### Overview
This PR introduces the following changes:
1. Adds a unified mechanism to convert ResponseItem into EventMsg.
2. Ensures that when a session is initialized with initial history, a
vector of EventMsg is sent along with the session configuration. This
allows clients to re-render the UI accordingly.
3. Added integration testing
### Caveats
This implementation does not send every EventMsg that was previously
dispatched to clients. The excluded events fall into two categories:
• “Arguably” rolled-out events
Examples include tool calls and apply-patch calls. While these events
are conceptually rolled out, we currently only roll out ResponseItems.
These events are already being handled elsewhere and transformed into
EventMsg before being sent.
• Non-rolled-out events
Certain events such as TurnDiff, Error, and TokenCount are not rolled
out at all.
### Future Directions
At present, resuming a session involves maintaining two states:
• UI State
Clients can replay most of the important UI from the provided EventMsg
history.
• Model State
The model receives the complete session history to reconstruct its
internal state.
This design provides a solid foundation. If, in the future, more precise
UI reconstruction is needed, we have two potential paths:
1. Introduce a third data structure that allows us to derive both
ResponseItems and EventMsgs.
2. Clearly divide responsibilities: the core system ensures the
integrity of the model state, while clients are responsible for
reconstructing the UI.
- Summary:
- Updated the hardcoded hyperlink shown when no MCP servers are
configured to point at the canonical docs section:
- From: codex-rs/config.md#mcp_servers (moved/obsolete)
- To: docs/config.md#mcp_servers (correct GitHub path)
- Rationale:
- The TUI link was pointing to a file that only redirects; this makes
the link accurate and reduces user confusion.
- Validation:
- Verified that the target anchor exists at:
https://github.com/openai/codex/blob/main/docs/config.md#mcp_servers
- UI behavior unchanged otherwise (rendering of link text remains “MCP
docs”).
- Impact:
- One-line change in TUI display logic; no functional behavior change.
Co-authored-by: Michael Bolin <mbolin@openai.com>
Hide the “/init” suggestion in the new-session banner when an
`AGENTS.md` exists anywhere from the repo root down to the current
working directory.
Changes
- Conditional suggestion: use `discover_project_doc_paths(config)` to
suppress `/init` when agents docs are present.
- TUI style cleanup: switch banner construction to `Stylize` helpers
(`.bold()`, `.dim()`, `.into()`), avoiding `Span::styled`/`Span::raw`.
- Fixture update: remove `/init` line in
`tui/tests/fixtures/ideal-binary-response.txt` to match the new banner.
Validation
- Ran formatting and scoped lint fixes: `just fmt` and `just fix -p
codex-tui`.
- Tests: `cargo test -p codex-tui` passed (`176 passed, 0 failed`).
Notes
- No change to the `/init` command itself; only the welcome banner now
adapts based on presence of `AGENTS.md`.
## What
Make slash commands (/init, /status, /approvals, /model) bold and white
in the welcome message for better visibility.
<img width="990" height="286" alt="image"
src="https://github.com/user-attachments/assets/13f90e96-b84a-4659-aab4-576d84a31af7"
/>
## Why
The current welcome message displays all text in a dimmed style, making
the slash commands less prominent. Users need to quickly identify
available commands when starting Codex.
## How
Modified `tui/src/history_cell.rs` in the `new_session_info` function
to:
- Split each command line into separate spans
- Apply bold white styling to command text (`/init`, `/status`, etc.)
- Keep descriptions dimmed for visual contrast
- Maintain existing layout and spacing
## Test plan
- [ ] Run the TUI and verify commands appear bold in the welcome message
- [ ] Ensure descriptions remain dimmed for readability
- [ ] Confirm all existing tests pass
Use emoji variation selector (VS16) for the keyboard icon so it
consistently renders as emoji (⌨️) rather than text (⌨) across
terminals.
Touches TUI command rendering for unknown parsed commands. No behavior
change beyond display.
Esc and Ctrl+C while a task is running should do the same thing. There
were some cases where pressing Esc would leave a "stuck" widget in the
history; this fixes that and cleans up the logic so there's just one
path for interrupting the task. Also clean up some subtly mishandled key
events (e.g. Ctrl+D would quit the app while an approval modal was
showing if the textarea was empty).
---------
Co-authored-by: Ahmed Ibrahim <aibrahim@openai.com>
I noticed that when running `/status` on Windows, I saw something like:
```
Path: ~/src\codex
```
so now it should be:
```
Path: ~\src\codex
```
Admittedly, `~` is understood by PowerShell but not on Windows, in
general, but it's much less verbose than `%USERPROFILE%`.
Adds web_search tool, enabling the model to use Responses API web_search
tool.
- Disabled by default, enabled by --search flag
- When --search is passed, exposes web_search_request function tool to
the model, which triggers user approval. When approved, the model can
use the web_search tool for the remainder of the turn
<img width="1033" height="294" alt="image"
src="https://github.com/user-attachments/assets/62ac6563-b946-465c-ba5d-9325af28b28f"
/>
---------
Co-authored-by: easong-openai <easong@openai.com>
- For selectable options, use sentences starting in lowercase and not
ending with periods. To be honest I don't love this style, but better to
be consistent for now.
- Tweak some other strings.
- Put in more compelling suggestions on launch. Excited to put `/mcp` in
there next.
