Recent research showed agent systems can leak credentials and escape intended sandboxes, reinforcing the need for zero-trust tool boundaries.
Risk Pattern
Agent systems can escape intended boundaries when tool permissions are too broad and credential handling is weak. Treat every external tool as a potential exfiltration path.
Mitigations
- Scope tool access to minimum required surfaces
- Rotate and inject credentials at runtime; never hardcode secrets
- Add behavioral contract tests for agent actions
Architecture Guidance
Separate agent control planes from data planes, log all tool calls, and set automated alerts on anomalous access patterns.