AI agents use ppt_open_presentation to create or update resources in Ppt — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ppt environment.
Based on the tool name, this likely opens a PowerPoint presentation file, which is a Write-level action (loading/opening a file into an application context). It could also be Read if it merely reads the file without modifying it. Since the description is empty, confidence is reduced.
From the tool's definition Tool name 'ppt_open_presentation'; description is empty and uninformative.
Documented attack patterns abuse exactly the kind of access ppt_open_presentation gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ppt, and nothing reaches the server without passing your rules. This is the rule we recommend for ppt_open_presentation:
{
"version": "1",
"default": "deny",
"tools": {
"ppt_open_presentation": {
"limits": [
{
"counter": "ppt_open_presentation_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}ppt_open_presentation 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.
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ppt_open_presentation. It is categorised as a Write tool in the Ppt MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ppt MCP server in PolicyLayer and add a rule for ppt_open_presentation: 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 Ppt. Nothing to install.
ppt_open_presentation is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the ppt_open_presentation 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.
Set action: deny in the PolicyLayer policy for ppt_open_presentation. 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.
ppt_open_presentation is provided by the Ppt MCP server (ykuwai/ppt-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 156 Ppt tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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156 Ppt tools catalogued and risk-classified — across an index of 42,500+ MCP servers.