Iterative Frontend Development with Meticulous

Use this skill when implementing a multi-step frontend change. After each step, run a quick local visual check using Meticulous to catch regressions and unintended side effects early. After all steps are complete, run a full cloud test run to validate across all recorded sessions.

Before starting, run the meticulous-cli-update skill to ensure the Meticulous CLI is up to date — unless it has already run earlier in this conversation, in which case skip it.

Prerequisites

• Local dev server running (e.g. npm run dev or pnpm dev), serving the app at a known URL such as http://localhost:3000
• Authenticated with Meticulous: run meticulous auth whoami to log in via OAuth (an API token via METICULOUS_API_TOKEN or ~/.meticulous/config.json also works)
• Meticulous CLI installed and on PATH (the meticulous-cli-update skill handles this)

Per-step loop

Repeat the following for each step of your change.

Step 1 — Implement the step's changes