Build Apps
By talking to Assumer

The AI coding agent for your terminal and desktop. Assumer reads your codebase, plans the change, edits files and runs your tests, then shows you the diff to review.

Install in one command: npm i -g @4born-solutions/assumer ·All downloads

WORKS WITH YOUR STACK

MongoDB
Stripe
Google
Vercel

From idea to pull request, in your own codebase

Assumer plans, writes, tests and ships changes across your repository, with you in control of every step.

Agentic Coding

Describe a feature in plain English and Assumer builds it across your files

Live Preview

Run your app while the agent works and review every diff as it lands.

Plan Before Building

Switch to the read-only plan agent to agree on an approach before any edit.

Integration

Connect MCP servers, GitHub, editors and language servers.

Safe by Default

Allow, ask or deny every tool and command, and undo any change.

Your Code, Your Repo

Your code stays in your repo. Keep working in your favorite editor.

Describe it. Assumer builds it

From a single prompt to a reviewed change in your repo. Plan, edit, test and ship with an agent that works where you do

Assumer Desktop
Get Assumer
Build Landing Page
add a pricing page that matches our design system
Read Assumer.md
Read src/styles/tokens.css
6s
Thought

I'll follow the rules in Assumer.md and reuse the existing card and button components.

app/page.tsx
+52-0
app/globals.css
+14-0

Done. Added app/pricing/page.tsx using the existing components, linked it from the header, and the build passes.

Assumer CLI

updated the report to include:

report.py +10 -0

I'll add tests that cover the new fields with a sample from last week's data:

test_usage.py +93 -0

All set. The report now includes weekly totals and growth, and the new tests pass.

> Add a follow-up
Assumer
/ for commands · @ for files

Explore what you can build

Websites, APIs, dashboards and complete products, built by an agent working in your own repository

How Assumer Works

Four simple steps from idea to merged change

1

Describe the Change

Ask for a feature, fix or refactor in plain English. Assumer reads your codebase to understand it.

2

Review the Plan

Use the plan agent to see which files will change and agree on the approach first.

3

Let It Build

Assumer edits files, runs your tests and fixes failures, within the permissions you set.

4

Review and Ship

Check the diff, undo anything you don’t want, then commit and open a pull request.