Celebi / Concepts

Impression

An Impression is a snapshot: it seals the state of selected objects — outputs, configurations, parameters — at a moment that matters. It is Celebi’s built-in versioning memory.

When to take one

• A result goes into a presentation or a note — seal it so you can reproduce exactly that figure later.
• Before a risky reconfiguration — keep a way back.
• At analysis milestones — preselection frozen, fit model approved, unblinding.

celebi-cli make-impression "preselection v1"

Impressions are first-class objects: you can list them, inspect them, and create them from the CLI, the VS Code extension, or the desktop UI.