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Helmut Januschka 7daaabc795 fix: add tui.alternate_screen config and --no-alt-screen CLI flag for Zellij scrollback (#8555 )

Fixes #2558

Codex uses alternate screen mode (CSI 1049) which, per xterm spec,
doesn't support scrollback. Zellij follows this strictly, so users can't
scroll back through output.

**Changes:**
- Add `tui.alternate_screen` config: `auto` (default), `always`, `never`
- Add `--no-alt-screen` CLI flag
- Auto-detect Zellij and skip alt screen (uses existing `ZELLIJ` env var
detection)

**Usage:**
```bash
# CLI flag
codex --no-alt-screen

# Or in config.toml
[tui]
alternate_screen = "never"
```

With default `auto` mode, Zellij users get working scrollback without
any config changes.

---------

Co-authored-by: Josh McKinney <joshka@openai.com>

7daaabc795 · 2026-01-09 18:38:26 +00:00

History

src

fix: add tui.alternate_screen config and --no-alt-screen CLI flag for Zellij scrollback (#8555 )

2026-01-09 18:38:26 +00:00

Cargo.toml

fix: introduce AbsolutePathBuf as part of sandbox config (#7856 )

2025-12-12 15:25:22 -08:00

README.md

fix: separate codex mcp into codex mcp-server and codex app-server (#4471 )

2025-09-30 07:06:18 +00:00

README.md

codex-protocol

This crate defines the "types" for the protocol used by Codex CLI, which includes both "internal types" for communication between codex-core and codex-tui, as well as "external types" used with codex app-server.

This crate should have minimal dependencies.

Ideally, we should avoid "material business logic" in this crate, as we can always introduce Ext-style traits to add functionality to types in other crates.