fillout-forms-automation

Fail

Audited by Gen Agent Trust Hub on Feb 16, 2026

Risk Level: HIGHEXTERNAL_DOWNLOADSPROMPT_INJECTIONCOMMAND_EXECUTION
Full Analysis
  • Remote Service Dependency (HIGH): The skill requires connecting to an external MCP server at https://rube.app/mcp. This domain is not among the trusted sources. This endpoint provides the tool logic, schemas, and execution plans, delegating control to a third party.
  • Indirect Prompt Injection (HIGH):
  • Ingestion points: RUBE_SEARCH_TOOLS retrieves dynamic tool definitions, schemas, and "recommended execution plans" from the remote server.
  • Boundary markers: None. The instructions explicitly tell the agent to follow the schemas and plans returned by the remote server.
  • Capability inventory: RUBE_MULTI_EXECUTE_TOOL and RUBE_REMOTE_WORKBENCH provide the ability to modify data and perform actions within the Fillout forms ecosystem.
  • Sanitization: No validation or sanitization of the remote-provided schemas or execution plans is performed before they are processed by the agent.
  • Dynamic Execution Pattern (MEDIUM): The skill uses RUBE_REMOTE_WORKBENCH to execute bulk operations. This pattern masks the specific actions being performed, making it difficult for the user to audit the agent's behavior at runtime.
Recommendations
  • AI detected serious security threats
Audit Metadata
Risk Level
HIGH
Analyzed
Feb 16, 2026, 12:49 PM