Is Signals Scout Web Vitals safe and trustworthy?

tashan scores Signals Scout Web Vitals on public evidence — it is currently active. Audit scope: OSV advisories, install-time scripts, build provenance and declared permission surface. We do not review source code or execute the capability.

How do I install Signals Scout Web Vitals?

Drop the skill folder into ~/.claude/skills/ (user scope) or .claude/skills/ (project scope).

Who maintains Signals Scout Web Vitals?

10 GitHub contributors, source: PostHog/ai-plugin.

‹ The Index

Signals Scout Web Vitals

skill

Focused Signals scout for PostHog projects capturing Core Web Vitals ($webvitals). 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. …

Works with: Claude Code (native) · Cursor, Codex CLI (manual)
native: this artifact type is that client's own format

Install (Claude Code):

cp -r signals-scout-web-vitals ~/.claude/skills/

Adoption: 1 repos
Upkeep: 96.0
Freshness: 92.0
Evidence coverage: 84% of the inputs this score can use — the rest are unknown, and the score is discounted for it
Health: active
Contributors: 10

Security audit

Not scanned yet. We audit npm-published capabilities for known advisories, install-time scripts and permission surface; this one has no npm package we can resolve, or has not reached the queue.

Its own instructions

Its SKILL.md shows worked examples and states a limitation.

Read from the capability’s own SKILL.md. This is not a grade and does not compare to the instruction-depth verdict on an MCP server — a skill has no tools to document, so that rubric does not apply to it.

You searched for one. Check the rest of your stack:

npx tashan-cli doctor

Reads the config already on your machine and names what is dead, deprecated or running code at install time. No account, nothing uploaded.

tashan Pro$6/mo

Pro adds the history to tashan doctor, so a run over your own config says which of yours gained an advisory, started running an install script, or lost its last maintainer — and what to move to.

Every score since we started measuring, for any capability
The named replacement when something you run is dying — not just that it is
tashan doctor over the config you already have, on your machine

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source ↗ · skill:PostHog/signals-scout-web-vitals

Everything on this page is public evidence and free. What it cannot know is whether you run this — check your whole config, free, in the browser. tashan Pro adds the series behind each row and names a replacement for anything dying.

Already running this? Check your whole config — free, in your browser, nothing installed. Or npx tashan-cli doctor locally, which sends nothing at all.

Measured 2026-08-20 · scorer s5 · how · something wrong here?