productivity▌

Design resource creation, cleanup, and scope using RAII, lazy initialization, and pooling patterns. \n \n Covers five lifecycle patterns: RAII with Drop trait, lazy initialization via OnceLock/LazyLock, connection pooling with r2d2/deadpool, guard-based scoped access, and transaction scope boundaries \n Includes decision framework for resource cost, scope determination, and error handling during cleanup \n Provides pattern templates for RAII guards and lazy singletons, plus common errors and ant

Use this skill when you need lane-style automation inside the CLI using:

Compile-time versus runtime polymorphism: generics, trait objects, and zero-cost abstraction patterns. \n \n Distinguishes static dispatch (generics, impl Trait ) from dynamic dispatch ( dyn Trait ), with decision guidance on when each is appropriate based on type knowledge, performance priorities, and collection heterogeneity \n Maps common type system errors (E0277, E0308, E0599, E0038) to underlying design questions rather than mechanical fixes \n Covers object safety constraints, monomorphiz

CLI wrapper for MCP servers, OpenAPI specs, and GraphQL endpoints without code generation. \n \n Supports three source types: MCP over HTTP/stdio, OpenAPI (JSON/YAML, local or remote), and GraphQL endpoints \n Dynamic command discovery with --list and --search filtering; inspect any command with --help before execution \n Built-in authentication: API key headers, OAuth (authorization code + PKCE), environment variables, and file-based secrets \n Output control via --jq for JSON filtering, --head

Derivatives-trading-portfolio-margin request on Binance using authenticated API endpoints. Requires API key and secret key for certain endpoints. Return the result in JSON format.

Test-driven development for Laravel applications using PHPUnit and Pest with 80%+ coverage (unit + feature).

Convert text to natural-sounding speech with single or multi-speaker audio generation. \n \n Two modes: Quick mode for instant single-voice MP3 output, and Script mode for multi-speaker dialogue with per-character voice assignment \n Automatic mode detection based on input structure; supports both plain text and structured scripts with character markers \n Built-in speaker selection with language support (Chinese and English) and preference saving to local config \n Configurable output modes: in

Battle-tested Mapbox style patterns and layer configurations for six common mapping scenarios. \n \n Includes ready-to-use JSON layer configurations for restaurant finders, real estate, data visualization, navigation, dark mode, and delivery/logistics maps \n Provides decision tree for selecting the right pattern based on content type, environment, user action, and platform \n Covers performance optimization techniques including zoom-based filtering, data-driven styling, and clustering for dense

Guidance for selecting, integrating, and managing Rust crates and ecosystem dependencies. \n \n Provides decision tables for common needs (serialization, async runtimes, HTTP, databases, CLI parsing) with recommended crates and evaluation criteria \n Covers language interop patterns including C/C++ bindings via bindgen / cbindgen , Python extensions with pyo3 , Node.js addons via napi-rs , and WebAssembly with wasm-bindgen \n Includes error code reference (E0433, E0603) with fixes, cargo feature

Deterministic WordPress repository inspection with structured JSON output for workflow guidance. \n \n Detects project kind (plugin, theme, block theme, WP core, Gutenberg, full site) and outputs a schema-validated JSON report including tooling, tests, and version hints \n Runs via Node.js detector script at repo root; outputs project.kind , signals , and tooling fields to guide downstream workflows \n Identifies PHP/Node tooling presence and test frameworks to inform which commands and conventi