01
Source outputs
Reports, data, summaries, images, and internal material produced by an agent.
Contract-aware agent handoff
Deliver agent outputs against the receiver's contract.
A2A Artifact Handoff selects required deliverables, validates structure and integrity, packages the handoff, and returns an explicit receiver decision.
02
Receiver contract
Required identifiers, filenames, media types, content rules, and integrity constraints.
03
Verified package
Only matched deliverables are validated, hashed, manifested, and packaged.
04
Acceptance decision
The receiver gets an explicit accepted, rejected, or repair-required next action.
Blind agent flow passed
compile_handoff → inspect_handoff
Integrity checked
SHA-256 and contract satisfaction
Private outputs excluded
Unrequested material stays outside the package
Receiver decision returned
accepted → consume_deliverables
Live product
Run a handoff
Submit source-agent outputs and inspect the generated package, manifest, hashes, URLs, and receiver-ready artifacts.
A2A Artifact Handoff
Turn agent outputs into PDF, HTML, normalized JSON, a SHA-256 manifest, and a portable ZIP package.
Public demo on Base Sepolia. Processing requires an x402-compatible client.