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ontology-validator

Validate material sample annotations against ontology constraints — check that class names and property names exist in the ontology, verify domain and range…

Skill by HeshamFS

IndexedApache-2.0★ 83
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About

Validate material sample annotations against ontology constraints — check that class names and property names exist in the ontology, verify domain and range consistency for object property relationships, assess annotation completeness (required, recommended, and optional properties), and flag unknown or misspelled terms. Use when verifying that CMSO or other ontology annotations are correct before publishing, checking whether all required properties are present for a class like Crystal Structure or Unit Cell, auditing relationship triples between instances, or catching annotation errors early in a FAIR data workflow, even if the user only says "is my annotation correct" or "what am I missing."

Use cases: data, productivity

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What this skill can do and what it asks for, from its SKILL.md and code. Checked Oct 25, 2026.

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Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/ontology-validator

Tools it pre-approves 2

From allowed-tools in SKILL.md: the agent may use these without asking you each time.

  • Read,
  • Bash

What's inside

Skill name
ontology-validator
Description
Validate material sample annotations against ontology constraints — check that class names and property names exist in the ontology, verify domain and range consistency for object property relationships, assess annotation completeness (required, recommended, and optional properties), and flag unknown or misspelled terms. Use when verifying that CMSO or other ontology annotations are correct before publishing, checking whether all required properties are present for a class like Crystal Structure or Unit Cell, auditing relationship triples between instances, or catching annotation errors early in a FAIR data workflow, even if the user only says "is my annotation correct" or "what am I missing."
License
Apache-2.0
Allowed tools
Read,, Bash
Metadata
author: HeshamFS · version: 1.2.2 · eval_cases: 5 · last_reviewed: 2026-06-23 · security_tier: high · last_evaluated: 2026-06-24 · security_reviewed: true · agent_evaluation_status: not_revalidated · last_deterministic_eval: 2026-10-20
Instructions
187 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts
  • Pre-approves any shell command

Files (9)

  • CHANGELOG.md
  • SKILL.md
  • evals.json · evals/
  • asmo_constraints.json · references/
  • cmso_constraints.json · references/
  • validation_rules.md · references/
  • completeness_checker.py · scripts/
  • relationship_checker.py · scripts/
  • schema_checker.py · scripts/

SKILL.md (first lines)

# Ontology Validator

## Goal

Validate that material sample annotations comply with ontology constraints: correct class names, valid properties, consistent domain/range relationships, and required fields present.

## Requirements

- Python 3.10+
- No external dependencies (Python standard library only)
- Requires ontology-explorer's `cmso_summary.json` and `ontology_registry.json`

## Inputs to Gather

| Input | Description | Example |
|-------|-------------|---------|
| Annotation | JSON dict or list of annotation dicts | `{"class":"UnitCell","properties":{"has Bravais lattice":"cF"}}` |
| Class name | Class to check completeness for | `Crystal Structure` |
| Provided properties | Comma-separated property names | `"has unit cell,has space group"` |
| Relationships | JSON array of subject-property-object triples | `[{"subject_class":"Material","property":"has structure","object_class":"Crystal Structure"}]` |

## Decision Guidance

```
What do you need to validate?
├── An annotation (classes and properties are correct)
│   └── schema_checker.py --ontology cmso --annotation '<json>'
├── Completeness of a class annotation
│   └── completeness_checker.py --ontology cmso --class <name> --provided <props>
└── Object property relationships
    └── relationship_checker.py --ontology cmso --relationships '<json>'
```

## Script Outputs (JSON Fields)

| Script | Key Outputs |
|--------|-------------|
| `scripts/schema_checker.py` | `results.valid`, `results.errors` (each unknown_class/unknown_property error carries a `suggestions` array of nearest matches), `results.warnings`, `results.class_valid`, `results.properties_valid` |
| `scripts/completeness_checker.py` | `results.completeness_score`, `results.required_missing`, `results.recommended_missing`, `results.optional_missing`, `results.unrecognized` |
| `scripts/relationship_checker.py` | `results.valid`, `results.results`, `results.errors` |

## Workflow

1. After mapping a sample with ontology-mapper, pass the annotations to `schema_checker.py` to verify correctness.
2. For a specific class, use `completeness_checker.py` to see what required/recommended properties are missing.
3. When building relationships between instances, use `relationship_checker.py` to ensure domain/range consistency.

## Conversational Workflow Example

```
User: I annotated my sample as CrystalStructure with properties hasUnitCell and hasBasis.
      Is this correct and complete?

Agent: Let me both validate the annotation and check its completeness.

[Runs: schema_checker.py --ontology cmso --annotation
       '{"class":"Crystal Structure","properties":{"has unit cell":true,"has basis":true}}' --json]
[Runs: completeness_checker.py --ontology cmso --class "Crystal Structure"
       --provided "has unit cell,has basis" --json]

From schema_checker.py (results.warnings):
- has unit cell: valid for Crystal Structure
- has basis: domain_mismatch warning — its domain is "Unit Cell", not
  Crystal Structure (so this property belongs on the Unit Cell instance)

From completeness_checker.py (results, completeness_score = 0.5):
- **required_missing**: has space group

So: add "has space group" to the Crystal Structure annotation, and move
"has basis" onto the Unit Cell annotation. (The domain insight comes from
schema_checker.py's warnings; completeness_checker.py only reports the
missing required "has space group".)
```

## CLI Examples

```bash
# Validate an annotation
python3 skills/ontology/ontology-validator/scripts/schema_checker.py \
  --ontology cmso \
  --annotation '{"class":"Unit Cell","properties":{"has Bravais lattice":"cF"}}' \
  --json

# Check completeness
python3 skills/ontology/ontology-validator/scripts/completeness_checker.py \
  --ontology cmso \
  --class "Crystal Structure" \
  --provided "has unit cell,has space group" \
  --json

# Validate relationships
python3 skills/ontology/ontology-validator/scripts/relationship_checker.py \
  --ontology cmso \
  --relationships '[{"subject_class":"Computational Sample","property":"has material","object_class":"Material"}]' \
  --json
```

## Error Handling

| Error | Cause | Resolution |
|-------|-------|------------|
| `Class 'X' not found ... (did you mean 'Y'?)` | Invalid/misspelled class name | Apply the nearest-match `suggestions` from the error, or use ontology-explorer to find the correct name |
| `Property 'X' not found ... (did you mean 'Y'?)` | Invalid/misspelled property name | Apply the nearest-match `suggestions` from the error, or use property_lookup.py to search |
| `Annotation must be a dict` | Wrong input format | Provide valid JSON dict |
| `Relationships must be a non-empty list` | Wrong input format | Provide JSON array of relationship dicts |

## Interpretation Guidance

- **Errors** indicate definite problems (unknown class/property, range mismatch)
- **Warnings** indicate potential issues (domain mismatch — may be intentional for subclasses)
- **Completeness score**: 0.0-1.0 ratio of provided vs. total tracked
  properties. It weights required, recommended, and optional properties
  **equally**, so a moderate score (e.g. 0.5-0.67) can coexist with missing
  required properties. ALWAYS check `required_missing` first: a non-empty
  `required_missing` means the annotation is invalid regardless of the score.
- **required_missing**: must fix for valid annotation
- **recommended_missing**: should fix for quality
- **unrecognized**: may indicate typos or properties from a different ontology

From HeshamFS/materials-simulation-skills, Apache-2.0.

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Last commit (this folder)
Oct 21, 2026 (7 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Version
1.2.2
License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

ontology-validator skill. Agent Mart. https://agentmart.dev/skills/heshamfs-ontology-validator (last updated 2026-10-24)