Template: layer-2 overlay mirror + layer-3 projects with fictional construction-company lessons incl. the full promotion chain (2 projects -> org standard -> anonymized community distillate). Claude adapter builds self-contained agent-skill bundles with the section-3 contribution behaviour and the canonical manual trigger prompt. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PDKeXvpT6tENSvyQGLV1Uq