write_clipboard

Write text to the system clipboard

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/write-clipboard.md

WHAT IT DOES

What write_clipboard does on CoWork OS

AI agents use write_clipboard 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 write_clipboard is rated Medium

This tool modifies clipboard data, which is reversible and non-destructive. It has a medium severity because uncontrolled clipboard writes could interfere with user workflows, inject malicious content into paste operations, or facilitate social engineering by prepending/appending text to user copy-paste chains.

From the tool's definition Tool name 'write_clipboard' and description 'Write text to the system clipboard' indicate modification of system state (clipboard contents).

Attacks that exploit this kind of access

RECOMMENDED RULE

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

write_clipboard Rate-limited

write_clipboard 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": {
    "write_clipboard": {
      "limits": [
        {
          "counter": "write_clipboard_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 write_clipboard call is checked against it from then on.

FAQ

Questions about write_clipboard

What does the write_clipboard tool do? +

Write text to the system clipboard. 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 write_clipboard? +

Register the CoWork OS MCP server in PolicyLayer and add a rule for write_clipboard: 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 write_clipboard? +

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

Can I rate-limit write_clipboard? +

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

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

write_clipboard 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.

KEEP EXPLORING

More on CoWork OS, and thousands of servers like it.

This server

All 342 CoWork OS tools →

Across the catalogue

team_manager_write_memory on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →