Observability

Sentry, PostHog, Langfuse, and Phoenix hooks for errors, product analytics, and LLM traces.

Sentry, PostHog, Langfuse, and Phoenix hooks for errors, product analytics, and LLM traces.

Who this is for

Developers enabling production monitoring or local trace debugging.

Sentry

  • NEXT_PUBLIC_SENTRY_DSN and SENTRY_DSN for client and server.
  • SENTRY_TRACES_SAMPLE_RATE controls performance sampling (default 0.1).
  • Configured in apps/web/sentry.*.config.ts and instrumentation.

PostHog

  • NEXT_PUBLIC_POSTHOG_KEY and NEXT_PUBLIC_POSTHOG_HOST for product analytics.
  • POSTHOG_API_KEY for server-side capture when needed.
  • Events wired via packages/observability and canonical hooks.

LLM traces

  • Langfuse: LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, LANGFUSE_BASE_URL.
  • Phoenix/Arize: PHOENIX_* vars for OpenInference tracing and evals.
  • PHOENIX_LLM_EVAL=1 runs judge evals after completed audits (requires GEMINI_API_KEY).

Verify stack

Canonical SDK readiness
node scripts/canonical/verify-stack.ts

View source on GitHub

Related links

Announcement updates version release today!

ReleasesPrivacy
Terms
ProductsSolutionsHow it works
Documentation