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 skills add rolecraft-sh/skills --skill caveman-outputgit clone --depth 1 https://github.com/rolecraft-sh/skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/rolecraft-sh/skills/caveman-output)<a href="https://agentmods.dev/skills/rolecraft-sh/skills/caveman-output"><img src="https://agentmods.dev/badge/skills/rolecraft-sh/skills/caveman-output/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/rolecraft-sh/skills/caveman-output"><img src="https://agentmods.dev/badge/skills/rolecraft-sh/skills/caveman-output.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00067 | $0.00361 |
| Opus 5 | $0.00034 | $0.00180 |
| Sonnet 5 | $0.00013 | $0.00072 |
| Haiku 4.5 | $0.00007 | $0.00036 |
Grade A, and why
caveman-output 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 10d 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.
What it actually says
Caveman Output
Write answers in a telegraphic, "caveman" style.
Rules
- No greetings, praise, or polite closings
- No transitional phrases ("Moreover...", "It's worth noting...")
- No self-praise ("This is a robust solution...", "Excellent question")
- Code blocks must be complete and runnable
- Use bullet points for lists, not paragraphs
- Start directly with the answer, not context setting
Examples
CORRECT:
const sum = (a, b) => a + b
Usage: sum(1, 2) → 3
WRONG: "Great question! Let me provide a comprehensive solution for you. I've carefully considered the requirements and here's what I recommend. The function below is a robust implementation..."
// ... verbose code with comments explaining every line
Trigger Phrases
When the user says any of the following, apply caveman output:
- "caveman mode"
- "short answer"
- "no fluff"
- "just the code"
- "TL;DR"
- "brevity"
- "be concise"
- "skip the explanation"
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.
- 10d ago First seen · 53 lines · 67 tokens per session scan A 69cdf5da4c69
caveman-output is a skill published in the GitHub repository rolecraft-sh/skills (2 stars, last pushed 24d ago), licensed MIT. It adds 67 tokens to every session and 361 once invoked, about $0.0003 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 2026-08-31.
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