Debugging

Build causal evidence for the reported failure. Match the request: diagnosis ends with findings and remaining uncertainty; a fix request includes the related repair and verification. Use project conventions and relevant domain or architecture documentation. Redact secrets from shared commands, outputs, and captures; pass credentials through the environment.

Anchor

Identify the expected behavior, actual symptom, affected scenario, and relevant artifact/version, configuration, and state. Distinguish observations from hypotheses. Reuse prior evidence when its identity and conditions still match.

Keep the original scenario as the acceptance target. A nearby error, mock-only failure, or different instance is not a substitute for the reported symptom.

Observe