Codex created this PR from the following prompt:
> upgrade this entire repo to Rust 1.89. Note that this requires
updating codex-rs/rust-toolchain.toml as well as the workflows in
.github/. Make sure that things are "clippy clean" as this change will
likely uncover new Clippy errors. `just fmt` and `cargo clippy --tests`
are sufficient to check for correctness
Note this modifies a lot of lines because it folds nested `if`
statements using `&&`.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/2465).
* #2467
* __->__ #2465
## Summary
- just want to declutter the top level workspace section
## Testing
- `just fmt`
- `just fix` *(fails: error[E0658] let expressions in this position are
unstable in codex-protocol)*
- `cargo test -p codex-tui` *(fails: error[E0658] let expressions in
this position are unstable)*
------
https://chatgpt.com/codex/tasks/task_i_68a4a7311dbc832caf14f52e0fbaf9c2
## Summary
Adds a `/mcp` command to list active tools. We can extend this command
to allow configuration of MCP tools, but for now a simple list command
will help debug if your config.toml and your tools are working as
expected.
New style guide:
# Headers, primary, and secondary text
- **Headers:** Use `bold`. For markdown with various header levels,
leave in the `#` signs.
- **Primary text:** Default.
- **Secondary text:** Use `dim`.
# Foreground colors
- **Default:** Most of the time, just use the default foreground color.
`reset` can help get it back.
- **Selection:** Use ANSI `blue`. (Ed & AE want to make this cyan too,
but we'll do that in a followup since it's riskier in different themes.)
- **User input tips and status indicators:** Use ANSI `cyan`.
- **Success and additions:** Use ANSI `green`.
- **Errors, failures and deletions:** Use ANSI `red`.
- **Codex:** Use ANSI `magenta`.
# Avoid
- Avoid custom colors because there's no guarantee that they'll contrast
well or look good on various terminal color themes.
- Avoid ANSI `black`, `white`, `yellow` as foreground colors because the
terminal theme will do a better job. (Use `reset` if you need to in
order to get those.) The exception is if you need contrast rendering
over a manually colored background.
(There are some rules to try to catch this in `clippy.toml`.)
# Testing
Tested in a variety of light and dark color themes in Terminal, iTerm2, and Ghostty.
Add env var to show the raw, unparsed command line under parsed
commands. When we have transcript mode we should show the full command
there, but this is useful for debugging.
The "display format" of commands was sometimes producing incorrect
quoting like `echo foo '>' bar`, which is importantly different from the
actual command that was being run. This refactors ParsedCommand to have
a string in `cmd` instead of a vec, as a `vec` can't accurately capture
a full command.
refactors HistoryCell to be a trait instead of an enum. Also collapse
the many "degenerate" HistoryCell enums which were just a store of lines
into a single PlainHistoryCell type.
The goal here is to allow more ways of rendering history cells (e.g.
expanded/collapsed/"live"), and I expect we will return to more varied
types of HistoryCell as we develop this area.
Wait for newlines, then render markdown on a line by line basis. Word wrap it for the current terminal size and then spit it out line by line into the UI. Also adds tests and fixes some UI regressions.
## Summary
- Display "Update plan" instead of "Update to do" when the plan is
updated in the TUI
## Testing
- `just fmt`
- `just fix` *(fails: E0658 `let` expressions in this position are
unstable)*
- `cargo test --all-features` *(fails: E0658 `let` expressions in this
position are unstable)*
------
https://chatgpt.com/codex/tasks/task_i_6897f78fc5908322be488f02db42a5b9
Right now, every time an exec ends, we emit it to history which makes it
immutable. In order to be able to update or merge successive tool calls
(which will be useful after https://github.com/openai/codex/pull/2095),
we need to retain it as the active cell.
This also changes the cell to contain the metadata necessary to render
it so it can be updated rather than baking in the final text lines when
the cell is created.
Part 1: https://github.com/openai/codex/pull/2095
Part 3: https://github.com/openai/codex/pull/2110
# Note for reviewers
The bulk of this PR is in in the new file, `parse_command.rs`. This file
is designed to be written TDD and implemented with Codex. Do not worry
about reviewing the code, just review the unit tests (if you want). If
any cases are missing, we'll add more tests and have Codex fix them.
I think the best approach will be to land and iterate. I have some
follow-ups I want to do after this lands. The next PR after this will
let us merge (and dedupe) multiple sequential cells of the same such as
multiple read commands. The deduping will also be important because the
model often reads the same file multiple times in a row in chunks
===
This PR formats common commands like reading, formatting, testing, etc
more nicely:
It tries to extract things like file names, tests and falls back to the
cmd if it doesn't. It also only shows stdout/err if the command failed.
<img width="770" height="238" alt="CleanShot 2025-08-09 at 16 05 15"
src="https://github.com/user-attachments/assets/0ead179a-8910-486b-aa3d-7d26264d751e"
/>
<img width="348" height="158" alt="CleanShot 2025-08-09 at 16 05 32"
src="https://github.com/user-attachments/assets/4302681b-5e87-4ff3-85b4-0252c6c485a9"
/>
<img width="834" height="324" alt="CleanShot 2025-08-09 at 16 05 56 2"
src="https://github.com/user-attachments/assets/09fb3517-7bd6-40f6-a126-4172106b700f"
/>
Part 2: https://github.com/openai/codex/pull/2097
Part 3: https://github.com/openai/codex/pull/2110
