allowlist by renaming MCP servers in user config. (It
is still possible to replace the local path e.g. rewrite say
`/usr/local/github-mcp` with a nefarious MCP. We could allow hash
pinning in the future, but that would break updates. I also think this
represents a broader, out-of-scope problem.)

We introduce a new field to Constrained: "normalizer". In general, it is
a fn(T) -> T and applies when `Constrained<T>.set()` is called. In this
particular case, it disables MCP servers which do not match the
allowlist. An alternative solution would remove this and instead throw a
ConstraintError. That would stop Codex launching if any MCP server was
configured which didn't match. I think this is bad.

We currently reuse the enabled flag on MCP servers to disable them, but
don't propagate any information about why they are disabled. I'd like to
add that in a follow up PR, possibly by switching out enabled with an
enum.

In action:

```
# MCP server config has two MCPs. We are going to allowlist one of them.
➜  codex git:(gt/restrict-mcps) ✗ cat ~/.codex/config.toml | grep mcp_servers -A1
[mcp_servers.hello_world]
command = "hello-world-mcp"
--
[mcp_servers.docs]
command = "docs-mcp"

# Restrict the MCPs to the hello_world MCP.
➜  codex git:(gt/restrict-mcps) ✗ defaults read com.openai.codex requirements_toml_base64 | base64 -d
[mcp_server_allowlist.hello_world]
command = "hello-world-mcp"

# List the MCPs, observe hello_world is enabled and docs is disabled.
➜  codex git:(gt/restrict-mcps) ✗ just codex mcp list
cargo run --bin codex -- "$@"
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
     Running `target/debug/codex mcp list`
Name         Command          Args  Env  Cwd  Status    Auth
docs         docs-mcp         -     -    -    disabled  Unsupported
hello_world  hello-world-mcp  -     -    -    enabled   Unsupported

# Remove the restrictions.
➜  codex git:(gt/restrict-mcps) ✗ defaults delete com.openai.codex requirements_toml_base64

# Observe both MCPs are enabled.
➜  codex git:(gt/restrict-mcps) ✗ just codex mcp list
cargo run --bin codex -- "$@"
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
     Running `target/debug/codex mcp list`
Name         Command          Args  Env  Cwd  Status   Auth
docs         docs-mcp         -     -    -    enabled  Unsupported
hello_world  hello-world-mcp  -     -    -    enabled  Unsupported

# A new requirements that updates the command to one that does not match.
➜  codex git:(gt/restrict-mcps) ✗ cat ~/requirements.toml
[mcp_server_allowlist.hello_world]
command = "hello-world-mcp-v2"

# Use those requirements.
➜  codex git:(gt/restrict-mcps) ✗ defaults write com.openai.codex requirements_toml_base64 "$(base64 -i /Users/gt/requirements.toml)"

# Observe both MCPs are disabled.
➜  codex git:(gt/restrict-mcps) ✗ just codex mcp list
cargo run --bin codex -- "$@"
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s
     Running `target/debug/codex mcp list`
Name         Command          Args  Env  Cwd  Status    Auth
docs         docs-mcp         -     -    -    disabled  Unsupported
hello_world  hello-world-mcp  -     -    -    disabled  Unsupported
```

gt-oai · 2026-01-13 19:45:00 +00:00

2651980bdf

fix: drop session span at end of the session (#9126 )

Anton Panasenko · 2026-01-13 11:36:00 -08:00

51d75bb80a

Fix queued messages during /review (#9122 )

Sending a message during /review interrupts the review, whereas during
normal operation, sending a message while the agent is running will
queue the message. This is unexpected behavior, and since /review
usually takes a while, it takes away a potentially useful operation.

Summary
- Treat review mode as an active task for message queuing so inputs
don’t inject into the running review turn.
- Prevents user submissions from rendering immediately in the transcript
while the review continues streaming.
- Keeps review UX consistent with normal “task running” behavior and
avoids accidental interrupt/replacement.

