set_space_owners

Replace owners on an existing Huly space. Owners accept account UUID, exact email, or exact person display name. By default, owners are also ensured in members.

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/set-space-owners.md

WHAT IT DOES

What set_space_owners does on Huly

AI agents use set_space_owners 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 set_space_owners is rated Medium

This tool modifies access control metadata (space owners) on an existing resource. While it affects permissions and could have significant blast radius if misused by an agent (potentially locking out legitimate users or granting unauthorized administrative access), it is reversible—owners can be replaced again.

From the tool's definition Tool description states 'Replace owners on an existing Huly space' - this is a modification operation that changes ownership permissions on a space resource.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

set_space_owners Rate-limited

set_space_owners 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": {
    "set_space_owners": {
      "limits": [
        {
          "counter": "set_space_owners_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 set_space_owners call is checked against it from then on.

FAQ

Questions about set_space_owners

What does the set_space_owners tool do? +

Replace owners on an existing Huly space. Owners accept account UUID, exact email, or exact person display name. By default, owners are also ensured in 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 set_space_owners? +

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

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

Can I rate-limit set_space_owners? +

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

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

set_space_owners 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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