git:20260513.29c281c to git:20260513.58e49a6

2 added, 2 removed. Audit A to A.

---

name: thin-plan

- description: Convert a mini-spec into 3-7 vertical implementation slices that each produce observable behavior and can be verified independently.

+ description: Convert a mini-spec into 3-7 observable vertical slices.

---

# Thin Plan

## Purpose

Convert the mini-spec into 3-7 vertical implementation slices.

## When to use

- Use when `SPEC.md` exists and implementation needs a short, ordered path.

+ Use when `SPEC.md` exists and implementation needs a short ordered path.

## Inputs

- `SPEC.md`

- `CONTEXT.md`

- Existing repo structure

- Available verification commands

## Workflow

1. Identify the smallest end-to-end behavior.

2. Create 3-7 slices that each produce observable behavior.

3. Make every slice independently verifiable.

4. Keep each slice to the fewest files possible.

5. Avoid horizontal architecture-only tasks unless required.

6. Record dependencies, risks, and verification strategy.

7. Write `PLAN.md` and `TODO.md`.

## Outputs

- `PLAN.md`

- `TODO.md`

## Stop conditions

- Each task has a visible result and a check.

- Planning reveals a missing spec decision.

## Anti-patterns

- Planning all backend, then all frontend, then all tests.

- Creating broad tasks that cannot be finished in one session.

- Treating setup work as progress when no behavior changes.