# Duck Prebuild

> Pre-build session with the rubber duck — runs BEFORE implementation, covering both a pre-coding design sketch and plan/spec review. Use when the user states implementation intent (\"build this for me\", \"build me X\") with no plan or code yet, when a plan/spec/RFC was just produced, or says \"duck design\", \"duck plan\", \"sketch first\", \"review this plan\". Not for code already written — use /duck-verify or /duck-review.

## Facts
- Page: https://tashan.sh/capability/skill-leejuoh-duck-prebuild
- tashan id: skill:LeeJuOh/duck-prebuild
- Source: https://github.com/LeeJuOh/claude-code-zero
- Type: skill
- Category: security
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 97.0
- Freshness: 93.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r duck-prebuild ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-12 by tashan (https://tashan.sh) from public evidence. Scorer s5.