AI agents use add_paragraph 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.
The tool adds content to a document, which modifies data reversibly. This is a Write operation (create/modify data without deletion). Severity is medium because document modification could affect important content, but changes are reversible and no data is destroyed. Confidence is 0.85 rather than higher because the description is empty; however, the tool name and server context strongly indicate its purpose.
From the tool's definition Tool name 'add_paragraph' and sibling tools 'add_table', 'create_document', 'search_and_replace' indicate document modification capabilities. Server description confirms 'writing' functionality for Word documents.
Documented attack patterns abuse exactly the kind of access add_paragraph 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_paragraph:
{
"version": "1",
"default": "deny",
"tools": {
"add_paragraph": {
"limits": [
{
"counter": "add_paragraph_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_paragraph 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_paragraph. 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_paragraph: 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_paragraph 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_paragraph 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_paragraph. 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_paragraph 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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