retrieveKnowledge

Retrieve relevant knowledge chunks from the vector database based on semantic similarity

SERVERClaude MCP Server Ecosystem SOURCEcoder-rl/claude_mcpserver_dev1

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/coder-rl-claude-mcpserver-dev1/retrieveknowledge.md

WHAT IT DOES

What retrieveKnowledge does on Claude MCP Server Ecosystem

AI agents call retrieveKnowledge to retrieve information from Claude MCP Server Ecosystem without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why retrieveKnowledge is rated Low

This tool performs a semantic search/query against a vector database to fetch matching knowledge chunks. No data is created, modified, deleted, or executed. The operation has no side effects and no blast radius if misused by an AI agent—it can only return data already present in the knowledge base. This is a classic Read category tool.

From the tool's definition Tool description states 'Retrieve relevant knowledge chunks from the vector database based on semantic similarity' — the verb 'retrieve' and action of querying a database with no modification capability indicate a read-only operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs retrieveKnowledge safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Claude MCP Server Ecosystem, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For retrieveKnowledge, this is the rule to start with:

retrieveKnowledge Allowed

retrieveKnowledge is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "retrieveKnowledge": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Claude MCP Server Ecosystem, apply this rule, and every retrieveKnowledge call is checked against it from then on.

FAQ

Questions about retrieveKnowledge

What does the retrieveKnowledge tool do? +

Retrieve relevant knowledge chunks from the vector database based on semantic similarity. It is categorised as a Read tool in the Claude MCP Server Ecosystem MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on retrieveKnowledge? +

Register the Claude MCP Server Ecosystem MCP server in PolicyLayer and add a rule for retrieveKnowledge: 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 Claude MCP Server Ecosystem. Nothing to install.

What risk level is retrieveKnowledge? +

retrieveKnowledge is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit retrieveKnowledge? +

Yes. Add a rate_limit block to the retrieveKnowledge 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.

How do I block retrieveKnowledge completely? +

Set action: deny in the PolicyLayer policy for retrieveKnowledge. 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.

What MCP server provides retrieveKnowledge? +

retrieveKnowledge is provided by the Claude MCP Server Ecosystem MCP server (coder-rl/claude_mcpserver_dev1). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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