Give your coding agent a better starting point.
Launchrail is a planned starter kit for building paid web apps with coding agents. It gives your agent a clear map of the project, reusable feature workflows, and checks that help you review what it builds.
Your agent can write code. It still needs to understand how your app should work.
Without architectural constraints, coding agents generate inconsistent patterns and drift from your specs.
Lost context
Agents re-invent patterns or hallucinate non-existent database helpers across iterations, fracturing your code structure.
Inconsistent changes
Divergent state management, mixed auth checks, and fragmented styling creep into files written by different prompts.
Unverified work
Syntactically valid code that silently breaks business logic, Stripe webhooks, or multi-tenant security boundaries.
Repeated setup
Spending hours re-explaining repo structure, secrets, and setup instructions each time you start a new agent chat.
Put the project's rules and release checks where your agent can use them.
Project map
Structured system prompt and architecture blueprint so agents grasp models, routes, and auth conventions in zero shots without hallucination.
Repeatable workflows
Modular recipes for authentication, Stripe checkouts, transactional emails, and CRUD endpoints engineered for predictable generation.
Visible verification
Automated guardrails, linting, type safety, and runtime contracts so you can review pull requests with confidence and speed.
From feature request to a change you can review.
Follow the step-by-step pipeline ensuring your agent adheres to project discipline.
Input prompt in your IDE agent
Describe what you want to add or modify. Launchrail's scaffolding ensures the agent receives all ambient context before touching code.
Use the existing AuthSession provider, add seat licensing in Postgres, and notify users via Resend template.
Start with one complete web-app path.
A battle-tested, cohesive stack designed to get paid products to market without agent thrash.
Who Launchrail is built for.
We are intentionally optimizing for high-leverage builders who rely on modern coding agents.
A good fit
- arrow_right Full-stack solo founders building paid web apps with Cursor, Claude Code, or Windsurf.
- arrow_right Software engineers who want to launch products fast without sacrificing clean architecture or safety.
- arrow_right Small product squads seeking consistent code conventions across AI-assisted teammates.
Not the first fit
- close No-code builders who want visual drag-and-drop page builders rather than code-first repositories.
- close Legacy multi-tenant monoliths migrating complex Java or Rails backends without Next.js.
- close Purely native mobile apps with no web application or subscription management layer.
Product Roadmap
Engineered incrementally for production rigor.
Web Foundation
Next.js 15, Supabase, Stripe billing engine, AGENTS.md spec parser, and CI verification scripts for solo developers.
Mobile Workflows
React Native / Expo agent templates, unified Supabase client abstractions, and cross-platform authentication flows.
Desktop Integration
Local agent CLI, automatic GitHub PR reviewer agent, and autonomous database migration safety verification bots.
Request Early Beta Access
We’re speaking with developers who build paid web applications with coding agents. Send us an email with what you’re building to request early beta access.