Perform bulk file operations (move, copy, rename) on single or multiple files and directories concurrently.
AI agents use file_operations to create or update resources in Vulcan File Ops — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Vulcan File Ops environment.
This tool moves, copies, and renames files/directories in bulk and concurrently. These are primarily Write-category operations as they create new file locations or copies and modify file metadata. Move and rename could be considered partially destructive (overwriting destinations), but since copy and rename are included and there's no explicit delete, Write is the most accurate category.
From the tool's definition Perform bulk file operations (move, copy, rename) on single or multiple files and directories concurrently
Documented attack patterns abuse exactly the kind of access file_operations gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Vulcan File Ops, and nothing reaches the server without passing your rules. This is the rule we recommend for file_operations:
{
"version": "1",
"default": "deny",
"tools": {
"file_operations": {
"limits": [
{
"counter": "file_operations_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}file_operations stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Perform bulk file operations (move, copy, rename) on single or multiple files and directories concurrently. It is categorised as a Write tool in the Vulcan File Ops MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Vulcan File Ops MCP server in PolicyLayer and add a rule for file_operations: 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 Vulcan File Ops. Nothing to install.
file_operations is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the file_operations 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 file_operations. 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.
file_operations is provided by the Vulcan File Ops MCP server (n0zer0d4y/vulcan-file-ops). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Vulcan File Ops, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
15 Vulcan File Ops tools catalogued and risk-classified — across an index of 43,000+ MCP servers.