add_heading · ContextForge MCP Gateway MCP: Risk & Policy

WHAT IT DOES

What add_heading does on ContextForge MCP Gateway

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

WHY IT NEEDS A POLICY

Why add_heading needs a policy

This tool creates or modifies document structure by adding a heading. It is a Write operation because it creates new content in a document; the action is reversible (headings can be removed or edited). It does not execute code, delete data, move money, or trigger external side effects.

From the tool's definition Tool name is 'add_heading' and description states 'Add a heading to a document', which is a create/modify operation that adds content to a document reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_heading Rate-limited

add_heading 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": {
    "add_heading": {
      "limits": [
        {
          "counter": "add_heading_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 ContextForge MCP Gateway, so you can run agents against it safely.

FAQ

Questions about add_heading

What does the add_heading tool do? +

Add a heading to a document. It is categorised as a Write tool in the ContextForge MCP Gateway MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_heading? +

Register the ContextForge MCP Gateway MCP server in PolicyLayer and add a rule for add_heading: 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 ContextForge MCP Gateway. Nothing to install.

What risk level is add_heading? +

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

Can I rate-limit add_heading? +

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

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

add_heading is provided by the ContextForge MCP Gateway MCP server (jrmatherly/mcp-context-forge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.