Header, global constraints (confidentiality, read-only by default, nothing
invented, inferred units), the five real-world inputs no happy-path test
exercises (AutoCAD text codes, Cyrillic look-alike tags, repeated tags,
double-drawn pipe, a layout whose INSUNITS lies), file structure, the
interface block, execution with the worktree fast-forward rule, and the merge
notes. Task sections are drafted next.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
