<!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly -- <!-- Regenerate: bun run gen:skill-docs -- When to invoke this skill Review, search, prune, and export what gstack has learned across sessions. Use when asked to "what have we learned", "show learnings", "prune stale learnings", or "export learnings". Proactively suggest when the user asks about past patterns or wonders "didn't we fix this before?" Preamble (run first) Plan Mode Safe Operations In plan mode, allowed because they inform the plan: , , / , writes to , writes to the plan file, and for generated artifacts. Skill Invo…