This record as markdown: /tools/airmang-hwpx-mcp-server/place-seal.md
What place_seal does on Hwpx
AI agents use place_seal 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.
Why place_seal is rated Medium
The tool operates on HWPX documents and belongs to a server explicitly designed to 'modify HWPX documents.' Placing a seal is a Write operation—it adds or modifies document content (a seal/signature mark) but is reversible (can be removed or replaced). It does not delete data (Destructive), trigger external code execution (Execute), or move funds (Financial).
From the tool's definition Tool name 'place_seal' on a HWPX document modification server; sibling tools like 'add_heading', 'add_paragraph', 'add_table' are clearly Write operations.
Attacks that exploit this kind of access
The rule that runs place_seal safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hwpx, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For place_seal, this is the rule to start with:
place_seal 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Hwpx, apply this rule, and every place_seal call is checked against it from then on.
Questions about place_seal
place_seal is a write tool on the Hwpx MCP server. 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 place_seal: 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.
place_seal 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 place_seal 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 place_seal. 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.
place_seal is provided by the Hwpx MCP server (airmang/hwpx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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