Casey Chow 41652665f5 [codex] Add tmux-aware OSC 9 notifications (#17836) ...

## Summary
- wrap OSC 9 notifications in tmux's DCS passthrough so terminal
notifications make it through tmux
- use codex-terminal-detection for OSC 9 auto-selection so tmux sessions
inherit the underlying client terminal support
- add focused notification backend tests for plain OSC 9 and
tmux-wrapped output

## Stack
- base PR: #18479
- review order: #18479, then this PR

## Why
Tmux does not forward OSC 9 notifications directly; the sequence has to
be wrapped in tmux's DCS passthrough envelope. Codex also had local
notification heuristics that could miss supported terminals when running
under tmux, even though codex-terminal-detection already knows how to
attribute tmux sessions to the client terminal.

## Validation
- `just fmt`
- `cargo test -p codex-tui` *(currently blocked by an unrelated existing
compile error in `app-server/src/message_processor.rs:754` referencing
`connection_id` out of scope; not caused by this change)*

Co-authored-by: Codex <noreply@openai.com>

41652665f5 · 2026-04-21 17:10:36 +00:00

History

..

bel.rs

Rename tui_app_server to tui (#16104)

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

mod.rs

[codex] Add tmux-aware OSC 9 notifications (#17836)

2026-04-21 17:10:36 +00:00

osc9.rs

[codex] Add tmux-aware OSC 9 notifications (#17836)

2026-04-21 17:10:36 +00:00