codex

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Eric Traut 2dd6734dd3 fix(tui): use BEL for terminal title updates (#18261 )

## Summary

Fixes #18160.

iTerm2 can append the current foreground process to tab titles, and
Codex's terminal-title updates were causing that decoration to appear as
`(codex")` with a stray trailing quote. Codex was writing OSC 0 title
sequences terminated with ST (`ESC \`). Some terminal title integrations
appear to accept that title update but still expose the ST terminator in
their own process/title decoration.

## Changes

- Update `codex-rs/tui/src/terminal_title.rs` to terminate OSC 0 title
updates with BEL instead of ST.
- Update the focused terminal-title encoding test to assert the
BEL-terminated sequence.

## Compatibility

This should be low risk: the title payload and update timing are
unchanged, and BEL is the form already emitted by
`crossterm::terminal::SetTitle` in the crossterm version used by this
repository. BEL is also the widely supported xterm-family title
terminator used by common terminals and multiplexers. The main
theoretical risk would be a very old or unusual terminal that accepted
only ST and not BEL for OSC title termination, but that is unlikely
compared with the observed iTerm2 issue.

## Verification

- `cargo test -p codex-tui terminal_title`
- `cargo test -p codex-tui`

2dd6734dd3 · 2026-04-17 08:39:37 -07:00

History

frames

Rename tui_app_server to tui (#16104 )

2026-03-28 11:23:07 -06:00

src

fix(tui): use BEL for terminal title updates (#18261 )

2026-04-17 08:39:37 -07:00

tests

Stabilize Bazel tests (timeout tweaks and flake fixes) (#17791 )

2026-04-16 07:57:51 -07:00

BUILD.bazel