QA: CLI Start — LangGraph (Python)

Prerequisites

• Dashboard host accessible; the cli-start cell is an informational command cell (no /demos/cli-start/ route)
• Local machine with Node.js 18+, npm 9+, and Python 3.11+ available; network access to the npm registry and GitHub
• Canonical starter for comparison: showcase/integrations/langgraph-python/ in the CopilotKit repo

Test Steps

1. Dashboard Cell

• Open the LangGraph (Python) provider view on the dashboard; locate the "CLI Start Command" cell
• Verify the cell displays the exact command npx copilotkit@latest init --framework langgraph-python
• If a copy-to-clipboard button is present, click it; verify clipboard contents equal the command above (paste into a text editor to confirm)

2. Scaffold a Fresh Project

• In a fresh, empty directory, run npx copilotkit@latest init --framework langgraph-python
• Verify the CLI completes without errors and scaffolds a project tree that matches the canonical starter at showcase/integrations/langgraph-python/ (same top-level files: package.json, next.config.ts, langgraph.json, showcase.json, tsconfig.json, postcss.config.mjs, Dockerfile, entrypoint.sh, src/)
• Verify package.json references @copilotkit/* at version 2.0.0 or newer (matches copilotkit_version in the provider manifest)

3. Install + Boot

• Run npm install in the scaffolded directory; verify it completes with no error-level output
• Start the Next.js dev server per the scaffolded project's README / package.json dev script (typically npm run dev); verify it binds and logs a local URL (e.g. http://localhost:3000)
• Start the LangGraph backend per the scaffolded project's instructions (typically langgraph dev using langgraph.json); verify it binds without error
• Open the local URL in a browser; verify the starter demo renders (the "Sales Dashboard" surface per the manifest starter.name) and a basic chat round-trip works

4. Error Handling

• Re-run the CLI in a non-empty directory; verify it either refuses or prompts before overwriting (does not silently clobber)
• Verify the scaffolded project has no lockfile merge conflicts and no unresolved peer-dependency errors in npm install output

Expected Results

• CLI command copies cleanly and runs without interactive blockers (aside from any documented prompts)
• Scaffolded tree matches the canonical starter shape
• npm install completes without error; dev server + LangGraph backend boot; starter demo is interactive