create_workspace_custom_field · Clockify Time Tracking MCP

WHAT IT DOES

What create_workspace_custom_field does on Clockify Time Tracking

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

WHY IT NEEDS A POLICY

Why create_workspace_custom_field needs a policy

This tool creates (adds) a new custom field configuration, which is a reversible modification of workspace settings. It does not execute arbitrary code, delete data irreversibly, or move money. Sibling tools like 'create_client' and 'create_assignment' follow the same Write pattern.

From the tool's definition Tool name 'create_workspace_custom_field' indicates creation of a new custom field resource within a workspace.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_workspace_custom_field Rate-limited

create_workspace_custom_field 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": {
    "create_workspace_custom_field": {
      "limits": [
        {
          "counter": "create_workspace_custom_field_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Clockify Time Tracking, so you can run agents against it safely.

FAQ

Questions about create_workspace_custom_field

What does the create_workspace_custom_field tool do? +

create_workspace_custom_field. It is categorised as a Write tool in the Clockify Time Tracking MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_workspace_custom_field? +

Register the Clockify Time Tracking MCP server in PolicyLayer and add a rule for create_workspace_custom_field: 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 Clockify Time Tracking. Nothing to install.

What risk level is create_workspace_custom_field? +

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

Can I rate-limit create_workspace_custom_field? +

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

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

create_workspace_custom_field is provided by the Clockify Time Tracking MCP server (pypi:clockify-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.