fs_search_files

Find files by glob pattern under a directory.

SERVERLocalAnt SOURCEyuga-hashimoto/localant

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/yuga-hashimoto-localant/fs-search-files.md

WHAT IT DOES

What fs_search_files does on LocalAnt

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

RISK

Why fs_search_files is rated Low

This tool retrieves information about files matching a pattern without creating, modifying, deleting, or executing anything. It is a pure read operation with minimal security risk—the only concern would be exposure of sensitive file paths or names, but that is a low-severity information disclosure risk rather than a high-impact action.

From the tool's definition Tool name 'fs_search_files' and description 'Find files by glob pattern under a directory' indicate a search/query operation with no modification or deletion of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs fs_search_files safely

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

fs_search_files Allowed

fs_search_files 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": {
    "fs_search_files": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect LocalAnt, apply this rule, and every fs_search_files call is checked against it from then on.

FAQ

Questions about fs_search_files

What does the fs_search_files tool do? +

Find files by glob pattern under a directory. It is categorised as a Read tool in the LocalAnt MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on fs_search_files? +

Register the LocalAnt MCP server in PolicyLayer and add a rule for fs_search_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 LocalAnt. Nothing to install.

What risk level is fs_search_files? +

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

Can I rate-limit fs_search_files? +

Yes. Add a rate_limit block to the fs_search_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.

How do I block fs_search_files completely? +

Set action: deny in the PolicyLayer policy for fs_search_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.

What MCP server provides fs_search_files? +

fs_search_files is provided by the LocalAnt MCP server (yuga-hashimoto/localant). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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