MCP 도구 정의를 JSON 형식으로 제공합니다.
AI agents call get_tool_definitions to retrieve information from Persona MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and returns definitions/metadata about MCP tools. This is a read-only information retrieval operation with no capability to modify, delete, execute code, or cause financial impact. The blast radius of misuse is minimal — an attacker gains knowledge of available tool signatures but cannot directly exploit them through this tool alone.
From the tool's definition Tool name 'get_tool_definitions' and description states it provides 'MCP tool definitions in JSON format' — this is a retrieval operation that returns metadata about available tools with no side effects or data modifications.
Attacks that exploit this kind of access
MCP 도구 정의를 JSON 형식으로 제공합니다. It is categorised as a Read tool in the Persona MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Persona MCP Server MCP server in PolicyLayer and add a rule for get_tool_definitions: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Persona MCP Server. Nothing to install.
get_tool_definitions is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_tool_definitions rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_tool_definitions. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_tool_definitions is provided by the Persona MCP Server MCP server (seonaru/persona-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →