AI agents call pptx_list_shapes to retrieve information from Pptx without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about shapes present on a slide (indices, types, positions, text previews). It performs data retrieval only, with no capability to modify, delete, execute code, or cause irreversible changes. The blast radius of misuse is minimal—an agent could only view presentation structure, not alter it.
From the tool's definition Tool name and description indicate it 'List all shapes on a slide with indices, types, positions, text preview' - a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all shapes on a slide with indices, types, positions, text preview. It is categorised as a Read tool in the Pptx MCP Server, which means it retrieves data without modifying state.
Register the Pptx MCP server in PolicyLayer and add a rule for pptx_list_shapes: 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. Nothing to install.
pptx_list_shapes 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 pptx_list_shapes 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 pptx_list_shapes. 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.
pptx_list_shapes is provided by the Pptx MCP server (knorq-ai/pptx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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