Why every framework is the same thirty lines — and what that means for buy-vs-build — step 8 of 9

Write recommend_framework(project) that takes a project profile (dict) and returns a string — one of:

• "framework-free"
• "vercel-ai-sdk"
• "langgraph"
• "crewai"

Each project has:

• team_size: int
• language: "python", "typescript", or "both"
• needs_streaming: bool
• needs_durable_state: bool
• time_to_first_demo_days: int

Apply the rules in this exact order (first match wins):

1. framework-free when the team is small AND the deadline is short: team_size <= 2 AND time_to_first_demo_days <= 14. Prototypes don't earn the framework tax.
2. vercel-ai-sdk when streaming is required AND the stack is TypeScript-compatible: needs_streaming AND language in ("typescript", "both").
3. langgraph when state must persist across restarts AND the stack is Python-compatible: needs_durable_state AND language in ("python", "both").
4. Otherwise → crewai (multi-agent default when no other rule fires).

Two projects run. Expected output:

Solo MVP:        framework-free
Research agent:  langgraph