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claude-code-training: Instructions file for Claude Code

CLAUDE.md

claude-code-training CLAUDE.md is an instructions file for Claude Code from kousen/claude-code-training. It costs 1,367 tokens per session, scanned A, a copy of claude-code-training AGENTS.md, MIT.

A set of project instructions for creating a training course that teaches professional developers how to use Claude Code. It covers course materials, shared rules, and sample projects in several programming languages.

In plain words
What is it for?
It helps create slides, lab exercises, instructor notes, and sample applications for hands-on Claude Code training.
Why use it?
It gives contributors a consistent structure and standards for building the course, while allowing Claude Code and other coding tools to use shared guidance.

Instructions file for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is kousen/claude-code-training's own configuration. It tells Claude Code how to work on claude-code-training itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-code-training configures →

not rated 343repo changed 1mo ago A scan 1,367 tokens copy · 88% MIT
View source ↗ kousen/claude-code-training
Reuse

Borrowing it

Nothing to install: this file belongs to kousen/claude-code-training. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/kousen/claude-code-training/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/kousen/claude-code-training

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 1,367 This file is loaded in full into every session.
When invoked 1,367 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 88% copy Near-identical to another mod 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 $0.01367 $0.01367
Opus 5.5 $0.00547 $0.00547
Sonnet 5.5 $0.00273 $0.00273
Haiku 4.5 $0.00137 $0.00137

Measured 1mo ago against content hash 7e1614e1d68e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-training CLAUDE.md 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 1mo 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.

Origin

This is a copy

88% identical to claude-code-training AGENTS.md — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Training Course Development

This project contains comprehensive training materials for teaching Claude Code to professional software developers. The course emphasizes practical, hands-on learning with real-world scenarios.

Cross-tool conventions

Claude Code reads AGENTS.md (the convention used by Codex and other tools) only when a project has no CLAUDE.md (since 2.1.277). This repo has both, so to pick up shared cross-tool conventions in this repo, this file imports it explicitly:

@AGENTS.md

This is the recommended bridge pattern when a project needs to expose the same guidance to both Claude Code and AGENTS.md-aware tools without duplicating content.

Project Structure & Standards

Core Course Materials

  • slides.md: Main Slidev presentation with progressive learning path
  • lab_handout.md: Six progressive hands-on labs (Lab 0-6) for students
  • instructor-guide.md: Detailed instructor guidance with specific demo scenarios
  • exercises/: Collection of real-world sample projects across multiple languages

Sample Projects Architecture

  • Python Projects:
    • weather-app: Clean Flask application for feature addition exercises
    • flask-api: Intentionally poorly-written API for refactoring demonstrations
  • JavaScript/TypeScript:
    • lyrics-trainer: Interactive web app with TypeScript and comprehensive test suite
  • Java Projects:
    • certificate-service: Modern Spring Boot application with PDF generation
    • shopping-service: Legacy Grails/Groovy application for modernization exercises

Skills and Custom Commands Integration

  • custom-commands.md: Skills-first walkthrough with a backwards-compat callout for .claude/commands/
  • skills/: Ready-to-copy skill directories migrated from the older command form. Each demonstrates a different frontmatter capability (paths, allowed-tools, context: fork, disable-model-invocation, $ARGUMENTS).
  • commands/: One legacy .claude/commands/ example (docs.md) preserved so students can compare old and new forms.
  • skills-and-plugins/: Larger teaching-library skills used during Lab 6 (api-documentation-skill, spring-boot-skill, security-review-skill, plus a plugin example).
  • Skills cover Java modernization, Spring scaffolding, security reviews, documentation generation, and onboarding automation.

Read the full file on GitHub · 120 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. 1mo ago Changed · +23 tokens per session 7e1614e1d68e
  2. 2mo ago First seen · 120 lines · 1,344 tokens per session scan A e47ef0451c94

Subscribe to this mod's changes

claude-code-training CLAUDE.md is an instructions file published in the GitHub repository kousen/claude-code-training (343 stars, last pushed 2d ago), licensed MIT. It adds 1,367 tokens to every session, about $0.0055 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to claude-code-training AGENTS.md, differing in 8 lines, and is treated as a copy.

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