Framework-Fit Decision Tree at Project Kickoff · SOP (ENHANCE overlay) Overlay posture: this is the capstone Phase-D skill — the most-cited entry at any project kickoff. It decides which layer(s) you need and which framework owns each layer . It does not teach any framework's API; for that, descend to the per-framework SOPs ( , , , , , , ). Every load-bearing claim carries an inline source tag resolving in . Neutrality note: vendor pages each claim the center of the universe (LangChain: "use LangGraph for production"; LlamaIndex: "the document agent platform"; Dify: "scaffolding is the bottle…