Change character style (font, size, bold, italic, underline) for text runs containing a target string in a .hwpx file. Args: - file_path (string): Absolute path to the source .hwpx file - target_text (string): Text to match for style application - font_name (string, optional): Font name e.g.
AI agents use hwpx_set_style to create or update resources in Hwpx — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hwpx environment.
This tool modifies document formatting attributes (font, size, bold, italic, underline) within a .hwpx file. These changes are reversible—styles can be changed again or undone—making it a Write operation rather than Destructive. The severity is medium because while style modifications affect document appearance and could corrupt formatting if misapplied, they do not delete data or execute arbitrary code.
From the tool's definition Tool description states it can 'Change character style (font, size, bold, italic, underline) for text runs' in .hwpx files, which modifies document content. Arguments include file_path and target_text for applying these changes.
Attacks that exploit this kind of access
Change character style (font, size, bold, italic, underline) for text runs containing a target string in a .hwpx file. Args: - file_path (string): Absolute path to the source .hwpx file - target_text (string): Text to match for style application - font_name (string, optional): Font name e.g. It is categorised as a Write tool in the Hwpx MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hwpx MCP server in PolicyLayer and add a rule for hwpx_set_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 Hwpx. Nothing to install.
hwpx_set_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 hwpx_set_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 hwpx_set_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.
hwpx_set_style is provided by the Hwpx MCP server (rgbcap/hwpx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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