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[BUG] Reasoning Engine stream path fails with structured output (response_mime_type unexpected in Runner.run_async)

agent engine[Component] This issue is related to Vertex AI Agent Engine[Component] This issue is related to Vertex AI Agent Engine

Status: Open.

Bug

#5223 In google/adk-python;

· FudoROK opened on Apr 9, 2026

rubric_based_final_response_quality_v1 does not evaluate text emitted before tool calls

eval[Component] This issue is related to evaluation[Component] This issue is related to evaluation

Status: Open.

Bug

#5217 In google/adk-python;

· Siddhartha90 opened on Apr 8, 2026

AgentEvaluator crashes with ValidationError when evaluating conversation_scenario eval cases

eval[Component] This issue is related to evaluation[Component] This issue is related to evaluation

Status: Open.

Bug

#5214 In google/adk-python;

· ASRagab opened on Apr 8, 2026

feat: EU AI Act compliance extensions for ADK agents - conformity credentials and audit trails

mcp[Component] Issues about MCP support[Component] Issues about MCP support

tools[Component] This issue is related to tools[Component] This issue is related to tools

Status: Open.

Feature

#5212 In google/adk-python;

· ascender1729 opened on Apr 8, 2026

feat: Add Explicit Termination Mechanism for Multi-Agent Workflows (Similar to AutoGen "TERMINATE")

core[Component] This issue is related to the core interface and implementation[Component] This issue is related to the core interface and implementation

Status: Open.

Feature

#5211 In google/adk-python;

· davidmonterocrespo24 opened on Apr 8, 2026

Audit trail and governance hooks for agent actions

needs review[Status] The PR/issue is awaiting review from the maintainer[Status] The PR/issue is awaiting review from the maintainer

tracing[Component] This issue is related to OpenTelemetry tracing[Component] This issue is related to OpenTelemetry tracing

Status: Open.

Feature

#5202 In google/adk-python;

· jagmarques opened on Apr 7, 2026

Runtime audit trail for tool calls

needs review[Status] The PR/issue is awaiting review from the maintainer[Status] The PR/issue is awaiting review from the maintainer

tools[Component] This issue is related to tools[Component] This issue is related to tools

Status: Open.

Feature

#5201 In google/adk-python;

· jagmarques opened on Apr 7, 2026

[Live/bidi] transfer_to_agent crashes with 1011 on Agent Engine — sub_agents delegation not supported on bidi_stream_query

live[Component] This issue is related to live, voice and video chat[Component] This issue is related to live, voice and video chat

Status: Open.

Bug

#5195 In google/adk-python;

· smwitkowski opened on Apr 7, 2026

Race condition: background compaction causes stale session ValueError on next request

services[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc

Status: Open.

Bug

#5194 In google/adk-python;

· thequantumquirk opened on Apr 7, 2026

TypeError in LoadSkillTool.run_async after session rewind: 'NoneType' object is not iterable

tools[Component] This issue is related to tools[Component] This issue is related to tools

Status: Open.

Bug

#5193 In google/adk-python;

· SAMFVH opened on Apr 7, 2026

adk deploy agent_engine fails on custom project structures due to hardcoded '.agent' import

agent engine[Component] This issue is related to Vertex AI Agent Engine[Component] This issue is related to Vertex AI Agent Engine

Status: Open.

Bug

#5192 In google/adk-python;

· sbhor-prog opened on Apr 7, 2026

Parallel tool calls: state_delta list values silently overwritten during merge

core[Component] This issue is related to the core interface and implementation[Component] This issue is related to the core interface and implementation

Status: Open.

Bug

#5190 In google/adk-python;

· thequantumquirk opened on Apr 7, 2026