AI agents call ppt_list_fonts to retrieve information from Ppt without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns information about fonts already in use within a presentation. It performs no side effects, makes no modifications to data, executes no code, and poses no destructive or financial risk. It is a straightforward data retrieval operation, fitting the Read category at low severity.
From the tool's definition Tool name 'ppt_list_fonts' and description 'List all fonts used in the active presentation' indicate a query operation that retrieves metadata about existing presentation properties without modifying or executing anything.
Documented attack patterns abuse exactly the kind of access ppt_list_fonts 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_list_fonts:
{
"version": "1",
"default": "deny",
"tools": {
"ppt_list_fonts": {}
}
}ppt_list_fonts is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all fonts used in the active presentation. It is categorised as a Read tool in the Ppt MCP Server, which means it retrieves data without modifying state.
Register the Ppt MCP server in PolicyLayer and add a rule for ppt_list_fonts: 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_list_fonts is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ppt_list_fonts 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_list_fonts. 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_list_fonts 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.