List files in a project directory
AI agents call list_files to retrieve information from MCP-Claude Code Bridge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information (file listings) without creating, modifying, deleting, or executing operations. It is a straightforward query operation with minimal risk if called with any directory path. Severity is low as the worst outcome would be information disclosure of file names, which is typically not sensitive in most development contexts.
From the tool's definition Tool is named 'list_files' and described as 'List files in a project directory' — a directory listing operation with no modification or side effects.
Attacks that exploit this kind of access
List files in a project directory. It is categorised as a Read tool in the MCP-Claude Code Bridge MCP Server, which means it retrieves data without modifying state.
Register the MCP-Claude Code Bridge MCP server in PolicyLayer and add a rule for list_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 MCP-Claude Code Bridge. Nothing to install.
list_files 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_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.
Set action: deny in the PolicyLayer policy for list_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.
list_files is provided by the MCP-Claude Code Bridge MCP server (sobieskicodes/claude-desktop-mcp-to-claude-agent). 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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