| name | langfuse |
| displayName | Langfuse (decommissioned) |
| description | Langfuse was decommissioned on 2026-07-09 — do not add Langfuse tracing or query Langfuse for usage/cost. Use this skill only to learn where usage observability lives now. Token usage and cost questions route to `joelclaw usage` and ClickHouse otel_events. |
| version | 1.0.0 |
| author | joel |
| tags | ["observability","decommissioned"] |
Langfuse — decommissioned 2026-07-09
Langfuse is gone. It was never migrated to Flagg, its traces API 429'd/422'd under real query load (2026-07 backup/self-healing token-drain post-mortem), and every code path was removed from this repo (grep -ri langfuse packages/ apps/ returns zero).
Where usage observability lives now
- CLI:
joelclaw usage --hours 24 [--source router|agents|all] [--model X] [--machine Y] [--json]
- Query layer:
packages/system-bus/src/lib/clickhouse-usage-query.ts over ClickHouse joelclaw.otel_events
- Router usage:
model_router.result events carry a full usage object in metadata_json (fixed by passing --mode json to pi in inference.ts)
- Agent sessions: passive tailers (
packages/system-bus/src/lib/agent-usage/) parse Pi/Claude Code/Codex transcripts into agent_usage.turn events every 15 min (system/agent-usage.scan)
- Pricing:
packages/system-bus/src/lib/model-pricing.ts — provider-reported cost wins; OpenRouter public pricing is the benchmark fallback (pricing data only, never an inference path)
- Daily report:
daily-token-usage-report.ts reads ClickHouse directly
Residue
pi/extensions/langfuse-cost still exists but degrades to disabled telemetry (fails soft, by design). Superseded by the agent-usage tailers; removal is a pending follow-up.LANGFUSE_* secrets in the secrets store are unused and can be revoked.
Project receipts: .brain/projects/agent-usage-observability-2026-07-09.svx.
