keynote_set_element_fill_color · Keynote MCP: Risk & Policy

WHAT IT DOES

What keynote_set_element_fill_color does on Keynote

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

WHY IT NEEDS A POLICY

Why keynote_set_element_fill_color needs a policy

This tool creates or modifies presentation data (shape fill colors) in a reversible manner. Users can undo or re-apply different colors. It does not delete data (Destructive), execute arbitrary code (Execute), trigger external systems (Financial/Execute), or merely read (Read). Classified as Write.

From the tool's definition Tool changes fill color of shape elements ('Change the fill color of a shape element'). This modifies presentation content reversibly without deletion.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

keynote_set_element_fill_color Rate-limited

keynote_set_element_fill_color 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": {
    "keynote_set_element_fill_color": {
      "limits": [
        {
          "counter": "keynote_set_element_fill_color_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 Keynote, so you can run agents against it safely.

FAQ

Questions about keynote_set_element_fill_color

What does the keynote_set_element_fill_color tool do? +

Change the fill color of a shape element. It is categorised as a Write tool in the Keynote MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on keynote_set_element_fill_color? +

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

What risk level is keynote_set_element_fill_color? +

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

Can I rate-limit keynote_set_element_fill_color? +

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

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

keynote_set_element_fill_color is provided by the Keynote MCP server (tszaks/keynote-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.