Upgrade a prose-only or weakly tooled Agent Skill into a harnessed skill with reusable scripts, on-demand references, assets, strict static validation, a drift manifest, and credible regression tests. Use when a skill repeatedly re-derives deterministic code, embeds large reference material or templates in SKILL.md, has dangling resource wiring, lacks meaningful tests or receipts, or needs to be made more repeatable and package-ready. This is for upgrading an existing skill; use a general skill-authoring workflow to create one from scratch.
2026-07-07