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Found 1,684 Skills
WatermelonDB models, observation patterns, and React integration. Use when writing or debugging model code, observers (findAndObserve, query.observe), or screens that display live-updating DB data.
Manage SLAS (Shopper Login and API Access Service) clients for B2C Commerce (SFCC/Demandware) with the b2c cli. Use when configuring shopper authentication, creating API clients for PWA/headless, managing OAuth scopes (including custom scopes like c_loyalty), or debugging token issues. SLAS is for shopper (customer) authentication, not admin APIs.
Comprehensive R package for command-line interface styling, semantic messaging, and user communication. Use this skill when working with R code that needs to: (1) Format console output with inline markup and colors, (2) Display errors, warnings, or messages with cli_abort/cli_warn/cli_inform, (3) Show progress indicators for long-running operations, (4) Create semantic CLI elements (headers, lists, alerts, code blocks), (5) Apply themes and customize output styling, (6) Handle pluralization in user-facing text, (7) Work with ANSI strings, hyperlinks, or custom containers. Also use when migrating from base R message/warning/stop, debugging cli code, or improving existing cli usage.
Receive and verify WooCommerce webhooks. Use when setting up WooCommerce webhook handlers, debugging signature verification, or handling e-commerce events like order.created, order.updated, product.created, or customer.created.
Conduct structured interviews to gather requirements, clarify specifications, or understand context. This skill should be used when starting a new task that requires understanding user intent, requirements, technical specifications, or context. It supports various interview types including requirements definition, debugging investigation, architecture review, and general information gathering.
A complete guide to developing plugins for the MusicFree music player. Triggered when users request to write, create, or develop MusicFree plugins, or to adapt a music website or API into a MusicFree plugin. Covers the full process including plugin protocols, media type definitions, method signatures, sandbox environment, site analysis, local debugging, release and updates, etc. This Skill is designed for AI execution, guiding AI to collaborate with beginners to complete plugin development.
Expert iOS development skill covering SwiftUI, UIKit, Core Data, App Store guidelines, and performance optimization. Use this skill when building, reviewing, or debugging iOS apps - views, navigation, data persistence, animations, or submission preparation. Triggers on SwiftUI layout and state management, UIKit view controller lifecycle, Core Data model design and migrations, App Store Review Guidelines compliance, memory and rendering performance profiling, and Swift concurrency patterns for iOS.
Conduct an interactive discovery interview to produce a structured product specification. Triggers: write a spec, PRD, feature spec, requirements, product requirements, scope a project, brainstorm a feature, flesh out an idea, plan a new project. Uses AskUserQuestion for all user choices; WebSearch/WebFetch when the user wants research. Outputs: user stories, acceptance criteria, technical constraints, prioritized requirements in docs/specs/ per SPEC_TEMPLATE.md. Do NOT use for: implementation, code review, debugging, refactors, or when the user already has a complete spec they only want edited.
Run browser encrypted JS in Node.js (environment patching). env_core.js provides function disguise/prototype chain/Proxy engine, Claude writes stubs on demand in run.js according to the diagnosis report. TRIGGER when: user says "environment patching", "module extraction", "run in Node", "webpack module extraction", "environment simulation", "run JS in Node", or needs to run independently without browser after finding the encryption entry. DO NOT TRIGGER when: only debugging in browser, doing AST deobfuscation, or writing ordinary Node.js code.
WebAssembly runtime skill using wasmtime. Use when running WASM modules with wasmtime CLI, working with WASI preview2, using the component model, embedding wasmtime in Rust applications, limiting execution with fuel metering, or debugging WASM with DWARF in wasmtime. Activates on queries about wasmtime, WASI, WASM component model, wasmtime embedding, WIT interfaces, fuel metering, or server-side WebAssembly.
Inspects and redrives jobs that exhausted all retries. Use when handling failed queue jobs, debugging processing errors, or implementing retry strategies.
Master end-to-end testing to build reliable test suites that catch bugs, improve confidence, and enable fast deployment. Use when implementing E2E tests, debugging flaky tests, or establishing testing standards.