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