meticulous-simulate-and-diff
alwaysmeticulousSee what changed visually and why.
visual regression testing
What it does
Runs a recorded session against a live URL and explains visual regressions using screenshots, pixel diffs, and HTML diffs.
When to use it
Use when checking whether a code change introduced visual regressions in a specific recorded session.
How to use it
Give it a session ID; it runs the simulation and returns a human-readable explanation of visual changes and their likely UI causes.
What you provide
- a session ID
Uses
Access · 3
This skill
Meticulous
Sends simulation data and feedback (irreversible)
appUrl
Reads the live application
~/.meticulous/replays/
Stores local replay artifacts
Good to know
- cannot be undone: Meticulous
- acts without asking
What you need · 2
The meticulous CLI must be available to run the simulation and submit feedback.
The workflow requires running meticulous-cli-update first unless it already ran earlier in the conversation.
About this skill
- Visibility
- Public
- Repository
- alwaysmeticulous/skills
- Created
- Oct 8, 2026
- Updated
- Oct 8, 2026
- Files
- 1