Notes
- This change only affects UI queuing logic; core review flow and task
lifecycle remain unchanged.

charley-oai · 2026-01-13 11:23:22 -08:00

57ba758df5

add generated jsonschema for config.toml (#8956 )

### What
Add JSON Schema generation for `config.toml`, with checked‑in
`docs/config.schema.json`. We can move the schema elsewhere if preferred
(and host it if there's demand).

Add fixture test to prevent drift and `just write-config-schema` to
regenerate on schema changes.

Generate MCP config schema from `RawMcpServerConfig` instead of
`McpServerConfig` because that is the runtime type used for
deserialization.

Populate feature flag values into generated schema so they can be
autocompleted.

### Tests
Added tests + regenerate script to prevent drift. Tested autocompletions
using generated jsonschema locally with Even Better TOML.



https://github.com/user-attachments/assets/5aa7cd39-520c-4a63-96fb-63798183d0bc

sayan-oai · 2026-01-13 10:22:51 -08:00

40e2405998

ollama: default to Responses API for built-ins (#8798 )

This is an alternate PR to solving the same problem as
<https://github.com/openai/codex/pull/8227>.

In this PR, when Ollama is used via `--oss` (or via `model_provider =
"ollama"`), we default it to use the Responses format. At runtime, we do
an Ollama version check, and if the version is older than when Responses
support was added to Ollama, we print out a warning.

Because there's no way of configuring the wire api for a built-in
provider, we temporarily add a new `oss_provider`/`model_provider`
called `"ollama-chat"` that will force the chat format.

Once the `"chat"` format is fully removed (see
<https://github.com/openai/codex/discussions/7782>), `ollama-chat` can
be removed as well

---------

Co-authored-by: Eric Traut <etraut@openai.com>
Co-authored-by: Michael Bolin <mbolin@openai.com>

Devon Rifkin · 2026-01-13 09:51:41 -08:00

fe03320791

Support response.done and add integration tests (#9129 )

The agent loop using a persistent incremental web socket connection.

pakrym-oai · 2026-01-13 16:12:30 +00:00

2d56519ecd

nit: collab send input cleaning (#9147 )

jif-oai · 2026-01-13 15:15:41 +00:00

97f1f20edb

chore: better error handling on collab tools (#9143 )

jif-oai · 2026-01-13 13:56:11 +00:00

3b8d79ee11

Use thread rollback for Esc backtrack (#9140 )

- Swap Esc backtrack to roll back the current thread instead of forking

Ahmed Ibrahim · 2026-01-13 09:17:39 +00:00

3a300d1117

Show tab queue hint in footer (#9138 )

- show the Tab queue hint in the footer when a task is running with
Steer enabled
- drop the history queue hint and add footer snapshots

Ahmed Ibrahim · 2026-01-13 00:32:53 -08:00

17ab5f6a52

Updated heuristic for tool call summary to detect file modifications (#9109 )

This PR attempts to address #9079

Eric Traut · 2026-01-13 08:00:13 +00:00

3c8fb90bf0

Use markdown for migration screen (#8952 )

Next steps will be routing this to model info

Ahmed Ibrahim · 2026-01-13 07:41:42 +00:00

325ce985f1

Handle image paste from empty paste events (#9049 )

Handle image paste on empty paste events.

- Intent: make image paste work in terminals that emit empty paste
events.
- Approach: route paste events through an image-aware handler and read
the clipboard when text is empty.
- That's best effort to detect it. Some terminals don't send the empty
signal.

Ahmed Ibrahim · 2026-01-12 23:39:59 -08:00

18b737910c

Send message by default mid turn. queue messages by tab (#9077 )

https://github.com/user-attachments/assets/03838730-4ddc-44df-a2c7-cb8ecda78660

Ahmed Ibrahim · 2026-01-12 23:06:35 -08:00

cbca43d57a

Websocket append support (#9128 )

Support an incremental append request in websocket transport.

pakrym-oai · 2026-01-13 06:07:13 +00:00

e726a82c8a

fix: prompt for unsafe commands on Windows (#9117 )

Michael Bolin · 2026-01-12 21:30:09 -08:00

ddae70bd62

Reuse websocket connection (#9127 )

Reuses the connection but still sends full requests.

pakrym-oai · 2026-01-13 03:30:09 +00:00

d75626ad99

fix(tui): show in-flight coalesced tool calls in transcript overlay (#8246 )

### Problem
Ctrl+T transcript overlay can omit in-flight coalesced tool calls because it
renders only committed transcript cells while the main viewport can render the
current in-flight ChatWidget.active_cell immediately.

