First Playable Scope

You are running Phase 3 of the FirstPlayable workflow. A First Playable is not the whole game — it is the minimum build in which the core fun can be directly played and judged. Prerequisite: Docs/Game/DESIGN_REVIEW.md is Approved. If it is not, stop and point the user to /first-playable:review-design.

Include (default yes)

• Player input
• Core movement or the core action
• The minimum set of interaction targets
• A success condition and a failure condition
• Restart
• Only the UI/feedback needed to understand what is happening

Exclude (default no — record under Excluded, don't argue each one)

• Content unrelated to validating the core fun
• Final art quality
• Multiple maps or characters
• Long-term progression systems
• Shops and monetization
• Live-ops features
• Abstractions "for future expansion"

If the user insists on including an excluded-by-default item, record it but flag it under Scope Risks.

Output documents

Write to Docs/Design/ (templates in this plugin's templates/design/):

Docs/Design/
├─ FIRST_PLAYABLE.md        # core fun to validate, start/end state, in/out scope, success/failure/done conditions, manual checks
├─ DEVELOPMENT_ORDER.md     # ordered feature list: input → movement → camera → core action → targets → win/lose → restart
└─ PLAYTEST_HYPOTHESES.md   # falsifiable hypotheses (HYP-001 ...) about why this is fun

Hypothesis format

Each hypothesis must be falsifiable by watching someone play:

## HYP-001

### Hypothesis
The player enjoys controlling the direction and strength of physics-based pushes.

### How to validate
- Does the player retry after failing?
- Do they use a different strategy on the next attempt?
- Do they attribute the outcome to their own input?

### Failure signals
- The outcome feels random to them.
- They say luck matters more than control.
- They do not retry after the first failure.

Completion

Done when all three documents exist, every included feature traces to a rule ID in GAME_RULES.md, and at least one hypothesis exists. Then suggest /first-playable:bootstrap (requires an open Unity project).