File metadata (size, mime, license, upload date, thumbnail urls).
Part of the Commons Wikimedia server.
Free to start. No card required.
AI agents use file_info to create or modify resources in Commons Wikimedia. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call file_info repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Commons Wikimedia.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"file_info": {
"limits": [
{
"counter": "file_info_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Commons Wikimedia policy for all 25 tools.
These attack patterns abuse exactly the kind of access file_info gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
File metadata (size, mime, license, upload date, thumbnail urls).. It is categorised as a Write tool in the Commons Wikimedia MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Commons Wikimedia MCP server in PolicyLayer and add a rule for file_info: 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 Commons Wikimedia. Nothing to install.
file_info 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_info 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_info. 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_info is provided by the Commons Wikimedia MCP server (https://gateway.pipeworx.io/commons-wikimedia/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 25 Commons Wikimedia tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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