Show HN: Gate – deterministic write-path checkpoint for AI agents

The write-path control plane for AI agents. AI agents can read systems freely. The problem is writes - CRM imports, email sends, database updates, refunds. Once the agent does it, you can't unsee it. Gate sits between the agent and production. Agents submit an intent, Gate evaluates a YAML policy, and only then issues a signed execution order. No LLM at evaluation time - same input always produces the same output.