AI agents

Tool gateways and schema enforcement

• A Tool Gateway That Refuses on Tier, Not on Argument
• What a Gateway Should Assert Before Forwarding a Model Reply
• A Schema Hash Is a Release Artifact: Versioning It
• Audit Queries for Tool Access: Caller, Tier and Approval
• Countable Failures: A Log Schema for Tool Result Gates
• Prompt, Validator or Gateway: Where a Rule Lives
• Validating Agent Tool Calls Before Execution
• What an LLM Gateway Should Log and Keep