Most people have a folder full of $200 Next.js starter kits they bought and never launched. The problem is never auth or Stripe checkout. The problem is figuring out what to build, what users actually complain about in existing tools, and giving your coding agent enough context to build features without hallucinating and re-explaining your idea.

buildthread is not another static Next.js template. You paste an idea or a competitor link. Builderthread scans Reddit, G2, and Trustpilot for complaints and unmet needs, then generates a private GitHub repo with working starter code, a living PRD, and task packets. Your agent (Claude Code, Cursor, Codex, Windsurf) connects over MCP and builds the app task by task.