Individual skill
preview
Stand up the project's live app and hand it to the user to try a change firsthand, then act on their verdict once they reply. Use when the user asks to "preview the change", "let me try it", "spin up the app so I can test it", "set it up so I can poke at it", or before finalizing a UI/UX change that needs human eyes.
claude/skills/preview/SKILL.md
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- Last checked
- Nov 7, 2026
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- Repository last updated
- Oct 23, 2026
- License
- MIT
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- agent-skills Repository topic
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- claude-skills Repository topic
- developer-tools Repository topic
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SKILL.mdcore · 5,460 bytes
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# Preview
Bring up the running app and let the user drive it themselves to judge the change, then act on their verdict.
## Step 1: Determine Scope
Resolve what to preview using the first match:
1. **User-specified** — the user says what to look at. Use that.
2. **PR** — a PR URL or number is provided. Fetch its details and read the changed code.
3. **Conversation context** — prior conversation contains recent work. Extract what changed, where it lives, and the expected behavior.
4. **App-level discovery** — fresh context with no prior work. Examine entry points, routes, and the README to identify the app's core user-facing flows.
If the resolved scope has no user-visible surface to try (a CLI-only change, a library with no entry point, backend work with no UI to look at), present this message: "Nothing to preview — <one-line reason>." Then use the TaskList tool and proceed to any remaining task.