### Mental model
The UI has both committed transcript cells (finalized HistoryCell entries) and
an in-flight active cell that can mutate in place while streaming, often
representing a coalesced exec/tool group. The transcript overlay renders
committed cells plus a render-only live tail derived from the current active
cell. The live tail is cached and only recomputed when its cache key changes,
which is derived from terminal width (wrapping), active-cell revision
(in-place mutations), stream continuation (spacing), and animation tick
(time-based visuals).

### Non-goals
This does not change coalescing rules, flush boundaries, or when active cells
become committed. It does not change tool-call semantics or transcript
persistence; it is a rendering-only improvement for the overlay.

### Tradeoffs
This adds cache invalidation complexity: correctness depends on bumping an
active-cell revision (and/or providing an animation tick) when the active cell
mutates in place. The mechanism is implemented in both codex-tui and codex-tui2,
which keeps behavior consistent but risks drift if future changes are not
applied in lockstep.

### Architecture
App special-cases transcript overlay draws to sync a live tail from ChatWidget
into TranscriptOverlay. TranscriptOverlay remains the owner of committed
transcript cells; the live tail is an optional appended renderable.
HistoryCell::transcript_animation_tick() allows time-dependent transcript output
(spinner/shimmer) to invalidate the cached tail without requiring data mutation.

### Observability
Manual verification is to open Ctrl+T while an exploring/coalesced active cell
is still in-flight and confirm the overlay includes the same in-flight tool-call
group the main viewport shows. The overlay is kept in sync by App passing an
active-cell key and transcript lines into TranscriptOverlay::sync_live_tail; the
key must change when the active cell mutates or animates.

### Tests
Snapshot tests validate that the transcript overlay renders a live tail appended
after committed cells and that identical keys short-circuit recomputation. Unit
tests validate that active-cell revision bumps occur on specific in-place
mutations (e.g. unified exec wait cell command display becoming known late) so
cached tails are invalidated.

## Documentation patches (module, type, function)

### Module-level docs (invariants + mechanisms)
- codex-rs/tui/src/app_backtrack.rs:1
- codex-rs/tui/src/chatwidget.rs:1
- codex-rs/tui/src/pager_overlay.rs:1
- codex-rs/tui/src/history_cell.rs:1
- codex-rs/tui2/src/app_backtrack.rs:1
- codex-rs/tui2/src/chatwidget.rs:1
- codex-rs/tui2/src/pager_overlay.rs:1
- codex-rs/tui2/src/history_cell.rs:1

### Type-level docs (cache key + invariants)
- codex-rs/tui/src/chatwidget.rs (ChatWidget.active_cell_revision, ActiveCellTranscriptKey)
- codex-rs/tui/src/pager_overlay.rs (TranscriptOverlay live tail storage model)
- codex-rs/tui/src/history_cell.rs (HistoryCell::transcript_animation_tick, UnifiedExecWaitCell::update_command_display)
- Mirrored in codex-rs/tui2/src/chatwidget.rs, codex-rs/tui2/src/pager_overlay.rs, codex-rs/tui2/src/history_cell.rs

### Function-level docs (why/when/guarantees/pitfalls)
- codex-rs/tui/src/app_backtrack.rs (overlay_forward_event)
- codex-rs/tui/src/chatwidget.rs (active_cell_transcript_key, active_cell_transcript_lines)
- codex-rs/tui/src/pager_overlay.rs (sync_live_tail, take_live_tail_renderable)
- codex-rs/tui/src/history_cell.rs (transcript_animation_tick, UnifiedExecWaitCell::update_command_display)
- Mirrored in codex-rs/tui2 equivalents where present

