Tools for listing, creating, improving and synchronising Claude Code skills. Skills are reusable instructions that teach the coding assistant how to handle particular tasks.

Use them to create a skill, improve an existing one, fix its activation, or synchronise skills.

They provide one place to manage these instructions and keep copies consistent.

skills — Skill for Claude Code by kochetkov-ma: Tools for listing, creating, improving and synchronising Claude Code…

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/kochetkov-ma/claude-brewcode/skills

Any agent

npx skills add kochetkov-ma/claude-brewcode --skill skills

Clone the repo

git clone --depth 1 https://github.com/kochetkov-ma/claude-brewcode

Made for: Claude Code.

Or install brewcode, the plugin that ships this one along with the rest of its 4 skills, 5 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/kochetkov-ma/claude-brewcode/skills.svg)](https://agentmods.dev/skills/kochetkov-ma/claude-brewcode/skills)

Your own site

<a href="https://agentmods.dev/skills/kochetkov-ma/claude-brewcode/skills"><img src="https://agentmods.dev/badge/skills/kochetkov-ma/claude-brewcode/skills.svg" alt="Measured on agentmods" height="20"></a>

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 5,335 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 2 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.

Model	Per session	Once invoked
Fable 5.1	$0.00029	$0.05335
Opus 5	$0.00015	$0.02668
Sonnet 5	$0.00006	$0.01067
Haiku 4.5	$0.00003	$0.00534

Measured 6d ago against content hash 3bcb6b3f2eb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

skills scanned grade C with 2 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 6d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/list-skills.sh, scripts/validate-skill.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf "$TMPDIR"

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

sh bash zsh ls cat stat mv rm cp mkdir df du curl wget python python3 node npm git echo grep sed awk find head tail chmod chown

brewcode/skills/skills/SKILL.md · 418 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

10 files 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.

6d ago First seen · 418 lines · 29 tokens per session scan C 3bcb6b3f2eb0

Subscribe to this mod's changes

skills is a skill published in the GitHub repository kochetkov-ma/claude-brewcode (31 stars, last pushed 8d ago), with no licence file. It adds 29 tokens to every session and 5,335 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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