Generate a word cloud and return it as a WebP image. Data is sent to word-cloud.net servers for processing only and is not logged or stored.
Risk signalsHigh parameter count (22 properties)
Part of the Word Cloud Generator (word Cloud Net) server.
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AI agents use generate_wordcloud_image to create or modify resources in Word Cloud Generator (word Cloud Net). 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 generate_wordcloud_image 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 Word Cloud Generator (word Cloud Net).
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"generate_wordcloud_image": {
"limits": [
{
"counter": "generate_wordcloud_image_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Word Cloud Generator (word Cloud Net) policy for all 3 tools.
These attack patterns abuse exactly the kind of access generate_wordcloud_image 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.
Generate a word cloud and return it as a WebP image. Data is sent to word-cloud.net servers for processing only and is not logged or stored.. It is categorised as a Write tool in the Word Cloud Generator (word Cloud Net) MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Word Cloud Generator (word Cloud Net) MCP server in PolicyLayer and add a rule for generate_wordcloud_image: 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 Word Cloud Generator (word Cloud Net). Nothing to install.
generate_wordcloud_image 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 generate_wordcloud_image 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 generate_wordcloud_image. 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.
generate_wordcloud_image is provided by the Word Cloud Generator (word Cloud Net) MCP server (https://word-cloud.net/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 3 Word Cloud Generator (word Cloud Net) tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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