AI agents call filesystem_list to retrieve information from Godot Devtool without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the filesystem structure without modifying, deleting, or executing anything. It is a standard read operation that retrieves directory and file information for inspection purposes, consistent with the Read category definition of 'retrieves or queries data; no side effects (search, list, get, fetch)'.
From the tool's definition Tool name 'filesystem_list' and description 'List files and directories inside a Godot project' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access filesystem_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Godot Devtool, and nothing reaches the server without passing your rules. This is the rule we recommend for filesystem_list:
{
"version": "1",
"default": "deny",
"tools": {
"filesystem_list": {}
}
}filesystem_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List files and directories inside a Godot project. It is categorised as a Read tool in the Godot Devtool MCP Server, which means it retrieves data without modifying state.
Register the Godot Devtool MCP server in PolicyLayer and add a rule for filesystem_list: 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 Godot Devtool. Nothing to install.
filesystem_list 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 filesystem_list 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 filesystem_list. 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.
filesystem_list is provided by the Godot Devtool MCP server (wangdiandao/godot-devtool). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 101 Godot Devtool tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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101 Godot Devtool tools catalogued and risk-classified — across an index of 42,500+ MCP servers.