Analyze log files by stripping ANSI escape sequences first. Use when asked to process, handle, read, or analyze log files that may contain terminal escape codes.

Apply type-safe bounds checking patterns using Index/Length types instead of usize. Use when working with arrays, buffers, cursors, viewports, or any code that handles indices and lengths.

Core design principles for the codebase - cognitive load, progressive disclosure, type safety, abstraction worth. Use when designing APIs, modules, or data structures.

Apply private modules with public re-exports (barrel export) pattern for clean API design. Includes conditional visibility for docs and tests. Use when creating modules, organizing mod.rs files, or before creating commits.

Run clippy linting, enforce comment punctuation rules, format code with cargo fmt, and verify module organization patterns. Use after code changes and before creating commits.