Set row height in millimetres. rule: exact, atLeast, or auto.
AI agents use set_row_height to create or update resources in Docx — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Docx environment.
This tool modifies document properties (table row height) reversibly without deleting data or executing arbitrary code. It fits the Write category as it creates or modifies data (document formatting) in a reversible manner. Severity is medium because formatting changes could affect document layout and readability, but the impact is non-destructive and easily correctable by reverting the change.
From the tool's definition Tool name 'set_row_height' and description 'Set row height in millimetres' indicate modification of document structure.
Documented attack patterns abuse exactly the kind of access set_row_height gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Docx, and nothing reaches the server without passing your rules. This is the rule we recommend for set_row_height:
{
"version": "1",
"default": "deny",
"tools": {
"set_row_height": {
"limits": [
{
"counter": "set_row_height_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_row_height 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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Set row height in millimetres. rule: exact, atLeast, or auto. It is categorised as a Write tool in the Docx MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Docx MCP server in PolicyLayer and add a rule for set_row_height: 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 Docx. Nothing to install.
set_row_height 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 set_row_height 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 set_row_height. 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.
set_row_height is provided by the Docx MCP server (securityronin/docx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Docx, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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219 Docx tools catalogued and risk-classified — across an index of 43,000+ MCP servers.