TemplatesReal-world Examples

Levee User Research

A full-screen AI levee interface that guides users through building a complete user research plan and interview guide with lock-based progression.

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Problems solved

Technical challenges this implementation handles out of the box.

Products and workflows this pattern is designed to support.

Requirements, wiring steps, and what this pattern adds to your project.

Pick how you want to pull this pattern in. Then wire env vars and routes the same way.

1
Download → Next.js app
Use Download → Next.js app in the preview toolbar. You get a zip scaffold (Pro downloads rewrite preview `/view/.../api/*` paths to `/api/*` automatically).
2
Extract the zip and install dependencies
Unzip the archive, then run `pnpm install` (or npm / yarn) in the project folder.
3
Fill .env.local
The download includes .env.local placeholders when needed. Add real values for: OPENAI_API_KEY.
4
Customize the agent and tool files
Adapt prompts, tools, and stop conditions in the generated project for your product.
5
Run the app and open the pattern route
Run `pnpm dev`, open the setup/checklist page if present, then navigate to the generated pattern route and verify responses.

AI SDK APIs

useChatDefaultChatTransporttoolToolLoopAgenthasToolCallstepCountIscreateUIMessageStream

Providers

OpenAI

External services

Upstash

21 files

17 total

npm packages

AISDKUpstashlucide-reactNext.jsReactsonnerZod

Registry components

badgebuttoncheckboxemptyinputresizablescroll-areaselectseparatortextarea

lib/stages.ts
Stage configuration array defining 4 stages (Research Context form, Research Questions QA, Interview Guide QA, Research Plan Synthesis). Each stage has lock items, initial inputs, agent instructions, and tool sets.
ai/levee-stream-config.ts
Builds streamText config per stage mode. Contains system prompt construction with mode-specific rules (form, chat, synthesis), tool set selection, and stop conditions. Central orchestration logic.
levee/route.ts
Streaming API endpoint. Validates with Zod, calls buildStreamConfig, uses prepareStep to force evaluateLock after tool calls, streams lock updates via onStepFinish, and generates synthesis document on completeStage.