signals-scout-web-vitals
signals-scout-web-vitals is an agent skill published by posthog, listed under review & testing. It lives in the PostHog/skills repository, which has 75 GitHub stars and is licensed under MIT; we last read it on 2026-10-12.
Scouts Core Web Vitals (`$web_vitals`) for each page, monitoring p75 LCP, INP, CLS, and FCP against Google's thresholds and historical data, identifying poor-performing pages, band crossings, and sharp regressions, and correlating these with deploys and flag rollouts.
Install
skills is a generic installer for any repository of Claude agent skills -- it reads PostHog/skills’s own structure rather than assuming one, the same way this page reads the skill’s own SKILL.md rather than assuming a format.
npx skills add PostHog/skills
Maintenance
Signals scout for Core Web Vitals (`$web_vitals`). Watches each page's p75 LCP / INP / CLS / FCP against Google's thresholds and its own history — poor-band pages, band crossings, sharp regressions — and dates each regression against deploys and flag rollouts.
signals-scout-web-vitals compared with similar skills
| Skill | Publisher | What it does | Repo stars | Last update |
|---|---|---|---|---|
| signals-scout-web-vitals (this page) | posthog | Signals scout for Core Web Vitals (`$web_vitals`). Watches each page's p75 LCP / INP / CLS / FCP against Goog… | 75 | 2026-10-25 |
| code-review | mattpocock | Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does t… | 303,549 | 2026-10-22 |
| scaffold-exercises | mattpocock | Create exercise directory structures with sections, problems, solutions, and explainers that pass linting. Us… | 303,549 | 2026-10-22 |
| tdd | mattpocock | Test-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-gree… | 303,549 | 2026-10-22 |
| webapp-testing | anthropic | Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend… | 183,845 | 2026-10-09 |
| browser-testing-with-devtools | addyosmani | Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browse… | 110,611 | 2026-10-13 |
| code-review-and-quality | addyosmani | Conducts multi-axis code review. Use before merging any change. Use when reviewing code written by yourself,… | 110,611 | 2026-10-13 |
Skills from the same repository first, then others for this job by repository stars. Figures are from each repository when we last read it.
Common questions about signals-scout-web-vitals
- What does signals-scout-web-vitals do?
- Scouts Core Web Vitals (`$web_vitals`) for each page, monitoring p75 LCP, INP, CLS, and FCP against Google's thresholds and historical data, identifying poor-performing pages, band crossings, and sharp regressions, and correlating these with deploys and flag rollouts.
- How do I install signals-scout-web-vitals?
- Run npx skills add PostHog/skills. The skills installer reads the repository’s own structure, so it works for any repository of agent skills.
- Who publishes signals-scout-web-vitals?
- posthog.
- Is signals-scout-web-vitals maintained, and what licence does it use?
- Its repository has 75 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-25. The repository declares the MIT licence.
More agent skills for review & testing
- browser-testing-with-devtoolsby addyosmani
- code-review-and-qualityby addyosmani
- code-simplificationby addyosmani
- doubt-driven-developmentby addyosmani
- vitestby antfu
- webapp-testingby anthropic