Bumps the default Gemini model across the Google ADK showcase from
gemini-2.5-flash to gemini-3.1-flash-lite — the closest GA model in
the Gemini 3.x line (2.5 family is slated for June 2026 deprecation).
Touches agent factories (DEFAULT_MODEL, _DEFAULT_A2UI_MODEL, _SUB_MODEL),
the A2UI default-model test fixture, QA docs, the manifest description
for the reasoning demo, and prose references in shared_chat docstring +
entrypoint comment.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
QA3's sed pass missed making it into the consolidated commit. Landing
now so the e2e specs target the demo's current URL after the
byoc→declarative rename.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Result of 10 parallel QA agents auditing all 30 active demos against
langgraph-python (north-star). Each agent ported drift back to LP-verbatim
across three axes:
1. Agent layer
- tool_rendering_common.py: rebuilt to LP's surface — get_weather,
search_flights(origin, destination), get_stock_price, roll_d20,
roll_dice. Removed the ADK-only query_data.
- tool_rendering_*_agent.py (4 variants): ported LP's travel/concierge
prompt; reasoning-chain variant got LP's chain-two-tools prompt.
- beautiful_chat_agent.py: ported LP's per-tool system prompt; added
manage_sales_todos / get_sales_todos / generate_a2ui; dropped the
redundant schedule_meeting (frontend HITL handles it).
- open_gen_ui_agents.py: ported LP's full SYSTEM_PROMPT for both
variants, including the Websandbox.connection.remote.* contract
for the advanced sandbox demo (was `window.sandbox.*`, which the
LP frontend's Websandbox bridge silently no-ops).
- byoc_agents.py: fused LP's hashbrown + json-render prompts so the
single ADK byoc_agent emits both wire shapes. Aliases exported for
a future per-route split.
- declarative_gen_ui_agent.py: ported LP's a2ui_dynamic SYSTEM_PROMPT.
- a2ui_fixed_agent.py: picked up LP's #4734 regression guard
("exactly ONCE", "do NOT call again").
- agent_config_agent.py: rewrote to read useAgentContext (was
state["config"]); reconciled schema to LP's 3-field camelCase
{tone, expertise, responseLength} with LP's value enums.
- subagents_agent.py: dropped the "running" placeholder; returns
plain str so the LP-verbatim frontend's `result?.trim()` works.
- hitl_in_app_agent.py / hitl_in_chat_book_call_agent.py: prompts +
tool-result shape ({approved, reason}) aligned to LP.
- AGUIToolset() added wherever it was missing on the bespoke agents
(multimodal, mcp_apps, a2ui_fixed) so frontend-registered tools
reach the model.
2. Dedicated runtime routes
- copilotkit-multimodal/route.ts (new) — mirrors LP shape with
ADK's HttpAgent + AGENT_URL pattern.
- copilotkit-agent-config/route.ts (new) — same pattern.
- copilotkit-mcp-apps/route.ts — refreshed.
3. Frontend ports (ADK frontend brought to LP-verbatim where it had
drifted from the parity blitz state)
- tool-rendering family (4 demos): full re-port — WeatherCard,
FlightListCard, StockCard, D20Card, ReasoningBlock, CatchallRenderer,
suggestions, and the page wiring with all useRenderTool /
useDefaultRenderTool / reasoningMessage registrations.
- a2ui-fixed-schema, mcp-apps, multimodal: full frontend re-ports
with their _components/ Tailwind primitives.
- frontend-tools, frontend-tools-async, agent-config: ported LP's
component structure (separate Background, NotesCard with query_notes,
config-context-relay).
- shared-state-read, shared-state-read-write, readonly-state-agent-context:
ported LP's demo-layout + _components + suggestions. recipe-card.tsx
pulled directly from LP (one QA agent had adapted to Unicode glyphs
thinking ADK lacked lucide-react — it doesn't, after the parity blitz).
- shared-state-streaming, subagents, hitl-in-app: ported LP's
DocumentView / supervisor-activity / TicketsPanel structure.
hitl-in-app/page.tsx pulled directly from LP to keep the hyphenated
agent slug aligned with the renamed registry key.
- auth, hitl-in-chat: ported LP's SignInCard-first auth UX and the
time-picker Tailwind port.
- prebuilt-popup: pulled LP's main-content + suggestions split.
4. Test fixtures
- 30 tests/e2e/<slug>.spec.ts ported from LP, several overwriting
stale stubs (shared-state-streaming, subagents, auth, hitl-in-chat,
shared-state-read, agent-config).
- 30 qa/<slug>.md ported from LP with ADK env-var and registry
references substituted (GOOGLE_API_KEY, AGENT_URL, registry.py).
- QA3's byoc-hashbrown / byoc-json-render specs renamed to
declarative-hashbrown / declarative-json-render with internal
URL references substituted (the orchestrator pass had already
renamed the demo dirs + manifest entries).
Frontend changes from QA agents were filtered: kept where they ported
LP-verbatim into ADK, replaced with direct LP pulls where the agent
had made ADK-specific adaptations (one Unicode-glyph case, one
stale-registry-slug case).
Not touched per blitz rules: shared_chat.py, registry.py, manifest.yaml,
src/app/api/copilotkit/route.ts.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- open_gen_ui_agents.py: port LP's minimal + advanced system prompts
verbatim. Advanced prompt now tells Gemini to call
`Websandbox.connection.remote.<fn>` (matching the LP frontend's
websandbox bridge — the prior `window.sandbox.*` prompt produced UIs
that silently no-op'd) and includes the full sandbox-iframe restriction
set (no `<form>`, no `type="submit"`, addEventListener / keydown only),
CDN script guidance, and the return-shape contract.
- beautiful_chat_agent.py: add `manage_sales_todos`, `get_sales_todos`,
and `generate_a2ui` (mirrors `agents/main.py.generate_a2ui` — forced
Gemini tool call, full `_A2uiError` shape) so the Task Manager and
Sales Dashboard pills exercise their backend tools end-to-end. Drop
`schedule_meeting` — the frontend handles meeting scheduling via the
`scheduleTime` `useFrontendTool` HITL renderer.
- Copy LP's `tests/e2e/{open-gen-ui,open-gen-ui-advanced,beautiful-chat}.spec.ts`
and `qa/{open-gen-ui,open-gen-ui-advanced,beautiful-chat}.md` fixtures
into the ADK integration, retitled for Google ADK and adjusted for
ADK env-var names (`GOOGLE_API_KEY`, `AGENT_URL`).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The showcase framework directories better reflect their role as
integration examples rather than distributable packages.
Renames showcase/packages/ -> showcase/integrations/ and updates
the test docker-compose file reference accordingly.
Tyler Slaton