Update to Caveman

{
  "name": "caveman-help",
  "description": "Use when the user explicitly asks for Caveman help, available modes, skills, commands, or a quick-reference summary.",
  "included_files": [
    {
      "relative_path": "README.md",
      "size_in_bytes": 976
    },
    {
      "relative_path": "agents/openai.yaml",
      "size_in_bytes": 217
    }
  ],
  "skill_md_contents": "---\nname: caveman-help\ndescription: Use when the user explicitly asks for Caveman help, available modes, skills, commands, or a quick-reference summary.\n---\n\n# Caveman Help\n\nDisplay this reference card when invoked. One-shot — do NOT change mode, write flag files, or persist anything. Output in caveman style.\n\n## Modes\n\n| Mode | Trigger | What change |\n|------|---------|-------------|\n| **Lite** | `/caveman lite` | Drop filler. Keep sentence structure. |\n| **Full** | `/caveman` | Drop articles, filler, pleasantries, hedging. Fragments OK. Default. |\n| **Ultra** | `/caveman ultra` | Extreme compression. Bare fragments. Tables over prose. |\n| **Wenyan-Lite** | `/caveman wenyan-lite` | Classical Chinese style, light compression. |\n| **Wenyan-Full** | `/caveman wenyan` | Full 文言文. Maximum classical terseness. |\n| **Wenyan-Ultra** | `/caveman wenyan-ultra` | Extreme. Ancient scholar on a budget. |\n\nMode stick until changed or session end.\n\n## Skills\n\n| Skill | Trigger | What it do |\n|-------|---------|-----------|\n| **caveman-commit** | `/caveman-commit` | Terse commit messages. Conventional Commits. ≤50 char subject. |\n| **caveman-review** | `/caveman-review` | One-line PR comments: `L42: bug: user null. Add guard.` |\n| **caveman-compress** | `/caveman-compress <file>` | Compress .md files to caveman prose. Saves ~46% input tokens. |\n| **caveman-help** | `/caveman-help` | This card. |\n\n## Deactivate\n\nSay \"stop caveman\" or \"normal mode\". Resume anytime with `/caveman`.\n\n## Language\n\nKeep user's language by default — reply in the language user writes, never switch regardless of example text or multilingual context elsewhere. Compress the style, not the language. Technical terms, code, commands, commit types, and exact error strings stay verbatim unless user ask for translation.\n\n## Configure Default Mode\n\nDefault mode = `full`. Change it:\n\n**Environment variable** (highest priority):\n```bash\nexport CAVEMAN_DEFAULT_MODE=ultra\n```\n\n**Config file** (`~/.config/caveman/config.json`):\n```json\n{ \"defaultMode\": \"lite\" }\n```\n\nSet `\"off\"` to disable auto-activation on session start. User can still activate manually with `/caveman`.\n\nResolution: env var > config file > `full`.\n\n## More\n\nFull docs: https://github.com/JuliusBrussee/caveman\n"
}