← Day 03: Plan DAY 03 · BRIEFING AND GATE

What is the smallest thing worth building, and how?

Today you set what the MVP must prove before you build, test a prototype on two people, and set up the repository Claude Code will build in.

MVP objectiveThreshold firstPrototypeData modelADR 0001CLAUDE.md

Present slides Full screen, one slide at a time · 7 slides

TODAY 01

What you will leave with today

An MVP objective with a threshold, written before building
A one-screen clickable prototype as an Artifact, tested on two people
A data model that covers the value moment, and ADR 0001
A repository with Claude Code and CLAUDE.md importing the Product Book

OUTPUT · product/03-plan.md + decisions/0001-architecture.md + CLAUDE.md committed

RECAP · DAY 2 02

From proposition to plan

OBJECTIVEWhat this MVP must prove about the first value moment
THRESHOLD FIRSTThe number that counts as success, written and dated before building
PROTOTYPEOne clickable screen; two people try it while you watch and keep quiet
DATA MODELThe nouns in the value moment and how they relate
ADR 0001Django by default, against one alternative, with the reason

Plan is where yesterday’s evidence becomes decisions you can check later.

WORKED EXAMPLE · TASKBRIDGE 03

TaskBridge: an objective you can fail

Starting point

“Objective: see if shift leads find TaskBridge useful.”

Reframed

Objective: incoming leads pick up unfinished work from TaskBridge, not the group chat. Threshold, dated Day 3 before building: 2 of 2 testers accept a handed-over job in under two minutes, unaided. Illustrative.

Ask

How would you know if the weak version had failed?
Why does the date matter?
What would you do if only 1 of 2 succeeded?

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