실행 취소(Undo)를 수행합니다. Args: count: 취소할 횟수 (기본값: 1) Returns: str: 결과 메시지
AI agents use hwp_undo to create or update resources in HWP MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your HWP MCP Server environment.
Undo is a reversible operation that reverts prior changes to a document state. It modifies the document by removing or restoring content, but the changes are not permanent and can themselves be undone (typically via redo). This makes it Write rather than Destructive, as the original state can be recovered.
From the tool's definition Tool name 'hwp_undo' and description '실행 취소(Undo)를 수행합니다' (Performs undo operation) indicates it reverses previous document modifications. The 'count' parameter specifies how many undo operations to perform.
Documented attack patterns abuse exactly the kind of access hwp_undo gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and HWP MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for hwp_undo:
{
"version": "1",
"default": "deny",
"tools": {
"hwp_undo": {
"limits": [
{
"counter": "hwp_undo_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}hwp_undo 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.
실행 취소(Undo)를 수행합니다. Args: count: 취소할 횟수 (기본값: 1) Returns: str: 결과 메시지. It is categorised as a Write tool in the HWP MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the HWP MCP Server MCP server in PolicyLayer and add a rule for hwp_undo: 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 HWP MCP Server. Nothing to install.
hwp_undo 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 hwp_undo 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 hwp_undo. 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.
hwp_undo is provided by the HWP MCP Server MCP server (jkf87/hwp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from HWP MCP Server, 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.
30 HWP MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.