ACORN WORLD INTELLIGENCEINTEROPERABILITY · 2026-10-12 · ACORN GLOBAL
What MCP, A2A and agentic commerce can — and cannot — prove
A discoverable tool is not automatically an authenticated trading counterparty, merchant or licensed custodian.
Original educational and operational guidance. This article does not establish a real customer incident, vendor event, executed intervention or independently measured performance.
Three operational decisions
- Separate read-only tool discovery from authenticated delegation and signed tasks.
- Confirm merchant authorization, checkout commitments, tax and payment-provider compliance.
- Publish which interfaces are actually running, tested and independently verified.
A defined capability is not an executed action. Execution is not independent evidence of customer value.