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Found 5,841 Skills
MySQL relational database. Covers queries, indexes, and optimization. Use when working with MySQL databases. USE WHEN: user mentions "mysql", "mariadb", asks about "AUTO_INCREMENT", "ON DUPLICATE KEY UPDATE", "GROUP_CONCAT", "mysql specific syntax" DO NOT USE FOR: PostgreSQL - use `postgresql` instead, MongoDB - use `mongodb` instead, Oracle - use `oracle` instead, SQL Server - use `sqlserver` instead
Use when needing APNs HTTP/2 transport details, JWT authentication setup, payload key reference, UNUserNotificationCenter API, notification category/action registration, service extension lifecycle, local notification triggers, Live Activity push headers, or broadcast push format. Covers complete push notification API surface.
Automatically diagnose and fix CI failures in the current PR. Retrieves failed logs from GitHub Actions, categorizes the failure (lint, format, type-check, test), applies targeted fixes, verifies locally, and commits/pushes. Use when CI fails after push.
Write cold emails that actually get responses. Covers investors, employers, mentors, partners — anyone you don't know yet. Strict 2-4 sentence formula with real examples that got replies from Evan Spiegel, Mark Cuban, and Elon Musk. Triggers on requests like "cold email", "write an email to...", "reach out to...", "email this investor", "email this founder", "outreach email", "networking email", or any request to contact someone you don't have a relationship with yet.
Scaffold a complete credits/token metering system for any app — database schema, backend middleware, payment webhooks, frontend state, and UI components. Goes from zero to "users can buy and spend credits" in one session.
Walk every branching path and boundary condition in content, report only unhandled edge cases. Orthogonal to adversarial review - method-driven not attitude-driven. Use when you need exhaustive edge-case analysis of code, specs, or diffs.
Implement Syncfusion WPF Sunburst Chart (SfSunburstChart) for hierarchical data visualization. Use this when working with sunburst charts, hierarchical data visualization, multi-level circular charts, or drill-down visualizations. This skill covers displaying organizational hierarchies, file system structures, sales data by region/category, and other multi-level categorical data in concentric circles for WPF applications.
QR Code Payment Assistant for Funding Wallet Auto-deduction. Supports C2C and PIX QR payments. Use when the user wants to buy/purchase/pay/transfer/send (买, 购买, 支付, 付款, 转账, 发送), confirm/cancel payment (确认, 取消), or query order status (查询, 订单). Requires QR code data from user. PIX QR codes (pix, br.gov.bcb.pix) are auto-detected.
Conduct technical and on-page SEO audits covering crawlability, site speed, mobile-friendliness, and content optimization. Use this skill when the user needs to improve search rankings, diagnose traffic drops, audit a website for SEO issues, or plan an SEO strategy — even if they say 'why is our traffic dropping', 'audit our SEO', 'how do we rank higher on Google', or 'our site is slow'.
Spec-driven development: plan → go → review loop with spec lifecycle states and a project-level feature ledger. Use for planning features, implementing from specs, refining specs, tracking what features exist across specs, and resuming work. Trigger on requests mentioning specs, requirements/design/tasks, spec-help, spec-plan, feature ledger, FEATURES.md, spec-ledger, `.kiro`. IMPORTANT: Never edit spec files without first reading this skill.
When the user wants to optimize multiple conflicting objectives, find Pareto-optimal solutions, or balance trade-offs between cost, service, quality, and sustainability. Also use when the user mentions "multi-objective," "Pareto optimization," "NSGA-II," "trade-off analysis," "scalarization," "weighted objectives," "goal programming," or "multiple criteria optimization." For single objective, see optimization-modeling.
Use when authoring or normalising a specialist skill, or preparing to ship a feature or release — defines the seven evidence categories every specialist skill must declare against and provides the canonical Release Evidence Bundle template. The contract spine that turns scattered validation skills into a coherent ship-readiness check.