Get the last captured clipboard text
AI agents call vnc_get_clipboard to retrieve information from VNC MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves clipboard data without modifying it, executing code, or triggering external operations. While clipboard access could in rare cases expose sensitive data, the read-only nature and typical low sensitivity of clipboard contents (compared to Execute or Destructive actions) places it in the Read category with low severity. Confidence is high because the description is clear and unambiguous.
From the tool's definition Tool description states 'Get the last captured clipboard text' — a retrieval operation with no modification or execution. The verb 'get' and the absence of any side effects clearly indicate a read-only query of clipboard state.
Attacks that exploit this kind of access
Get the last captured clipboard text. It is categorised as a Read tool in the VNC MCP Server MCP Server, which means it retrieves data without modifying state.
Register the VNC MCP Server MCP server in PolicyLayer and add a rule for vnc_get_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 VNC MCP Server. Nothing to install.
vnc_get_clipboard is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the vnc_get_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.
Set action: deny in the PolicyLayer policy for vnc_get_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.
vnc_get_clipboard is provided by the VNC MCP Server MCP server (volkan-m/vnc-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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