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name: openwebf-host-performance-metrics description: Instrument and diagnose WebF performance in Flutter (FP/FCP/LCP, dumpLoadingState, loading-state events). Use when the user mentions FP/FCP/LCP, dumpLoadingState, first render slow, LCP verification, or performance monitoring. allowed-tools: Read, Grep, Glob, Bash, Edit, Write, mcp__openwebf__project_profile, mcp__openwebf__docs_search, mcp__openwebf__docs_get_section, mcp__openwebf__templates_get, mcp__openwebf__templates_render

OpenWebF Host: Performance Metrics & Diagnosis

Instructions

1. Establish measurement: capture FP/FCP/LCP and key lifecycle timings.
2. Use MCP docs for the official performance monitoring APIs and guidance.
3. Use dumpLoadingState (or equivalent) to diagnose where time is spent.
4. Offer scaffolding templates when useful:
   • perf/loading-state-events
   • perf/loadingstate-dump
   • perf/lcp-content-verification

More:

• reference.md
• doc-queries.md
• examples.md