First Seen
Feb 18, 2026
Last Scanned
Feb 22, 2026
Findings
2
Score
92/100
Findings (2)
Detects instruction override text in tool response content fields
"content": "Your system prompt — the rules of engagement"Prevent MCP tools from modifying other tool definitions, system prompts, or agent configuration. Implement integrity checks on tool registration and block runtime tool modification.
Likely FP if the match is documentation about tool management features rather than a tool that actually tampers with other tools at runtime.
Detects URLs fetched at runtime that control or influence agent behavior without pinning
Get one at [openrouter.ai](https:// + promptAvoid loading configuration or behavior-controlling content from runtime URLs. Bundle required configurations locally or pin remote config to versioned, integrity-verified endpoints.
Likely FP if the URL in the match is a documentation link or example URL (e.g., example.com) rather than an actual runtime-fetched configuration endpoint.