whisper-local/CLAUDE.md

# whisper-local

Lokales Speech-to-Text-Tool: Hotkey halten → Audio aufnehmen → faster-whisper transkribieren → Text einfügen.

## Entwicklungsumgebung
- Python 3.13+, Paketmanager: `uv` (Lock-File: `uv.lock`)
- Python-Scripts direkt ausführen: `uv run python <script.py>`
- Tests: `uv run pytest` (mit `pytest-asyncio` für async-Tests)
- Starten: `uv run whisper-local`

## Sprache
- Entwicklungs- und Dokumentationssprache: Deutsch (Code-Bezeichner bleiben Englisch)

## Architektur
- Plattform-Dispatch via Factory-Funktionen: `create_listener()` / `create_inserter()`
- Linux: evdev (Hotkey) + ydotool/wl-copy (Wayland-Inserter)
- Windows: pynput (Hotkey) + pywin32 Clipboard + Ctrl+V (Win32-Inserter)
- Interfaces als `typing.Protocol` — keine abstrakte Basisklasse

## Wichtige Muster
- Hotkey-Key-Namen im evdev-Format (`KEY_F12`), auch auf Windows — `_pynput.py` übersetzt intern
- Key-Repeat-Unterdrückung im pynput-Backend: `_pressed`-Flag verhindert Doppelevents
- Async-Callbacks (`on_press`, `on_release`) via `asyncio.get_running_loop().call_soon_threadsafe`

## Konfiguration
- Linux: `~/.config/whisper-local/config.toml`
- Windows: `%APPDATA%\whisper-local\config.toml`
- Vorlage: `config.example.toml`

## Tests
- Plattform-spezifische Tests mit `@pytest.mark.skipif(sys.platform != "linux", ...)`
- Async-Callbacks mit `unittest.mock.AsyncMock` mocken

# CLAUDE.md

Behavioral guidelines to reduce common LLM coding mistakes. Merge with project-specific instructions as needed.

**Tradeoff:** These guidelines bias toward caution over speed. For trivial tasks, use judgment.

## 1. Think Before Coding

**Don't assume. Don't hide confusion. Surface tradeoffs.**

Before implementing:
- State your assumptions explicitly. If uncertain, ask.
- If multiple interpretations exist, present them - don't pick silently.
- If a simpler approach exists, say so. Push back when warranted.
- If something is unclear, stop. Name what's confusing. Ask.

## 2. Simplicity First

**Minimum code that solves the problem. Nothing speculative.**

- No features beyond what was asked.
- No abstractions for single-use code.
- No "flexibility" or "configurability" that wasn't requested.
- No error handling for impossible scenarios.
- If you write 200 lines and it could be 50, rewrite it.

Ask yourself: "Would a senior engineer say this is overcomplicated?" If yes, simplify.

## 3. Surgical Changes

**Touch only what you must. Clean up only your own mess.**

When editing existing code:
- Don't "improve" adjacent code, comments, or formatting.
- Don't refactor things that aren't broken.
- Match existing style, even if you'd do it differently.
- If you notice unrelated dead code, mention it - don't delete it.

When your changes create orphans:
- Remove imports/variables/functions that YOUR changes made unused.
- Don't remove pre-existing dead code unless asked.

The test: Every changed line should trace directly to the user's request.

## 4. Goal-Driven Execution

**Define success criteria. Loop until verified.**

Transform tasks into verifiable goals:
- "Add validation" → "Write tests for invalid inputs, then make them pass"
- "Fix the bug" → "Write a test that reproduces it, then make it pass"
- "Refactor X" → "Ensure tests pass before and after"

For multi-step tasks, state a brief plan:
```
1. [Step] → verify: [check]
2. [Step] → verify: [check]
3. [Step] → verify: [check]
```

Strong success criteria let you loop independently. Weak criteria ("make it work") require constant clarification.

---

**These guidelines are working if:** fewer unnecessary changes in diffs, fewer rewrites due to overcomplication, and clarifying questions come before implementation rather than after mistakes.

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