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Trust, Governance & Security · 09.05

Observability: Live Reasoning, Token Pills & OpenTelemetry

Every run streams reasoning, a live activity tail back-fills a surface opened mid-run, and a realtime token pill shows spend as it accrues.

Observability

Nothing has to be inferred after the fact

A run's reasoning streams live over the same realtime rooms every other cross-cutting system uses — open a run's detail view mid-flight and an activity tail immediately back-fills what already happened, rather than only showing events from the moment you opened the tab forward. A token pill accrues spend in realtime as a run actually consumes it, so cost is visible while a run is happening, not just totaled up afterward in a report.

OpenTelemetry is opt-in, and genuinely absent when unset

Setting AGENTIS_OTEL_ENDPOINT turns on real OTEL export; leaving it unset falls back to a no-op tracer rather than silently buffering spans nobody's collecting. That matters for the "zero external services to start" promise — observability tooling is something you opt into when you need it, not baseline overhead the slim install pays for whether you use it or not.

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