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Apply these Windmill-specific patterns when writing Rust code in backend/.

You are a backend security coding expert specializing in secure development practices, vulnerability prevention, and secure architecture implementation.

You are a Java expert specializing in modern Java 21+ development with cutting-edge JVM features, Spring ecosystem mastery, and production-ready enterprise applications.

Node.js architecture and framework selection guidance based on deployment context and project requirements. \n \n Framework decision tree covers Hono (edge/serverless), Fastify (performance), NestJS (enterprise), and Express (legacy), with selection criteria tied to cold start time, ecosystem size, and team experience \n Covers layered architecture principles (controller, service, repository), async patterns (async/await vs Promise.all/allSettled), and centralized error handling with appropriate

Expert guidance for building scalable web scrapers and crawlers using Scrapy with best practices for spider development, data extraction, and pipeline management. \n \n Covers spider architecture, CSS/XPath data extraction, Item Pipelines, and middleware development for request/response handling \n Includes strategies for rate limiting, User-Agent rotation, proxy management, and handling JavaScript-rendered content with Scrapy-Splash or Scrapy-Playwright \n Provides error handling patterns, perf

Server-side automation for Google Sheets and Workspace apps with custom menus, triggers, dialogs, and email integration. \n \n Generates Apps Script code that installs via Extensions > Apps Script; supports custom menus, dialogs, sidebars, and automated triggers (on edit, time-driven, form submit) \n Handles email notifications, PDF exports, and external API integration with built-in error handling and batch operation patterns \n Requires one-time OAuth authorization per user; scripts run on Goo

Security review for TypeScript/Node.js applications. Evaluates code against OWASP Top 10, framework-specific patterns, and production-readiness criteria. Findings are classified by severity (Critical, High, Medium, Low) with remediation examples. Delegates to the typescript-security-expert agent for deep analysis.

Python 3.12+ development with FastAPI, Django, async patterns, and production tooling. \n \n Covers modern project structure, type hints with generics, and async/await patterns for I/O-bound operations \n Includes FastAPI patterns for building APIs with dependency injection, Pydantic models, and async request handlers \n Demonstrates testing strategies using pytest, async test fixtures, and mocking for async functions \n Recommends ruff for linting, mypy in strict mode, and pathlib for file oper

Use this skill when integrating BFL FLUX APIs into applications for image generation, editing, and processing.

Principles and decision-making for Node.js development in 2025. Learn to THINK, not memorize code patterns.