update_department

SERVERHuly SOURCE@firfi/huly-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dearlordylord-huly-mcp/update-department.md

WHAT IT DOES

What update_department does on Huly

AI agents use update_department to create or update resources in Huly, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Huly environment.

RISK

Why update_department is rated Medium

Modifies department structure, hierarchy, and assignments reversibly; no irreversible deletion or financial impact observed.

From the tool's definition Rename, move, replace department metadata and people; rejects cycles, prevents subtree moves with server-derived members.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_department safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Huly, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_department, this is the rule to start with:

update_department Rate-limited

update_department 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_department": {
      "limits": [
        {
          "counter": "update_department_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Huly, apply this rule, and every update_department call is checked against it from then on.

FAQ

Questions about update_department

What does the update_department tool do? +

Rename, move, or replace department metadata and people. Rejects duplicate sibling names, parent cycles, and moves of subtrees with server-derived members; clear Staff.department assignments before moving a populated subtree. newParent=null moves top-level; teamLead=null clears. Never writes Department.members. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_department? +

Register the Huly MCP server in PolicyLayer and add a rule for update_department: 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 Huly. Nothing to install.

What risk level is update_department? +

update_department is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_department? +

Yes. Add a rate_limit block to the update_department 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.

How do I block update_department completely? +

Set action: deny in the PolicyLayer policy for update_department. 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.

What MCP server provides update_department? +

update_department is provided by the Huly MCP server (@firfi/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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