Specification: Craft pass

Branch: gui/craft-pass | Created: 2026-10-10 Status: Implemented and verified Input: "It still looks like a Rust prototype." Find what reads as unfinished in a realistic 1920×1080 scene (agents working, done, waiting; split panes with real git log and ls output) and fix it.

Findings and fixes

1. Stale agent messages (P1)

A working agent's row said "session started" for its whole turn, because SessionStart set last_message and nothing cleared it. Acceptance: A hook event that moves a pane into Working without a message of its own clears the previous message, so the row shows the run state ("Working…", "Working for 2m…") until the turn says something. A message on that same event, or later events, still wins.

2. Light terminals were hard to read (P1)

One GNOME palette served both schemes; its yellow (#f5c211, the git log hash colour) and bright greens nearly vanish on white. Acceptance: Dark panes keep GNOME's palette. Light panes use a dedicated palette in which all 16 inks except the two greys read at 4.5:1 or better on white; a unit test computes WCAG contrast for each.

3. Cramped grid (P2)

Acceptance: Terminal rows get 1.1× leading (set_cell_height_scale).

4. Noisy pane titles (P2)

Pane headers repeated the shell's window title verbatim (simone@luxhole: ~/.t3/…). Acceptance: A leading user@host: (or user@host: directly before a ~ or / path) is dropped from the displayed title when the host is the local machine (short, case-insensitive name); the full working directory stays in the tooltip. A different host, such as an SSH session, keeps its prefix because it says the pane is remote. Other titles are untouched; a unit test covers the edge cases.

Requirements

• FR-001: Server-side message clearing in the hook path only; IPC shape unchanged.
• FR-002: GUI changes confined to terminal.rs; no new preferences or dependencies.

Success criteria

hook_event_drives_codex_lifecycle asserts the cleared message (fails without the fix). The palette contrast and title unit tests pass. Before/after 1920×1080 captures were reviewed in light and dark. scripts/verify.sh full passes.

Post-merge review — 2026-10-11

The original white-only palette check missed lower contrast on the tinted Grove/Ocean/Ember/Iris backgrounds. ANSI grey output also fell as low as 3.04:1 on white. All 16 light inks now require at least 4.5:1 on every actual Theme::pane_bg(false) background, without grey exceptions. Five inks are darkened slightly; dark mode and terminal geometry stay unchanged.

Host cleanup compares two fully qualified hostnames in full (case-insensitive), so build.office.example does not hide build.production.example. Short-name matching remains available when either counterpart is unqualified. Unmatched titles retain their original whitespace. Regression tests cover both cases.