signals-scout-web-vitals

Signals scout for Core Web Vitals ($web_vitals). Watches each page's p75 LCP / INP / CLS / FCP against Google's thresholds and its own history — poor-band pages, band crossings, sharp regressions — and dates each regression against deploys and flag rollouts.

Compatibility

Designed for the PostHog Signals agent in a Claude sandbox with PostHog MCP scopes: read-only analytics plus signal_scout_internal:write (for scratchpad) + signal_scout_report:write (for emit-report/edit-report, granted because this scout authors reports directly via the report channel). Assumes the signals-scout MCP family and standard analytics tools (execute-sql against the events table, read-data-schema, advanced-activity-logs-list, and the inbox tools in the MCP tools section).