### Validation performed
- cd codex-rs && just fmt
- cd codex-rs && cargo test -p codex-tui
- cd codex-rs && cargo test -p codex-tui2

## Design inconsistencies / risks

- Cache invalidation is a distributed responsibility: any future in-place active
  cell transcript mutation that forgets to bump active_cell_revision (or expose
  an animation tick) can leave the transcript overlay live tail out of sync with
  the main viewport.
- TranscriptOverlay tail handling assumes a structural invariant that the live
  tail, when present, is exactly one trailing renderable after the committed cell
  renderables; if renderable construction changes in a way that violates that
  assumption, tail insertion/removal logic becomes incorrect.
- codex-tui and codex-tui2 duplicate the live-tail mechanism; the documentation
  is aligned, but the implementation can still drift unless changes continue to
  be applied in lockstep.

Chriss4123 · 2026-01-13 03:06:11 +00:00

12779c7c07

Add model client sessions (#9102 )

Maintain a long-running session.

pakrym-oai · 2026-01-13 01:15:56 +00:00

490c1c1fdd

Assemble sandbox/approval/network prompts dynamically (#8961 )

- Add a single builder for developer permissions messaging that accepts
SandboxPolicy and approval policy. This builder now drives the developer
“permissions” message that’s injected at session start and any time
sandbox/approval settings change.
- Trim EnvironmentContext to only include cwd, writable roots, and
shell; removed sandbox/approval/network duplication and adjusted XML
serialization and tests accordingly.

Follow-up: adding a config value to replace the developer permissions
message for custom sandboxes.

Ahmed Ibrahim · 2026-01-12 23:12:59 +00:00

87f7226cca

Extract single responses SSE event parsing (#9114 )

To be reused in WebSockets parsing.

pakrym-oai · 2026-01-12 13:59:51 -08:00

3a6a43ff5c

Add some tests for image attachments (#9080 )

Some extra tests for https://github.com/openai/codex/pull/8950

charley-oai · 2026-01-12 13:41:50 -08:00

d7cdcfc302

Remove unused conversation_id header (#9107 )

It's an exact copy of session_id

pakrym-oai · 2026-01-12 21:01:07 +00:00

5dfa780f3d

feat: hot reload mcp servers (#8957 )

### Summary
* Added `mcpServer/refresh` command to inform app servers and active
threads to refresh mcpServer on next turn event.
* Added `pending_mcp_server_refresh_config` to codex core so that if the
value is populated, we reinitialize the mcp server manager on the thread
level.
* The config is updated on `mcpServer/refresh` command which we iterate
through threads and provide with the latest config value after last
write.

Shijie Rao · 2026-01-12 11:17:50 -08:00

3e91a95ce1

chore(deps): bump tokio-util from 0.7.16 to 0.7.18 in /codex-rs (#9076 )

Bumps [tokio-util](https://github.com/tokio-rs/tokio) from 0.7.16 to
0.7.18.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/tokio-rs/tokio/commit/9cc02cc88d083113cd9889a74b382e39e430e180"><code>9cc02cc</code></a>
chore: prepare tokio-util 0.7.18 (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7829">#7829</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/d2799d791b10388e60a2a5fe5e4a33b3336e1465"><code>d2799d7</code></a>
task: improve the docs of <code>Builder::spawn_local</code> (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7828">#7828</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/4d4870f291b69e2426232440e03c9e66fe77b525"><code>4d4870f</code></a>
task: doc that task drops before JoinHandle completion (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7825">#7825</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/fdb150901afb0456037c6232eab8ce80116ccd02"><code>fdb1509</code></a>
fs: check for io-uring opcode support (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7815">#7815</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/426a56278017c30e7da7b4c9365a2610f4695f76"><code>426a562</code></a>
rt: remove <code>allow(dead_code)</code> after <code>JoinSet</code>
stabilization (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7826">#7826</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/e3b89bbefa7564e2eba2fb9f849ef7bf87d60fad"><code>e3b89bb</code></a>
chore: prepare Tokio v1.49.0 (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7824">#7824</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/4f577b84e939c8d427d79fdc73919842d8735de2"><code>4f577b8</code></a>
Merge 'tokio-1.47.3' into 'master'</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/f320197693ee09e28f1fca0e55418081adcdfc25"><code>f320197</code></a>
chore: prepare Tokio v1.47.3 (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7823">#7823</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/ea6b144cd1042d6841a7830b18f2df77c3db904b"><code>ea6b144</code></a>
ci: freeze rustc on nightly-2025-01-25 in <code>netlify.toml</code> (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7652">#7652</a>)</li>
<li><a
href="https://github.com/tokio-rs/tokio/commit/264e703296bccd6783a438815d91055d4517099b"><code>264e703</code></a>
Merge <code>tokio-1.43.4</code> into <code>tokio-1.47.x</code> (<a
href="https://redirect.github.com/tokio-rs/tokio/issues/7822">#7822</a>)</li>
<li>Additional commits viewable in <a
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dependabot[bot] · 2026-01-12 10:14:42 -08:00

