Search for matching files and folders using glob patterns. Results always include path and type fields. For simple directory listing, use pattern
AI agents call searchFilesAndFolders to retrieve information from BetterMCPFileServer without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about files and folders matching glob patterns. It returns metadata (path, type) without creating, modifying, deleting, or executing anything. This is a read-only data retrieval operation with no side effects. The low severity reflects that misuse would only expose filesystem structure/metadata, not enable destructive or financial harm.
From the tool's definition Tool description states it "Search[es] for matching files and folders" with "Results always include path and type fields." The function is explicitly for querying/listing filesystem contents without modification.
Attacks that exploit this kind of access
Search for matching files and folders using glob patterns. Results always include path and type fields. For simple directory listing, use pattern. It is categorised as a Read tool in the BetterMCPFileServer MCP Server, which means it retrieves data without modifying state.
Register the BetterMCPFileServer MCP server in PolicyLayer and add a rule for searchFilesAndFolders: 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 BetterMCPFileServer. Nothing to install.
searchFilesAndFolders 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 searchFilesAndFolders 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 searchFilesAndFolders. 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.
searchFilesAndFolders is provided by the BetterMCPFileServer MCP server (martinschlott/bettermcpfileserver). 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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