Gets file or directory statistics
AI agents call fs_stat to retrieve information from Mcp Ssh Tool without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
fs_stat retrieves metadata (permissions, size, timestamps, etc.) about files and directories without side effects. This is a pure read operation analogous to stat(2) or ls -l. No data is created, modified, deleted, or executed. The low severity reflects minimal blast radius if misused—an agent querying file statistics poses negligible risk compared to write/destructive/execute tools on the same server.
From the tool's definition Tool name 'fs_stat' and description 'Gets file or directory statistics' indicate querying file metadata without modification or deletion.
Attacks that exploit this kind of access
Gets file or directory statistics. It is categorised as a Read tool in the Mcp Ssh Tool MCP Server, which means it retrieves data without modifying state.
Register the Mcp Ssh Tool MCP server in PolicyLayer and add a rule for fs_stat: 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 Ssh Tool. Nothing to install.
fs_stat 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 fs_stat 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 fs_stat. 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.
fs_stat is provided by the Mcp Ssh Tool MCP server (skot/mcp-ssh-tool). 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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