# CLAUDE.md - Agent Guidelines for HdM Slides

This project builds presentation decks for Marp, supporting multiple courses.

## Courses

- **223015b** - Dateiformate, Schnittstellen, Speichermedien (6 Kapitel)
- **223015c** - Internettechnologien (3 Kapitel)

## Agent Restrictions

- Agent NEVER runs commands outside this folder
- Agent NEVER runs build/deploy commands without explicit user request
- Agent NEVER runs deploy commands (make deploy, scp, etc.) without explicit user permission
- Agent NEVER runs `git checkout --` or `git restore` on files with uncommitted work. To undo specific changes, use targeted Edit operations instead.

## Critical File Protection

Slide files in `slides/*/*.md` are main content files:
- ALLOWED: Adding slides, adjusting content, fixing typos, enhancing sections
- FORBIDDEN (without permission): Deleting slides, removing sections, bulk deletions
- Before ANY deletion: ALWAYS ask user for confirmation

## Project Structure

```
slides/
├── 223015b/            # Dateiformate course
└── 223015c/            # Internettechnik course
scripts/                # Shared scripts
themes/                 # Custom Marp themes
build/                  # Generated output (gitignored)
```

## Build Commands

```bash
make dev-b          # Dev server 223015b (port 1311)
make dev-c          # Dev server 223015c (port 1312)
make build          # Build all courses
make build-b        # Build 223015b only
make build-c        # Build 223015c only
make html           # HTML only
make pdf            # PDF only
make klausur        # Extract klausur slides → slides/*/klausur.md
make deploy         # Deploy all (ASK FIRST!)
```

## Nix Flake Commands

```bash
nix develop                           # Dev shell with all tools (node 22, npm, make)
```

## Code Style Guidelines

### File Structure
- Slides in `slides/<course>/`
- Assets in `slides/<course>/assets/`
- Always reference images as `./assets/filename.png`

### Naming Conventions
- Slide files: `NN-topic.md` (e.g., `01-grundlagen.md`)
- Images: `snake_case.jpg` or `kebab-case.jpg`

### Markdown Style
- Use ATX-style headers (# ## ###)
- Frontmatter for slide metadata
- Never include a final `---` (creates empty slide)

### Git Workflow
- Commit messages: ALWAYS lowercase
- NEVER add co-authoring lines or generated footers