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SDK doesn't validate proto REQUIRED fields in SendMessage: missing messageId, role, or parts is accepted

Status: Open.

#876 In a2aproject/a2a-python;

· zeroasterisk opened on Mar 19, 2026

SDK CreateTaskPushNotificationConfig uses TaskPushNotificationConfig (flat) as request type; spec defines CreateTaskPushNotificationConfigRequest (nested config)

Status: Open.

#875 In a2aproject/a2a-python;

· zeroasterisk opened on Mar 19, 2026

SDK SendMessageConfiguration uses 'return_immediately' but spec v1.0 defines 'blocking' (semantically inverted, incompatible)

Status: Open.

#874 In a2aproject/a2a-python;

· zeroasterisk opened on Mar 19, 2026

InMemoryTaskStore.list_tasks() does not return required pagination fields (totalSize, pageSize, nextPageToken)

Status: Open.

#872 In a2aproject/a2a-python;

· zeroasterisk opened on Mar 19, 2026

[Feat]: Add RetryTransport for automatic retry with exponential backoff

Status: Open.

Feature

#871 In a2aproject/a2a-python;

· cchinchilla-dev opened on Mar 19, 2026

[Feat]: Improve server concurrency architecture

Status: Open.

Feature

#869 In a2aproject/a2a-python;

· bartek-w opened on Mar 19, 2026

[Feat]: Add GetExtendedAgentCard method in RequestHandler

Status: Open.

Feature

#866 In a2aproject/a2a-python;

· guglielmo-san opened on Mar 19, 2026

[Bug]: Server does not validate A2A-Version header — missing VersionNotSupportedError for unsupported versions

Status: Open.

Bug

#856 In a2aproject/a2a-python;

· jmesnil opened on Mar 17, 2026

[Bug]: Check presence of required fileds on server side

Status: Open.

Bug

#845 In a2aproject/a2a-python;

· guglielmo-san opened on Mar 17, 2026

[Feat]: Add streaming-aware helper for artifact updates

Status: Open.

Feature

#833 In a2aproject/a2a-python;

· kevinlu310 opened on Mar 15, 2026

[Question] How to handle event loss during resubscribe when connection breaks?

Status: Open.

#832 In a2aproject/a2a-python;

· lijinpengFj opened on Mar 15, 2026

[Bug]: REST task/request id sanitization

maintainers-only

Status: Open.

Bug

#805 In a2aproject/a2a-python;

· bartek-w opened on Mar 11, 2026