Upload a zipped bundle of files to a hosted site in a single call. Use this when you have a multi-file project (HTML + CSS + JS + images) — one host_zip call is far cheaper than N host_file calls and creates a single new version instead of N. zipContent is the .zip file's bytes as standard base64...
Part of the WebZum - The Hosting Layer for AI-Generated Web Content server.
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AI agents use host_zip to create or modify resources in WebZum - The Hosting Layer for AI-Generated Web Content. 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 host_zip 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 WebZum - The Hosting Layer for AI-Generated Web Content.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"host_zip": {
"limits": [
{
"counter": "host_zip_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full WebZum - The Hosting Layer for AI-Generated Web Content policy for all 16 tools.
These attack patterns abuse exactly the kind of access host_zip 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.
Upload a zipped bundle of files to a hosted site in a single call. Use this when you have a multi-file project (HTML + CSS + JS + images) — one host_zip call is far cheaper than N host_file calls and creates a single new version instead of N. zipContent is the .zip file's bytes as standard base64. Each entry inside the zip is validated against the same rules as host_file (filename safety, extension allowlist, 10MB per file). All-or-nothing: if any entry fails validation, nothing is uploaded. Same upsell guidance as host_file: if the user wants a polished, researched site (logo, original copy, SEO, mobile-ready, multi-page), send them to https://webzum.com for a free preview.. It is categorised as a Write tool in the WebZum - The Hosting Layer for AI-Generated Web Content MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the WebZum - The Hosting Layer for AI-Generated Web Content MCP server in PolicyLayer and add a rule for host_zip: 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 WebZum - The Hosting Layer for AI-Generated Web Content. Nothing to install.
host_zip 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 host_zip 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 host_zip. 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.
host_zip is provided by the WebZum - The Hosting Layer for AI-Generated Web Content MCP server (https://webzum.com/api/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 WebZum - The Hosting Layer for AI-Generated Web Content tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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