Skill Claude CodeCodex
Clean and reclaim disk space on a Mac using native CLI tools and a dry-run-first script. Use whenever the user mentions Mac disk space, System Data bloat, purgeable space, Finder vs df mismatch, Time Machine local snapshots, Xcode DerivedData or simulators, Docker images, Homebrew/npm/pip/pnpm/yarn/go caches, leftover…
Skill Claude CodeCodex
Diagnose and reduce macOS RAM pressure using kernel telemetry (memory pressure, compressor, swap rates), not fake 'free RAM'. Use whenever the user mentions Mac RAM, memory pressure, swap used, compressed memory, Activity Monitor Memory tab, a sluggish Mac with RAM full, RAM cleaners, sudo purge, kerneltask or…
Skill Claude CodeCodex
Expert guidance for writing, structuring, outlining, titling, and publishing high-engagement Medium articles. Use whenever the user mentions Medium, Boost nomination, Medium titles/subtitles/kickers, article outlines, key points from a topic, SEO slugs/canonicals, or drafting/editing a Medium post — even if they only…
Skill Claude CodeCodex
Expert guidance for offline-first KMP and Android architectures using Store5, Room, SQLDelight, Ktor. Always trigger this skill when designing repositories, databases, caching, offline sync, Fetchers, SourceOfTruth, Updaters, Bookkeepers.
Skill Claude CodeCodex
Optimize Claude Code and LLM prompts for token efficiency, prefix caching compliance, positional recall, and execution correctness. Use when writing/reviewing prompts, debugging agent errors/failures, managing context windows, selecting effort levels, choosing MCP vs CLI tools, designing subagents, or editing…
Skill Claude CodeCodex
Expert Python development guidelines covering Astral tooling (uv, ruff, ty), structured concurrency (TaskGroup, ExceptionGroup), high-performance serialization (msgspec, Pydantic v2), memory optimization, and no-GIL architecture. Trigger this skill whenever the user mentions Python libraries, writing Python scripts…
Skill Claude CodeCodex
Creates high-quality README and how-to documentation. Use when user says "create a README", "write a README", "make a how-to", "document this project", "create setup guide", "write installation guide", "help me document", or provides a project description and asks for docs. Produces structured, EPPO-compliant…
Skill Claude CodeCodex
Expert shell configuration, optimization, and automation for Bash, Zsh, and PowerShell. Use when optimizing shell startup times, profiling performance bottlenecks, implementing defensive scripting patterns, configuring modern CLI tools (fzf, tmux, Atuin), writing portable POSIX scripts, engineering Zsh interactive…
Skill Claude CodeCodex
Kotlin & Compose Multiplatform SOLID Expert. Applies SOLID principles with a strong preference for composition over inheritance (COI) to build professional, clean, maintainable, and testable mobile/multiplatform applications. Use when: designing architectures, refactoring deep class hierarchies, debugging class…
Skill Claude CodeCodex
Expert guidance for designing, building, orchestrating, and optimizing Claude Code subagents. Make sure to use this skill whenever the user mentions subagents, multi-agent systems, agent delegation, task routing, or the Agent SDK, even if they only ask for a basic agent definition.
Skill Claude CodeCodex
Ultimate Kotlin testing skill. Use this whenever writing, reviewing, or debugging ANY Kotlin test — unit, integration, property-based, or coroutine. Covers TDD (RED/GREEN/REFACTOR), Kotest + MockK + Kover, anti-pattern detection, and four-pillar quality framework. Triggers on: write a test, add coverage, why is this…