Read the contents of multiple files simultaneously.
AI agents call read_multiple_files to retrieve information from Desktop Commander MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves file contents without creating, modifying, or deleting data. However, severity is elevated to 'medium' (rather than 'low') because on a system where file access is sensitive (Desktop Commander with terminal execution capabilities), simultaneous reading of multiple files could expose sensitive configuration files, credentials, or private data if an AI agent is compromised or misaligned.
From the tool's definition Tool name is 'read_multiple_files' and description states it 'Read[s] the contents of multiple files'. The verb 'read' and absence of any modification language clearly indicate data retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access read_multiple_files gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Desktop Commander MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for read_multiple_files:
{
"version": "1",
"default": "deny",
"tools": {
"read_multiple_files": {}
}
}read_multiple_files is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Read the contents of multiple files simultaneously. It is categorised as a Read tool in the Desktop Commander MCP MCP Server, which means it retrieves data without modifying state.
Register the Desktop Commander MCP server in PolicyLayer and add a rule for read_multiple_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 Desktop Commander MCP. Nothing to install.
read_multiple_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 read_multiple_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 read_multiple_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.
read_multiple_files is provided by the Desktop Commander MCP server (mrgnss/claudedesktopcommander). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Desktop Commander MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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19 Desktop Commander MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.