// idea to users. from your terminal.

Your side project's
co-founder.

CTX is a persistent, opinionated co-pilot that lives inside Claude Code. It validates your idea, shapes your brand, builds the product, and gets it in front of users. It tracks every decision, pushes back when your thinking is thin, and stays with you from first commit to first 100 users.

claude code
$ ctx start

▶ initializing context agent...

? describe your idea in one sentence
  a journaling app that uses ai to turn
  voice memos into structured reflections

▶ "journaling" has 4k+ apps on ios.
  what makes someone switch to this?

  voice-first. no typing. ai extracts
  mood, themes, and growth patterns.

▶ journaling retention drops 80% by week 3.
  what's your retention primitive?

  weekly ai summaries + streak nudges

✓ context captured → landscape
// the pipeline
Eight phases from idea
to first users

CTX walks you through the same process a senior technical co-founder would follow. Product thinking, brand, engineering, marketing. Each phase is interactive. Each phase pushes back. You stay in control.

01

Context

product

CTX scopes your idea before anything gets built. Who is this for? What’s the core primitive? What’s the retention model? It pushes back when the thinking is thin and won’t let you skip the hard questions.

02

Landscape

product

Competitive surface mapping, feature gap analysis, pricing benchmarks, positioning. CTX scans the space your product will live in and surfaces the data that shapes what you build and how you differentiate.

03

Identity

brand

Name candidates with live domain resolution. Color systems derived from positioning. Typography pairing. Mark concepts. A coherent product identity generated alongside the product, not bolted on after.

04

Architecture

engineering

Platform target, infrastructure topology, data modeling, auth strategy, environment separation. Every technical decision resolved with production in mind. The architecture you get is the one you keep.

05

Build

engineering

The entire application, screen by screen. Auth, database, email, onboarding, core features. A complete working codebase built to production standards. Not a preview. Not a mockup. Real code you own.

06

Deploy

engineering

CI pipeline. Environment configuration. Production hardening checklist. The gap between “works locally” and “works in production” is closed before you push your first commit.

07

Launch

marketing

Landing page generated from your positioning. Analytics wired to the events that matter. Store listing copy. Social assets. Everything you need to put your product in front of real people on day one.

08

Grow

marketing

Ad creative variants matched to your positioning and budget. Channel recommendations based on your audience. CAC targets derived from your pricing model. CTX helps you find your first 100 users, not just build for them.

// your rules
Go fast, or go deep

CTX adapts to how much control you want. Skip the exercises and let the engine decide. Or go through every question, every decision, every detail.

quick

Describe it. Get it.

Tell CTX what you're building. It picks the stack, makes the architecture decisions, and generates the entire application with recommended defaults. Minimal questions. Maximum speed. For when you trust the engine and want to move.

deep

Every decision is yours.

CTX walks you through the complete product development exercise. Idea validation, user personas, competitive analysis, brand workshops, stack selection, architecture review. You're involved at every step. For when the details matter.

▶_

Your Claude Code environment. Nothing else.

No browser app. No account dashboard. No new tool to learn. CTX runs as a set of skills inside Claude Code. Your terminal, your local file system, your git workflow. If you've used Claude Code before, you already know how to use CTX.

// persistence
It remembers everything

CTX tracks every decision in local markdown files inside your repo. Your competitive analysis from week one informs your ad copy in week six. Nothing gets lost. Nothing gets repeated.

~/.ctx/

Local state, version-controlled

Every phase writes to markdown files in your project. Decisions, research, brand guidelines, architecture notes. It's all in your repo, diffable and yours.

←→

Cross-phase awareness

Your landing page pulls from your positioning research. Your ad copy references your competitive gaps. CTX connects decisions across pillars automatically.

!

Opinionated nudges

Deployed but no analytics? CTX flags it. Pricing doesn't match your competitive surface? It tells you. It won't let you ship with blind spots.

// who it's for
For people who build side projects

CTX is for anyone who has an idea and wants to take it all the way to real users. You don't need to be senior. You just need to be the kind of person who'd rather build than talk about building.

Engineers with ideas

You can build anything but never get past the idea phase. CTX handles the product thinking, brand, and marketing so you can focus on the code.

Solo founders

You need to validate fast across every dimension — product, brand, tech, growth. CTX is the technical co-founder who covers the gaps you don't have time for.

Builders who ship

You've launched before but always skip the brand, the analytics, the marketing. CTX makes sure nothing gets left behind this time.

// what ctx is not
Not another app builder

App builders generate code. CTX guides you through building a product. There's a difference. It covers the decisions those tools skip — who this is for, how it's positioned, what the brand looks like, how you get users. And when it writes code, it's real code in your terminal, your file system, your git repo. No hosted playground. No walled garden.

// early access
From idea to first users
with ctx

We're building the co-pilot. If you've ever had a side project die between "great idea" and "actual users," this is for you.

No spam. Early access only.