AI agents call retrieve_from_local_files to retrieve information from LuzzyTool without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs semantic or keyword-based retrieval from local text files and returns matching segments. It queries existing data without creating, modifying, deleting, or executing anything. The retrieval nature with zero side effects makes it a Read category tool with low severity risk, as misuse would only expose information already stored locally.
From the tool's definition Tool description indicates 'keyword retrieval in text files in local directory, returns relevant snippets' (关键词检索，返回相关片段).
Attacks that exploit this kind of access
【必须调用】在本地目录下的文本文件中进行关键词检索，返回相关片段。. It is categorised as a Read tool in the LuzzyTool MCP Server, which means it retrieves data without modifying state.
Register the LuzzyTool MCP server in PolicyLayer and add a rule for retrieve_from_local_files: 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 LuzzyTool. Nothing to install.
retrieve_from_local_files 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 retrieve_from_local_files 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 retrieve_from_local_files. 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.
retrieve_from_local_files is provided by the LuzzyTool MCP server (luzzymeow/luzzytool). 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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