Shadow API Discovery: Preventing Unauthorized Tool Usage

Security · updated Mon Feb 23

Hardening agents against searching for and calling undocumented endpoints.

Steps

  1. Disable 'Auto-Discovery' features in agent framework configurations.
  2. Apply strict OpenAPI schema validation for all outgoing tool calls.
  3. Implement an API Gateway with an explicit 'Allow-List' per agent ID.
  4. Mask internal URL structures in system prompts and error messages.
  5. Log and alert on agent attempts to guess '/api/v1/' or '/admin' paths.

view raw JSON →