AI engineering you can inspect, control, and prove.

Your model keys. Your terminal. Every action traced, every tool scoped, every result provable. Arcana turns AI sessions into verifiable engineering.

Install Arcana See how it works

// Meet Arcana

Give it an objective. Watch it plan, execute, and prove the result.

Arcana is a command-spine workbench built on OpenCode. It reads your codebase, plans the work, executes through visible steps, and leaves a verifiable record you can audit, replay, and trust.