TUI Review

Critically review a terminal UI by running it live in tmux, screenshotting every key state, and testing it against 10 UX dimensions. Benchmark against Claude Code, OpenCode, and Codex — the three best-in-class AI terminal UIs.

Gold standard: every keypress produces visible change within 100ms; every state has a designed appearance; color communicates meaning; no dead keys, no blank screens, no stuck states.

Process

1. Launch the TUI in tmux and take an initial screenshot — first impressions count.
2. Discover the UI: find help, navigation, and input areas.
3. Test each of the 10 dimensions, screenshotting every key state.
4. Take resize screenshots at 80x24, 120x30, 160x40, and 200x50.
5. Open every screenshot with the Read tool. This is what makes the review visual — you are looking at the rendered TUI and judging color, layout, contrast, and craft. A capture nobody views proves nothing.
6. Run the color assertions as an automated cross-check.
7. Write the graded report.

Setup

Source the tmux helpers and set the capture directory:

source .claude/skills/tmux-cli-test/scripts/tmux_helpers.sh
TMUX_TEST_WIDTH=140
TMUX_TEST_HEIGHT=40
TMUX_TEST_POLL_INTERVAL=0.1
TMUX_SCREENSHOT_DIR="/tmp/tui-review-screenshots"
mkdir -p "$TMUX_SCREENSHOT_DIR"

Before launching anything, read .claude/skills/tmux-cli-test/references/color-capture.md and follow it. It covers the tmux true-color override that capture-pane -e needs, the take_color_screenshot helper, resize sweeps, and the color assertions. Without that override every screenshot comes out monochrome and the visual review is worthless. (Adjust the path if the skills are installed under .agents/skills/.)

Read references/report.md for the screenshot plan, the visual review checklist, and the report template.

The 10 Dimensions

Read references/heuristics.md for the test procedure, pass/fail criteria, and best-in-class example behind each one.

1. Responsiveness — every keypress produces visible change within 100ms
2. Input Mode Integrity — trigger characters don't hijack mid-sentence text
3. Visual Feedback — every app state has a distinct visual indicator
4. Navigation & Escape — Escape always goes back; never get stuck
5. Feedback Loops — submit triggers clear, echo, loading, stream, completion
6. Error & Empty States — every state has a designed appearance, no blank screens
7. Layout & Resize — usable at 80x24, scales to 200x50+
8. Keyboard Design — all features keyboard-reachable, shortcuts discoverable
9. Permission Flows — destructive actions preview and require confirmation
10. Visual Design & Color — color carries meaning, adequate contrast, consistent palette, and borders that earn their place

Grading

A = no issues. B = minor polish needed. C = noticeable UX friction. D = broken workflows. F = unusable.

Facing an app you know nothing about? references/report.md ends with a keypress order that surfaces the most in the fewest moves.