Create a new image item on a Miro board using file from device or from chat
Part of the Miro Server server.
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AI agents use create-image-item-using-file to create or modify resources in Miro Server. 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 create-image-item-using-file 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 Miro Server.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"create-image-item-using-file": {
"limits": [
{
"counter": "create-image-item-using-file_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Miro Server policy for all 97 tools.
These attack patterns abuse exactly the kind of access create-image-item-using-file 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.
Create a new image item on a Miro board using file from device or from chat. It is categorised as a Write tool in the Miro Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Miro Server MCP server in PolicyLayer and add a rule for create-image-item-using-file: 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 Miro Server. Nothing to install.
create-image-item-using-file 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 create-image-item-using-file 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 create-image-item-using-file. 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.
create-image-item-using-file is provided by the Miro Server MCP server (k-jarzyna/mcp-miro). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 97 Miro Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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