- Built-in rules/ directory with 13 language layers + common + web (78 Markdown files)
- New 10-rules skill: progressive on-demand loading, zero waste
- 02-plan, 03-work, 04-review auto-trigger rule loading at entry points
- Users can add/remove languages and edit rules freely — plain Markdown, no config
- Token cost evaluation document
- 10 skills, 15 tools, 162 tests passing