# 5d Sdd

> 5D Spec-Driven Development - A complete methodology for building software through structured phases. Use when: (1) User wants to build something non-trivial, (2) User mentions '5D' or 'spec-driven development,' (3) Starting a new project or feature that needs careful planning, (4) User wants a structured approach to development. This skill orchestrates the full workflow across 10 phases from orientation to reflection.

## Facts
- Page: https://tashan.sh/capability/skill-tapania-5d-sdd
- tashan id: skill:tapania/5d-sdd
- Source: https://github.com/tapania/5d-skills
- Type: skill
- Category: other
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: not measured
- Freshness: not measured
- Evidence coverage: not measured
- Health: not measured
- Instruction depth: not yet graded
- Official: no

## Install

```sh
cp -r 5d-sdd ~/.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 2026-08-14 by tashan (https://tashan.sh) from public evidence. Scorer s5.