Uses of Package
io.a2a.spec

Packages that use io.a2a.spec

Package	Description
io.a2a.spec	JSON processing exceptions for the A2A Java SDK.
io.a2a.util	Utility classes and helpers for the A2A Java SDK.

Classes in io.a2a.spec used by io.a2a.spec

Class	Description
A2AClientError	Base exception for A2A client-specific error conditions.
A2AError	Marker interface for A2A Protocol error events.
A2AException	Base exception for A2A Protocol-related failures.
A2AProtocolError	Represents a protocol-level error in the A2A Protocol with a reference URL.
AgentCapabilities	Defines optional capabilities supported by an agent in the A2A Protocol.
AgentCapabilities.Builder	Builder for constructing immutable AgentCapabilities instances.
AgentCard	The AgentCard is a self-describing manifest for an agent in the A2A Protocol.
AgentCard.Builder	Builder for constructing immutable AgentCard instances.
AgentCardSignature	Represents a digital signature for an AgentCard using JSON Web Signature (JWS) format.
AgentCardSignature.Builder	Builder for constructing immutable AgentCardSignature instances.
AgentExtension	Represents a protocol extension supported by an agent.
AgentExtension.Builder	Builder for constructing immutable AgentExtension instances.
AgentInterface	Declares a combination of a target URL and protocol binding for accessing an agent.
AgentProvider	Represents information about the organization or entity providing an agent.
AgentSkill	Represents a distinct skill or capability that an agent can perform in the A2A Protocol.
AgentSkill.Builder	Builder for constructing immutable AgentSkill instances.
APIKeySecurityScheme	API key security scheme for agent authentication.
APIKeySecurityScheme.Builder	Builder for constructing immutable APIKeySecurityScheme instances.
APIKeySecurityScheme.Location	Represents the location of the API key.
Artifact	Represents a file, data structure, or other resource generated by an agent during task execution.
Artifact.Builder	Builder for constructing immutable Artifact instances.
AuthenticationInfo	Authentication information for agent authentication and push notification endpoints.
AuthorizationCodeOAuthFlow	Configuration for the OAuth 2.0 Authorization Code flow.
CancelTaskParams	Parameters for cancelling a task.
CancelTaskParams.Builder	Builder for constructing instances.
ClientCredentialsOAuthFlow	Configuration for the OAuth 2.0 Client Credentials flow.
DeleteTaskPushNotificationConfigParams	Parameters for deleting a push notification configuration from a task.
DeleteTaskPushNotificationConfigParams.Builder	Builder for constructing DeleteTaskPushNotificationConfigParams instances.
DeviceCodeOAuthFlow	Configuration details for the OAuth 2.0 Device Code flow (RFC 8628).
Event	Marker interface for all event types in the A2A Protocol.
EventKind	Interface for events that can be returned from non-streaming A2A Protocol operations.
FileContent	Sealed interface representing file content in the A2A Protocol.
GetTaskPushNotificationConfigParams	Parameters for retrieving push notification configuration for a specific task.
GetTaskPushNotificationConfigParams.Builder	Builder for constructing GetTaskPushNotificationConfigParams instances.
HTTPAuthSecurityScheme	HTTP authentication security scheme for agent authentication.
HTTPAuthSecurityScheme.Builder	Builder for constructing HTTPAuthSecurityScheme instances.
ListTaskPushNotificationConfigsParams	Parameters for listing all push notification configurations for a task.
ListTaskPushNotificationConfigsParams.Builder	Builder for constructing instances.
ListTasksParams	Parameters for listing tasks with optional filtering and pagination.
ListTasksParams.Builder	Builder for constructing instances.
Message	Represents a single message in the conversation between a user and an agent in the A2A Protocol.
Message.Builder	Builder for constructing Message instances with fluent API.
Message.Role	Defines the role of the message sender in the conversation.
MessageSendConfiguration	Configuration options for message/send and message/stream requests.
MessageSendConfiguration.Builder	Builder for constructing MessageSendConfiguration instances.
MessageSendParams	Parameters for sending a message to an agent in the A2A Protocol.
MessageSendParams.Builder	Builder for constructing MessageSendParams instances.
OAuth2SecurityScheme	OAuth 2.0 security scheme for agent authentication.
OAuth2SecurityScheme.Builder	Builder for constructing immutable OAuth2SecurityScheme instances.
OAuthFlows	Configuration for supported OAuth 2.0 authorization flows.
OAuthFlows.Builder	Builder for constructing OAuthFlows instances.
OpenIdConnectSecurityScheme	OpenID Connect security scheme for agent authentication.
OpenIdConnectSecurityScheme.Builder	Builder for constructing immutable OpenIdConnectSecurityScheme instances.
Part	Base interface for content parts within Messages and Artifacts.
SecurityRequirement	Represents a security requirement in the A2A Protocol.
SecurityRequirement.Builder	Builder for constructing immutable SecurityRequirement instances.
SecurityScheme	Base interface for security schemes used to authenticate access to agent endpoints.
StreamingEventKind	Sealed interface for events that can be emitted during streaming A2A Protocol operations.
Task	Represents a single, stateful operation or conversation between a client and an agent in the A2A Protocol.
Task.Builder	Builder for constructing immutable Task instances.
TaskArtifactUpdateEvent	Event notifying that a task artifact has been created, modified, or appended to.
TaskArtifactUpdateEvent.Builder	Builder for constructing TaskArtifactUpdateEvent instances.
TaskIdParams	Parameters containing a task identifier for task-related operations.
TaskIdParams.Builder	Builder for constructing instances.
TaskPushNotificationConfig	Push notification configuration associated with a specific task.
TaskPushNotificationConfig.Builder	Builder for constructing TaskPushNotificationConfig instances.
TaskQueryParams	Defines parameters for querying a task, with an option to limit history length.
TaskQueryParams.Builder	Builder for constructing instances.
TaskState	Defines the lifecycle states of a Task in the A2A Protocol.
TaskStatus	Represents the status of a task at a specific point in time in the A2A Protocol.
TaskStatusUpdateEvent	An event sent by the agent to notify the client of a change in a task's status.
TaskStatusUpdateEvent.Builder	Builder for constructing TaskStatusUpdateEvent instances.
TransportProtocol	Enumeration of supported transport protocols for A2A Protocol communication.
UpdateEvent	Sealed interface for incremental update events during task execution.

Classes in io.a2a.spec used by io.a2a.util

Class	Description
A2AClientException	Exception indicating a client-side failure in A2A Protocol operations.
AgentCard	The AgentCard is a self-describing manifest for an agent in the A2A Protocol.
AgentInterface	Declares a combination of a target URL and protocol binding for accessing an agent.
Task	Represents a single, stateful operation or conversation between a client and an agent in the A2A Protocol.
TaskArtifactUpdateEvent	Event notifying that a task artifact has been created, modified, or appended to.