keynote_set_theme

THE RISK

Medium Risk

Why keynote_set_theme needs a policy

The tool modifies presentation metadata (theme) in a reversible manner. It does not delete data (not Destructive), execute arbitrary code (not Execute), handle finances (not Financial), or merely read data (not Read). This is a clear Write operation: it alters the presentation state but the change can be undone.

From the tool's definition Tool description states 'Change the theme of an existing Keynote presentation' — this modifies presentation properties reversibly without deleting content or executing arbitrary code.

Documented attack patterns abuse exactly the kind of access keynote_set_theme gives an agent:

POLICY

How to control keynote_set_theme

PolicyLayer is an MCP gateway — it sits between your AI agents and Iwork, and nothing reaches the server without passing your rules. This is the rule we recommend for keynote_set_theme:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "keynote_set_theme": {
      "limits": [
        {
          "counter": "keynote_set_theme_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

keynote_set_theme 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.

Create a free account and register Iwork — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Iwork tools

Destructive keynote_delete_slide Delete a slide from the presentation Destructive numbers_clear_cells Clear the contents of a cell or range Destructive numbers_delete_column Delete one or more columns from a table Destructive numbers_delete_row Delete one or more rows from a table Destructive numbers_delete_sheet Delete a sheet from a Numbers document Destructive numbers_delete_table Delete a table from a sheet Destructive pages_delete_text Delete a paragraph by index (preserves formatting on other paragraphs) Destructive keynote_close_presentation Close a Keynote presentation

All 114 Iwork tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about keynote_set_theme

What does the keynote_set_theme tool do? +

Change the theme of an existing Keynote presentation (use keynote_list_themes to see available themes). It is categorised as a Write tool in the Iwork 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_theme? +

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

What risk level is keynote_set_theme? +

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

Can I rate-limit keynote_set_theme? +

Yes. Add a rate_limit block to the keynote_set_theme 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_theme completely? +

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

keynote_set_theme is provided by the Iwork MCP server (reichenbach/iwork_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Iwork tool call.

Start from Iwork, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →