bear-new-skill

bear-new-skill is a skill for Claude Code from jtprogru/bear-skills. It costs 134 tokens per session (1,326 once invoked), scanned A, original, MIT.

A template-driven tool for creating a new reusable coding-agent skill in the bear-skills collection. It includes instructions, documentation, and a basic evaluation structure.

In plain words
What is it for?
Use it to decide whether a recurring task needs a skill, create the skill files, add domain documentation, and run the required checks.
Why use it?
It helps keep new skills consistent with the collection’s naming, trigger, documentation, and validation rules.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions AGENTS.md.

Part of the bear-skills plugin — 42 skills, 3 commands, 11 agents, 1 hook shipped together

Good fit Use it to decide whether a recurring task needs a skill, create the skill files, add domain documentation, and run the required checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jtprogru/bear-skills/bear-new-skill
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 jtprogru/bear-skills --skill bear-new-skill
Clone the repo
git clone --depth 1 https://github.com/jtprogru/bear-skills

Made for: Claude Code.

Or install bear-skills, the plugin that ships this one along with the rest of its 42 skills, 3 commands, 11 agents, 1 hook.

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 bear-new-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/jtprogru/bear-skills/bear-new-skill/github.svg)](https://agentmods.dev/skills/jtprogru/bear-skills/bear-new-skill)
Your own site
<a href="https://agentmods.dev/skills/jtprogru/bear-skills/bear-new-skill"><img src="https://agentmods.dev/badge/skills/jtprogru/bear-skills/bear-new-skill/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for bear-new-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/jtprogru/bear-skills/bear-new-skill"><img src="https://agentmods.dev/badge/skills/jtprogru/bear-skills/bear-new-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 134 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,326 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 $0.00134 $0.01326
Opus 5 $0.00067 $0.00663
Sonnet 5 $0.00027 $0.00265
Haiku 4.5 $0.00013 $0.00133

Measured 10d ago against content hash 45286f6fafc1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

bear-new-skill 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 10d ago.

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.

domains/bear/skills/bear-new-skill/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

bear-new-skill — Новый скилл по шаблону коллекции

Шаг 1. Проверь, что скилл нужен

Задай себе три вопроса и, если ответы не сходятся, скажи об этом прямо:

  • Задача действительно повторяется, или это разовый случай? Скилл на разовую задачу — мёртвый груз, конкурирующий за срабатывание.
  • Нет ли уже подходящего? Проверь bear-skills list. Расширить существующий обычно лучше, чем завести соседний: два похожих скилла делят триггеры и мешают друг другу.
  • Это скилл или правило? Правило — то, что действует всегда (rules/). Скилл — то, что запускается под задачу.

Шаг 2. Выбери домен и имя

Имя начинается с префикса домена: sre-, git-, content-, obsidian-, agentops-, code-, bear-. Имя каталога и name во фронтматтере совпадают — это проверяется тестом.

Если задача не ложится ни в один домен — обсуди с пользователем новый домен, не запихивай в ближайший.

Шаг 3. Напиши фронтматтер

---
name: <домен>-<имя>
description: >
  Что делает, одним-двумя предложениями. Используй, когда пользователь говорит
  «<фраза>», «<фраза>», «<фраза>». Для смежного случая — <другой-скилл>, не этот.
---

description — единственное, по чему модель решает, звать скилл или нет. Это самая важная часть файла.

Пусковые фразы бери те, которыми человек реально формулирует задачу, а не те, которыми ты бы её описал. «Под падает» — рабочий триггер, «диагностика неисправностей контейнеризованных приложений» — нет.

Проверь пересечения: bear-skills doctor покажет, если новый скилл делит триггер с существующим. При пересечении добавь в оба описания взаимные отсылки.

Шаг 4. Напиши тело

Структура, принятая в коллекции:

  1. Заголовок и одна фраза о цели
  2. Границы применимости — когда скилл не нужен, со ссылкой на подходящий
  3. Алгоритм по шагам, с командами там, где они есть
  4. Раздел «чего не делать»

Раздел про границы ставь рано: скилл, который знает, когда молчать, полезнее скилла, который берётся за всё.

Если скилл что-то сокращает или упрощает — обязателен раздел Auto-Clarity со ссылкой на ~/.claude/rules/agentops-auto-clarity.md.

Read the full file on GitHub · 105 lines

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. 10d ago First seen · 105 lines · 134 tokens per session scan A 45286f6fafc1

Subscribe to this mod's changes

bear-new-skill is a skill published in the GitHub repository jtprogru/bear-skills (1 stars, last pushed 22d ago), licensed MIT. It adds 134 tokens to every session and 1,326 once invoked, about $0.0007 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 2026-08-31.

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