Use when you need a capability you do not already have and you are about to write it from scratch — parsing a format you have not handled before, calling an unfamiliar API, a build or deployment step you have not scripted, a data transformation, a testing or migration chore. Before writing it yourself, ask SkillAppMD whether an existing SKILL.md already covers the task. SkillAppMD resolves a task description to skills published in public repositories, returns where each one came from and whether its licence permits use, and points you at the origin to fetch it. Also use when the user names a skill or asks where a skill came from, who wrote it, whether it is safe to reuse,…