Should you build your own CodeSpring?
Visual mind-mapping tool that turns app ideas into PRDs and kanban tasks for AI coding agents
The core loop, a mind map that turns feature notes into PRDs and kanban tasks fed to a coding agent, is just structured prompting and file generation, well within reach of a one-shot build. What's missing is the polish: the visual mind-map canvas, MCP/CLI integrations with Claude Code, Cursor and Codex, and the docs search. A DIY version gets you most of the value but with a rougher UI and manual glue between the planning docs and your agent of choice.
ENOriginal research content in English. Original prompt preserved in English.
Build me a local-first app-planning tool in Next.js.
Stack: Next.js + TypeScript, SQLite via better-sqlite3, Tailwind for UI. No auth, single user, runs on localhost.
Core loop:
1. A canvas page where I can add draggable "feature" nodes (title + free-text notes), connect them with lines, and save the layout to SQLite.
2. A "Generate PRD" button per feature that calls the Anthropic API (key from .env) with the feature notes and produces a structured PRD (problem, scope, out-of-scope, acceptance criteria) saved as a markdown file in /docs.
3. A simple kanban board (To Do / In Progress / Done) auto-seeded with tasks parsed from each generated PRD, editable by drag-and-drop.
4. An "Export" button that zips all PRD markdown files plus a tasks.json for dropping into any coding agent's context folder.
Out of scope: multi-user accounts, real-time collaboration, MCP server, mobile app, billing.
Include a README explaining setup, the .env variable needed, and how to point Claude Code/Cursor at the exported /docs folder.The prompt opens pre-filled in your agent. Review it before running.
What would building your own look like?
A local app where you map features on a canvas, write notes per feature, and generate a PRD + task list file that you feed to your coding agent.
What you will need
- OpenAI/Anthropic API key
Non-technical builders pay for the guided, visual workflow and the fact it already talks to Cursor, Claude Code and Codex out of the box, rather than assembling their own prompt templates and task tracker.
xpolished drag-and-drop mind-map canvas
xMCP server integration with Cursor/Claude Code/Codex
xsemantic docs search
xhosted kanban sync across devices
xprebuilt skills library
Prefer something ready-made?
AFFiNEWhiteboard-plus-docs workspace you can use to map features and write specs by hand.Open source↗License, setup, and limitations for each alternative.
How much does CodeSpring cost?
- Monthly billing
- $53/mo$53/mo
- Per year
- $636/yr$636/yr
- On a Brazilian card, with 3.5% IOF
- R$277/moR$3,324/yr
Saved to My list. You will see a notice on this site when the price changes.
You complete the purchase on CodeSpring’s site. Vibe Radar does not handle payments.
Is it cheaper to build or buy CodeSpring?
Adjust the numbers: hours to build, your hourly rate, running costs and the subscription price.
Over 24 months, subscribing is cheaper.
Starting hours estimated from the analysis (multi-day). Does not price what you give up (support, integrations, security).
Can I rebuild CodeSpring?
Kinda. The core of CodeSpring is buildable in a weekend with the prompt on this page, but there are real gaps: polished drag-and-drop mind-map canvas, MCP server integration with Cursor/Claude Code/Codex. Read the honest list above before committing.
How much does CodeSpring cost?
CodeSpring costs about $53/mo (Pro, checked 08/10/2026), which is $636 per year.
What do I lose by replacing CodeSpring?
Honestly: polished drag-and-drop mind-map canvas; MCP server integration with Cursor/Claude Code/Codex; semantic docs search; hosted kanban sync across devices; prebuilt skills library. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to CodeSpring?
Yes: AFFiNE (Whiteboard-plus-docs workspace you can use to map features and write specs by hand.) The prompt is for when you want it exactly your way.