AI agents use add_table to create or update resources in Doc Tools — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Doc Tools environment.
This tool creates or modifies document content (adding a table) reversibly within a Word document. It aligns with Write category tools on this server. Severity is medium because modifying document structure could corrupt or alter important data, but the action is reversible (tables can be deleted or edited).
From the tool's definition Tool name 'add_table' on a document writing server ('Word document reading and writing MCP'); sibling tools include 'create_document', 'add_paragraph', and 'search_and_replace', all of which are Write operations.
Documented attack patterns abuse exactly the kind of access add_table gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Doc Tools, and nothing reaches the server without passing your rules. This is the rule we recommend for add_table:
{
"version": "1",
"default": "deny",
"tools": {
"add_table": {
"limits": [
{
"counter": "add_table_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_table 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_table. It is categorised as a Write tool in the Doc Tools MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Doc Tools MCP server in PolicyLayer and add a rule for add_table: 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 Doc Tools. Nothing to install.
add_table 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 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. 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 is provided by the Doc Tools MCP server (puchunjie/doc-tools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Doc Tools, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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7 Doc Tools tools catalogued and risk-classified — across an index of 43,000+ MCP servers.