skill_duplicate

Duplicate an existing skill with a new ID and optional modifications.

SERVERCoWork OS SOURCECoWork-OS/CoWork-OS

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/cowork-os/skill-duplicate.md

WHAT IT DOES

What skill_duplicate does on CoWork OS

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

RISK

Why skill_duplicate is rated Medium

The tool creates new data (a duplicate skill) and may modify attributes during the duplication process. This is a Write operation because duplication is reversible—the original remains intact and the duplicate can be deleted.

From the tool's definition The tool description states it will 'Duplicate an existing skill with a new ID and optional modifications.' This involves creating a copy of data (a skill) with potentially modified attributes, which is a reversible write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs skill_duplicate safely

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

skill_duplicate Rate-limited

skill_duplicate 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": {
    "skill_duplicate": {
      "limits": [
        {
          "counter": "skill_duplicate_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 CoWork OS, apply this rule, and every skill_duplicate call is checked against it from then on.

FAQ

Questions about skill_duplicate

What does the skill_duplicate tool do? +

Duplicate an existing skill with a new ID and optional modifications. It is categorised as a Write tool in the CoWork OS MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on skill_duplicate? +

Register the CoWork OS MCP server in PolicyLayer and add a rule for skill_duplicate: 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 CoWork OS. Nothing to install.

What risk level is skill_duplicate? +

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

Can I rate-limit skill_duplicate? +

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

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

skill_duplicate is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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