cMCP Tool Lets You Reject AI Agent Requests and Generate Signed Receipts

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A new open-source project called cMCP has been shared on Hacker News by developer agentrust-io. The tool is designed to work within the Model Context Protocol (MCP) framework used by AI agents. It allows users or systems to deny an AI agent's tool call requests rather than simply accepting them. When a denial occurs, cMCP generates a cryptographically signed receipt as a verifiable record of the rejection. The project appears aimed at improving accountability and auditability in AI agent workflows.

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