One-Page GDD

Mechanical template pack. No AI. Fills a CharterPlan with labeled prompts you replace — not generated game text.

New Plan

ArTchie / Charter / New Plan (or New Plan in Open Plan) lists two templates:

• Blank — empty sections, three unnamed pillars, milestones Prototype → Vertical Slice → Alpha → Beta → Gold.
• One-Page GDD — the same section scaffold, with fillable prompts in the fields below. Milestones stay the default five names.

Create still writes Assets/CharterPlans/<SafeTitle>.asset and assigns it in Open Plan.

What the pack fills

Section	Prompt
Vision	Two short lines: [the game in one sentence] then [who plays and why they stay]
Pillars	Three slots. Names empty (you name them). Each useWhenDeciding is a short decision test — no “Use when deciding:” prefix (fantasy/fiction; loop feel/verbs; scope/tone/session)
Core loop	Short [prompts] in verbs, state change, feedback, hook. No “Verbs:” / “State change:” prefixes
Features	Two example Could rows (loop-or-pillar feature; later delight). Short notes, not invented play
Vertical slice	Brief is only the playable path. Duration / must-represent / polish-bar / exit-notes each have their own short [prompt]. Five unchecked checklist rows (core loop playable, one pillar proved, polish bar met, duration hit, no blocker bugs)
Scope	Short In / Out bullets
Risks	One example row (medium likelihood, high impact). Short name, mitigation, owner [prompts]
Milestones	Unchanged names: Prototype, Vertical Slice, Alpha, Beta, Gold. done starts unchecked.

Replace the bracketed [prompts] with the real plan. Pillar names start empty on purpose so the completeness checklist still asks for ≥1 named pillar.

Apply to the current plan

In ArTchie / Charter / Open Plan, assign a plan, then Templates. Pick Blank or One-Page GDD. Confirm overwrite. That replaces vision, pillars, loop, features, slice, scope, risks, and milestones on the current asset. Title and file path stay. Undo is available in this Editor session (RegisterCompleteObjectUndo).

Completeness checklist

When a plan is assigned, Open Plan (and the asset inspector) shows a short mechanical checklist — empty vs filled, scored as N / 5 · NN% (Ready when all five are filled), not an A–F grade:

• Vision
• Named pillar (≥1)
• Loop verbs
• Slice brief
• Milestone (≥1)

Prompt text counts as filled. Default milestone names count. Empty pillar names do not.

Export

Markdown export and the completeness percent are in Documentation/Export.md. The Features MoSCoW matrix and CSV are in Documentation/Moscow.md. Pillars 3–5 editor and feature-vs-pillar fit are in Documentation/Pillars.md. Core loop cycle form and Mermaid text are in Documentation/CoreLoop.md. Vertical slice definition and exit-criteria checklist are in Documentation/VerticalSlice.md. Risk register and milestones map are in Documentation/RiskMilestones.md.

See Documentation/NewPlan.md and Documentation/OpenPlan.md.