SpeakToDebug — Debug Out Loud

SpeakToDebug is a voice-first debugging partner built on the AssemblyAI Voice Agent API. Every developer knows the moment: you hit a bug while your hands are busy in the editor, or mid-review on a second screen. Chat assistants can talk about your code, but they have never seen it. SpeakToDebug is the colleague with hands on your keyboard: you speak the problem — no context switching, no pasting snippets — and the agent investigates for real. It searches your actual files, opens the suspicious lines, and runs your actual test suite, then answers out loud with the root cause, verified against your code. Under the hood, one WebSocket connection to the AssemblyAI Voice Agent API handles Universal-3.5 Pro speech-to-text, LLM reasoning with tool calling, voice output, and turn-taking. The agent's tool calls (search_code, read_file, run_tests, list_files) are forwarded by the browser to a local server that executes them inside your real repository — paths are jailed to the workspace, so nothing outside the project can be touched. Every spoken answer is grounded in actual tool output from your machine, never invented. The result feels less like a chatbot and more like a teammate sitting next to you: hands-free investigation while you stay in flow. A 90-second demo video with English subtitles is included in the repository (demo/demo.mp4), and the whole project runs locally with npm start after adding an AssemblyAI API key.