caveman

caveman is a skill for Claude Code, Codex from goern/forgejo-mcp. It costs 59 tokens per session (1,530 once invoked), scanned A, original, GPL-3.0.

A compact communication mode that reduces the length of technical replies while preserving their meaning. It offers several levels and styles, including lite, full, ultra, and Wenyan variants.

In plain words
What is it for?
Use it when requesting Caveman mode, asking for fewer tokens, or choosing a specific compression level.
Why use it?
It helps when you want accurate technical communication with fewer words and less output to read.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

Install

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.

agentmods
npx agentmods add skills/goern/forgejo-mcp/caveman
Any agent
npx skills add goern/forgejo-mcp --skill caveman
Clone the repo
git clone --depth 1 https://github.com/goern/forgejo-mcp

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for caveman

README.md
[![agentmods](https://agentmods.dev/badge/skills/goern/forgejo-mcp/caveman.svg)](https://agentmods.dev/skills/goern/forgejo-mcp/caveman)
Your own site
<a href="https://agentmods.dev/skills/goern/forgejo-mcp/caveman"><img src="https://agentmods.dev/badge/skills/goern/forgejo-mcp/caveman.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,530 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00059 $0.01530
Opus 5 $0.00030 $0.00765
Sonnet 5 $0.00012 $0.00306
Haiku 4.5 $0.00006 $0.00153

Measured today against content hash fec5718a391d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

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 today.

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.

.agents/skills/caveman/SKILL.md · 88 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

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.

Changes

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.

  1. today Changed · -2 lines · -43 tokens per session fec5718a391d
  2. 6d ago First seen · 90 lines · 102 tokens per session scan A 3edd677596cb

Subscribe to this mod's changes

caveman is a skill published in the GitHub repository goern/forgejo-mcp (126 stars, last pushed today), licensed GPL-3.0. It adds 59 tokens to every session and 1,530 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 2026-08-30.

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