# 5d Refine

> Stress-test the plan through adversarial review and edge case analysis. Use when: (1) After PLAN phase in 5D-SDD workflow, (2) User wants to 'validate,' 'review,' or 'check' a plan, (3) Before committing significant resources to implementation, (4) Plan exists but hasn't been challenged. This phase catches plan-level errors before they become code-level errors.

## Facts
- Page: https://tashan.sh/capability/skill-tapania-5d-refine
- tashan id: skill:tapania/5d-refine
- Source: https://github.com/tapania/5d-skills
- Type: skill
- Category: devtools
- 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-refine ~/.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.