Skills

• Progressive disclosure every skill’s name + one-line description sits in the system prompt at near-zero token cost; the full instructions body only loads when the model calls use_skill, keeping a large skill library cheap to carry
• Shared by chat and Orchestrator one skill library, ~/.coder/skills/<name>/SKILL.md, available to the interactive chat agent and every Orchestrator stage (PM, builders, reviewer) alike
• Managed in the Prompts panel a “Skills” section lists every skill with its description, alongside a create (+) button and per-skill delete; clicking a skill opens its SKILL.md for editing like any other file
• Just markdown a skill is a folder with a SKILL.md (YAML frontmatter for name/description, then free-form instructions below); no code or registration required to add one

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Layout

~/.coder/skills/
  my-skill/
    SKILL.md        # frontmatter: name, description — then free-form instructions
    reference.md     # optional bundled reference file
    templates/
      foo.md          # bundled files can be nested in subfolders