# Taxonomy Validation

> Strategy for validating ontology consistency — check hierarchy, detect cycles, verify completeness.

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

---


# Taxonomy Validation

Validate the constructed ontology for structural integrity. Check for cycles in hierarchies, orphaned branches, inconsistent typing, and coverage gaps.

## Guiding Focus

An ontology that contradicts itself is worse than no ontology. Validation is not optional — it's the quality gate that separates useful structure from noise.

## Available Tactics

- consistency-checking — systematic integrity verification
- hierarchy-construction — repair broken hierarchies

## Budget Slice

| Metric | S | M | L |
|--------|---|---|---|
| Lint issues resolved | 5 | 15 | 30 |
| Hierarchy levels verified | 2 | 3 | 4 |
| Cross-checks performed | 3 | 8 | 15 |

## State Ledger Template

```
| Metric              | Target | Current | Status |
|---------------------|--------|---------|--------|
| Lint issues resolved| X      | 0       | ⬜     |
| Levels verified     | X      | 0       | ⬜     |
| Cross-checks done   | X      | 0       | ⬜     |
```

<HARD-GATE>
Cannot exit until 80% of budget met. Print state ledger before each iteration decision.
</HARD-GATE>

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## Available Tactics

Optional, no fixed order; the final leaf is always a sop.

| Tactic | When to use |
| --- | --- |
| hierarchy-construction | Tactic for building is-a and part-of hierarchies — establish parent-child relationships, verify transitivity, detect cycles. |
| knowledge-structuring-consistency-checking | Tactic for verifying ontology consistency — detect contradictions, cycles, orphans, and type violations. |

## Available SOPs

Optional, no fixed order; the final leaf is always a sop.

| SOP | When to use |
| --- | --- |
| gap-detection | SOP for finding structural gaps in the ontology — missing concepts, thin branches, disconnected clusters. |
| hierarchy-visualization | SOP for inspecting the current hierarchy structure — query graph to display parent-child relationships. |
| ontology-export | SOP for exporting ontology summary — generate a readable overview of the current ontology state. |

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