caveman

caveman is a skill for Claude Code from quay/ai-helpers. It costs 32 tokens per session (1,040 once invoked), scanned A, original, MIT.

A writing guide for keeping user-facing bug-triage comments and retrospective summaries short while leaving structured machine-readable data complete. Triage means assessing an issue and deciding what should happen next; a retrospective reviews completed work.

In plain words
What is it for?
Use it when writing issue comments and pull-request summaries, especially when they must meet a strict word limit or preserve exact errors, identifiers, and actions.
Why use it?
It removes filler, repetition, and vague wording from status updates without discarding required evidence or exact technical details.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the dev plugin — 16 skills, 1 command shipped together

Good fit Use it when writing issue comments and pull-request summaries, especially when they…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/quay/ai-helpers/caveman
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.

Any agent
npx skills add quay/ai-helpers --skill caveman
Clone the repo
git clone --depth 1 https://github.com/quay/ai-helpers

Made for: Claude Code.

Or install dev, the plugin that ships this one along with the rest of its 16 skills, 1 command.

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/quay/ai-helpers/caveman.svg)](https://agentmods.dev/skills/quay/ai-helpers/caveman)
Your own site
<a href="https://agentmods.dev/skills/quay/ai-helpers/caveman"><img src="https://agentmods.dev/badge/skills/quay/ai-helpers/caveman.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,040 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00032 $0.01040
Opus 5 $0.00016 $0.00520
Sonnet 5 $0.00006 $0.00208
Haiku 4.5 $0.00003 $0.00104

Measured yesterday against content hash 7f4d1e760287, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 yesterday.

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.

plugins/dev/skills/caveman/SKILL.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Caveman

Job: Make the text humans read short. Keep the structured data complete.

Humans read two things:

Agent Field humans read Must be short
Triage comment (issue comment) Yes — hard limit below
Retro summary (issue/PR comment) Yes — hard limit below

Everything else in the JSON is for machines and later agents. Do not shorten it to satisfy Caveman.

Hard rules (always)

  1. No greetings, thanks, apologies, or “I reviewed…” narration.
  2. No hedging: drop might, seems, looks like, possibly, I think, could be.
  3. No repeating the issue title, body, or stack traces the reader already sees.
  4. Prefer bullets over paragraphs. Prefer one clause over three.
  5. Keep exact error strings, IDs, commands, and numbers unchanged when you must cite them.
  6. Never drop not / never / only / except if that changes meaning.
  7. Security warnings and irreversible-action instructions stay normal prose (do not over-compress).

Triage: shorten comment only

Limit: ≤ 40 words. Prefer ≤ 2 short sentences or 2 bullets.

Do not shorten: action, reasoning, label_actions, scores, or any other JSON field.

Templates (use these shapes)

Sufficient:

Sufficient: <one-line why>. Next: <ready-to-code / waiting on X>.

Insufficient (ask one question):

Insufficient: need <one fact>.

<one specific question the reporter can answer>

Before → after

Before (~55 words):

Thanks for filing this! I've reviewed the issue and the linked logs. It looks like the failure might be related to the cache configuration. Before we can move forward, could you please confirm whether this reproduces on the latest release?

After (~16 words):

Insufficient: need confirmation this fails on latest release.

Does this still fail on the latest release?

Retro: shorten summary only

Limit: ≤ 80 words. Prefer ≤ 5 bullets.

Caveman owns summary length, tone, and presentation (bullets, which links to include, what to omit). Keep any mandatory retro-analysis notes that belong in summary (for example, skipped duplicates) — but do not retell proposal bodies.

Read the full file on GitHub · 122 lines

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. yesterday First seen · 122 lines · 32 tokens per session scan A 7f4d1e760287

Subscribe to this mod's changes

caveman is a skill published in the GitHub repository quay/ai-helpers (3 stars, last pushed 19d ago), licensed MIT. It adds 32 tokens to every session and 1,040 once invoked, about $0.0002 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 2026-09-04.

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