add_drive_members

Idempotently add members to an existing Drive. Members accept account UUIDs, exact emails, or exact person names and resolve to Huly account UUIDs before replacing the Drive member list.

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/add-drive-members.md

WHAT IT DOES

What add_drive_members does on Huly

AI agents use add_drive_members 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 add_drive_members is rated Medium

This tool modifies access permissions by updating a Drive's member list. While it writes data (member assignments), it does not irreversibly delete data, execute arbitrary code, or move money.

From the tool's definition Tool description states "add members to an existing Drive" and "replacing the Drive member list", which are modification operations. The term "idempotently add" indicates reversible changes to access control.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_drive_members 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 add_drive_members, this is the rule to start with:

add_drive_members Rate-limited

add_drive_members 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": {
    "add_drive_members": {
      "limits": [
        {
          "counter": "add_drive_members_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 add_drive_members call is checked against it from then on.

FAQ

Questions about add_drive_members

What does the add_drive_members tool do? +

Idempotently add members to an existing Drive. Members accept account UUIDs, exact emails, or exact person names and resolve to Huly account UUIDs before replacing the Drive member list. 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 add_drive_members? +

Register the Huly MCP server in PolicyLayer and add a rule for add_drive_members: 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 add_drive_members? +

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

Can I rate-limit add_drive_members? +

Yes. Add a rate_limit block to the add_drive_members 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 add_drive_members completely? +

Set action: deny in the PolicyLayer policy for add_drive_members. 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 add_drive_members? +

add_drive_members 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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