Imported from joelhooks/joelclaw (skills/langfuse/SKILL.md). Install upstream with npx skills add joelhooks/joelclaw --skill langfuse. Copyright stays with the author.

Langfuse — decommissioned 2026-07-09

Name: langfuse
Author: joelhooks

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 Superseded by the agent-usage tailers; removal is a pending follow-up.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.

{ "ocm": "1", "id": "joelhooks-joelclaw-langfuse", "kind": "skill", "name": "langfuse", "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.", "publisher": "joelhooks", "version": "1.0.0", "capabilities": { "domains": [ "data_analysis", "math" ], "tags": [ "skill-md", "observability", "decommissioned", "skills-sh" ], "languages": [ "en" ] }, "quality_prior": 0.6, "examples": [ "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." ], "primary": false, "metadata": { "source": { "provider": "skills.sh", "repository": "https://github.com/joelhooks/joelclaw", "path": "skills/langfuse/SKILL.md", "ref": "HEAD", "url": "https://github.com/joelhooks/joelclaw/blob/HEAD/skills/langfuse/SKILL.md", "key": "joelhooks/joelclaw/skills/langfuse/SKILL.md" } }, "instructions": "# Langfuse — decommissioned 2026-07-09\n\nLangfuse 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).\n\n## Where usage observability lives now\n\n- **CLI:** `joelclaw usage --hours 24 [--source router|agents|all] [--model X] [--machine Y] [--json]`\n- **Query layer:** `packages/system-bus/src/lib/clickhouse-usage-query.ts` over ClickHouse `joelclaw.otel_events`\n- **Router usage:** `model_router.result` events ", "cost": { "context_tokens": 376 } }

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Langfuse — decommissioned 2026-07-09

Where usage observability lives now

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