NEW · open beta · durable workflows + multi-user collaboration

From idea or codebase to production, chunk by chunk.

Modular Chunks plans, validates, and ships your software in small, reasoned units — co-piloted by your favorite AI coding agent. Durable workflows, real-time progress, granular notifications, and a CLI that drives Claude Code, Cursor, and Windsurf via MCP.

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modularchunks.com/build

Build Dashboard

my-saas · 24 chunks · 5 in progress

All systems healthy
Build progress
12 / 24
To Do
7
auth · session middleware
api · /projects POST
settings · billing tab
In Progress
5
dashboard · build view
filters · status pills
Done
12
schema · prisma init
models · User + Project
layout · sidebar shell
/ Features

Everything you need to ship with AI agents

Modular Chunks is a planning, validation, and orchestration layer — not just another AI wrapper.

Architect that won't mis-stack your build

Pre-flight captures what you're building (18 deliverable types — SaaS, mobile, CLI, smart contracts, ML, …) and who it's for (10 industries). The architect treats those as non-negotiable: a cross-platform mobile project will never get a Next.js stack, an ETL pipeline never gets an admin dashboard you didn't ask for.

11-stage planning pipeline

Pre-flight → Intake → Brief → Architecture → PRD → Design Intake → Blueprint → Logic → Assembly → Code Review → Council. Each stage produces a frozen contract you approve before the next runs. No auto-cascade; per-stage retry.

Audit & wiring

Detects orphaned APIs, missing routes, unused components, broken contracts. `chunky audit ui` and `chunky audit wiring` flag breakages before you ship.

Durable workflows + realtime dashboard

Chunk generation runs on Inngest with parallel-DAG fan-out (3-4× faster than sequential). Close the tab; come back later; the chunks are waiting. Live progress streams via Supabase Realtime.

Multi-user collaboration

Project members, role-based RLS, granular per-event notifications (email, Slack, Web Push). Set a per-project monthly spend cap so AI never bleeds your budget.

CLI autopilot

`chunky autopilot` drives Claude Code, Cursor, and Windsurf via MCP. Pulls open chunks, runs them, syncs results back, pings you on Slack when stalled or done.

/ How it works

Four steps from prompt to production

01

Describe or upload

Paste an idea or drop a codebase. Pre-flight captures what you're building (the deliverable — SaaS, iOS, smart contract, ETL job, …) and who it's for (the industry — fintech, healthcare, devtools, …). We bake those signals into every downstream stage, plus the compliance frameworks you flag (HIPAA, SOC 2, GDPR, PCI-DSS, FedRAMP, ISO 27001).

02

Plan & chunk

Brief → architecture → PRD → design intake → blueprint. Each step is user-triggered with retry-per-stage; nothing auto-cascades and silently fails.

03

Build with AI — your way

CLI autopilot (Claude Code / Cursor / Windsurf via MCP), Chrome extension (Ask Chunky in a side panel), or copy-paste manually. You pick the path.

04

Validate & ship

Quality gate rejects stubs, duplicates, and wrong-tech outputs before merge. You ship working code, not drafts.

~/projects/my-saas
$ chunky start
→ Loading project context…
→ Generating brief…
→ Designing architecture…
→ Writing PRD…
→ Chunking blueprint…
Blueprint ready · 24 chunks
→ MCP tools registered for Claude Code, Cursor, Windsurf
$
/ CLI-first

A CLI that talks to your AI agent

Modular Chunks is a CLI (chunky) plus a SaaS platform. Run the wizard once and your favorite AI agent picks it up via MCP — no glue code, no copy-pasting prompts.

  • Auto-registers 19 MCP tools for Claude Code, Cursor, Windsurf
  • Pre-build reasoning grounds chunks in your actual files
  • Quality gate rejects stub chunks before merge
  • Works on new projects or existing codebases
/ Pricing

One plan. $5 a month.

500K tokens included every month. Overage at $0.50 / 100K. 14-day free trial — no card up-front. Cancel any time.

Solo
$5/month

or $50 / year — save 17%

  • 500,000 tokens / month
  • Brief, architecture, PRD, blueprint
  • CLI, MCP, autopilot — all included
  • Overage at $0.50 per 100K tokens
  • 14-day free trial — no card required
Start free trial

Ready to ship your first chunk?

Free to start. No credit card. Your first blueprint in under 10 minutes.