insert_image_with_size_to_word
AI agents use insert_image_with_size_to_word to create or update resources in Office MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Office MCP Server environment.
This tool creates or modifies document content (inserting images) in a reversible manner. It does not execute arbitrary code, delete data, or move money. While the description is empty, the tool name and server context make the function clear. Severity is medium because unintended image insertions could clutter documents or introduce unwanted content, but the effect is reversible through standard document editing.
From the tool's definition Tool name 'insert_image_with_size_to_word' indicates image insertion into Word documents. Server description states it enables 'creating, editing, and processing Word, Excel, and PowerPoint documents' through 'natural language instructions'.
Attacks that exploit this kind of access
insert_image_with_size_to_word. It is categorised as a Write tool in the Office MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Office MCP Server MCP server in PolicyLayer and add a rule for insert_image_with_size_to_word: 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 Office MCP Server. Nothing to install.
insert_image_with_size_to_word 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 insert_image_with_size_to_word 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 insert_image_with_size_to_word. 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.
insert_image_with_size_to_word is provided by the Office MCP Server MCP server (walkingzzzy/office-mcp). 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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