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[Design]: Clarify discovery semantics for v0.3 compatibility projections on AgentCard output

Status: Open.

#1051 In a2aproject/a2a-python;

· liujuanjuan1984 opened on May 6, 2026

a2a-sdk 1.0.1: '_upb.FieldDescriptor' object has no attribute 'is_repeated' on every message/send

Status: Open.

#1050 In a2aproject/a2a-python;

· bokelley opened on May 5, 2026

DefaultRequestHandlerV2._setup_active_task registers empty push subscriptions due to proto3 truthiness check

Status: Open.

#1045 In a2aproject/a2a-python;

· AXEG0 opened on May 4, 2026

[Bug]: v0.3 REST compatibility exposes GET /v1/tasks but ListTasks is still unimplemented

component: serverIssues related to frameworks for agent execution, HTTP/event handling, database persistence logic.Issues related to frameworks for agent execution, HTTP/event handling, database persistence logic.

Status: Open.

Bug

#1043 In a2aproject/a2a-python;

· liujuanjuan1984 opened on May 3, 2026

[Bug]: append=True with unknown artifact_id silently drops the chunk — should fail loudly

Status: Open.

Bug

#1038 In a2aproject/a2a-python;

· imars opened on May 1, 2026

[Bug]: @trace_class on EventQueue generates excessive spans during LLM streaming (1500+/session)

component: serverIssues related to frameworks for agent execution, HTTP/event handling, database persistence logic.Issues related to frameworks for agent execution, HTTP/event handling, database persistence logic.

Status: Open.

Bug

#1034 In a2aproject/a2a-python;

· tomoyukiy0 opened on Apr 30, 2026

Feat]: Client-side utility for assembling artifacts from update events

component: clientIssues related to transport logic and configuration for external apps connecting to A2A agents.Issues related to transport logic and configuration for external apps connecting to A2A agents.

Status: Open.

Feature

#1030 In a2aproject/a2a-python;

· ishymko opened on Apr 29, 2026

[Task]: Update JSON-RPC error format according to the latest spec changes

maintainers-only

Status: Open.

Task

#1027 In a2aproject/a2a-python;

· ishymko opened on Apr 28, 2026

[Task]: Prepare URL validation infrastructure for agent card and webhook SSRF protection

component: coreIssues related to base data models, auth, gRPC interfaces, observability, and fundamental utilities.Issues related to base data models, auth, gRPC interfaces, observability, and fundamental utilities.

Status: Open.

Task

#1023 In a2aproject/a2a-python;

· ishymko opened on Apr 27, 2026

[Task]: Replace deprecated FieldDescriptor.label with is_repeated in proto_utils

Status: Open.

#1011 In a2aproject/a2a-python;

· sokoliva opened on Apr 22, 2026

[Feat]: Agent card validation hook

maintainers-only

Status: Open.

Feature

#975 In a2aproject/a2a-python;

· ishymko opened on Apr 16, 2026

on_message_send blocks HTTP response even with blocking=False

Status: Open.

#951 In a2aproject/a2a-python;

· ruimgf opened on Apr 8, 2026