django-expert
Use when building Django web applications or REST APIs with Django REST Framework. Invoke when working with settings.py, models.py, manage.py, or any Django project file. Creates Django models with proper indexes, optimizes ORM queries using selectrelated/prefetchrelated, builds DRF serializers and viewsets, and configures JWT authentication. Trigger terms: Django, DRF, Django REST Framework, Django ORM, Django model, serializer, viewset, Python web.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/jeffallan/claude-skills --skill django-expert- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads django-expert automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
Security audits
Independent scans of the skill's instructions and bundled files.
SKILL.md
The instructions your agent reads when the skill is triggered.
Django Expert
Senior Django specialist with deep expertise in Django 5.0, Django REST Framework, and production-grade web applications.
When to Use This Skill
- Building Django web applications or REST APIs
- Designing Django models with proper relationships
- Implementing DRF serializers and viewsets
- Optimizing Django ORM queries
- Setting up authentication (JWT, session)
- Django admin customization
Core Workflow
- Analyze requirements — Identify models, relationships, API endpoints
- Design models — Create models with proper fields, indexes, managers → run
manage.py makemigrationsandmanage.py migrate; verify schema before proceeding - Implement views — DRF viewsets or Django 5.0 async views
- Validate endpoints — Confirm each endpoint returns expected status codes with a quick
APITestCaseorcurlcheck before adding auth - Add auth — Permissions, JWT authentication
- Test — Django TestCase, APITestCase
Reference Guide
Load detailed guidance based on context:
| Topic | Reference | Load When |
|---|---|---|
| Models | references/models-orm.md | Creating models, ORM queries, optimization |
| Serializers | references/drf-serializers.md | DRF serializers, validation |
| ViewSets | references/viewsets-views.md | Views, viewsets, async views |
| Authentication | references/authentication.md | JWT, permissions, SimpleJWT |
| Testing | references/testing-django.md | APITestCase, fixtures, factories |
Minimal Working Example
The snippet below demonstrates the core MUST DO constraints: indexed fields, select_related, serializer validation, and endpoint permissions.
# models.py
from django.db import models
class Article(models.Model):
title = models.CharField(max_length=255, db_index=True)
author = models.ForeignKey(
"auth.User", on_delete=models.CASCADE, related_name="articles"
)
published_at = models.DateTimeField(auto_now_add=True, db_index=True)
class Meta:
ordering = ["-published_at"]
indexes = [models.Index(fields=["author", "published_at"])]
def __str__(self):
return self.title
# serializers.py
from rest_framework import serializers
from .models import Article
class ArticleSerializer(serializers.ModelSerializer):
author_username = serializers.CharField(source="author.username", read_only=True)
class Meta:
model = Article
fields = ["id", "title", "author_username", "published_at"]
def validate_title(self, value):
if len(value.strip()) < 3:
raise serializers.ValidationError("Title must be at least 3 characters.")
return value.strip()
# views.py
from rest_framework import viewsets, permissions
from .models import Article
from .serializers import ArticleSerializer
class ArticleViewSet(viewsets.ModelViewSet):
"""
Uses select_related to avoid N+1 on author lookups.
IsAuthenticatedOrReadOnly: safe methods are public, writes require auth.
"""
serializer_class = ArticleSerializer
permission_classes = [permissions.IsAuthenticatedOrReadOnly]
def get_queryset(self):
return Article.objects.select_related("author").all()
def perform_create(self, serializer):
serializer.save(author=self.request.user)
# tests.py
from rest_framework.test import APITestCase
from rest_framework import status
from django.contrib.auth.models import User
class ArticleAPITest(APITestCase):
def setUp(self):
self.user = User.objects.create_user("alice", password="<test-password>")
def test_list_public(self):
res = self.client.get("/api/articles/")
self.assertEqual(res.status_code, status.HTTP_200_OK)
def test_create_requires_auth(self):
res = self.client.post("/api/articles/", {"title": "Test"})
self.assertEqual(res.status_code, status.HTTP_403_FORBIDDEN)
def test_create_authenticated(self):
self.client.force_authenticate(self.user)
res = self.client.post("/api/articles/", {"title": "Hello Django"})
self.assertEqual(res.status_code, status.HTTP_201_CREATED)
Constraints
MUST DO
- Use
select_related/prefetch_relatedfor related objects - Add database indexes for frequently queried fields
- Use environment variables for secrets
- Implement proper permissions on all endpoints
- Write tests for models and API endpoints
- Use Django's built-in security features (CSRF, etc.)
MUST NOT DO
- Use raw SQL without parameterization
- Skip database migrations
- Store secrets in settings.py
- Use DEBUG=True in production
- Trust user input without validation
- Ignore query optimization
Output Templates
When implementing Django features, provide:
- Model definitions with indexes
- Serializers with validation
- ViewSet or views with permissions
- Brief note on query optimization
Knowledge Reference
Django 5.0, DRF, async views, ORM, QuerySet, select_related, prefetch_related, SimpleJWT, django-filter, drf-spectacular, pytest-django
Maintained by @jeffallan, Principal Consultant at Synergetic Solutions
FAQ
What does the django-expert skill do?
Use when building Django web applications or REST APIs with Django REST Framework. Invoke when working with settings.py, models.py, manage.py, or any Django project file. Creates Django models with proper indexes, optimizes ORM queries using selectrelated/prefetchrelated, builds DRF serializers and viewsets, and configures JWT authentication. Trigger terms: Django, DRF, Django REST Framework, Django ORM, Django model, serializer, viewset, Python web.
How do I install django-expert?
Run npx skills add https://github.com/jeffallan/claude-skills --skill django-expert in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/django-expert/ (personal) or .claude/skills/django-expert/ (project).
Which AI agents can use django-expert?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is django-expert safe to install?
Security partners have reviewed it: Gen Agent Trust Hub flagged risks; Socket passed; Snyk passed; Runlayer passed; ZeroLeaks passed. As with any skill, read the SKILL.md and bundled scripts before installing.
Who maintains django-expert?
It is published by jeffallan in jeffallan/claude-skills. It has 4,264 recorded installs.
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