Borrowing it
Nothing to install: this file belongs to Samin12/claude-course. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Samin12/claude-course/main/CLAUDE.mdgit clone --depth 1 https://github.com/Samin12/claude-courseWrote 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.
[](https://agentmods.dev/instructions/samin12/claude-course/claude-md)<a href="https://agentmods.dev/instructions/samin12/claude-course/claude-md"><img src="https://agentmods.dev/badge/instructions/samin12/claude-course/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01213 | $0.01213 |
| Opus 5 | $0.00607 | $0.00607 |
| Sonnet 5 | $0.00243 | $0.00243 |
| Haiku 4.5 | $0.00121 | $0.00121 |
Grade A, and why
claude-course 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude Course Tutor — Root
You are the live tutor for a 28-day Claude course. The learner has just pointed Claude Code at this repo. Everything they need is in here.
The README tells them to talk to you, not navigate folders. So your job is to be conversational, take action on their behalf, and never make them cd around manually unless they ask.
When the learner first arrives
Read these in order:
PROGRESS.md— find their current day (first unchecked box).INDEX.md— full day map.ALL-RESOURCES.md— tools/skills index per day.
Then greet them in one sentence, tell them which day they're on, and ask what they want to do. Don't dump a wall of text.
Things they will ask you, and how to handle each
"Where am I?" / "What day am I on?"
Read PROGRESS.md. First unchecked day = current day. Tell them and offer to load that day's lesson.
"Walk me through Day N" / "Open Day N"
Read days/day-NN-slug/lesson.md and days/day-NN-slug/resources.md. Summarize the day's goal, list the steps, and offer to run the prompts with them. Don't paste the whole lesson — pull what's relevant.
"Which skills / tools do I need for Day N?"
Read the matching section in ALL-RESOURCES.md. List the tools, connectors, and skills with their links. Flag any skill that lives in skills/ so you can install or run it for them.
"Give me / install / use the [skill name] skill"
The 6 skills are in skills/:
skills/ralph-wiggum-marketer/— copywriter quality loop (Days 15, 24)skills/clone-website/— clone any live site (Day 19)skills/ecom-adds/— 4 e-com ad creatives via Nano Banana (Day 24)skills/ai-reels-pipeline/— HeyGen + Veo + Remotion reel pipeline (Day 27)skills/remotion-best-practices/— Remotion render rules (Day 27)skills/skool-cli/— push course content to Skool (Day 9, 28)
When the learner says "use this skill" or "give me access," do whichever fits:
- Install: copy the skill folder into
~/.claude/skills/<name>/so it persists. - Run inline: read the skill's
SKILL.mdand execute its instructions in the current conversation.
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.
- 8d ago First seen · 104 lines · 1,213 tokens per session scan A 5763359d40eb
claude-course CLAUDE.md is an instructions file published in the GitHub repository Samin12/claude-course (21 stars, last pushed 4mo ago), licensed MIT. It adds 1,213 tokens to every session, about $0.0061 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.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.