Evidence-based endurance coaching protocol (v11.31). Use when analyzing training data, reviewing sessions, generating pre/post-workout reports, planning workouts, answering training questions, or giving endurance coaching advice. Always read or fetch athlete JSON data before responding to any training question.
Generate production-ready Product Requirements Documents (PRDs) for software systems and AI-powered features. The skill ensures clear problem framing, measurable outcomes, scoped functionality, testable requirements, technical feasibility, risk awareness, and stakeholder alignment.
Guide for creating effective skills with specialized knowledge and workflows.
Receive and verify Chargebee webhooks. Use when setting up Chargebee webhook handlers, debugging Basic Auth verification, or handling subscription billing events.
Receive and verify Paddle webhooks. Use when setting up Paddle webhook handlers, debugging signature verification, or handling subscription events like subscription.created, subscription.canceled, or transaction.completed.
Receive and verify Stripe webhooks. Use when setting up Stripe webhook handlers, debugging signature verification, or handling payment events like payment_intent.succeeded, customer.subscription.created, or invoice.paid.
Best practices for writing R package tests using testthat version 3+. Use when writing, organizing, or improving tests for R packages. Covers test structure, expectations, fixtures, snapshots, mocking, and modern testthat 3 patterns including self-sufficient tests, proper cleanup with withr, and snapshot testing.
Time and timezone utilities for getting current time and converting between timezones. Use when: (1) Getting current time in any timezone, (2) Converting time between different timezones, (3) Working with IANA timezone names, (4) Scheduling across timezones, (5) Time-sensitive operations. Triggers: "what time is it", "current time", "convert time", "timezone", "time in [city]".
Review an Elastic agent skill against official documentation for accuracy, completeness, and coverage gaps. Use when a writer wants to review, audit, or validate a skill from a repository of agent skills.
Analyze terms of service and privacy policies to identify concerning clauses, hidden permissions, and user rights implications
Create appropriate non-disclosure agreements for different business contexts with balanced terms and proper scope definitions
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) that ensures understanding before attempting solutions
Use when beginning any design process - orchestrates gathering context, clarifying requirements, brainstorming solutions, and documenting validated designs to create implementation-ready design documents
Use after brainstorming completes - writes validated designs to docs/design-plans/ with structured format and discrete implementation phases required for creating detailed implementation plans
Use when creating or developing anything, before writing code or implementation plans - refines rough ideas into fully-formed designs through structured Socratic questioning, alternative exploration, and incremental validation
Use after initial design context is gathered, before brainstorming - resolves contradictions in requirements, disambiguates terminology, clarifies scope boundaries, and verifies assumptions to prevent building the wrong solution
微信支付商品券接入助手，提供券类型选型、API代码示例（Java/Go）、开发参数校验、接口报错排查和上线质量检查。Use when user mentions "商品券", "优惠券接入", "发券", "核销", "创建商品券", "商品券代码", "签名报错", "验签失败", "回调收不到", "Request-Id", "品牌直连", "服务商模式", or asks to "接入商品券", "生成发券代码", "排查接口报错", "检查签名逻辑".
