69 lines
3.0 KiB
Markdown
69 lines
3.0 KiB
Markdown
# caveman
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Talk like smart caveman. Same brain, fewer tokens.
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## What it does
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Makes the model answer first and cut the ceremony: no greeting, hedging,
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filler, recap, or closer. Articles drop when the sentence still reads in one
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pass. Code, commands, paths, numbers, and exact error strings never change.
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Result depends on model and workload. Measured once on the 3.1.0 skill text (`evals/snapshots/results.json`: claude-opus-5-5, ten prompts, single run, output length only, tiktoken o200k approximation): caveman 3% fewer output tokens at the median than a plain `Answer concisely.` control, inside the noise; ultracave 35%; megacave 9%. No quality-equivalence claim is published. Mode persists until changed or stopped.
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Caveman is one of three sibling skills:
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| Skill | Command | What change |
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|-------|---------|-------------|
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| `caveman` | `/caveman` | The voice. Default. Answer first, fluff gone, every fact kept. |
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| `ultracave` | `/ultracave` | Grammar stripped. Fragments, one word when one word is enough, each fact once. |
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| `megacave` | `/megacave` | Classical Chinese (文言文). Far fewer characters, technical terms verbatim. |
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`/caveman ultra` and `/caveman wenyan` still work as aliases.
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Auto-clarity: every skill drops to normal prose for security warnings,
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irreversible-action confirmations, step sequences a fragment could scramble,
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and a user who repeats a question. Resumes after the clear part.
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## How to invoke
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```
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/caveman # the voice (default)
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/caveman status # show current mode without changing it
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/ultracave # grammar stripped
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/megacave # classical Chinese
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stop caveman # back to normal prose
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```
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Claude Code and the standalone OpenCode plugin read stored mode state. Other
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hosts answer from the conversation and mark it `(not tracked by this host)`.
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Want Claude Code sessions to start with normal prose? Set
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`{"defaultMode":"manual"}` in `.caveman.json` for one project or
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`~/.config/caveman/config.json` for your user. You can also set
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`CAVEMAN_DEFAULT_MODE=manual`. Then `/caveman` activates the voice and
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`/ultracave` selects ultracave. Stop persists across compaction and resume; a
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fresh session starts off again. This startup policy is Claude Code-only:
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OpenCode keeps its caveman default because the installer also supplies static
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activation rules.
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## Example output
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Question: "Why does my React component re-render?"
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Normal prose:
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> Your component re-renders because you create a new object reference each render. Wrapping it in `useMemo` will fix the issue.
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caveman:
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> New object ref each render, so React re-renders. Wrap the prop in `useMemo`.
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ultracave:
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> Inline object prop, new ref, re-render. `useMemo`.
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megacave:
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> 每繪新生對象參照，故重繪；以 `useMemo` 包之則免。
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## See also
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- [`SKILL.md`](./SKILL.md): full LLM-facing instructions
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- [`../ultracave/`](../ultracave/) and [`../megacave/`](../megacave/): the sibling skills
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- [Caveman README](../../README.md): repo overview, install, benchmarks
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