ResearchResearch paperAgents & Tool Use · Safety & Alignment1 source · Oct 20, 2026

Proof-Carrying Contracts: Commitments AI Agents Cannot Break

We introduce Proof-Carrying Contracts (PC2), a framework for making agreed constraints enforceable throughout an agent's interactions with a system.

Key points

  • AI agents increasingly act on behalf of people or other agents, purchasing services, exchanging information and delegating work.
  • What an agent must respect is written in instructions, policies or agreements, but text alone cannot make it comply.
  • For an economy of such agents to function, parties need agreements they can rely on without inspecting or trusting one another's agents.
  • Before a requested operation can run, the agent must supply a machine-checkable proof that it preserves the agreed constraints in every case allowed by its model.

Sources (1)

  • [1]Proof-Carrying Contracts: Commitments AI Agents Cannot Break
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 20, 04:30 PM
    We introduce Proof-Carrying Contracts (PC2), a framework for making agreed constraints enforceable throughout an agent's interactions with a system.
    AI agents increasingly act on behalf of people or other agents, purchasing services, exchanging information and delegating work.

Extractive summary: sentences quoted from the sources.

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