agentforge-otel 0.4.0

OpenTelemetry tracing + metrics emitter for AgentForge

agentforge-otel

OpenTelemetry tracing for AgentForge (feat-009).

The OTel API ships in agentforge-core — the framework emits spans unconditionally. Without this package, those calls degrade to NonRecordingSpan (near-zero cost). Installing agentforge-otel wires up the SDK, an OTLP exporter, and a sampler so the spans actually reach a collector.

Quick start

from agentforge import Agent
from agentforge_otel import OpenTelemetryHook

otel = OpenTelemetryHook(
    endpoint="http://otel-collector:4317",
    service_name="my-agent",
    sample_rate=1.0,
)

agent = Agent(
    model="bedrock:...",
    tools=[...],
    on_step=otel,
    on_finish=otel,
)

Constructing the hook installs the SDK provider once (idempotent). The framework's existing span emission then produces a tree per run:

span: agent.run
└── span: strategy.iteration
    ├── span: llm.call
    ├── span: tool.<name>
    └── span: evaluator.<name>

Span attributes carry agentforge.run_id, cost, token counts, finish reason, and step count — same correlation key the RunIdFilter puts on every log line.

Multiple backends

Run OTel alongside any other observer:

agent = Agent(
    model="...",
    on_step=[otel, my_statsd_hook],
    on_finish=[otel, persist_to_db],
)

Hooks fire in registration order; one hook's exception doesn't affect siblings (the framework logs WARN via agentforge.observability and keeps going).

Vendor compatibility

OTel is the wire format; any collector that ingests OTLP works: Datadog, Honeycomb, Jaeger, Grafana Tempo, SigNoz, New Relic. Point the endpoint at your collector's gRPC port (4317 by default).