034d489c34

chore(deps): bump clap from 4.5.53 to 4.5.54 in /codex-rs (#9075 )

Bumps [clap](https://github.com/clap-rs/clap) from 4.5.53 to 4.5.54.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
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<blockquote>
<h2>v4.5.54</h2>
<h2>[4.5.54] - 2026-01-02</h2>
<h3>Fixes</h3>
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<li><em>(help)</em> Move <code>[default]</code> to its own paragraph
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<p><em>Sourced from <a
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<h2>[4.5.54] - 2026-01-02</h2>
<h3>Fixes</h3>
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<li><em>(help)</em> Move <code>[default]</code> to its own paragraph
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<li><a
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docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/0f59d55ff6b132cd59cd252442ce47078494be07"><code>0f59d55</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/6027">#6027</a>
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Feat: Add catch-all on external subcommands for zsh</li>
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Feat: Add external subcommands test to suite</li>
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dependabot[bot] · 2026-01-12 10:14:22 -08:00

729e097662

chore(deps): bump which from 6.0.3 to 8.0.0 in /codex-rs (#9074 )

Bumps [which](https://github.com/harryfei/which-rs) from 6.0.3 to 8.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/harryfei/which-rs/releases">which's
releases</a>.</em></p>
<blockquote>
<h2>8.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Add new <code>Sys</code> trait to allow abstracting over the
underlying filesystem. Particularly useful for
<code>wasm32-unknown-unknown</code> targets. Thanks <a
href="https://github.com/dsherret"><code>@dsherret</code></a> for this
contribution to which!</li>
<li>Add more debug level tracing for otherwise silent I/O errors.</li>
<li>Call the <code>NonFatalHandler</code> in more places to catch
previously ignored I/O errors.</li>
<li>Remove use of the <code>either</code> dependency.</li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/dsherret"><code>@dsherret</code></a>
made their first contribution in <a
href="https://redirect.github.com/harryfei/which-rs/pull/109">harryfei/which-rs#109</a></li>
</ul>
<h2>7.0.3</h2>
<ul>
<li>Update rustix to version 1.0. Congrats to rustix on this milestone,
and thanks <a href="https://github.com/mhils"><code>@mhils</code></a>
for this contribution to which!</li>
</ul>
<h2>7.0.2</h2>
<ul>
<li>Don't return paths containing the single dot <code>.</code>
reference to the current directory, even if the original request was
given in terms of the current directory. Thanks <a
href="https://github.com/jakobhellermann"><code>@jakobhellermann</code></a>
for this contribution!</li>
</ul>
<h2>7.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Switch to <code>env_home</code> crate by <a
href="https://github.com/micolous"><code>@micolous</code></a> in <a
href="https://redirect.github.com/harryfei/which-rs/pull/105">harryfei/which-rs#105</a></li>
<li>fixes <a
href="https://redirect.github.com/harryfei/which-rs/issues/106">#106</a>,
bump patch version by <a
href="https://github.com/Xaeroxe"><code>@Xaeroxe</code></a> in <a
href="https://redirect.github.com/harryfei/which-rs/pull/107">harryfei/which-rs#107</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/micolous"><code>@micolous</code></a>
made their first contribution in <a
href="https://redirect.github.com/harryfei/which-rs/pull/105">harryfei/which-rs#105</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/harryfei/which-rs/compare/7.0.0...7.0.1">https://github.com/harryfei/which-rs/compare/7.0.0...7.0.1</a></p>
