Add a row to a table with tracked insertion. row_idx=-1 appends.
AI agents use add_table_row 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 creates new content (a table row) within a Word document in a reversible manner. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), or involve financial operations (would be Financial). The 'tracked insertion' feature indicates changes are logged and can be reviewed/undone, confirming Write category.
From the tool's definition Tool description explicitly states 'Add a row to a table' and 'tracked insertion', indicating creation/modification of document content. The row_idx parameter controls where the row is inserted (append if -1), making this a reversible content addition.
Documented attack patterns abuse exactly the kind of access add_table_row 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 add_table_row:
{
"version": "1",
"default": "deny",
"tools": {
"add_table_row": {
"limits": [
{
"counter": "add_table_row_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_table_row 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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Add a row to a table with tracked insertion. row_idx=-1 appends. 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 add_table_row: 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.
add_table_row 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 add_table_row 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 add_table_row. 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.
add_table_row 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.
Free to start. No card required.
219 Docx tools catalogued and risk-classified — across an index of 43,000+ MCP servers.