Archetype_Skill_Authoring

Step 4 of the Archetype Builder pipeline. Manually craft the skill stack for the new archetype. Each skill is a system_skill artifact created via ARTIFACT_Update with strict structure: top-level description, numbered steps with lettered substeps, must-rules block, pinned schema artifactIds (concrete GUIDs from schemaDesign), parameters block with documented defaults, hard gates for inviolables, audit-trail fields, failure modes. Bypasses SKILL_ArtifactStudio entirely — that tool produces watered-down output. Skills are then registered via SKILL_Update op=add (default isListed=false). Cross-skill handoffs are explicit (skill A's outputs match skill B's whenToLoad triggers). After all skills register, advance brief.status from 'app_triage' to 'skills_authored'. Inviolables that can't be encoded mechanically at skill layer get pushed to DNA sacredValues during DNA Authoring.