Opus 4.7 Migration, Part II: Shorter Prompts, Thicker CLAUDE.md — Pawel Huryn's Six Intent-First Moves

SP-175 covered Opus 4.7 hard specs. This is the workflow layer. Pawel Huryn argues intent is the new unlock. Two-layer CLAUDE.md, per-call effort toggle, batch questions, show-don't-forbid, kill stale scaffolding, review plans not diffs — plus Anthropic/OpenAI converging.

After Opus 4.7: How Your Prompt Playbook Needs to Change — Two Official Anthropic Best Practices in One Cheat Sheet

Anthropic released two Opus 4.7 best practices — a Claude Code guide and a full prompting docs page. 4.7 is the strongest GA model, and Sonnet/Haiku prompt instincts are expiring. One cheat sheet: three must-knows, effort ladder, 4.6→4.7 diffs, copy-paste snippets.