A detailed personal workflow for integrating multiple AI tools into Rails development while maintaining strict engineering gates. The setup uses Perplexity for research, Claude Code for long-context repo work, Codex for focused execution, gbrain for private persistent memory, gstack for repeatable workflows, CodeRabbit for PR review, Copilot for inline and delegated tasks, and Superconductor for parallel agents with isolated worktrees. Hard rules include never merging AI-generated code without CI green and reviewer sign-off, keeping private data out of prompts, and treating model changes as deploys. A case study covers the Uploadcare Ruby and Rails gem v5 rewrite, showing how AI accelerated review and documentation while human gates and tests remained mandatory. The post emphasizes measuring useful metrics like merge time and eval failures rather than percentage of code written by AI.
