VersoXBT

Guide for writing production-ready Dockerfiles with multi-stage builds, layer caching, security hardening, and optimized image sizes. Use when the user creates a Dockerfile, asks about Docker image optimization, mentions container security, or needs help with build performance. Trigger whenever Docker or container packaging is discussed.

Master Django ORM patterns: QuerySets, select_related, prefetch_related, F/Q objects, annotations, aggregations, and raw SQL safety. Use when the user writes Django database queries, asks about ORM optimization, encounters N+1 queries, or works with complex filtering and aggregation. Trigger when you see inefficient Django queries.

Best practices for designing MCP tools including naming conventions, input schemas, error responses, pagination, idempotency, and descriptions. Use when the user is designing tools for an MCP server, writing tool schemas, handling tool errors, or needs guidance on tool naming and input validation patterns.

Guide Python type annotations using the typing module: Protocol, TypeVar, ParamSpec, Generic, Literal, TypeAlias, overload, and dataclass field typing. Use when the user writes Python type hints, asks about typing, creates generic classes, defines protocols, or works with mypy/pyright. Trigger when you see untyped Python code that should be typed.

Build REST APIs with Django REST Framework: serializers, ViewSets, permissions, pagination, filtering with django-filter, throttling, and versioning. Use when the user builds Django APIs, asks about DRF patterns, implements CRUD endpoints, or needs API authentication and permissions. Trigger when you see Django views returning JSON manually instead of using DRF.

Prompt engineering patterns for Claude including system prompts, few-shot examples, chain-of-thought, structured output, templates, and prefilling. Use when the user is writing prompts, designing system instructions, extracting structured data, building prompt templates, or optimizing Claude responses for quality and consistency.

Implement structured logging and analyze logs to diagnose issues. Use when the user sets up logging, asks about log levels, needs to trace requests through distributed systems, or is analyzing log output to debug a problem. Apply when adding logging to any application.

Guide file and directory organization for maintainable codebases. Use when the user creates new files, asks where to put code, plans project structure, or when a file exceeds 400 lines. Apply when scaffolding new projects or refactoring large files into smaller modules.

Patterns for when and how to use Claude Code subagents via the Agent tool. Use when the user needs to delegate research, run parallel investigations, protect the main context window, or asks about subagent types like Explore or Plan.

Guide for deployment strategies including blue-green, canary, rolling updates, feature flags, and rollback procedures. Use when the user asks about deployment patterns, zero-downtime deployments, release strategies, or rollback plans. Trigger whenever deployment, release management, or production rollout is discussed.

Implement FastAPI dependency injection with Depends(), security dependencies, database session management, request-scoped deps, and testing with overrides. Use when the user builds FastAPI endpoints, manages database connections, implements auth, or asks about dependency injection. Trigger when you see repeated setup logic in endpoint functions that should be extracted to dependencies.

Write clean, idiomatic Go following community conventions and effective patterns. Use when the user writes Go code, designs packages, defines interfaces, uses struct embedding, writes receiver methods, organizes Go projects, or asks about Go best practices and conventions.