export_pptx · AI-Canvas MCP Server MCP: Risk & Policy

WHAT IT DOES

What export_pptx does on AI-Canvas MCP Server

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

WHY IT NEEDS A POLICY

Why export_pptx needs a policy

This tool writes data (serializes design content into PPTX format and creates/overwrites a file). It is reversible (the file can be deleted), so it does not qualify as Destructive. It has no financial impact, does not execute arbitrary code, and produces a tangible modification to stored data.

From the tool's definition 'Export...to a PowerPoint presentation' creates a new output file (PowerPoint document) on disk or in storage, modifying the system's state by adding or overwriting a file.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_pptx Rate-limited

export_pptx 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": {
    "export_pptx": {
      "limits": [
        {
          "counter": "export_pptx_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 AI-Canvas MCP Server, so you can run agents against it safely.

FAQ

Questions about export_pptx

What does the export_pptx tool do? +

Export brand collateral or slides to a PowerPoint presentation. It is categorised as a Write tool in the AI-Canvas MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_pptx? +

Register the AI-Canvas MCP Server MCP server in PolicyLayer and add a rule for export_pptx: 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 AI-Canvas MCP Server. Nothing to install.

What risk level is export_pptx? +

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

Can I rate-limit export_pptx? +

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

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

export_pptx is provided by the AI-Canvas MCP Server MCP server (laoluojuhai/ai-canvas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.