AIKIDO-2026-796700

TL;DR

Pydantic AI's OpenTelemetry instrumentation lets InstrumentationSettings(include_content=False) exclude message content from exported telemetry, but exception events, the span error status description, and the model_request_parameters attribute keep exporting that content regardless of the setting. A tool retry, a chained exception after exhausted retries, or a model, embedding, or image-generation provider error can quote prompts, tool arguments, or the provider's error body, and the request attribute serializes the agent's full instructions and prompted-output template. The fix withholds the exception message and stack trace, the status description, and the instruction and template content when include_content is false, keeping only structural information.