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affaan-m

Cost optimization patterns for LLM API usage — model routing by task complexity, budget tracking, retry logic, and prompt caching.

affaan-m

iOS 26 Liquid Glass design system — dynamic glass material with blur, reflection, and interactive morphing for SwiftUI, UIKit, and WidgetKit.

affaan-m

Spring Security best practices for authn/authz, validation, CSRF, secrets, headers, rate limiting, and dependency security in Java Spring Boot services.

affaan-m

Test-driven development for Spring Boot using JUnit 5, Mockito, MockMvc, Testcontainers, and JaCoCo. Use when adding features, fixing bugs, or refactoring.

affaan-m

Swift 6.2 Approachable Concurrency — single-threaded by default, @concurrent for explicit background offloading, isolated conformances for main actor types.

affaan-m

Protocol-based dependency injection for testable Swift code — mock file system, network, and external APIs using focused protocols and Swift Testing.

affaan-m

A comprehensive verification system for Claude Code sessions.

affaan-m

Thread-safe data persistence in Swift using actors — in-memory cache with file-backed storage, eliminating data races by design.

affaan-m

Deployment workflows, CI/CD pipeline patterns, Docker containerization, health checks, rollback strategies, and production readiness checklists for web applications.

affaan-m

Python testing strategies using pytest, TDD methodology, fixtures, mocking, parametrization, and coverage requirements.

affaan-m

PostgreSQL database patterns for query optimization, schema design, indexing, and security. Based on Supabase best practices.

affaan-m

Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging. Use for Java Spring Boot backend work.