keynote.list_themes

THE RISK

Low Risk

Why keynote.list_themes needs a policy

This tool performs a simple enumeration of existing Keynote themes, which is a non-destructive read operation with no side effects. The blast radius of misuse is minimal—an AI agent could only retrieve theme names/metadata already available in the system.

From the tool's definition Tool name 'list_themes' and description 'List all available Keynote themes' indicate a read-only query operation that retrieves theme metadata without modifying any data.

Documented attack patterns abuse exactly the kind of access keynote.list_themes gives an agent:

POLICY

How to control keynote.list_themes

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "keynote.list_themes": {}
  }
}

keynote.list_themes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about keynote.list_themes

What does the keynote.list_themes tool do? +

List all available Keynote themes. It is categorised as a Read tool in the Orchard MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on keynote.list_themes? +

Register the Orchard MCP server in PolicyLayer and add a rule for keynote.list_themes: 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 Orchard. Nothing to install.

What risk level is keynote.list_themes? +

keynote.list_themes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit keynote.list_themes? +

Yes. Add a rate_limit block to the keynote.list_themes 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.list_themes completely? +

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

keynote.list_themes is provided by the Orchard MCP server (l22-io/orchard-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Orchard tool call.

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

CHECK YOUR STACK →