Skill Claude CodeCodex
Expert guide for Amplitude Android SDK integration (Kotlin/Java). Use when tracking events, configuring autocapture, managing user identity, configuring batching or EU residency, implementing custom Enrichment/Destination plugins, migrating from legacy com.amplitude:android-sdk to modern…
Skill Claude CodeCodex
Expert guide for detecting, profiling, and resolving memory leaks in Android apps (Java, Kotlin, Compose, JNI). Use when analyzing memory usage, profiling heap dumps, fixing out-of-memory (OOM) issues, checking Compose lifecycle flow collections, resolving WebView/Handler leaks, or configuring LeakCanary. Triggers…
Skill Claude CodeCodex
Expert Android app startup performance optimization skill. Use when analyzing or improving Android app cold start, warm start, or hot start times. Applies to projects using Jetpack Compose, Hilt/Dagger, ContentProviders, ad SDKs, or any Android initialization bottlenecks. Triggers on phrases like "startup time", "app…
Skill Claude CodeCodex
Expert guide for Apple's native container CLI (apple/container) — the open-source, Swift-native, VM-per-container runtime for Apple Silicon macOS. Read this skill BEFORE answering any question about: installing or starting apple/container; container run/build/machine/volume/network commands; configuring config.toml…
Skill Claude CodeCodex
Enterprise CI/CD, optimization, security, & delivery expert. Covers GHA, GitLab CI, Jenkins, monorepos (Turbo, Nx, Bazel), containers (BuildKit, Kaniko), GitOps (Argo), delivery (Spinnaker, Kayenta, Fastlane, Flyway), OIDC, and Android. Use for: pipelines, caching, GitOps, monorepos, OIDC, DB migrations, mobile…
Skill Claude CodeCodex
Expert guide for designing, building, and optimizing reusable Jetpack Compose components. Applies 2026 best practices, Style API, slot APIs, Modifier.Node, strong skipping mode, recomposition optimization, and Detekt/Ktlint rules validation. Trigger this skill whenever the user asks about Jetpack Compose component…
Skill Claude CodeCodex
Expert guidance for writing and integrating high-performance AGSL/SkSL shaders in Jetpack Compose and Compose Multiplatform. Trigger this skill whenever the user mentions AGSL, shaders, RenderEffect, custom graphics modifiers, glassmorphism, blur, metaballs, or procedural rendering in Compose, even if they only ask…
Skill Claude CodeCodex
Deep architecture recovery, context gathering, and root cause analysis for unfamiliar or undocumented codebases. Use when asked to analyze a codebase, understand its architecture, map dependencies, gather context before a task, do architecture recovery, explore an unknown repo, or investigate a production…
Skill Claude CodeCodex
Expert guidance for Dagger and Hilt dependency injection in Android. Use when implementing DI, creating modules, configuring scopes, optimizing performance, testing with Hilt, setting up multi-module architecture, using assisted injection, or debugging DI issues. Triggers on "dagger", "hilt", "dependency injection"…
Skill Claude CodeCodex
Expert guidance for creating, optimizing, and implementing unified Web and Mobile DESIGN.md files. Make sure to use this skill whenever the user mentions design systems, design-md, UI/UX consistency, visual theme, design handoff to AI, Stripe/Linear/VoltAgent styles, dashboard layouts, mobile touch targets, safe…
Skill Claude CodeCodex
Expert guide for JetBrains Koog (Kotlin AI agents). Use whenever the user mentions Koog, AIAgent, ToolRegistry, strategy graphs, koog-ktor, history compression, MCP tools, structured LLM output, or building agents in a Ktor backend, Spring Boot service, Android/iOS/desktop KMP app, JS, or WasmJS. Also use for…
Skill Claude CodeCodex
Expert guidance on Kotlin Coroutines — structured concurrency, dispatcher selection, race condition prevention (Mutex/Channel/StateFlow), error propagation, Flow patterns, testing with runTest/TestDispatcher, and production optimization. Use this skill whenever the user writes coroutine code, asks about async Kotlin…
Skill Claude CodeCodex
Expert knowledge for Kotlin K2 compiler plugin development, architecture, optimization, and Kotlin 2.4.0 compatibility. Use when: building K2 compiler plugins (FIR + IR), debugging FIR/IR generation issues, implementing FirDeclarationGenerationExtension or IrGenerationExtension, migrating K1 plugins to K2…
Skill Claude CodeCodex
Expert guidance for building production-grade MCP (Model Context Protocol) servers in Kotlin using the official Kotlin Multiplatform SDK. Use this skill whenever the user is building, designing, debugging, or improving an MCP server in Kotlin — including tool registration, resource templates, prompt handling…
Skill Claude CodeCodex
Google KSP and KSP2 expert for Kotlin annotation processing, Gradle setups, and multiplatform (KMP) code generation. Triggers when: writing or reviewing Kotlin Symbol Processing (KSP) code; creating a SymbolProcessor or SymbolProcessorProvider; configuring KSP in Gradle; migrating from kapt to KSP or KSP1 to KSP2…
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…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: