signals-scout-web-vitals

signals-scout-web-vitals is a Web performance & accessibility skill for AI agents, published by PostHog in the ai-plugin repository on GitHub. Skillspace rates signals-scout-web-vitals D (59/100) and it passed the safety scan; the rating is based on static analysis only.

Focused Signals scout for PostHog projects capturing Core Web Vitals (`$web_vitals`). Watches each page's p75 LCP / INP / CLS / FCP against the absolute Google thresholds (good / needs-improvement / poor) and against its own history: pages standing in the poor band, pages crossing a band boundary after a deploy, and sharp in-band regressions. Reads the historical trajectory — not just the moment a value changes — so a page that is steadily slow surfaces even when nothing moved today. Every finding carries a metric-specific cause hypothesis and a concrete remediation, filed as a report in the inbox only above the confidence bar; otherwise writes durable memory and closes out empty. Self-contained peer in the signals-scout-* fleet.

Grade
D
Quality
59 / 100
Safety
Passed
GitHub stars
59

Unproven: rated by static analysis only, not yet compared head-to-head.

Our two independent classifiers differ on this skill's category, so treat the placement as provisional.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubPostHog/ai-plugin

Our review

Architecture
79 / 100
Maturity
Structured: ships references or scripts
Security scan
Low-risk patterns
License
Not declared. Check the repository before reusing it.
Adoption
Adopted by 2 other repositories, in 1 collections

What the scanner flagged

  • mentions secrets in text

Not checked yet

  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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