Scan for new documents in the configured directory
AI agents call scan_documents to retrieve information from LightRAG 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 or queries information about documents present in a directory. It has no side effects, does not create, modify, or delete data, and does not execute code or trigger external operations. It is a passive discovery/listing operation typical of the Read category.
From the tool's definition Tool name and description: 'Scan for new documents in the configured directory' — uses the verb 'scan' which is a read-only operation that discovers or lists documents without modifying them.
Attacks that exploit this kind of access
Scan for new documents in the configured directory. It is categorised as a Read tool in the LightRAG MCP Server MCP Server, which means it retrieves data without modifying state.
Register the LightRAG MCP Server MCP server in PolicyLayer and add a rule for scan_documents: 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 LightRAG MCP Server. Nothing to install.
scan_documents 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 scan_documents 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 scan_documents. 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.
scan_documents is provided by the LightRAG MCP Server MCP server (lalitsuryan/lightragmcp). 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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