apply_text_replacements · PPTX MCP Server MCP: Risk & Policy

WHAT IT DOES

What apply_text_replacements does on PPTX MCP Server

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

WHY IT NEEDS A POLICY

Why apply_text_replacements needs a policy

This tool falls under Write category as it modifies existing presentation data (text content) in a reversible manner. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), or trigger financial transactions (would be Financial).

From the tool's definition Tool enables modification of PowerPoint presentation content through text replacements. Description states it can 'Apply text replacements' which creates or modifies data within the presentation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apply_text_replacements Rate-limited

apply_text_replacements 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": {
    "apply_text_replacements": {
      "limits": [
        {
          "counter": "apply_text_replacements_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 PPTX MCP Server, so you can run agents against it safely.

FAQ

Questions about apply_text_replacements

What does the apply_text_replacements tool do? +

Apply text replacements to a PowerPoint presentation using a JSON specification. It is categorised as a Write tool in the PPTX 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 apply_text_replacements? +

Register the PPTX MCP Server MCP server in PolicyLayer and add a rule for apply_text_replacements: 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 PPTX MCP Server. Nothing to install.

What risk level is apply_text_replacements? +

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

Can I rate-limit apply_text_replacements? +

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

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

apply_text_replacements is provided by the PPTX MCP Server MCP server (shjanjua/pptx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.