Append a new paragraph to the end of an .hwpx document body. Clones the last paragraph
AI agents use append_hwp_paragraph to create or update resources in Hwp — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hwp environment.
This tool creates and modifies document content reversibly. While it adds content to a file, the operation is not destructive (can be undone/edited) and does not permanently delete or overwrite data. It falls under Write category. Severity is medium because malicious use could inject unwanted content into documents, but the impact is localized to a single document and reversible.
From the tool's definition Tool appends (creates) a new paragraph to a document body by cloning the last paragraph. The description explicitly states 'Append a new paragraph' and 'Clones the last paragraph', indicating document modification.
Documented attack patterns abuse exactly the kind of access append_hwp_paragraph gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Hwp, and nothing reaches the server without passing your rules. This is the rule we recommend for append_hwp_paragraph:
{
"version": "1",
"default": "deny",
"tools": {
"append_hwp_paragraph": {
"limits": [
{
"counter": "append_hwp_paragraph_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}append_hwp_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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Append a new paragraph to the end of an .hwpx document body. Clones the last paragraph. It is categorised as a Write tool in the Hwp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hwp MCP server in PolicyLayer and add a rule for append_hwp_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 Hwp. Nothing to install.
append_hwp_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 append_hwp_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 append_hwp_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.
append_hwp_paragraph is provided by the Hwp MCP server (treesoop/hwp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 31 Hwp tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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31 Hwp tools catalogued and risk-classified — across an index of 42,500+ MCP servers.