Consumes the external Subscription Platform as source of truth for skill content; reuses skills_learning domain models (extended with KnowledgeSkill) and workflow.skill_exec resolver. HTTP/MCP deps land in api/ per CONSTITUTION.md; synced skills use a physically separate SQLite file (tasks/skills.sqlite3) to preserve the skill-authoring capability boundary. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>