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@adastracomputing/aer-emit

v0.1.0

Published

Shared best-effort AER emit core: an EventSink that lazily opens an AER session, batches events and completes on close. Fail-open, never throws. Used by aer-mcp-recorder and aer-hooks for consistent behavior.

Downloads

98

Vulnerabilities

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  • 0Medium
  • 0Low

Links

Git

Maintainers

adastra-computingadastra-computing

Keywords

aeragentobservabilityevent-sinkinstrumentation

Readme

@adastracomputing/aer-emit

The shared best-effort emit core for AER producers. This is the one place that knows how to open an AER session, batch events to the ingest endpoint and complete the session on close. Both @adastracomputing/aer-mcp-recorder and @adastracomputing/aer-hooks build on it for consistent behavior between them.

What it gives you

  • EventSink: emit(eventType, payload) and close().
  • NullSink: a no-op sink used when AER is not configured.
  • createHttpSink(opts): opens a session lazily on the first emit, batches events and completes the session on close.
  • sinkFromEnv(env?, overrides?): builds a sink from the standard AER_* env vars, or a NullSink when unconfigured.
  • resolvePrincipal(id, kind, display): normalizes the on-whose-behalf principal (id capped at 128, display at 64, kind in user|service|ci defaulting to user).

Non-negotiable properties

Every network call is best-effort. A failed session open, event POST or complete is swallowed, logged to stderr at most once and never thrown. Emitting is never in the critical path of the producer's real work. An idle producer that never emits never touches the network.

Environment

AER_API_KEY, AER_TENANT_ID, AER_AGENT_ID are required for a live sink; AER_ENV_ID, AER_BASE_URL, AER_AGENT_VERSION, AER_PRINCIPAL_ID, AER_PRINCIPAL_KIND and AER_PRINCIPAL_DISPLAY are optional. Miss any of the three required values and sinkFromEnv returns a NullSink.

License

Apache-2.0