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046f845ddf
Adds opt-in distributed tracing via OpenTelemetry for observability into
FastMCP server and client operations.
Server spans are created for tool calls, resource reads, and prompt
renders with attributes like component key, component type, provider
type, session ID, and auth context. Client spans wrap outgoing calls
with trace context propagation via W3C headers in request meta.
Components provide their own span attributes through a `get_span_attributes()`
method that subclasses override - this lets LocalProvider, FastMCPProvider,
and ProxyProvider each include relevant context (original names, backend URIs).
To enable: configure an OpenTelemetry SDK with a TracerProvider before
importing fastmcp. Traces export to any OTLP-compatible backend.
Closes ENG-2813
🤖 Generated with Claude Code
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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| .. | ||
| auth | ||
| http | ||
| middleware | ||
| providers | ||
| sampling | ||
| tasks | ||
| telemetry | ||
| __init__.py | ||
| test_app_state.py | ||
| test_auth_integration.py | ||
| test_context.py | ||
| test_dependencies.py | ||
| test_event_store.py | ||
| test_file_server.py | ||
| test_icons.py | ||
| test_input_validation.py | ||
| test_log_level.py | ||
| test_logging.py | ||
| test_mount.py | ||
| test_providers.py | ||
| test_run_server.py | ||
| test_server.py | ||
| test_server_docket.py | ||
| test_server_lifespan.py | ||
| test_streamable_http_no_redirect.py | ||
| test_tool_annotations.py | ||
| test_tool_transformation.py | ||