mcp.horizonshield.dev: Field a2a_carriage was removed from create_ap2_fairness_attestation output; consumers reading it will break.

What changed

Field a2a_carriage was removed from create_ap2_fairness_attestation output; consumers reading it will break.

What to do

If your agents call mcp.horizonshield.dev, pin the new snapshot, patch the affected call sites, and let a green contract check confirm the fix. If you don't use the changed tools, nothing is required, but the rest of the ecosystem just learned about it at the same moment you did.