jackby03

Rust anti-patterns and common mistakes expert. Handles code review issues with clone abuse, unwrap in production, String misuse, index loops, and refactoring guidance.

Advanced async patterns expert. Handles Stream processing, backpressure control, select/join operations, cancellation, Future trait implementation, and async runtime optimization.

Rust coding conventions expert covering naming, formatting, comments, clippy, rustfmt, lints, code style, best practices, and idiomatic patterns.

Error handling expert covering Result, Option, panic strategies, custom error types with thiserror/anyhow, error propagation patterns, and context-rich error chains.

Advanced lifetime expert covering HRTB, GAT, 'static bounds, trait object constraints, type system conflicts, and lifetime elision edge cases.triggers: - lifetime - HRTB - GAT - higher-ranked - 'static - trait object - one type is more general - lifetime conflict--- # Advanced Lifetime and Type System Expert ## Core Question **Why won't this type conversion compile?** The type system's boundaries are often surprising.

Interior mutability expert covering Cell, RefCell, Mutex, RwLock patterns, borrow conflicts (E0596, E0499, E0502), and thread-safe mutation strategies.

Ownership, borrowing, and lifetime expert. Handles compiler errors E0382, E0597, E0506, E0507, E0515, E0716, E0106 and provides systematic solutions for memory safety patterns.

Performance optimization expert covering profiling, benchmarking, memory allocation, SIMD, cache optimization, false sharing, lock contention, and NUMA-aware programming.

Perform a structured code review with emphasis on correctness, regressions, and test gaps.

Create a React component following project conventions. Use when asked to build a UI component, widget, card, form, or page section.

GitHub Flow branching and collaboration workflow for hardbox. Use when creating a feature branch, opening or reviewing a pull request, naming branches, writing commit messages, preparing a release, resolving conflicts, or enforcing PR conventions.

Go software engineering best practices and standard project architecture for hardbox. Use when writing new Go code, adding packages or modules, designing interfaces, implementing error handling, writing tests, structuring a Go project, reviewing Go code for idiomatic style, or working with concurrency, contexts, or file I/O in Go.