AI agents use format_table_style to create or update resources in Docx_MCP_cj — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Docx_MCP_cj environment.
The tool appears to modify document formatting reversibly (changing styles/appearance of tables), which constitutes a Write operation. Severity is medium because unintended formatting changes could obscure or misrepresent document content, but the changes are reversible. Confidence is lowered to 0.7 due to the empty description, which prevents definitive confirmation of exact behavior.
From the tool's definition Tool name 'format_table_style' suggests modifying table formatting/styling in a Word document. Server description indicates tools that 'fill any Word document tables' and modify documents.
Documented attack patterns abuse exactly the kind of access format_table_style gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Docx_MCP_cj, and nothing reaches the server without passing your rules. This is the rule we recommend for format_table_style:
{
"version": "1",
"default": "deny",
"tools": {
"format_table_style": {
"limits": [
{
"counter": "format_table_style_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}format_table_style 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.
Free to start. No card required.
format_table_style. It is categorised as a Write tool in the Docx_MCP_cj MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Docx_MCP_cj MCP server in PolicyLayer and add a rule for format_table_style: 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_MCP_cj. Nothing to install.
format_table_style 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 format_table_style 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 format_table_style. 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.
format_table_style is provided by the Docx_MCP_cj MCP server (rockcj/docx_mcp_cj). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 54 Docx_MCP_cj tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
54 Docx_MCP_cj tools catalogued and risk-classified — across an index of 42,500+ MCP servers.