Install
Add Devcanon to a new or existing repository in one command.
Engineering standards, on command
Vibe the idea. Ship it with standards.
Devcanon installs a durable engineering handbook into any repository—so architecture, design, security, testing, and delivery stay consistent without repeating yourself.
Existing repos firstPrivate by defaultSafe updates
$ devcanon
Engineering standards, on command · v1.1.1
Current directory: /Users/you/Projects/app
Type /help for commands or /init to install standards.
devcanon ›
43
focused standards
10
feature blueprints
0
runtime dependencies
1
shared source of truth
One install. Shared judgment.
A real handbook, not another prompt file.
Each concern has one authoritative home. Agents read only what the task requires while precedence rules keep decisions coherent.
01Architecture
02Product design
03Frontend
04Backend
05API design
06Database
07Security
08Accessibility
09Testing
10Deployment
11Observability
12AI features
Built with tools from
A workflow that stays out of your way
From empty folder to aligned engineering team.
Configure
Choose a preset in Studio or tailor individual standards locally.
Build
Every AI agent reads the same durable engineering judgment.
Works everywhere
Run globally, through npx, or pin the version for a whole team.
Preserves intent
Local changes are reported and never silently replaced.
Reviewable by design
Version standards beside code and update them through pull requests.
Portable presets
Carry a complete design and engineering profile in one short code.
Safe evolution
Preview handbook updates and understand every local difference.
Security stays mandatory
Presets can personalize choices but cannot weaken core safeguards.
Designed for the full lifecycle
Standards that travel from idea to production.
The same source of truth guides product surfaces, backend contracts, secure delivery, testing, observability, and documentation.
Explore the handbookDesign
Build
Ship
D›
Questions, answered
Built to be adopted, not babysat.
Does Devcanon overwrite my files?+
No. Existing instructions and modified standards are preserved unless you explicitly opt into replacement.
Does it work with existing repositories?+
Yes. Existing repositories are the primary workflow; Devcanon adds only what is missing and reports differences.
Which AI coding tools can use it?+
Any tool that reads repository Markdown instructions can use the handbook, including Codex, Claude Code, and IDE agents.
Are presets stored on a server?+
No. Preset codes are portable, deterministic, and generated locally in your browser.
Stop re-explaining how good work should look.
Install Devcanon, open your AI coding tool, and move from idea to implementation with the standards already in the room.