model-entity-validator SKILL.md skillA

model-entity-validator from smicolon/ai-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add smicolon/ai-kit/model-entity-validator@git:20260902.8af3db4

Pins git:20260902.8af3db4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
smicolon/ai-kit
Path
packs/django/skills/model-entity-validator/SKILL.md
Versions recorded
2
Latest version
git:20260902.8af3db4, committed Sep 2, 2026
First version recorded
Feb 15, 2026
Size
8,079 bytes
Repository stars
7
License
MIT

This skill should be used when the user asks to "create a model", "add a Django model", "create database table", "add entity", "define schema", or when writing class definitions inheriting from models.Model. Validates BaseModel inheritance pattern.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Model/Entity Validator

Enforces the BaseModel inheritance pattern (UUID primary keys, audit timestamps, soft deletes) for all Django models.

## Activation Triggers

This skill activates when:
- Creating new model files
- Modifying existing models
- Mentioning "model", "database", "schema", "table"
- Writing class inheriting from `models.Model`
- Running migrations
- Discussing data structure

## Core Principle: BaseModel Inheritance

**NEVER repeat UUID/timestamp fields.** All models inherit from BaseModel.

```python
# ❌ WRONG - Repeating fields
class User(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    is_deleted = models.BooleanField(default=False)
    email = models.EmailField()

# ✅ CORRECT - Inherit from BaseModel
import core.models as _core_models

class User(_core_models.BaseModel):
    email = models.EmailField(unique=True)
```

## Validation Process

### Step 1: Check if BaseModel Exists

Before any action, check if the project has a BaseModel:

```python
# Search for BaseModel in (in order):
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add smicolon/ai-kit/model-entity-validator@sha256:a16d2f7dca3f8aae

The line at the top of this page pins the label git:20260902.8af3db4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_phwcoxuoiilcysxd.svg)](https://markdownregistry.com/a/art_phwcoxuoiilcysxd)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Feb 15, 2026 and Sep 2, 2026, about one every 199 days.

versioncommittedcommitsizeaudit
git:20260902.8af3db4 latest2026-09-02 8af3db4 8,079 BA view · diff
git:20260215.92455aa2026-02-15 92455aa 8,034 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8079 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

smicolon/ai-kit · 7 stars · license MIT · pushed 2026-09-15 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_phwcoxuoiilcysxd
GET https://markdownregistry.com/api/v1/resolve?ref=smicolon/ai-kit/model-entity-validator
GET https://markdownregistry.com/api/v1/blob/a16d2f7dca3f8aae4ee72ec1890a66fd6d8a6ea74d97a24db746c52610c0f6f8

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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