koda-skill-maker

koda-skill-maker is a skill for Claude Code, Codex from XCode-NLP/KodaSkills. It costs 40 tokens per session (1,151 once invoked), scanned A, original, MIT.

A guide for creating new skills for AI agents using the agentskills.io format.

In plain words
What is it for?
Defining a skill, drafting its instructions, creating test prompts, evaluating results, and improving the skill through revisions.
Why use it?
It provides a process for turning a repeated type of work into a documented, testable skill.

Skill for Claude CodeCodex

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/xcode-nlp/kodaskills/koda-skill-maker
Any agent
npx skills add XCode-NLP/KodaSkills --skill koda-skill-maker
Clone the repo
git clone --depth 1 https://github.com/XCode-NLP/KodaSkills

Made for: Claude Code, Codex.

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 koda-skill-maker

README.md
[![agentmods](https://agentmods.dev/badge/skills/xcode-nlp/kodaskills/koda-skill-maker.svg)](https://agentmods.dev/skills/xcode-nlp/kodaskills/koda-skill-maker)
Your own site
<a href="https://agentmods.dev/skills/xcode-nlp/kodaskills/koda-skill-maker"><img src="https://agentmods.dev/badge/skills/xcode-nlp/kodaskills/koda-skill-maker.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,151 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00040 $0.01151
Opus 5 $0.00020 $0.00575
Sonnet 5 $0.00008 $0.00230
Haiku 4.5 $0.00004 $0.00115

Measured 5d ago against content hash 2ae17917e745, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

koda-skill-maker 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 5d 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.

skills/koda-skill-maker/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Создание агентского навыка

Мета-навык для создания новых навыков агентов, соответствующих открытому стандарту agentskills.io.

Создание навыка

На высоком уровне процесс выглядит так:

  1. Определить, что должен делать навык и примерно как он должен это делать.
  2. Написать черновик навыка.
  3. Создать несколько тестовых промптов и опровобовать их с использованием навыка.
  4. Помочь пользователю оценить результаты как качественно, так и количественно.
  5. Переписать навык на основе отзывов пользователя (а также при обнаружении явных недостатков в количественных тестах).
  6. Повторять до достижения удовлетворенности.
  7. Расширить набор тестов и попробовать снова на большем масштабе.

Применение навыка

Твоя задача при использовании этого навыка - понять, на каком этапе находится пользователь, и помочь ему продвинуться дальше. Например, если пользователь говорит: «Я хочу сделать навык для X», вы помогаете уточнить детали, пишете черновик, создаете тесты, определяете критерии оценки и запускаете цикл.

Если у пользователя уже есть черновик, можно сразу переходить к этапу оценки и итераций.

Будьте гибкими: если пользователь скажет «Мне не нужны сложные оценки, просто посмотри на глаз», следуйте его пожеланию.

После завершения работы над навыком можно запустить оптимизатор описания (отдельный скрипт) для улучшения точности срабатывания навыка.

Общение с пользователем

Этим инструментом могут пользоваться люди с разным уровнем технической подготовки.

Следите за контекстом, чтобы выбрать правильный тон:

  • Термины «оценка» (evaluation) и «бенчмарк» допустимы, но на грани.
  • Для «JSON» и «ассершн» (assertion) убедись, что пользователь понимает их значение, прежде чем использовать без объяснений.

Кратко поясняй термины, если сомневаешься.

Создание навыка

Определение намерений

Начни с понимания целей пользователя. Возможно, в истории чата уже есть рабочий процесс, который нужно превратить в навык. Извлеки из контекста: используемые инструменты, последовательность шагов, исправления пользователя, форматы ввода/вывода.

Read the full file on GitHub · 110 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. 5d ago First seen · 110 lines · 40 tokens per session scan A 2ae17917e745

Subscribe to this mod's changes

koda-skill-maker is a skill published in the GitHub repository XCode-NLP/KodaSkills (19 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 1,151 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 2026-08-30.

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