<h2>7.0.0</h2>
<ul>
<li>Add support to <code>WhichConfig</code> for a user provided closure
that will be called whenever a nonfatal error occurs.
This technically breaks a few APIs due to the need to add more generics
and lifetimes. Most code will compile
without changes.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/harryfei/which-rs/blob/master/CHANGELOG.md">which's
changelog</a>.</em></p>
<blockquote>
<h2>8.0.0</h2>
<ul>
<li>Add new <code>Sys</code> trait to allow abstracting over the
underlying filesystem. Particularly useful for
<code>wasm32-unknown-unknown</code> targets. Thanks <a
href="https://github.com/dsherret"><code>@dsherret</code></a> for this
contribution to which!</li>
<li>Add more debug level tracing for otherwise silent I/O errors.</li>
<li>Call the <code>NonFatalHandler</code> in more places to catch
previously ignored I/O errors.</li>
<li>Remove use of the <code>either</code> dependency.</li>
</ul>
<h2>7.0.3</h2>
<ul>
<li>Update rustix to version 1.0. Congrats to rustix on this milestone,
and thanks <a href="https://github.com/mhils"><code>@mhils</code></a>
for this contribution to which!</li>
</ul>
<h2>7.0.2</h2>
<ul>
<li>Don't return paths containing the single dot <code>.</code>
reference to the current directory, even if the original request was
given in
terms of the current directory. Thanks <a
href="https://github.com/jakobhellermann"><code>@jakobhellermann</code></a>
for this contribution!</li>
</ul>
<h2>7.0.1</h2>
<ul>
<li>Get user home directory from <code>env_home</code> instead of
<code>home</code>. Thanks <a
href="https://github.com/micolous"><code>@micolous</code></a> for this
contribution!</li>
<li>If home directory is unavailable, do not expand the tilde to an
empty string. Leave it as is.</li>
</ul>
<h2>7.0.0</h2>
<ul>
<li>Add support to <code>WhichConfig</code> for a user provided closure
that will be called whenever a nonfatal error occurs.
This technically breaks a few APIs due to the need to add more generics
and lifetimes. Most code will compile
without changes.</li>
</ul>
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</details>
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<summary>Commits</summary>
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<li><a
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bump version, update changelog</li>
<li><a
href="https://github.com/harryfei/which-rs/commit/84e152ec23f3471eeefb278a55f8fdb818088866"><code>84e152e</code></a>
reduce sys::Sys requirements, add some tracing for otherwise silent
errors (#...</li>
<li><a
href="https://github.com/harryfei/which-rs/commit/a0a6daf199c15b0d2af07b91b0cb2f3054727311"><code>a0a6daf</code></a>
feat: add Sys trait for swapping out system (<a
href="https://redirect.github.com/harryfei/which-rs/issues/109">#109</a>)</li>
<li><a
href="https://github.com/harryfei/which-rs/commit/eef199824a0cf1596e8afbe9e7a5e6a793486cad"><code>eef1998</code></a>
Add actively maintained badge</li>
<li><a
href="https://github.com/harryfei/which-rs/commit/1d145deef8aaaa1a493a9f33fbb7b7031233284e"><code>1d145de</code></a>
release version 7.0.3</li>
<li><a
href="https://github.com/harryfei/which-rs/commit/f5e529223445cdd0fa9a9c190a92276d7de4eb32"><code>f5e5292</code></a>
fix unrelated lint error</li>
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bump rustix</li>
<li><a
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bump version, add to changelog</li>
<li><a
href="https://github.com/harryfei/which-rs/commit/cf37760ea1840a87d69d5eb18fc56a5b871e6d53"><code>cf37760</code></a>
don't run relative dot test on macos</li>
<li><a
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update target to new name for wasm32-wasip1</li>
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dependabot[bot] · 2026-01-12 10:14:00 -08:00

