first commit

app/observability/telemetry_observer.py

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+from __future__ import annotations
+
+"""Observer adapter that emits IC/NOC/GRL through framework Telemetry only.
+
+This avoids a second Langfuse root trace created by AgentObserver ->
+AnalyticsPublisher while preserving the events inside the active request span.
+"""
+
+from datetime import datetime, timezone
+from typing import Any
+
+
+def _normalize_ic_code(code: str) -> str:
+    code = str(code or "UNKNOWN").strip()
+    return code if code.startswith(("IC.", "AGA.", "NOC.", "GRL.")) else f"IC.{code}"
+
+
+def _normalize_noc_code(code: str) -> str:
+    code = str(code or "UNKNOWN").strip()
+    return code if code.startswith("NOC.") else f"NOC.{code}"
+
+
+def _normalize_grl_code(code: str) -> str:
+    code = str(code or "UNKNOWN").strip()
+    return code if code.startswith("GRL.") else f"GRL.{code}"
+
+
+def _kind_for(event_type: str) -> str:
+    if event_type.startswith(("IC.", "AGA.")):
+        return "ic"
+    if event_type.startswith("NOC."):
+        return "noc"
+    if event_type.startswith("GRL."):
+        return "grl"
+    return "event"
+
+
+class TelemetryBackedAgentObserver:
+    """Drop-in subset of AgentObserver backed by Telemetry.event.
+
+    Do not publish through AnalyticsPublisher here. Analytics publishing may be
+    configured with a Langfuse provider, and that path creates an extra root
+    trace for business events such as IC.AGENT_COMPLETED/NOC.006. Telemetry.event
+    uses the active span/trace context, so these events appear inside the single
+    request trace.
+    """
+
+    def __init__(self, telemetry: Any, *, source: str = "agent_framework") -> None:
+        self.telemetry = telemetry
+        self.source = source
+
+    async def emit(
+        self,
+        event_type: str,
+        payload: dict[str, Any] | None = None,
+        *,
+        metadata: dict[str, Any] | None = None,
+        source: str | None = None,
+    ) -> dict[str, Any]:
+        body = dict(payload or {})
+        meta = dict(metadata or {})
+        body.setdefault("tag", event_type)
+        event = {
+            "eventType": event_type,
+            "source": source or self.source,
+            "eventDate": datetime.now(timezone.utc).isoformat(),
+            "body": body,
+            "metadata": meta,
+        }
+        try:
+            await self.telemetry.event(event_type, event, kind=_kind_for(event_type))
+        except TypeError:
+            # Compatibility with older Telemetry.event signatures.
+            await self.telemetry.event(event_type, event)
+        return event
+
+    async def emit_ic(self, code: str, payload: dict[str, Any] | None = None, **metadata: Any) -> dict[str, Any]:
+        return await self.emit(_normalize_ic_code(code), payload, metadata={**metadata, "ic": True})
+
+    async def emit_noc(self, code: str, payload: dict[str, Any] | None = None, **metadata: Any) -> dict[str, Any]:
+        return await self.emit(_normalize_noc_code(code), payload, metadata={**metadata, "noc": True})
+
+    async def emit_grl(self, code: str, payload: dict[str, Any] | None = None, **metadata: Any) -> dict[str, Any]:
+        return await self.emit(_normalize_grl_code(code), payload, metadata={**metadata, "grl": True})