debug-optimize-lcp
ChromeDevTools/chrome-devtools-mcp / skills/debug-optimize-lcp
finds why main content loads late with Chrome DevTools , which improves: pages that display faster
Details
- judge’s score
- 9/10
- place
- outside the packs
- publisher
- ChromeDevTools
- status
- new
- pinned commit
- 384d9aa on GitHub (new tab)
- skill’s last commit
- Oct 13, 2026
- repo stars
- 53,905
- main type
- Website
Judgement
Precise, targeted LCP workflow, with executable snippets and split into sub-sections. Weak points: generic reminders about thresholds, a 73% statistic without source, and unverified MCP tool names.
reservations
- The figure '73% of mobile pages have an image as LCP element' is unsourced.
- MCP tool names (performance_start_trace, performance_analyze_insight, emulate…) are not verified against the official tool schema; to be validated before use.
- The LCP definition and thresholds section repeats knowledge Claude already has, and part of the appendices (breakdown, elements) duplicate the content.
- Triggering
- 2/2
- Added value
- 2/2
- Precision
- 2/2
- Scope
- 2/2
- Quality
- 1/2
Alerts
no alerts
Neither the static scan nor the judge flagged a risk for this skill.
Original description
Guides debugging and optimizing Largest Contentful Paint (LCP) using Chrome DevTools MCP tools. Use this skill whenever the user asks about LCP performance, slow page loads, Core Web Vitals optimization, or wants to understand why their page's main content takes too long to appear. Also use when the…
added on Oct 19, 2026 · license Apache-2.0