New product from a one-line idea

You have a sentence, not a backlog. Greenfield helps you write a small product plan before you drown in code — then you build one feature at a time.

Best for	Empty repo / brand-new MVP
You’ll get	Notes in memory/ + a list of features like F-001
Not for	A single bug on an existing app → use simple feature or a hotfix

Picture it: idea → short plan → list of features → simple architecture → implement F-001, F-002, …

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When to use which path

Situation	Command
New product	sdd greenfield "…"
Feature on existing app	Simple feature
Tiny fix	sdd new "…" -w hotfix -y

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1. One-time setup

cd your-app   # or an empty folder
sdd init --here --ai copilot    # or grok | claude | ollama
sdd doctor

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2. Start from your idea

sdd greenfield "Team expense tracker for remote startups"

You’ll walk four steps (fill a short file each time):

1. Vision — who is it for, problem, how you know MVP worked
2. Requirements — clear “must / should” statements
3. Features — small items F-001, F-002, … (one PR each)
4. Architecture — simple system shape (keep it modest)

# After writing each file:
sdd next
# … until architecture is done …
sdd complete

When you complete, good content is copied into memory/ so later work can reuse it:

You wrote	Saved as
vision	memory/product.md
requirements	memory/requirements.md
features	memory/features.md
architecture	memory/architecture.md

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3. Build features one by one

sdd feature list
sdd feature start F-001
# normal loop: notes → sdd next → code → sdd verify → sdd complete
sdd feature start F-002

Each start creates a normal change folder and marks that backlog row in progress.

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How to write a feature row

## F-001: Capture expense

- **Status:** planned
- **Priority:** must
- **Workflow:** feature
- **Summary:** User adds amount, category, and photo receipt.
- **Requirements:** R-001
- **Notes:** Mobile first

Headings must look like ## F-001: Short name so the tool can read them.

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Friendly tips

• Keep vision small — the smallest useful product.
• One feature ≈ one PR.
• Blank templates don’t get saved into memory — write real sentences.
• First time with sdd? The 10-minute tutorial still helps.

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Limits (v1)

Works today	Not automatic yet
List and start F-001…	Marking features done when a pack completes
Promote plan into memory	Syncing edits both ways forever
Choose workflow per feature	Multiple products in one repo

When a feature ships, set Status to done in memory/features.md by hand (for now).

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Related

• What is a change pack?
• Simple feature
• Everyday loop
• CLI reference