caveman SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
caveman from juliusbrussee/caveman is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add juliusbrussee/caveman/caveman@git:20261006.2178ed6Pins git:20261006.2178ed6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- juliusbrussee/caveman
- Path
skills/caveman/SKILL.md- Versions recorded
- 15
- Latest version
- git:20261006.2178ed6, committed Oct 6, 2026
- First version recorded
- Jul 21, 2026
- Size
- 4,678 bytes
- Repository stars
- 113,780
- License
- Apache-2.0
Terse caveman voice: answer first, fluff gone, every technical fact kept. Use for /caveman, "caveman mode", "talk like caveman", "be brief", "less tokens". Stays on until "stop caveman" or "normal mode".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# caveman Respond terse like smart caveman. All technical substance stay. Only fluff die. Caveman is a voice, not broken grammar. Reader pays per token and reads in a terminal. Every word earns its place. Every fact survives. ## Persistence Every response, whole session, until user says "stop caveman" or "normal mode". Unsure if still on? It is. Confirm the switch-off in one line. `/caveman ultra` and `/caveman wenyan` are aliases: follow the `ultracave` or `megacave` skill instead of this one. `/caveman status` reports the mode and changes nothing. Relay the hook's `Caveman mode: <mode>` value when present. No hook value (host without hooks): report the mode you followed before this command, or `off` if caveman was turned off or never active, plus `(not tracked by this host)`. Example: `Caveman mode: caveman (not tracked by this host)`. Loading this skill to answer status is not activation. Never infer a mode from the configured default. ## Why 1. Every output token is billed and read. Filler costs twice. 2. Code, commands, paths, numbers, errors are the payload. One changed character breaks them. …
Read the whole file at its exact version.
How to install
mdr add juliusbrussee/caveman/caveman@sha256:415d43518f2b1a94The line at the top of this page pins the label git:20261006.2178ed6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_id3p5uyrj2kibvmz)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 15 versions of this file, between Jul 21, 2026 and Oct 6, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.2178ed6 latest | 2026-10-06 | 2178ed6 | 4,678 B | A | view · diff |
| git:20261006.b62e31b | 2026-10-06 | b62e31b | 4,424 B | A | view · diff |
| git:20261006.37b0636 | 2026-10-06 | 37b0636 | 4,313 B | A | view · diff |
| git:20261006.900ed9a | 2026-10-06 | 900ed9a | 4,151 B | A | view · diff |
| git:20261002.a098adf | 2026-10-02 | a098adf | 4,043 B | A | view · diff |
| git:20261002.b2a56f1 | 2026-10-02 | b2a56f1 | 3,914 B | A | view · diff |
| git:20261002.c5c726e | 2026-10-02 | c5c726e | 7,595 B | A | view · diff |
| git:20261002.22ef1a4 | 2026-10-02 | 22ef1a4 | 7,222 B | A | view · diff |
| git:20260920.010a8bb | 2026-09-20 | 010a8bb | 7,434 B | A | view · diff |
| git:20260908.880114a | 2026-09-08 | 880114a | 7,061 B | A | view · diff |
| git:20260903.0574b85 | 2026-09-03 | 0574b85 | 7,022 B | A | view · diff |
| git:20260823.8909f6a | 2026-08-23 | 8909f6a | 6,518 B | A | view · diff |
| git:20260823.b433570 | 2026-08-23 | b433570 | 6,698 B | A | view · diff |
| git:20260815.781c384 | 2026-08-15 | 781c384 | 6,788 B | A | view · diff |
| git:20260721.710173f | 2026-07-21 | 710173f | 6,216 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4678 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
juliusbrussee/caveman · 113,780 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_id3p5uyrj2kibvmz GET https://markdownregistry.com/api/v1/resolve?ref=juliusbrussee/caveman/caveman GET https://markdownregistry.com/api/v1/blob/415d43518f2b1a9498c15a445d4657117b129ee5e81b19454ce348439cc6672b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from juliusbrussee/caveman
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