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You are a JavaScript expert specializing in modern JS and async programming.

Expert PostgreSQL optimization, replication setup, and advanced feature implementation. \n \n Covers query analysis with EXPLAIN, index design across B-tree/GIN/GiST/BRIN types, and JSONB storage strategies with containment queries \n Includes streaming and logical replication setup with lag monitoring via pg_stat_replication \n Provides VACUUM tuning, autovacuum configuration, bloat detection, and statistics refresh workflows \n Supports PostgreSQL extensions including PostGIS, pgvector, pg_trg

Type-safe, async-first Python 3.11+ code generation with strict validation and comprehensive testing. \n \n Generates fully type-annotated code with mypy strict mode validation, dataclasses, and modern Python patterns (3.10+ union syntax, async/await) \n Includes pytest test suite generation with fixtures, parametrization, and mocking; enforces >90% code coverage \n Validates output with black formatting and ruff linting; provides structured error handling and logging configuration \n Covers asy

Write, review, and improve SwiftData code using modern APIs and best practices. \n \n Validates code against core SwiftData rules including relationships, delete rules, autosaving, and FetchDescriptor patterns \n Checks predicates for safety and runtime crashes, with special handling for CloudKit constraints and unsupported operations \n Targets Swift 6.2+ with modern concurrency; recommends indexing strategies for iOS 18+ and class inheritance patterns for iOS 26+ \n Reports only genuine issues

Comprehensive code analysis covering security vulnerabilities, performance bottlenecks, maintainability issues, and best practice violations. \n \n Scans for critical security flaws including SQL injection, XSS, authentication gaps, unsafe deserialization, and credential exposure \n Identifies performance problems such as N+1 queries, inefficient algorithms, memory leaks, and unnecessary re-renders \n Evaluates code quality across duplication, function length, cyclomatic complexity, naming clari

$22

Modern C++20/23 specialist for writing, optimizing, and debugging high-performance systems code. \n \n Covers C++20 concepts, ranges, coroutines, template metaprogramming, and SIMD optimization with zero-overhead abstractions \n Enforces RAII, const-correctness, smart pointers, and comprehensive sanitizer/static analysis checks before delivery \n Includes reference guides for modern features, templates, memory management, concurrency patterns, and CMake build configuration \n Delivers header fil

Real-time stock quotes, fundamental analysis, and professional charts across global markets and crypto. \n \n Covers five command categories: real-time price quotes, candlestick and line charts with moving averages, fundamental metrics (PE, EPS, ROE, profit margins), earnings dates with consensus estimates, and 10-day historical trends \n Supports US stocks, Korean exchange tickers, cryptocurrency pairs, and forex with no API key required \n Generates high-resolution PNG charts with volume indic

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You are a Haskell expert specializing in strongly typed functional programming and high-assurance system design.