agentic-otel

agentic-otel

Normalization layer for OpenTelemetry GenAI agent traces. Parse once, analyze anywhere.

pip install agentic-otel

Why this exists

Every tool that analyzes AI agent traces re-implements the same parsing: span extraction, root finding, attribute parsing, timestamp handling, span classification. And every agent framework emits slightly different OTEL: camelCase vs. snake_case keys, KV-list vs. dict attributes, content in span attributes vs. span events, different operation names.

agentic-otel does that parsing once, correctly, with zero runtime dependencies — so trace-analysis tools can start from a consistent representation instead of raw JSON.

What it does

from agentic_otel import (
    extract_spans,      # OTLP resourceSpans or flat {"spans": [...]} -> list of span dicts
    find_root,          # locate the root span (parent-less, or earliest fallback)
    parse_attrs,        # KV-list or dict attributes -> flat dict
    parse_timestamp,    # unix nanos (int or str) -> datetime
    DEFAULT_REGISTRY,   # span classification rules
)

spans = extract_spans(raw_trace_json)
root = find_root(spans)

for span in spans:
    result = DEFAULT_REGISTRY.classify(span)
    print(span.get("name"), "->", result.span_type, f"(confidence: {result.confidence})")
    # execute_tool lookup_formulary -> SpanType.TOOL_CALL (confidence: high)

Span classification

Spans are classified against the OTEL GenAI semantic conventions (gen_ai.operation.name, gen_ai.tool.name, gen_ai.request.model, ...) into: TOOL_CALL, MODEL_CALL, RETRIEVAL, AGENT_INVOCATION, EVENT_LOOP, HUMAN_REVIEW, or CUSTOM — each with a confidence score and the reason for the classification.

Framework detection

Traces are fingerprinted to the framework that produced them — Strands Agents, LangChain/LangGraph, PydanticAI, Claude Agent SDK — so downstream tools can handle framework-specific quirks (e.g., where message content lives) without their own detection logic.

Extensibility

Classification rules live in a SemanticConventionRegistry. New frameworks, operation names, or attribute conventions are added as registry entries, not code changes:

from agentic_otel import SemanticConventionRegistry

registry = SemanticConventionRegistry()
registry.register_tool_op("my_framework.tool_exec")
result = registry.classify(span)
framework = registry.detect_framework(raw_trace_json)

Normalized trace model

For tools that want a fully structured representation, OTELNormalizer produces a NormalizedTrace — typed NormalizedSpan entries with token usage, data source references, resolved parent/child relationships, and extracted input/output text — from a single parsing pass:

from agentic_otel import OTELNormalizer

trace = OTELNormalizer().normalize(raw_trace_json)

Format tolerance

Handles, without configuration:

• OTLP resourceSpans exports and flat {"spans": [...]} dumps
• Attribute lists ([{"key": ..., "value": {"stringValue": ...}}]) and flat dicts
• camelCase and snake_case span field names (traceId / trace_id)
• Message content in span attributes or span events
• Nanosecond timestamps as integers or strings

Support and stability

This is a community open source project, not an AWS service or product.

• Support: community only, via GitHub issues. It is not covered by AWS Support plans, and there is no SLA.
• Stability: pre-1.0 and published with the Development Status :: 4 - Beta classifier. The API may change between minor versions; pin a version if you depend on it.
• Warranty: provided "AS IS", without warranties or conditions of any kind, as stated in the Apache License 2.0 (Sections 7 and 8).

You are responsible for evaluating whether it fits your own compliance and operational requirements before relying on it.

License

Apache-2.0