Upload one or more files to a file input element on the page. Use when the user wants to attach files, upload images, or submit documents through a file input field. Parameters: - ref: The file input element reference from snapshot (e.g.,
AI agents use pilot_file_upload to create or update resources in Pilot — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pilot environment.
This tool writes/uploads files to a web page via a file input element. It can submit arbitrary documents or images to external services, which could lead to data exfiltration, unauthorized file submissions, or uploading malicious content. It is reversible in principle (the upload can potentially be cancelled or deleted), so Write is the appropriate category rather than Destructive.
From the tool's definition Upload one or more files to a file input element on the page
Documented attack patterns abuse exactly the kind of access pilot_file_upload gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Pilot, and nothing reaches the server without passing your rules. This is the rule we recommend for pilot_file_upload:
{
"version": "1",
"default": "deny",
"tools": {
"pilot_file_upload": {
"limits": [
{
"counter": "pilot_file_upload_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}pilot_file_upload 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.
Upload one or more files to a file input element on the page. Use when the user wants to attach files, upload images, or submit documents through a file input field. Parameters: - ref: The file input element reference from snapshot (e.g.,. It is categorised as a Write tool in the Pilot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Pilot MCP server in PolicyLayer and add a rule for pilot_file_upload: 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 Pilot. Nothing to install.
pilot_file_upload 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 pilot_file_upload 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 pilot_file_upload. 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.
pilot_file_upload is provided by the Pilot MCP server (tacosyhorchata/pilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 61 Pilot tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
61 Pilot tools catalogued and risk-classified — across an index of 42,500+ MCP servers.