A2A Reference
A2A Reference
The reference pages answer one narrow question each and are built to be scanned. They sit next to the Core Objects pages, which explain how things work, and the Specification , which gives the complete rules.
| Page | Read this when |
|---|---|
| A2A Error Codes | You received an A2A error, or you implement error handling in a server or client |
| Agent Card Proto Field Numbers | You work with generated protobuf code, or migrate a card or SDK from v0.3 to v1.0 |
Each page states which version it was checked against and links its sources. Where the official documents disagree with each other, the page says so and follows a2a.proto, which the specification names as the normative definition.
Source: A2A official specification
and a2a.proto