Borrowing it
Nothing to install: this file belongs to devRonPark/kakao-playmcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/devRonPark/kakao-playmcp/master/.agents/skills/caveman-stats/SKILL.mdgit clone --depth 1 https://github.com/devRonPark/kakao-playmcpWrote 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/devronpark/kakao-playmcp/caveman-stats)<a href="https://agentmods.dev/skills/devronpark/kakao-playmcp/caveman-stats"><img src="https://agentmods.dev/badge/skills/devronpark/kakao-playmcp/caveman-stats/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/devronpark/kakao-playmcp/caveman-stats"><img src="https://agentmods.dev/badge/skills/devronpark/kakao-playmcp/caveman-stats.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 | $0.00060 | $0.00142 |
| Opus 5 | $0.00030 | $0.00071 |
| Sonnet 5 | $0.00012 | $0.00028 |
| Haiku 4.5 | $0.00006 | $0.00014 |
Grade A, and why
caveman-stats 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 9d 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.
This is a copy
100% identical to caveman-stats — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
This skill is delivered by hooks/caveman-stats.js (read by hooks/caveman-mode-tracker.js on /caveman-stats). The model does not need to do anything when this skill fires — the hook returns decision: "block" with the formatted stats as the reason. The user sees the numbers immediately.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 11 lines · 60 tokens per session scan A b9e49e46ede9
caveman-stats is a skill published in the GitHub repository devRonPark/kakao-playmcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 60 tokens to every session and 142 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to caveman-stats, differing in 0 lines, and is treated as a copy.
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