add_text_to_slide · Gg MCP: Risk & Policy

WHAT IT DOES

What add_text_to_slide does on Gg

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

WHY IT NEEDS A POLICY

Why add_text_to_slide needs a policy

This tool creates or modifies presentation content (adding a text box to an existing slide). The operation is reversible—text boxes can be deleted and slides can be restored from version history in Google Slides. It does not irreversibly destroy data, execute arbitrary code, or move funds.

From the tool's definition Tool description states 'Add a text box to a slide', which creates/modifies content in a presentation file.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_text_to_slide Rate-limited

add_text_to_slide 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_text_to_slide": {
      "limits": [
        {
          "counter": "add_text_to_slide_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 Gg, so you can run agents against it safely.

FAQ

Questions about add_text_to_slide

What does the add_text_to_slide tool do? +

Add a text box to a slide. slide_index: 0-based. Coordinates in points (pt). It is categorised as a Write tool in the Gg 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_text_to_slide? +

Register the Gg MCP server in PolicyLayer and add a rule for add_text_to_slide: 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 Gg. Nothing to install.

What risk level is add_text_to_slide? +

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

Can I rate-limit add_text_to_slide? +

Yes. Add a rate_limit block to the add_text_to_slide 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_text_to_slide completely? +

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

add_text_to_slide is provided by the Gg MCP server (tannht/google-cloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.