Claude Code — Manual & Command Reference
This article was created with AI support and editorially curated by Lukas Geiger.
We have been working daily with Anthropic Claude Code for weeks — the CLI tool that brings the AI assistant Claude to terminal, IDE and editor. Much of this is documented on official English pages, but a consolidated German reference is missing. We created one ourselves and are releasing a first version for download today.
What’s included
Two complementary documents, each in German and English, plus a slide series on a frequently underestimated topic:
Command Reference — all Slash Commands, flags, hooks and configuration keys at a glance, with short descriptions and examples. For quick reference while working.
Manual — a beginner’s guide: installation, configuration, first productive workflows, memory system, MCP server integration, hooks, skills and the most important pitfalls. Designed for anyone who wants more than the first five minutes of the onboarding page.
Filesystem Control (Slides) — a compact presentation on where Claude Code is actually allowed to read and write: working directories, access rights, MCP server scope, the differences between global and project-specific configuration. This topic regularly leads to misunderstandings (“Why can’t Claude see my file?”), and the answer almost always has to do with filesystem boundaries. Available as PDF and as editable PowerPoint file.
Platform note: The current version of the slides shows concrete paths only for Windows (
C:\Program Files\ClaudeCode\CLAUDE.md,C:\Users\<name>\.claude\). The platform-neutral tilde notation~/.claude/also works on macOS and Linux, but the complete paths for Managed Scope and User Home will be added in upcoming versions. An English version is also planned for the next update. The manual itself is less Windows-centric — installation (winget/Homebrew/npm/curl) and MCP desktop config paths already cover Windows and macOS — but a systematic Linux section and WSL hints (Windows Subsystem for Linux) are still missing and will also come with the next update. The Command Reference itself is not affected — Slash Commands and CLI flags work identically on all three platforms. If you’re using Claude Code on macOS, Linux, or under WSL and want to share your own path experience, we’d love to hear from you.
Work in Progress
Important: This version is an interim state. We’re publishing it because we believe that even an incomplete German reference is more valuable than none at all — but it’s a work in progress. Chapters will be expanded, examples refined, errors corrected. If anything stands out to you, write us (see contact) — we’ll incorporate it and credit the source.
All three documents are under CC BY 4.0 and may be freely shared, adopted and adapted.
Image credits: The dungeon motif (“Claude Code — The Filesystem Dungeon”) was generated using Google Gemini based on a concept by the Um:bruch editorial team (2026-04-09). The cover images of the Command Reference and Manual are excerpts from the respective PDFs and are subject to the same CC-BY-4.0 license as the documents themselves.
Downloads
German:
English:
Slides — Filesystem Control:
NEW — Codex CLI & ChatGPT (OpenAI):
NEW — Antigravity CLI & Gemini (Google):
LaTeX Sources (for customization):
Update Log
v0.7.0 (2026-05-31): Major update to all documents. 25 new Claude Code Commands (including /goal, /background, /code-review, /verify, /workflows, /deep-research), 11 new CLI subcommands, 7 new CLI flags. Models updated (Opus 4.8, GPT-5.5, Gemini 3.5 Flash). Codex/ChatGPT Guide and Antigravity/Gemini Guide as new documents. LaTeX sources of the Command Reference for download.
v0.6.0 (2026-04-09): First release.
This publication belongs to the AI Workshop section: Hands-on, testing tools, building guides, sharing knowledge. We see Claude Code not as magic, but as a tool — and tools need a manual.
Translation: Claude Haiku 4.5 (pre-translation), reviewed and finalized by Claude Sonnet. In case of discrepancies, the German version prevails.