Show HN: cMCP, deny an AI agent's tool call and get a signed receipt
Source: Github.com· agentrust-io· August 4, 2026
SynaBot summary
A new open-source project called cMCP allows AI agents to securely deny requests for specific tools. This system uses hardware-based attestation to ensure policies are enforced confidentially, providing a verifiable record of tool call decisions.
Key takeaways
- Hardware-attested policy enforcement for AI tool calls
- Securely deny AI agent access to specific functions
- Provides signed receipts for tool call denials
- Enhances AI security and auditable compliance
Why it matters
This development is crucial for businesses integrating AI assistants into sensitive workflows. It enables granular control over what data and actions AI agents can access, enhancing security and compliance by providing auditable proof of policy adherence.
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