7ac498e0e0

chore(deps): bump ts-rs from 11.0.1 to 11.1.0 in /codex-rs (#9072 )

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Bumps [ts-rs](https://github.com/Aleph-Alpha/ts-rs) from 11.0.1 to
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<p><em>Sourced from <a
href="https://github.com/Aleph-Alpha/ts-rs/releases">ts-rs's
releases</a>.</em></p>
<blockquote>
<h2>v11.1.0</h2>
<p>Today, we're happy to publish a small follow-up to v11.0.1!</p>
<p>This release fixes a nasty build failure when using the
<code>format</code> feature.
<strong>Note:</strong> For those that use the <code>format</code>
feature, this release bumps the MSRV to 1.88. We'd have preferred to do
this in a major release, but felt this was acceptable since the build
was broken by one of the dependencies anyway.</p>
<h1>New features</h1>
<h2>TypeScript enums with <code>#[ts(repr(enum))</code></h2>
<p><code>#[ts(repr(enum))</code> instructs ts-rs to generate an
<code>enum</code>, instead of a <code>type</code> for your rust
enum.</p>
<pre lang="rust"><code>#[derive(TS)]
#[ts(repr(enum))]
enum Role {
    User,
    Admin,
}
// will generate `export enum Role { &quot;User&quot;, &quot;Admin&quot;
}`
</code></pre>
<p>Discriminants are preserved, and you can use the variant's name as
discriminant instead using <code>#[ts(repr(enum = name))]</code></p>
<h2><code>#[ts(optional_fields)]</code> in enums</h2>
<p>The <code>#[ts(optional_fields)]</code> attribute can now be applied
directly to enums, or even to individual enum variants.</p>
<h2>Control over file extensions in imports</h2>
<p>Normally, we generate <code>import { Type } from
&quot;file&quot;</code> statements. In some scenarios though, it might
be necessary to use a <code>.ts</code> or even <code>.js</code>
extension instead.<br />
This is now possible by setting the <code>TS_RS_IMPORT_EXTENSION</code>
environment variable.</p>
<blockquote>
<p>Note: With the introduction of this feature, we deprecate the
<code>import-esm</code> cargo feature. It will be removed in a future
major release.</p>
</blockquote>
<h2>Full changelog</h2>
<ul>
<li>Regression: <code>#[ts(optional)]</code> with
<code>#[ts(type)]</code> by <a
href="https://github.com/NyxCode"><code>@NyxCode</code></a> in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/416">Aleph-Alpha/ts-rs#416</a></li>
<li>release v11.0.1 by <a
href="https://github.com/NyxCode"><code>@NyxCode</code></a> in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/417">Aleph-Alpha/ts-rs#417</a></li>
<li>Make <code>rename_all</code> compatible with tuple and unit structs
as a no-op attribute by <a
href="https://github.com/gustavo-shigueo"><code>@gustavo-shigueo</code></a>
in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/422">Aleph-Alpha/ts-rs#422</a></li>
<li>Replace <code>import-esm</code> with
<code>TS_RS_IMPORT_EXTENSION</code> by <a
href="https://github.com/gustavo-shigueo"><code>@gustavo-shigueo</code></a>
in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/423">Aleph-Alpha/ts-rs#423</a></li>
<li>Updated chrono Duration emitted type by <a
href="https://github.com/fxf8"><code>@fxf8</code></a> in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/434">Aleph-Alpha/ts-rs#434</a></li>
<li>Add optional_fields to enum by <a
href="https://github.com/gustavo-shigueo"><code>@gustavo-shigueo</code></a>
in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/432">Aleph-Alpha/ts-rs#432</a></li>
<li>Add <code>#[ts(repr(enum)]</code> attribute by <a
href="https://github.com/gustavo-shigueo"><code>@gustavo-shigueo</code></a>
in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/425">Aleph-Alpha/ts-rs#425</a></li>
<li>Fix build with <code>format</code> feature by <a
href="https://github.com/gustavo-shigueo"><code>@gustavo-shigueo</code></a>
in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/438">Aleph-Alpha/ts-rs#438</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/fxf8"><code>@fxf8</code></a> made their
first contribution in <a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/434">Aleph-Alpha/ts-rs#434</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/Aleph-Alpha/ts-rs/blob/main/CHANGELOG.md">ts-rs's
changelog</a>.</em></p>
<blockquote>
<h1>11.1.0</h1>
<h3>Features</h3>
<ul>
<li>Add <code>#[ts(repr(enum))]</code> attribute (<a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/425">#425</a>)</li>
<li>Add support for <code>#[ts(optional_fields)]</code> in enums and
enum variants (<a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/432">#432</a>)</li>
<li>Deprecate <code>import-esm</code> cargo feature in favour of
<code>RS_RS_IMPORT_EXTENSION</code> (<a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/423">#423</a>)</li>
</ul>
<h3>Fixes</h3>
<ul>
<li>Fix bindings for <code>chrono::Duration</code> (<a
href="https://redirect.github.com/Aleph-Alpha/ts-rs/pull/434">#434</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
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dependabot[bot] · 2026-01-12 10:13:27 -08:00

