a2a

type Adapter struct {
	// contains filtered or unexported fields
}

type AgentCard struct {
	Name                 string           `json:"name"`
	Description          string           `json:"description,omitempty"`
	URL                  string           `json:"url"`
	Version              string           `json:"version,omitempty"`
	ProtocolVersion      string           `json:"protocolVersion,omitempty"`
	PreferredTransport   string           `json:"preferredTransport,omitempty"`
	AdditionalInterfaces []AgentInterface `json:"additionalInterfaces,omitempty"`
	Capabilities         Capabilities     `json:"capabilities,omitempty"`
	DefaultInputModes    []string         `json:"defaultInputModes,omitempty"`
	DefaultOutputModes   []string         `json:"defaultOutputModes,omitempty"`
	Skills               []AgentSkill     `json:"skills,omitempty"`
}

type AgentConfig struct {
	// Name is the reference name: a2a://<name>/<skill>. Must be
	// lowercase because the name travels in the URI host position of a
	// federation reference, where RFC 3986 case-insensitivity means
	// parsers normalize to lowercase (see federation.ParseReference).
	Name string `yaml:"name"`

	// AgentCardURL locates the agent card. A base URL (empty or "/"
	// path) gets WellKnownCardPath appended. The JSON-RPC endpoint is
	// then resolved from the card.
	AgentCardURL string `yaml:"agent_card_url,omitempty"`

	// Endpoint is the JSON-RPC endpoint, bypassing card discovery.
	// When both Endpoint and AgentCardURL are set, Endpoint wins for
	// transport and the card is still fetched for skill validation.
	Endpoint string `yaml:"endpoint,omitempty"`

	// Skills is the subset of the agent's skills mast may invoke;
	// empty = all (docs/a2a-design.md).
	Skills []string `yaml:"skills,omitempty"`

	// Auth is optional; absent means unauthenticated calls.
	Auth *AuthConfig `yaml:"auth,omitempty"`

	// TimeoutSeconds bounds each invocation; 0 = DefaultTimeout.
	TimeoutSeconds int `yaml:"timeout_seconds,omitempty"`

	// Filename records provenance for error messages.
	Filename string `yaml:"-"`
}

type AgentInterface struct {
	Transport string `json:"transport"`
	URL       string `json:"url"`
}

type AgentSkill struct {
	ID          string   `json:"id"`
	Name        string   `json:"name,omitempty"`
	Description string   `json:"description,omitempty"`
	Tags        []string `json:"tags,omitempty"`
	InputModes  []string `json:"inputModes,omitempty"`
	OutputModes []string `json:"outputModes,omitempty"`
}

type Artifact struct {
	ArtifactID  string `json:"artifactId,omitempty"`
	Name        string `json:"name,omitempty"`
	Description string `json:"description,omitempty"`
	Parts       []Part `json:"parts,omitempty"`
}

type AuthConfig struct {
	// Type is the auth mechanism; v0.1: "bearer" only.
	Type string `yaml:"type"`

	// TokenEnv names the environment variable holding the bearer
	// token. Resolved at request time, not load time, so rotation
	// does not require a config reload.
	TokenEnv string `yaml:"token_env"`
}

type Capabilities struct {
	Streaming         bool `json:"streaming,omitempty"`
	PushNotifications bool `json:"pushNotifications,omitempty"`
}

type Client struct {
	// contains filtered or unexported fields
}

type ClientOption func(*Client)

type Message struct {
	Kind      string         `json:"kind"`
	MessageID string         `json:"messageId"`
	Role      string         `json:"role"`
	Parts     []Part         `json:"parts"`
	TaskID    string         `json:"taskId,omitempty"`
	ContextID string         `json:"contextId,omitempty"`
	Metadata  map[string]any `json:"metadata,omitempty"`
}

type Part struct {
	Kind     string         `json:"kind"`
	Text     string         `json:"text,omitempty"`
	Data     map[string]any `json:"data,omitempty"`
	Metadata map[string]any `json:"metadata,omitempty"`
}

type RPCError struct {
	Code    int             `json:"code"`
	Message string          `json:"message"`
	Data    json.RawMessage `json:"data,omitempty"`
}

type Task struct {
	Kind      string     `json:"kind"`
	ID        string     `json:"id"`
	ContextID string     `json:"contextId,omitempty"`
	Status    TaskStatus `json:"status"`
	Artifacts []Artifact `json:"artifacts,omitempty"`
}

type TaskState string

type TaskStatus struct {
	State   TaskState `json:"state"`
	Message *Message  `json:"message,omitempty"`
}