exploring-mcp-tool-usage

Pass

Audited by Gen Agent Trust Hub on Sep 26, 2026

Risk Level: SAFEINDIRECT_PROMPT_INJECTION
Full Analysis
  • [INDIRECT_PROMPT_INJECTION]: The skill handles untrusted external data retrieved from Model Context Protocol (MCP) event logs, which constitutes an indirect prompt injection surface.
  • Ingestion points: The skill retrieves agent intents and error messages from $mcp_tool_call and $exception events using tools such as posthog:query-mcp-tool-sample-intents and posthog:query-mcp-tool-failures.
  • Boundary markers: The instructions do not define specific delimiters or instructions to ignore embedded commands within the retrieved log strings.
  • Capability inventory: The skill has access to PostHog analytics tools and the posthog:execute-sql capability.
  • Sanitization: No explicit sanitization or filtering logic is described for the retrieved intent or error strings.
Audit Metadata
Risk Level
SAFE
Analyzed
Sep 26, 2026, 06:17 AM