Zero‑Code ASCII Art Converter Built Entirely with Claude Code

The author describes building an ASCII Art Converter that streams live webcam footage, performs AI analysis with Anthropic, OpenAI, or Gemini, and exports results as PNG or TXT, all while maintaining a cyberpunk design system. The entire codebase was generated through Claude Code prompts, with no manual editing of files. To keep the AI focused, the author maintained a CONTEXT.md containing domain terms and a docs/adr directory documenting architectural decisions such as the separation of hidden and visible canvases and the decision to run the webcam loop on the main thread. Skills from Matt Pocock were adapted to create a /security-review prompt that automatically checks for common vulnerabilities. When Claude produced scattered useState hooks, the author prompted for a useReducer hook, resulting in cleaner state management. The project demonstrates that prompt‑driven development can produce a fully functional application, from front‑end to AI integration, without writing a single line of code manually. The source code is hosted on GitHub (https://github.com/andraderaul/ascii-art-converter) and a live demo is available at https://ascii-art-converter-tawny.vercel.app/. The author invites readers to examine the prompts, decisions, and code structure for further learning.