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Supermux Core
Build Agentic Apps on your Claude Code, Codex Subscription
A TypeScript library for building apps on top of Claude Code, Codex, Cursor, OpenCode, Grok Build and Antigravity. It runs each agent's own CLI with the login that CLI already has, and gives your code one API for sessions, events and permission prompts
@supermux/core is a TypeScript library for building apps on top of Claude Code, Codex, Cursor, OpenCode, Grok Build and Antigravity.
It runs each agent's own CLI on your machine with the login that CLI already has, so what you build runs on your own subscriptions. Nothing is proxied.
Your code gets one API for sessions, one normalized event stream, permission prompts and questions as events, subagents, and your TypeScript functions as tools. Each agent runs behind a small keeper process, so your app can crash, restart or redeploy and pick a running turn back up.
The package includes an agent skill, so you can also ask your agent to build the app:
npx skills add UstaLabs/supermux --skill supermux-core
Two examples to copy: a chat app in the style of T3 Code, and a kanban board where each card is a task run by one agent in its own git worktree.
MIT. Linux and macOS (Windows through WSL). It's 0.1, so the API can still change. It's the same core the supermux app runs on.
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About Supermux Core on Product Hunt
“Build Agentic Apps on your Claude Code, Codex Subscription”
Supermux Core was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #68 on the daily leaderboard. A TypeScript library for building apps on top of Claude Code, Codex, Cursor, OpenCode, Grok Build and Antigravity. It runs each agent's own CLI with the login that CLI already has, and gives your code one API for sessions, events and permission prompts
Supermux Core was featured in Open Source (69k followers), Developer Tools (521.8k followers), Artificial Intelligence (481.9k followers) and GitHub (41.4k followers) on Product Hunt. Together, these topics include over 271.4k products, making this a competitive space to launch in.
Who hunted Supermux Core?
Supermux Core was hunted by Ahmet Hüseyin Dok. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Ahmet Hüseyin Dok