Port the design spec and 17-task implementation plan from arb-scanner
(where the idea was born) to this dedicated repo. Paths in the plan
adjusted to treat this repo root as the skill root (no skills/kg-setup/
subdirectory). Implementation follows via subagent-driven-development.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>