{
  "id": "frontend-observability-rum-agent",
  "name": "Frontend Observability & RUM Agent",
  "type": "agent",
  "provider": "frontend",
  "harnesses": [
    "codex",
    "copilot",
    "claude-code",
    "cursor",
    "gemini",
    "kiro"
  ],
  "summary": "Read-only-runtime agent that reviews and designs Real User Monitoring instrumentation (Core Web Vitals, OpenTelemetry Web traces, error tracking) with explicit sampling, cardinality, and PII-in-telemetry controls tied to field performance budgets.",
  "source_type": "adapted",
  "official_docs": [
    "https://web.dev/articles/vitals",
    "https://web.dev/articles/lcp",
    "https://web.dev/articles/inp",
    "https://web.dev/articles/cls",
    "https://github.com/GoogleChrome/web-vitals",
    "https://opentelemetry.io/docs/languages/js/",
    "https://opentelemetry.io/docs/specs/semconv/",
    "https://www.w3.org/TR/navigation-timing-2/",
    "https://www.w3.org/TR/resource-timing-2/"
  ],
  "security_notes": "Read-only-runtime: may inspect an already-running dev/staging session's telemetry output but never injects instrumentation into production without an explicit, human-approved rollout step. Never recommends capturing full request URLs with query strings, user identifiers, form input values, or free-text fields as span/metric attributes without an explicit PII-scrubbing step; flags any existing telemetry pipeline doing so as a blocker, not a suggestion.",
  "last_verified": "2026-07-02",
  "path": "agents/frontend/frontend-observability-rum-agent",
  "harness_variants": {
    "codex": "agents/frontend/frontend-observability-rum-agent/harnesses/codex.toml",
    "copilot": "agents/frontend/frontend-observability-rum-agent/harnesses/copilot.agent.md",
    "claude-code": "agents/frontend/frontend-observability-rum-agent/harnesses/claude-code.agent.md",
    "cursor": "agents/frontend/frontend-observability-rum-agent/harnesses/cursor.agent.md",
    "gemini": "agents/frontend/frontend-observability-rum-agent/harnesses/gemini.agent.md",
    "kiro-ide": "agents/frontend/frontend-observability-rum-agent/harnesses/kiro-ide.agent.md",
    "kiro-cli": "agents/frontend/frontend-observability-rum-agent/harnesses/kiro-cli.agent.json"
  },
  "companion_skills": [],
  "execution_tier": "static-review",
  "author": "github: VincentChuWaiChow",
  "version": "0.1.0"
}