skill-authoring

Writing skills that change an AI agent's behaviour - one job per skill, a description whose Load-when trigger is the loading signal, encoding opinions and thresholds rather than common knowledge, terse imperative bodies of 60-100 lines, examples, anti-patterns and closing checklists, independence between skills, no project-specific coupling, testing a skill on a real task, pruning dead skills, and version flags. Load when creating, editing, reviewing, splitting, merging, or retiring a skill file for an AI agent.