獲取指定 schema 的完整定義，自動解析所有 $ref 引用
AI agents call get_schema to retrieve information from Swagger Json without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and processes existing OpenAPI/Swagger schema definitions to display their structure and references. It performs no modifications, deletions, or side effects on data. It is purely informational—accessing API documentation metadata. The automatic reference resolution is a read-time convenience feature, not a mutation. This aligns with the Read category (retrieves or queries data; no side effects).
From the tool's definition Tool name 'get_schema' and description 'retrieve complete definition of specified schema' with automatic resolution of references. The verb 'get' and 'retrieve' indicate data retrieval without modification.
Attacks that exploit this kind of access
獲取指定 schema 的完整定義，自動解析所有 $ref 引用. It is categorised as a Read tool in the Swagger Json MCP Server, which means it retrieves data without modifying state.
Register the Swagger Json MCP server in PolicyLayer and add a rule for get_schema: 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 Swagger Json. Nothing to install.
get_schema 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_schema 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_schema. 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_schema is provided by the Swagger Json MCP server (llm-mcp-servers/swagger-json-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 →