Expo Skill Eval
Evaluate Expo skills in this repo end-to-end - trigger accuracy, generated code...
Install
npx skills add expo/skills --skill expo-skill-eval -g -a claude-code -y- Repository
- expo/skills4k
- Category
- Testing
- Updated
- 3d ago
- License
- MIT
- Context cost
- Mediumabout 3,000 tokens
- Runs scripts
- Yes, review before use
What it does
Evaluate Expo skills in this repo end-to-end - trigger accuracy, generated code quality, and runtime screenshots on iOS simulator and Android emulator via Expo Go (web optional). Use when the user wants to eval an Expo skill, test that a skill produces working code, benchmark a skill with device screenshots, or verify a skill's output renders correctly.
Expo Skill Eval
Evaluates skills in plugins/expo/skills/ for trigger accuracy, generated code quality, and/or runtime rendering in Expo Go.
Requirements: macOS with Xcode (iOS simulators), Android SDK with at least one AVD, and bun. No other device tooling is assumed.
Workspace root: /private/tmp/expo-skill-eval-<skill-name>/iteration-N/ (e.g. /private/tmp/expo-skill-eval-expo-ui/iteration-4/).
Before starting, clarify scope
Confirm all of the following up front, before any pipeline work, don't skip any (only skip a given item if the request already states that choice). Batch them into AskUserQuestion calls of ≤4 questions each, in this order:
- Which skill to eval (if not clear from the request).
- Prompts, which prompts drive the eval. Built-in prompts (from the skill's eval cases) are pre-selected all; drop any, add a custom text prompt, or build from an uploaded screenshot (a target UI the skill must reproduce). See Prompts below.
- What to verify, one multi-select of three options: Runtime + screenshots / Trigger accuracy / Code checks (no device). See What to verify below.
- Expo SDK, latest (default, auto-detected) or a pinned version.
- Runner, Expo Go (default) or development build.
- Platforms, iOS / Android / web (always offer all three).
- Permission flag for
claude -p, skip-permissions (default) or accept-edits. - Viewer delivery, local only (default) or publish a shareable Artifact.
- If trigger accuracy is selected, confirm the published
expoplugin is disabled (or not installed).
Each is detailed below. Items 4, 6 (SDK, runner, platforms) fit naturally in one AskUserQuestion call.
If the skill to eval is not clear from the request, list available skills from plugins/expo/skills/ and ask which one to evaluate.
