How I cut Claude Code & Cursor's SaaS boilerplate token burn by 50%..!

If you build SaaS apps with Claude Code, Cursor, Codex, or Antigravity, you've probably noticed the same expensive loop on every new project:

After watching my agent rewrite the exact same auth + credits + webhook loop across multiple projects, I stripped the entire workflow down into a 4-command CLI and SKILL.md called vstacks.

Here is the architecture behind how it keeps coding agents on rails and saves ~45,000–60,000 tokens per session.

Instead of letting an agent explore your directory tree on every new chat session, running:

vstacks map Enter fullscreen mode Exit fullscreen mode scans any JS/TS repository in ~229ms and generates.vstacks/MAP.md.

Along with the installed SKILL.md (which registers automatically across Claude Code, Cursor, Codex, and Antigravity), the agent reads.vstacks/MAP.md on Turn 1. It immediately knows:

Most boilerplates crash locally the second you run npm run dev without configuring 12.env keys for Supabase, Stripe/Dodo, and OpenAI.

vstacks new MySaas --payments dodo-payments --yes Enter fullscreen mode Exit fullscreen mode This scaffolds a clean Next.js App Router + Supabase + Tailwind project controlled by a single src/config.ts ( appConfig for branding, plans, credits, AI config, and waitlistMode ).

More importantly, it runs before you add a single API key:

Usually, if you start with Stripe and want to switch to Dodo Payments, Polar, or LemonSqueezy (or switch AI providers between OpenAI, Anthropic, Gemini, and OpenRouter), your agent has to rewrite your API routes and UI components.

Because vstacks isolates providers behind clean facades and ambient TypeScript definitions, you can run:

vstacks swap payments stripe # or vstacks swap payments dodo-payments Enter fullscreen mode Exit fullscreen mode In under a second, it swaps the underlying slot files, updates.vstacks/MAP.md, retains your DB migrations, and passes tsc --noEmit with 0 TypeScript errors and zero changes to your application code.

Coding agents love forgetting "use client" at the top of interactive components or accidentally importing a raw server SDK inside client UI code.

I packaged the entire CLI + multi-agent SKILL.md installer as a one-time download (no subscriptions, no accounts) at vyomirtha.com/vstacks (currently $9.99 for the first 25 spots).