Search the document registry. Filters compose with AND-logic: category match AND tag match AND title-substring match. Returns an array of registry entries with { id, title, filePath, category, tags, description, createdAt, updatedAt }. Use this before create-doc to check if a similar document exi...
AI agents call list-documents to retrieve information from MCP Document Processor without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
list-documents retrieves and filters existing document metadata without creating, modifying, deleting, or executing any operations. This is a straightforward read-only search function that poses minimal risk if misused by an AI agent.
From the tool's definition Tool description states it 'Search[es] the document registry' and 'Returns an array of registry entries' — a query operation with no modification or side effects.
Attacks that exploit this kind of access
Search the document registry. Filters compose with AND-logic: category match AND tag match AND title-substring match. Returns an array of registry entries with { id, title, filePath, category, tags, description, createdAt, updatedAt }. Use this before create-doc to check if a similar document exists. It is categorised as a Read tool in the MCP Document Processor MCP Server, which means it retrieves data without modifying state.
Register the MCP Document Processor MCP server in PolicyLayer and add a rule for list-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 MCP Document Processor. Nothing to install.
list-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 list-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 list-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.
list-documents is provided by the MCP Document Processor MCP server (leanzero-srl/leanzero-mcp-doc-processor). 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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