Skill Claude CodeCodex
Implements custom JavaScript data structures: queues, deques, stacks, linked lists, cons lists, circular buffers, unrolled lists, tries, heaps, graphs, LRU caches, CRDTs, pools, structs. Use when building or choosing non-native collections, optimizing enqueue/dequeue, designing persistent lists, or when the user asks…
Skill Claude CodeCodex
Apply error handling and recovery patterns in JavaScript/TypeScript or Node.js. Use when implementing error handling, retry logic, or when the user mentions domain errors, error recovery, error escalation.
Skill Claude CodeCodex
Apply Metarhia JavaScript style. Use when writing or editing .js, .mjs, .ts files (with certain corrections for typescript), formatting code, or when the user asks about code style or linting.
Skill Claude CodeCodex
Choose and use native JavaScript collections for Big-O, readability, semantics, naming, stability, or testability. Use when working with Map, Object, Set, Array, WeakMap, WeakSet, TypedArray, or deciding among built-in collections. For custom queues, lists, heaps, tries, and related structures, use the data-structures…
Skill Claude CodeCodex
Apply Gang of Four and related design patterns in JavaScript and TypeScript. Use when implementing creational, structural, or behavioral patterns, or when the user mentions factories, builder, prototype, flyweight, singleton, object pool, adapter, wrapper, decorator, proxy, bridge, composite, facade, chain of…
Skill Claude CodeCodex
Operate metautil package ADTs — ConsList, Struct, Queue, Stack, Deque, List, Trie, UnrolledList, CircularBuffer. Use when importing or calling these classes from metautil. For native Map/Object/Set/Array, use js-data-structures. For custom data structures, use data-structures.
Skill Claude CodeCodex
Prepare an npm package for publishing. Handles version bump, CHANGELOG update, typings check, test run, README refresh, package.json audit, and npm pack verification. Use when the user asks to prepare a release, bump version, publish a package, or do release prep.