Documentation
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Overview ¶
Package a2a maps an envelope.Message onto an A2A v1.0 message part and back. This phase carries no network call and no third-party import. See docs/plans/a2a.md for the contract.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func FromPart ¶
FromPart maps a Mapped value back to an envelope.Message. It unmarshals mapped.Part.Data into an envelope.Message, then overwrites ThreadID with mapped.ContextID and ID with mapped.MessageID before calling Validate. FromPart returns an error instead of an invalid Message: no malformed part crosses the a2a boundary silently.
Types ¶
type Mapped ¶
Mapped is the result of ToPart and the input to FromPart. It holds Part plus the two A2A Message-level fields Part cannot carry: ContextID (the envelope's ThreadID) and MessageID (the envelope's ID).
func ToPart ¶
ToPart maps a signed or unsigned envelope.Message onto a Mapped value. It calls m.Validate first and returns an error, not a zero Mapped, on failure. It signs nothing and does not modify m. ToPart builds Part.Data by calling m.Encode and wrapping the result in json.RawMessage, reusing envelope's wire encoder instead of a second marshal call; Text, Raw, and URL stay empty. Mapped.ContextID carries m.ThreadID and Mapped.MessageID carries m.ID.
type Part ¶
type Part struct {
Text string `json:"text,omitempty"`
Data json.RawMessage `json:"data,omitempty"`
Raw []byte `json:"raw,omitempty"`
URL string `json:"url,omitempty"`
}
Part is one A2A v1.0 message part. A2A v1.0 has no kind field and no separate part classes: one part carries text, raw bytes, a url, or a data object. Part carries no message-level field. ContextID and MessageID belong to the wrapping A2A Message, not to Part, so they live on Mapped, alongside Part, not on Part itself.
Source Files