{"id":"agent-error-observability","slug":"agent-error-observability","name":"Application error/trace monitoring for agent backends","shortName":"Application error/trace monitoring for agent backends","problemStatement":"Need exception tracking, performance spans, and alerts for the services hosting agents — separate from LLM request tracing.","whenNotTopPick":"LLM-only tracing/evals — Langfuse/Braintrust/Helicone. Full enterprise APM already Datadog — stay.","categoryIds":["cat-observability"],"depotPickProviderId":"sentry","depotPickRationale":"DX + maturity for app errors. Sentry wins; keep LLM tracers separate.","runnersUpIds":["honeycomb","posthog"],"weights":{"capabilityFit":0.25,"pricePerformance":0.18,"latencyReliability":0.15,"developerDx":0.15,"privacyPosture":0.1,"lockInRisk":0.07,"maturity":0.1},"methodologyNotes":"DX + maturity for app errors. Sentry wins; keep LLM tracers separate.","tags":["agent"],"depth":{"whenNotToUse":{"text":"LLM-only tracing/evals — Langfuse/Braintrust/Helicone. Full enterprise APM already Datadog — stay.","source":"editorial `whenNotTopPick` (data/jtbds.json)"},"whenNotToUseReason":null,"runnerUp":{"providerId":"honeycomb","name":"Honeycomb","overallForJob":8.13,"pickOverallForJob":8.56,"beatsPickOn":["latencyReliability"],"source":"first resolvable entry of the job's editorially ranked `runnersUpIds`; scores are stored job-weighted scores"},"runnerUpReason":null,"lockIn":{"pickLockInRisk":4.2,"runnerUpLockInRisk":4.5,"scale":"0–10 stored curated estimate; higher = more lock-in (worse)","pickExitSignals":[],"runnerUpExitSignals":[],"pickNotes":[],"selfHostFallback":[{"id":"signoz","name":"SigNoz","license":"MIT Expat outside ee/","sourceUrl":"https://raw.githubusercontent.com/SigNoz/signoz/main/LICENSE"}],"migration":"The pick has lower stored lock-in risk than runner-up Honeycomb (4.2 vs 4.5). Self-host fallback listed for this job: SigNoz.","migrationReason":null,"derivedFrom":"stored lockInRisk scores, provider tags (oss, self-host, openai-compat, open-models), free rows that list this job, and verbatim provider notes. No migration guide was invented."}},"freshness":{"pick":{"score":{"asOf":"2026-09-14","ageDays":43,"stale":true,"staleAfterDays":30,"reason":null},"lastReviewed":{"asOf":"2026-09-14","ageDays":43,"stale":true,"staleAfterDays":30,"reason":null},"sourceCheck":{"checkedAt":"2026-10-27","sourceUrls":2,"sourcesReachable":2,"pricingRows":12,"pricingRowsReconfirmed":6,"note":"A source re-check confirms the page is reachable and, for pricing rows, that the stored amount and SKU name appear on it. It does not re-derive or change the score.","reason":null}}},"depotPick":{"id":"sentry","slug":"sentry","name":"Sentry","tagline":"Depot pick for agent-error-observability (exceptions/traces in the app hosting the agent). Keep…","overall":8.56},"runnersUp":[{"id":"honeycomb","slug":"honeycomb","name":"Honeycomb","tagline":"When your agent outage is an infra mystery, Honeycomb shines. Still pair with an LLM-native tracer for…","overall":8.13},{"id":"posthog","slug":"posthog","name":"PostHog","tagline":"Flags/analytics peer. Depot oss-feature-flags pick stays GrowthBook; LaunchDarkly for AgentControl; PostHog…","overall":8.41}]}