AI agents use create_site to create or update resources in Hugo — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hugo environment.
This is a Write operation because it creates new site artifacts (directories, config files, template structures) that are reversible through deletion. It does not execute arbitrary code (Execute), destroy existing data (Destructive), or move funds (Financial).
From the tool's definition Tool name 'create_site' and description 'Create a new Hugo site' indicate the tool creates new site structure and configuration files, modifying the file system with new directories and initialization files.
Documented attack patterns abuse exactly the kind of access create_site gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Hugo, and nothing reaches the server without passing your rules. This is the rule we recommend for create_site:
{
"version": "1",
"default": "deny",
"tools": {
"create_site": {
"limits": [
{
"counter": "create_site_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_site 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.
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Create a new Hugo site. It is categorised as a Write tool in the Hugo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hugo MCP server in PolicyLayer and add a rule for create_site: 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 Hugo. Nothing to install.
create_site 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_site 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_site. 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_site is provided by the Hugo MCP server (sunnycloudyang/hugo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Hugo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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15 Hugo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.