列出所有知识库
AI agents call list_knowledge_bases to retrieve information from RAG MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays metadata about available knowledge bases. It has no side effects—it does not create, modify, delete, or execute operations. The blast radius of misuse is minimal; an unauthorized listing of knowledge bases poses low risk compared to write or destructive operations. Confidence is high because the name and function are unambiguous.
From the tool's definition Tool name 'list_knowledge_bases' and description '列出所有知识库' (list all knowledge bases) indicate a retrieval operation that queries existing data without modification or deletion.
Attacks that exploit this kind of access
列出所有知识库. It is categorised as a Read tool in the RAG MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RAG MCP Server MCP server in PolicyLayer and add a rule for list_knowledge_bases: 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 RAG MCP Server. Nothing to install.
list_knowledge_bases 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 list_knowledge_bases 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 list_knowledge_bases. 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.
list_knowledge_bases is provided by the RAG MCP Server MCP server (sglwsjxh/rag-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.
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