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Error serializing to JSON - can't encode character '\udcc3'

models[Component] Issues related to model support[Component] Issues related to model support

Status: Open.

Bug

#4480 In google/adk-python;

· cl3m3nt opened on Feb 13, 2026

Automatic A2A SecurityScheme & Skill Security Support in AgentCardBuilder

a2a[Component] This issue is related a2a support inside ADK.[Component] This issue is related a2a support inside ADK.

Status: Open.

Feature

#4479 In google/adk-python;

· djanito opened on Feb 13, 2026

VertexAiSessionService fails with ValidationError when using EventsCompactionConfig and ContextCacheConfig in ADK App

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

#4477 In google/adk-python;

· bgautham-dev opened on Feb 13, 2026

Adk web from typescript does not initialize state

web[Component] This issue will be transferred to adk-web[Component] This issue will be transferred to adk-web

Status: Open.

Bug

#4476 In google/adk-python;

· federicobassetto opened on Feb 13, 2026

Concur OAuth2 code exchange fails in ADK: 'str' object has no attribute 'get' (client_secret_post)

auth[Component] This issue is related to authorization[Component] This issue is related to authorization

Status: Open.

Bug

#4473 In google/adk-python;

· YutaMiyake opened on Feb 13, 2026

Auth/confirmation resume ignores skip_summarization on re-executed tool response

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

#4472 In google/adk-python;

· halfpasttense opened on Feb 12, 2026

Plugin callbacks (before_agent, after_agent, before_model, after_model, etc.) not being invoked by InMemoryRunner

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

#4464 In google/adk-python;

· sssahas opened on Feb 12, 2026

Memory Bank not persisting memories when Agent is called via Gemini Enterprise (works in Playground)

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

#4463 In google/adk-python;

· lucasarlego opened on Feb 12, 2026

interrupted sometimes didn't work

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

#4460 In google/adk-python;

· Wu-Jiayang opened on Feb 12, 2026

ServiceAccountCredentialExchanger: ID Token kind

auth[Component] This issue is related to authorization[Component] This issue is related to authorization

Status: Open.

Bug

#4458 In google/adk-python;

· lpezet opened on Feb 12, 2026

ADK 1.24.x MCP StreamableHTTP cancel scope error with adk web + Cloud Run

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.

Bug

#4454 In google/adk-python;

· smithakolan opened on Feb 11, 2026

LIVE BIDI streaming, Agent's instructions are not getting updated even if I do dynamic update via hot-reload

answered[Status] This issue has been answered by the maintainer[Status] This issue has been answered by the maintainer

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

#4450 In google/adk-python;

· ravi-incred opened on Feb 11, 2026