What is rockyvoice?

RockyVoice is a persona modification for the Claude Code AI assistant, and for a separate tool called Hermes. When activated, it changes how the AI writes and speaks: instead of normal fluent prose, it responds in the style of Rocky, a fictional alien character from Andy Weir's novel Project Hail Mary. Rocky is an Eridian who learned human language quickly but speaks in short, simple sentences without standard grammar, and ends questions with the word "question." The change is surface-level rather than a reduction in capability. The AI still answers technical questions correctly, but the words it uses are shorter and the sentences are stripped down. The repository gives a before-and-after example: where a normal response might explain why a React component re-renders in full sentences, Rocky's version says "New object every render. React sees new thing, draws again. Wrap in useMemo. Good good good." There are two components. The first is a text-only skill file, which is a single document you copy into your Claude Code or Hermes skills folder. No extra software is needed for that part. The second is a voice mode, which runs a small local web server and sends each of Rocky's responses to Hume AI's text-to-speech service, which synthesizes audio in a custom voice clone you create from an included recording. The voice playback is wired into Claude Code through a setting that triggers automatically after each AI response. Setting up the voice clone requires a Hume AI account. The repository includes a source audio clip and step-by-step instructions for uploading it to create a private voice. Since voice clones on Hume are private per account, each user creates their own from the same recording. The skill auto-configures most of the setup when you first activate it in Claude Code, detecting missing hooks and permissions and offering to fix them.