Open-source agent OS for Claude Code that puts you in Builder Mode — and keeps you there for the whole life of a product. Claude Code setup that builds, launches, and learns. Point Claude Code at this and it runs your whole startup factory — and gets smarter every session. Works with Cursor, Codex & Windsurf too.
This repository also configures its own agents. See what hamzaish tells them →
Skill Claude CodeCodex
Grounds every implementation decision in official documentation. Use when you want authoritative, source-cited code free from outdated patterns. Use when building with any framework or library where correctness matters.
Skill Claude CodeCodex
Creates specs before coding. Use when starting a new project, feature, or significant change and no specification exists yet. Use when requirements are unclear, ambiguous, or only exist as a vague idea.
Skill Claude CodeCodex
Drives development with tests. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.
Skill Claude CodeCodex
The cleanup stage. When a build hits a milestone (pre-launch, end of a sprint, "let's tidy this up"), scan a repo — or 100+ repos at once — for rot, see the extent at a glance, then clean it with confirmation. Report-first, never silently edits. Works on any git repo, Hamzaish-built or not.
Skill Claude CodeCodex
Find and fix prose in a repo that only makes sense from inside the session that wrote it — dead references to a conversation, change narration ("used to", "no longer"), reviewer-addressed asides, and pointers to work that never landed. Use before a PR, before publishing docs, and when a repo has been written largely…
Skill Claude CodeCodex
Turn a rough ambition into a measurable, REACHABLE goal — a capability statement, a precisely-named metric, ≥2 numeric evals, an acceptance rule, and non-goals — with a feasibility check that catches impossible or game-able targets before you chase them. Pair with /goal (which pursues a goal autonomously).
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: