OpenSpec: a spec layer that actually fits real codebases #OpenSpec #SpecDrivenDevelopment #AICoding

Your AI assistant is powerful and unpredictable, because your requirements only ever lived in chat history. OpenSpec is a lightweight fix: one npm install, one folder of markdown in your repo, and you and the agent agree on what to build before any code exists. This is the full walkthrough — the delta-spec idea that lets you skip documenting your whole codebase, the artifact dependency graph, every command in the core loop (explore, propose, apply, update, sync, archive), and a change built end to end. Then the honest part: a published head-to-head found OpenSpec asked 2.5x more questions and resolved 3 of 3 critical spec gaps correctly — while taking twice as long, costing three times as much, and writing 1.6x the code. By the end you'll know exactly which changes are worth the ceremony. #OpenSpec #SpecDrivenDevelopment #AICoding #ClaudeCode #SoftwareEngineering #DevTools