Make the always-on / subscribed / project-rule distinction explicit at the
authoring surface so it can't silently regress (for this operator or other
users). Previously the tools said only 'cross-project rulebook rule' and a
bare 'subscribe a project' — nothing steered project-specific detail away
from shared rulebooks, which is how a Scribe-pinned rule ends up binding
every family project.
Principle encoded in 5 places: a rule's home is chosen by WHO it should bind,
and both rulebook tiers are SHARED so their rules stay general — they differ
in reach (all projects vs opt-in by theme), not generality. Project-specific
detail goes in create_project_rule.
- server.py MCP instructions: add the 3-tier authoring principle
- create_rule / create_rulebook / create_project_rule / subscribe_* docstrings
- using-scribe SKILL.md: a 'Where a new rule goes' note for the pull path
Refs #755
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>