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6f77b70ff3
## Why We added Zellij-specific TUI workarounds because older Zellij behavior did not work with Codex's normal terminal model: - #8555 made `tui.alternate_screen = "auto"` disable alternate screen in Zellij so transcript history stayed available. - #16578 avoided scroll-region operations in Zellij by emitting raw newlines and using a separate composer styling path. This PR removes both workarounds because the latest Zellij release tested locally (`zellij 0.44.1`) works correctly with Codex's standard TUI behavior: normal alternate-screen handling, redraw, and history insertion. ## What Changed - Removed the `InsertHistoryMode::Zellij` path and the Zellij-only newline scrollback insertion behavior. - Removed cached `is_zellij` state from the TUI and composer. - Removed Zellij-specific composer styling, the helper snapshot, and the `TerminalInfo::is_zellij()` convenience method that only served this workaround. - Changed `tui.alternate_screen = "auto"` to use alternate screen for Zellij too; `--no-alt-screen` and `tui.alternate_screen = "never"` still preserve the inline mode escape hatch. - Updated the generated config schema description for `tui.alternate_screen`. ## How to Test Manual smoke path used with `zellij 0.44.1`: 1. Build and run this branch inside a Zellij `0.44.1` session with default config. 2. Start Codex normally and produce enough assistant/tool output to create scrollback. 3. Confirm the transcript remains readable, the composer renders normally, and scrolling through terminal history works. 4. Resize the Zellij pane while output exists and confirm the TUI redraws without duplicated, missing, or stale rows. 5. Compare with `--no-alt-screen` or `-c tui.alternate_screen=never` if you want to verify the inline fallback still works. Targeted tests: - `just write-config-schema` - `just fmt` - `just fix -p codex-tui` - `cargo test -p codex-terminal-detection` - `cargo test -p codex-tui alternate_screen_auto_uses_alt_screen` Attempted but did not complete locally: - `cargo test -p codex-tui` built and ran the new test successfully, then failed later on unrelated local failures in `status_permissions_full_disk_managed_*` and a stack overflow in `tests::fork_last_filters_latest_session_by_cwd_unless_show_all`. ## Documentation No developers.openai.com Codex documentation update is needed for this revert.
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.