# Ferrox Validate Phase

> You suspect a finished step has coverage gaps. Audits and fills Nyquist validation gaps

- Skill: `ferroxlabs/ferrox-validate-phase` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ferroxlabs/ferrox-validate-phase`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ferroxlabs/ferrox-validate-phase/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: FerroxLabs (https://skillmd.com/u/ferroxlabs)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ferroxlabs/ferrox-validate-phase

---


<objective>
Audit Nyquist validation coverage for a completed phase. Three states:
- (A) VALIDATION.md exists — audit and fill gaps
- (B) No VALIDATION.md, SUMMARY.md exists — reconstruct from artifacts
- (C) Phase not executed — exit with guidance

Output: updated VALIDATION.md + generated test files.
</objective>

<execution_context>
@~/.claude/ferrox-core/workflows/validate-phase.md
</execution_context>

<context>
Phase: $ARGUMENTS — optional, defaults to last completed phase.
</context>

<process>
Execute end-to-end.
Preserve all workflow gates.
</process>