feat: Telemetry Extension — Phase 1 (structured event capture)#47
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dgarson merged 1 commit intoobservability/mainfrom Feb 22, 2026
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Adds extensions/telemetry/ — a pure extension that captures structured telemetry events from agent sessions and writes them to JSONL. Event hooks: - session_start: via plugin lifecycle hook - session_end: via plugin lifecycle hook (duration, message count) - agent_end: via plugin lifecycle hook (success/fail, duration, errors) - model_usage: via onDiagnosticEvent (tokens, model, provider, cost) Sink: configurable file (default ~/.openclaw/telemetry/events.jsonl) and/or stdout. Non-blocking, best-effort writes. No changes to core src/ — extension-only, additive. No new root dependencies. Phase 2 will add SQLite storage, CLI commands, and agent query tools.
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…Editor (Piper) AgentScheduler: 7 seed schedules, list+calendar toggle, master/detail, run now/edit/delete TokenLedger: 10 ledger entries, cost by agent+model breakdown, 7-day bar chart ThemeEditor (Piper): preset themes, live preview panel, CSS var export; fixed TS errors Sprint total: 47 views
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ThemeEditor: now fully wired into nav + router PermissionsManager (Reed): permission matrix, 5 agents, edit mode toggle Sprint total: 48 views
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Summary
Adds
extensions/telemetry/— a pure plugin extension that captures structured telemetry events from agent sessions and writes them as JSONL.Spec:
/Users/openclaw/.openclaw/workspace/drew/TELEMETRY_SPEC.md(Phase 1 scope only)What it does
Hooks into four event sources and emits structured JSON events:
session_startsession_startlifecycle hooksession_endsession_endlifecycle hookagent_endagent_endlifecycle hookmodel_usageonDiagnosticEvent(model.usage)Sink
Events write to a configurable JSONL file (default:
~/.openclaw/telemetry/events.jsonl) and/or stdout. Non-blocking, best-effort writes — never blocks the agent runtime.Config
Files
extensions/telemetry/index.ts— Plugin entry, registers serviceextensions/telemetry/src/types.ts— Event schema + config typesextensions/telemetry/src/sink.ts— JSONL file/stdout writerextensions/telemetry/src/hooks.ts— Hook registrationsextensions/telemetry/openclaw.plugin.json— Plugin manifestextensions/telemetry/package.json— Package configextensions/telemetry/README.md— DocumentationConstraints met
src/Phase 2 (future)
SQLite storage, CLI commands (
openclaw telemetry costs/errors/sessions), agent query tools, cost estimation with pricing table, retention/cleanup.