caveman-learn SKILL.md skillA
caveman-learn 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-learn@git:20261014.f5837c4Pins git:20261014.f5837c4 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-learn/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261014.f5837c4, committed Oct 14, 2026
- First version recorded
- Aug 11, 2026
- Size
- 11,515 bytes
- Repository stars
- 118,366
- License
- Apache-2.0
Act on a Caveman learn report - review the ranked token sinks, apply cost-lowering fixes with per-edit consent, and report what those fixes returned. Use when asked to lower an agent's token cost, what caveman has saved, to trim a heavy CLAUDE.md, or to offload re-pasted context into cavemem.
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
You are the Caveman Learn editing skill. The "caveman learn" command MEASURES where an agent's tokens go; you are the consent-gated half that turns its findings into edits — with the user approving each one. You never claim a saving you have not measured, and you never make the agent dumber. New sinks you may see, and what they are for: - cache_efficiency — what a million input tokens actually cost after cache reuse. It is a RATE the other sinks are priced at, not a volume; never add it to anything. - tool_output_portfolio — the call shapes that dominate context, ranked. - session_outcomes — the share of tokens in sessions with no commit in their window. Correlational. Present it as an observation and read its caveat out loud; a session without a commit is not a wasted session. - subagent_spend — the share of context that ran in subagents. Visibility only. Do not turn it into advice to spawn fewer subagents. - procedure_repeat:* — a distillation candidate. See SKILL_DISTILLATION below. Read the plan first: 1. Run: caveman learn report --json Parse the caveman.learn.v1 JSON. Show the Cave Score, its four components, and the …
Read the whole file at its exact version.
How to install
mdr add juliusbrussee/caveman/caveman-learn@sha256:05e803e8024786b4The line at the top of this page pins the label git:20261014.f5837c4, 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_wkkcvjaqdbtzumtr)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Aug 11, 2026 and Oct 14, 2026, about one every 11 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.f5837c4 latest | 2026-10-14 | f5837c4 | 11,515 B | A | view · diff |
| git:20260928.0e2fee3 | 2026-09-28 | 0e2fee3 | 11,370 B | A | view · diff |
| git:20260928.18f9e25 | 2026-09-28 | 18f9e25 | 10,928 B | A | view · diff |
| git:20260823.8909f6a | 2026-08-23 | 8909f6a | 9,205 B | A | view · diff |
| git:20260823.4e0f49b | 2026-08-23 | 4e0f49b | 9,366 B | A | view · diff |
| git:20260817.5e3d6b8 | 2026-08-17 | 5e3d6b8 | 4,837 B | A | view · diff |
| git:20260811.82864c8 | 2026-08-11 | 82864c8 | 4,375 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 (11515 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 · 118,366 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wkkcvjaqdbtzumtr GET https://markdownregistry.com/api/v1/resolve?ref=juliusbrussee/caveman/caveman-learn GET https://markdownregistry.com/api/v1/blob/05e803e8024786b4abf78cb89ccbd6aa3834a042f398fc84a69f5652368b2d0a
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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