@joshualevi.ai: Save this for your next build. 1. llama_index: turn your documents into agents that actually answer, the backbone for real retrieval 2. fabric: a library of battle-tested AI prompts you run from the terminal, one command each 3. dspy: program your prompts instead of hand-tuning them, so your AI features stop breaking 4. graphrag: RAG that builds a knowledge graph first, Microsoft's take on private-data retrieval 5. vercel/ai: the TypeScript AI SDK from the Next.js team, ship streaming and tool calls in a few lines 6. gpt-crawler: crawl a whole website into clean knowledge files for your agent 7. files-to-prompt: flatten an entire codebase into one prompt with a single command This is the stack behind real AI apps. Which one are you adding first? #ai #claudecode #opensource #github #coding