publish_content · Inkwell MCP Server MCP: Risk & Policy

WHAT IT DOES

What publish_content does on Inkwell MCP Server

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

WHY IT NEEDS A POLICY

Why publish_content needs a policy

This tool creates or modifies content (markdown entries) in a persistent store, making it a Write operation. It is not Read (it creates, not retrieves), not Execute (no arbitrary code execution), not Destructive (publishing/drafting is reversible; content can be edited or deleted), and not Financial.

From the tool's definition Tool description states it "Creates a markdown entry stored in KV and indexed in D1", which describes creating and storing new content. The ability to "Publish or draft" indicates reversible creation of content.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

publish_content Rate-limited

publish_content 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": {
    "publish_content": {
      "limits": [
        {
          "counter": "publish_content_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 Inkwell MCP Server, so you can run agents against it safely.

FAQ

Questions about publish_content

What does the publish_content tool do? +

Publish or draft content to Inkwell. Creates a markdown entry stored in KV and indexed in D1. It is categorised as a Write tool in the Inkwell 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 publish_content? +

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

What risk level is publish_content? +

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

Can I rate-limit publish_content? +

Yes. Add a rate_limit block to the publish_content 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 publish_content completely? +

Set action: deny in the PolicyLayer policy for publish_content. 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 publish_content? +

publish_content is provided by the Inkwell MCP Server MCP server (mumega-com/inkwell). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.