Security

Diagnose tool-calling failures caused by schemas, authorization, validation, runtime errors, and ambiguous tool results.

A practical path for diagnosing S3 AccessDenied errors across identity, bucket policy, encryption, and ownership controls.

Diagnose common EC2 connectivity failures by separating network, identity, host, and service-layer causes.

Diagnose AWS authorization failures using the principal, action, resource, and policy evaluation path.

A design case for tool-using AI agents with bounded execution, authorization, observability, and safe failure handling.

A secure design case for browser-to-object-storage uploads with authorization, validation, isolation, and asynchronous processing.