AI agents use ppt_ungroup_shapes 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.
This tool modifies presentation content by changing how shapes are organized, constituting a Write action. It is reversible (re-grouping is possible), so it does not qualify as Destructive. The severity is medium because ungrouping shapes in a presentation could disrupt carefully designed layouts, but the effect is recoverable and localized to shape organization rather than data loss or irreversible destruction.
From the tool's definition 'Ungroup a group shape into its individual shapes' — modifies the structure of presentation objects by decomposing grouped shapes, which is reversible (shapes can be re-grouped).
Documented attack patterns abuse exactly the kind of access ppt_ungroup_shapes 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_ungroup_shapes:
{
"version": "1",
"default": "deny",
"tools": {
"ppt_ungroup_shapes": {
"limits": [
{
"counter": "ppt_ungroup_shapes_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}ppt_ungroup_shapes 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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Ungroup a group shape into its individual shapes. 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_ungroup_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 Ppt. Nothing to install.
ppt_ungroup_shapes 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_ungroup_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 ppt_ungroup_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.
ppt_ungroup_shapes 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.
Free to start. No card required.
156 Ppt tools catalogued and risk-classified — across an index of 42,500+ MCP servers.