add_cross_reference · LLM2Docs (Unofficial) MCP

WHAT IT DOES

What add_cross_reference does on LLM2Docs (Unofficial)

AI agents use add_cross_reference to create or update resources in LLM2Docs (Unofficial) — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your LLM2Docs (Unofficial) environment.

WHY IT NEEDS A POLICY

Why add_cross_reference needs a policy

Adding a cross-reference modifies the document by inserting a new link element, but this modification is reversible (can be deleted). This qualifies as Write rather than Read (has side effects) or Execute (does not run arbitrary code).

From the tool's definition Tool description states 'Add a cross-reference link' which creates a new reference element within a document. The sibling tools (append_text, apply_font_formatting, apply_heading) are all document modification operations, consistent with Write category.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_cross_reference Rate-limited

add_cross_reference 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_cross_reference": {
      "limits": [
        {
          "counter": "add_cross_reference_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 LLM2Docs (Unofficial), so you can run agents against it safely.

FAQ

Questions about add_cross_reference

What does the add_cross_reference tool do? +

Add a cross-reference link to a bookmark or heading. It is categorised as a Write tool in the LLM2Docs (Unofficial) 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_cross_reference? +

Register the LLM2Docs (Unofficial) MCP server in PolicyLayer and add a rule for add_cross_reference: 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 LLM2Docs (Unofficial). Nothing to install.

What risk level is add_cross_reference? +

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

Can I rate-limit add_cross_reference? +

Yes. Add a rate_limit block to the add_cross_reference 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_cross_reference completely? +

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

add_cross_reference is provided by the LLM2Docs (Unofficial) MCP server (nomannayeem/google-docs-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.