All generated audio files organized by category. Category naming: lowercase-hyphenated (e.g., bedtime-stories, podcasts, voiceovers). Filename patterns: use descriptive slugs with dates when relevant (2024-01-15-story-name.mp3). Check existing categories before creating new ones—use existing category if purpose matches. MP3 preferred at 44100/128kbps. Retention: 30 days unless task specifies otherwise. Don't store intermediate/draft generations—only final outputs.