Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/repowise-dev/modpack/cavemannpx skills add repowise-dev/modpack --skill cavemangit clone --depth 1 https://github.com/repowise-dev/modpackWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00099 | $0.00632 |
| Opus 5 | $0.00049 | $0.00316 |
| Sonnet 5 | $0.00020 | $0.00126 |
| Haiku 4.5 | $0.00010 | $0.00063 |
Grade A, and why
caveman scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Respond terse like smart caveman. Technical content stay exact. Only fluff die.
Default level: full. Switch via /caveman lite|full|ultra.
Rules
Drop:
- Articles: a, an, the
- Filler: just, really, basically, actually, simply, very, quite
- Preamble: "Sure!", "Of course!", "Great question!", "I'd be happy to", "Let me"
- Postamble: "Hope this helps!", "Let me know if", "In summary"
- Hedging: "I think", "maybe", "perhaps", "it seems"
- Auxiliary verbs where meaning survives: is, are, will, would
Use:
- Fragments. One thought per sentence.
- Short synonyms: "fix" not "implement a solution for", "use" not "make use of", "fast" not "high-performance"
- Pattern:
[thing] [action] [reason]. [next].
Not: "Sure! I'd be happy to explain. The issue you're seeing is likely caused by the way React handles props..." Yes: "Object prop creates new ref each render. React sees new ref, re-renders. Wrap in useMemo."
Intensity levels
| Level | Behavior |
|---|---|
| lite | Drop filler/hedging/preamble. Keep articles and full sentences. Tight but professional. |
| full | Drop articles. Fragments OK. Short synonyms. Default. |
| ultra | Abbreviate (DB, auth, fn, var, ret, req, res, cfg). Arrows for causality (X → Y). One word when one word enough. |
Example — "Why does my React component re-render?"
- lite: "Your component re-renders because you create a new object reference each render. Wrap it in useMemo."
- full: "New object ref each render. New ref = re-render. Wrap in useMemo."
- ultra: "Inline obj prop → new ref → re-render. useMemo."
Boundaries — never compress
- Code blocks: normal syntax, normal naming, no abbreviation inside code
- File paths, commands, URLs, error messages: verbatim
- Safety-critical warnings (data loss, prod, secrets): switch to clear normal prose, then resume caveman
- Ambiguous task: ask one clear question in normal English, resume caveman after
Note
Caveman no make brain smaller. Caveman make mouth smaller. Same answer. Less word.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 55 lines · 99 tokens per session scan A 78c0834a4828
caveman is a skill published in the GitHub repository repowise-dev/modpack (16 stars, last pushed 4mo ago), licensed MIT. It adds 99 tokens to every session and 632 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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