MIT /open source /C4 · DDD · governance

Architecture that lives here,
and holds whatever builds from it.

One model, built by you or by AI, that becomes the harness for whatever builds from it.

Modelled by either Draw it in Studio, chat it with AI, or let an agent edit the .radical file.

Read as context Agents read boundaries, ADRs and requirements before writing code.

Checked against Fitness functions and requirements catch code that drifts from the model.

Also in the box

Governance built in. ADRs, fitness functions and EARS requirements as linked model elements.
AI that edits the model. Validated, undoable patches. Claude, OpenAI, Gemini or Ollama — your key, nothing proxied.
Concept Hub. 120+ ready-made requirements, ADRs, patterns and blueprints.
Smart Layout. Tries several layout engines and keeps the cleanest result.
Design, view, present. Edit, explore read-only or turn views into slides.
Plain files, no lock-in. One .radical JSON file or a folder of Markdown — git-friendly.
Desktop, browser or VS Code. Same editor everywhere.

Skip the blank canvas — pick concepts and add them to Studio in one click.

Blueprints Patterns Requirements ADRs Fitness Functions

Node.js ≥ 18 — or skip the install and use studio.radical.tools.

GitHub → Releases → Manual →

# clone, install, run
git clone https://github.com/radicaltools/radical.tools.git
cd radical.tools
npm install
npm run dev