Continuation of the OTel trace export arc started in #341 (PR 1).
PR 1 shipped (#341)
atomic_agents.tracing module — off-by-default seam, [otel] extra, OTLP/HTTP exporter.agent.call() parent span (atomic_agents.call) with cost/token/outcome attributes, ended on all exit paths via idempotent non-throwing finalizer.- DRAFT spec/39 (253 lines, 9 MUSTs).
Deferred to this PR (PR 2 of the arc)
- Child spans.
gen_ai.client.chat (LLM), tool, helper, delegate spans — constants are already declared in tracing.py (SPAN_LLM_CALL, SPAN_TOOL_CALL, SPAN_HELPER_CALL, SPAN_DELEGATE) and the gen_ai.* semconv attributes are reserved, but the spans are not yet emitted. Wire them as children of the parent atomic_agents.call span, carrying parent_run_id parity with the JSONL audit rollup (Principle 5).
- spec/39 LOCK. Run the LOCK ceremony (drift audit per [[feedback_lock_ceremony_drift_gate]]) once child spans match the spec and tests pass — flip DRAFT → LOCKED.
- P2 polish carried from PR 1's converged round-4 review — non-blocking style/doc-completeness items (ruff import-ordering noqa hygiene in
tracing.py; spec/39 doc-completeness passes). Fold into the LOCK drift audit.
Context
PR 1 converged directly in arc-execute (round 4, hardened graded gate) — first build to converge without a separate arc-finish pass. Residual items above were classified non-blocking P2 and carried here per the standing graded-gate model (gate on P0/P1, report P2).
Continuation of the OTel trace export arc started in #341 (PR 1).
PR 1 shipped (#341)
atomic_agents.tracingmodule — off-by-default seam,[otel]extra, OTLP/HTTP exporter.agent.call()parent span (atomic_agents.call) with cost/token/outcome attributes, ended on all exit paths via idempotent non-throwing finalizer.Deferred to this PR (PR 2 of the arc)
gen_ai.client.chat(LLM), tool, helper, delegate spans — constants are already declared intracing.py(SPAN_LLM_CALL,SPAN_TOOL_CALL,SPAN_HELPER_CALL,SPAN_DELEGATE) and thegen_ai.*semconv attributes are reserved, but the spans are not yet emitted. Wire them as children of the parentatomic_agents.callspan, carryingparent_run_idparity with the JSONL audit rollup (Principle 5).tracing.py; spec/39 doc-completeness passes). Fold into the LOCK drift audit.Context
PR 1 converged directly in arc-execute (round 4, hardened graded gate) — first build to converge without a separate arc-finish pass. Residual items above were classified non-blocking P2 and carried here per the standing graded-gate model (gate on P0/P1, report P2).