45ffcdf886

chore(deps): bump tui-scrollbar from 0.2.1 to 0.2.2 in /codex-rs (#9071 )

Bumps [tui-scrollbar](https://github.com/joshka/tui-widgets) from 0.2.1
to 0.2.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/joshka/tui-widgets/releases">tui-scrollbar's
releases</a>.</em></p>
<blockquote>
<h2>tui-scrollbar-v0.2.2</h2>
<h3>🚀 Features</h3>
<ul>
<li><em>(scrollbar)</em> Support crossterm 0.28 (<a
href="https://redirect.github.com/joshka/tui-widgets/issues/172">#172</a>)
<blockquote>
<p>Add versioned crossterm feature flags and re-export the selected
version
as <code>tui_scrollbar::crossterm</code>.</p>
<p>Add CI checks for the feature matrix and a docs.rs-style build.</p>
<hr />
</blockquote>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/joshka/tui-widgets/blob/main/CHANGELOG.md">tui-scrollbar's
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<blockquote>
<h2>[0.2.2] - 2024-07-25</h2>
<h3>⚙️ Miscellaneous Tasks</h3>
<ul>
<li>Updated the following local packages: tui-big-text</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/joshka/tui-widgets/commit/5c7acc5d2c71e077dc5b098c04e3abe26eef6939"><code>5c7acc5</code></a>
chore(tui-scrollbar): release v0.2.2 (<a
href="https://redirect.github.com/joshka/tui-widgets/issues/173">#173</a>)</li>
<li><a
href="https://github.com/joshka/tui-widgets/commit/24b14c25cb4030b041b3b1d16b39e274b8a4fe23"><code>24b14c2</code></a>
feat(scrollbar): support crossterm 0.28 (<a
href="https://redirect.github.com/joshka/tui-widgets/issues/172">#172</a>)</li>
<li>See full diff in <a
href="https://github.com/joshka/tui-widgets/compare/tui-scrollbar-v0.2.1...tui-scrollbar-v0.2.2">compare
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dependabot[bot] · 2026-01-12 10:11:37 -08:00

06088535ad

feat: wire fork to codex cli (#8994 )

## Summary
- add `codex fork` subcommand and `/fork` slash command mirroring resume
- extend session picker to support fork/resume actions with dynamic
labels in tui/tui2
- wire fork selection flow through tui bootstraps and add fork-related
tests

Anton Panasenko · 2026-01-12 10:09:11 -08:00

4223948cf5

nit: add docstring (#9099 )

Add docstring on `ToolHandler` trait

jif-oai · 2026-01-12 17:40:52 +00:00

898e5f82f0

3718 Commits