# Game Crafter Card Specification — Watershed v0.1

## Card dimensions

- Prototype: standard poker size, 2.5 × 3.5 inches.
- Bleed: 0.125 inches when preparing production files.
- One phase ID in the upper-left corner.
- One phase name centered in the header.
- Intent text in the middle panel.
- Table instruction and state effect in the lower panel.
- A small basin icon or zone diagram on every card.

## Card families

### Phase cards

One card per watershed transition, W01–W10. Phase cards define where the system is and what transition is available.

### Action cards

Action cards give players choices inside a phase. They must not introduce state variables that do not exist in the CookieBlob schema.

### Trace / seed cards

A trace card records the order of phase IDs and can be photographed or re-entered into CookieBlob. It is the physical equivalent of the browser's persistent history.

## Production constraints

- Use plain language on the first prototype.
- Keep IDs stable after publication.
- Never put a platform-specific instruction on a shared card without a platform-neutral state effect beside it.
- Mark unresolved rules `RESERVED`; do not silently invent W03–W10 behavior.