Beta

Craft

A coding tool that runs entirely on your Mac.

Craft is a coding tool for macOS, a terminal and a Mac app, that runs on local models. It learns your codebase before the model writes a word, and marks everything it writes with the code it came from.

Download for MacRoyalties for code

Beta · Build 12 · November 8, 2026 · Requires macOS 27 and Apple Silicon
Open this page on a Mac to try the full demo.

Craft AgentsAgents by creators who know how to make something.

Only on your Mac

Nothing leaves your Mac.

Craft runs open models with MLX on Apple Silicon. Your code, your questions and every answer stay on the machine.

Qwen3-Coder-Next-REAP-48B-A3B-mlx-4bit · on this Mac

Learns the code first

Before each turn Craft pins what the ask touches: the function, its type, its callers and look-alikes, from its code index and a Thread of every project you’ve opened.

Context: sceneFragment · its type, 1 callee, 3 by meaning · 0.5k tokens6 sources

Credits its sources

When a turn ends, every name in the reply and on an added line that came from your code gets a brushstroke in its source’s colour. Click one to see the code.

Add fog to the bridge scene, the way I’d write it.

Fog.metal now holds the fog as two small, pure functions, the way you split the long shader.

fogAmount is how much of the view is fog after depth metres. Every metre passes on the same share of the light behind it, so it is 1 − exp(−density · depth), the falloff absorb uses for Tidepool’s water. applyFog mixes the lit colour toward SceneUniforms.skyColor, so distance takes the darks away instead of painting white.

sceneFragment applies it after shade, with the depth vertexMain already writes into VertexOut. At a density of 0.0008 the near tower is 27% fog and the far one 70%, so it keeps its outline. The build passes, and so do all 12 tests.

Checks its own work

Plans become checklists measured against the real code, and Craft builds and runs the tests before it calls a change done.

Sources/Bridge/Shaders/Scene.metal+6−1applied
@@ -2,7 +2,11 @@
using namespace metal;
float3 shade(float3 albedo, float3 normal, float3 sun);
+float3 applyFog(float3 lit, float3 sky, float depth, float density);
+// Thin enough that the far tower keeps its outline.
+constant float fogDensity = 0.0008;
+
// PIN: laid out like SceneUniforms in SceneUniforms.swift. Change both.
struct SceneUniforms {
float4x4 viewProjection;
@@ -41,5 +45,6 @@
constant SceneUniforms &uniforms [[buffer(1)]]) {
float3 normal = normalize(in.normal);
float3 lit = shade(in.albedo, normal, uniforms.sunDirection);
− return float4(lit, 1.0);
+ float3 color = applyFog(lit, uniforms.skyColor, in.depth, fogDensity);
+ return float4(color, 1.0);
}
build: Build complete, 0 warnings
test: 12 passed, golden frames match

Agents you add

Agents are apps from the Rao store. Install one while Craft runs and it builds on your Mac from its repository, then runs in a process of its own for each call. Name one with $ — $plate draws an architecture plate, $marble tones a photo — and #canvas shows what it makes beside the chat.

A terminal, too

Everything the app does, the craft command does in any project folder, with the same models, index and credit.

~/Developer/Bridge % craft
~/Developer/Bridge % craft -p "where does the depth come from?"
~/Developer/Bridge % craft models list

Getting started

Five steps, all on your Mac. Craft never downloads a model you didn’t ask for.

  1. Install and open Craft

    Download the installer, run it, then open Craft from Applications. It needs Apple Silicon and macOS 27.

  2. Add the models

    The first time it opens, Craft walks you through two models. It reads this Mac’s memory and suggests the coding model it can hold: Qwen3-Coder-Next 48B on a 48 GB Mac, a smaller Qwen on less. Then it downloads that and voyage-4-nano, the embedding model, into ~/.rao/models. Nothing downloads until you click.

  3. Open a project

    Choose a folder or drop one on the window. Craft indexes it the first time, and reads CRAFT.md at the start of every session.

  4. Ask

    Type in the composer and press ⇧⏎. $ names an agent the turn must use, @ pins a file, # opens a helper beside the chat. When the turn ends, click a brushstroke to see the code it came from.

  5. Add agents

    Signed in with your Rao account, the Agent Store is in Craft’s toolbar. Agents are apps: install one and it builds on your Mac while Craft runs, and a session already open can call it from its next message. Settings › Agents installs them too.

    Browse Craft Agents →

Craft keeps itself current: Craft ▸ Check for Updates… fetches each new build. It follows your Mac’s Light or Dark Mode, or holds one in Settings › General.