Measure and optimize web performance with Lighthouse CI, WebPageTest, bundle analysis, and Core Web Vitals monitoring. [EXPLICIT] Trigger: "performance test", "Lighthouse", "Core Web Vitals", "bundle size"
From jm-adknpx claudepluginhub javimontano/jm-adk-alfaThis skill is limited to using the following tools:
agents/guardian.mdagents/lead.mdagents/specialist.mdagents/support.mdevals/evals.jsonknowledge/body-of-knowledge.mdknowledge/knowledge-graph.mdprompts/meta.mdprompts/primary.mdprompts/variations/deep.mdprompts/variations/quick.mdtemplates/output.docx.mdtemplates/output.htmlSearches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.
"Performance is a feature — and the only one every user experiences." — Unknown
Guides web performance measurement and optimization — running Lighthouse CI in pipelines, analyzing bundle sizes, monitoring Core Web Vitals (LCP, INP, CLS), and setting performance budgets. Use when establishing performance baselines, debugging slow pages, or preventing performance regressions. [EXPLICIT]
source-map-explorer or webpack-bundle-analyzerimport() for route-level chunksweb-vitals library for real-user monitoring (RUM) in productionbuild-optimization — bundle optimization directly impacts performance metricsimage-optimization — images are the largest contributor to page weightExample invocations:
| Scenario | Handling |
|---|---|
| Empty or minimal input | Request clarification before proceeding |
| Conflicting requirements | Flag conflicts explicitly, propose resolution |
| Out-of-scope request | Redirect to appropriate skill or escalate |