Stop babysitting your AI
You finally got the auth system working. Then you asked for a small tweak. The AI rewrote your database schema, renamed half your routes, and somehow broke pagination. Specs lock in what works so AI can't quietly rewrite your decisions.
Works with Cursor, Claude Code, Codex, and any AI coder that can read files.
Every AI coding project follows the same pattern. It starts fast, then falls apart.
Auth, dashboard, API routes generated in hours. You feel unstoppable.
A simple change to one component and the AI rewrites three files, breaks two others.
Every prompt is a risk. You spend more time reviewing than coding. The AI became a liability.
Three products, one mission: make AI coding predictable.
Browse, buy, and publish ready-to-use spec kits for auth, payments, dashboards, and more. One purchase, yours forever. Security patches always free.
Visual spec editor with a built-in AI agent. Write specs, generate code, and verify output in one workspace. Local-first and permission-controlled.
Autonomous coding engine. Give it a spec and it builds the entire system — writes tests first, generates code, runs security scans, and delivers production-ready output.
Four concepts that change everything about AI-assisted development.
A short list of behaviors your feature must satisfy. If it passes, ship it. If it fails, keep working.
Existing files, routes, and schemas the AI must leave alone. No silent rewrites.
Build, typecheck, run tests. If the proof step fails, the spec isn't met. Objective, repeatable.
Architectural choices documented in the spec. AI reads them before making changes.
Find spec kits for auth, payments, dashboards, APIs, and more. Filter by framework, language, or use case.
One-time purchase. No subscription. You own the spec forever. Cryptographically signed proof of ownership.
Drop the spec into your project. Your AI reads the boundaries, success criteria, and proof steps before writing code.
AI stays inside the lines. Proof step passes. You ship with confidence. Reuse the spec on your next project.
Specs work alongside your existing tools. No vendor lock-in.
Cursor, Claude Code, GitHub Copilot, Codex, Windsurf, Aider
TypeScript, Python, Go, Rust, Java, Ruby, PHP, C#
Next.js, React, Django, Rails, Express, FastAPI, Spring
Works with any repo. Git versioned. CI/CD compatible. Local-first.
Browse the marketplace, try Studio, or start building your own specs.