Module handler 

Core request handler — protocol logic layer.

RequestHandler wires together the executor, stores, push sender, interceptors, and event queue manager to implement all A2A v1.0 methods.

Module overview

Module	Contents
limits	HandlerLimits — configurable per-handler bounds
messaging	RequestHandler::on_send_message — send/stream entry point
lifecycle	Get, list, cancel, resubscribe, extended agent card
push_config	Push notification config CRUD
event_processing	Event collection, state transitions, push delivery
shutdown	Ending in-flight work, then graceful shutdown with optional timeout

Structs

HandlerLimits

Configurable limits for the request handler.

InFlightReport

What RequestHandler::cancel_in_flight did.

RequestHandler

The core protocol logic handler.

ShutdownReport

What a shutdown actually managed to do.

Enums

InboundTracePolicy

What this deployment does with a traceparent an unauthenticated peer sent it.

SendMessageResponse

The result of a SendMessage call: either a Task or a Message.

SendMessageResult

Result of RequestHandler::on_send_message.

Constants

MIN_MESSAGE_ID_LENGTH

The smallest bound message.id may be held to: the length of a hyphenated UUID.