sanity_publish · Sanity MCP Server MCP: Risk & Policy

WHAT IT DOES

What sanity_publish does on Sanity MCP Server

AI agents use sanity_publish to create or update resources in Sanity MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sanity MCP Server environment.

WHY IT NEEDS A POLICY

Why sanity_publish needs a policy

This tool modifies content state by transitioning a draft document to published status. While reversible (can be unpublished or replaced), it has significant blast radius—publishing incorrect, sensitive, or malicious content could damage reputation, expose private information, or spread misinformation.

From the tool's definition Publish a draft document (moves from drafts.* to published). Requires write token.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sanity_publish Rate-limited

sanity_publish 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sanity_publish": {
      "limits": [
        {
          "counter": "sanity_publish_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Sanity MCP Server, so you can run agents against it safely.

FAQ

Questions about sanity_publish

What does the sanity_publish tool do? +

Publish a draft document (moves from drafts.* to published). Requires write token. It is categorised as a Write tool in the Sanity MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on sanity_publish? +

Register the Sanity MCP Server MCP server in PolicyLayer and add a rule for sanity_publish: 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 Sanity MCP Server. Nothing to install.

What risk level is sanity_publish? +

sanity_publish is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit sanity_publish? +

Yes. Add a rate_limit block to the sanity_publish 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.

How do I block sanity_publish completely? +

Set action: deny in the PolicyLayer policy for sanity_publish. 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.

What MCP server provides sanity_publish? +

sanity_publish is provided by the Sanity MCP Server MCP server (purple-horizons/sanity-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.