ChengTu

Mux0. A native macOS terminal built on libghostty. Workspaces, tabs, and split panes for your repos — with live status for every Claude Code, OpenCode, and Codex session you run.

input0. Input0 — A macOS voice input tool: hold a hotkey to record, release to transcribe locally via STT, refine with LLM, and auto-paste into the active text field.

harness-engineering. Set up and improve harness engineering (AGENTS.md, docs/, lint rules, eval systems, project-level prompt engineering) for AI-agent-friendly codebases. Triggers on: new/empty project setup for AI agents, AGENTS.md or CLAUDE.md creation, harness engineering questions, making agents work better on a codebase.