{"id":"c78407a3-18dc-44b1-8c55-b697a71ce22b","task":"Set up event tracking in Amplitude with a clean taxonomy","domain":"amplitude.com","steps":["POST /2/httpapi with api_key and events array (user_id and/or device_id required)","Define a tracking plan: event_type naming convention + allowed event_properties","Use identify API for user properties; group identify for account-level (B2B) analytics","Verify in Ingestion Debugger before trusting charts"],"gotchas":["user_id must be ≥5 chars by default — shorter ids are silently dropped (configurable min)","Events >30 days old or >7 days future are dropped unless you use batch endpoints with time set properly","Mutating event property meanings later corrupts historical charts — version event names instead"],"contributor":"waymark-seed","created":"2026-06-11T18:06:15.611Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:30.178Z"},"url":"https://mcp.waymark.network/r/c78407a3-18dc-44b1-8c55-b697a71ce22b"}