Use when you need to run tests for React core. Supports source, www, stable, and experimental channels.

This skill calculates key financial ratios and metrics from financial statement data for investment analysis

Run pytest tests with coverage, discover lines missing coverage, and increase coverage to 100%.

Interactive training for the GitHub Copilot CLI. Guided lessons, quizzes, scenario challenges, and a full reference covering slash commands, shortcuts, modes, agents, skills, MCP, and configuration. Say "cliexpert" to start.

Creates an integration testing plan for .NET data access artifacts during Oracle-to-PostgreSQL database migrations. Analyzes a single project to identify repositories, DAOs, and service layers that interact with the database, then produces a structured testing plan. Use when planning integration test coverage for a migrated project, identifying which data access methods need tests, or preparing for Oracle-to-PostgreSQL migration validation.

This skill should be used when the user asks to "test this website", "run exploratory testing", "check for accessibility issues", "verify the login flow works", "find bugs on this page", or requests automated QA testing. Triggers on web application testing scenarios including smoke tests, accessibility audits, e-commerce flows, and user flow validation using ScoutQA CLI. Use this skill proactively after implementing web application features to verify they work correctly.

Guide for adding a new IR instruction to the Hermes compiler. Use when the user asks to add, create, or define a new IR instruction (Inst/Instruction) in the Hermes intermediate representation. Covers all required files and the patterns for each.

Guidelines for writing and running tests in the Agent Framework Python codebase. Use this when creating, modifying, or running tests.

Guide for managing packages in the Agent Framework Python monorepo, including creating new connector packages, versioning, and the lazy-loading pattern. Use this when adding, modifying, or releasing packages.

Writes TypeSpec http-client-python generator mock API tests (azure/unbranded/generic) from a Spector case. Use when given a Spector case link or a PR link that modifies Spector cases under http-specs/azure-http-specs.

Error Pattern Safety Guidelines for Agentic Engines

Instructions for using the struct tag-based console rendering system in Go

Diagnose eBPF program verification failures from the PREVAIL verifier. Use this skill for linux-compatible eBPF programs verified in the standalone PREVAIL repo (external/ebpf-verifier). For programs using Windows-specific features (bpf2c pipeline, Windows helpers, ebpf-for-windows headers), use the 'verify-bpf' skill instead.

Core conventions and patterns for this codebase

Maintain the OpenVMM Guide and its code-sync mapping. Load when: (1) adding, removing, or moving Guide pages, (2) adding new device crates or CLI args that need doc coverage, (3) updating the doc-code-sync mapping table, or (4) auditing Guide freshness against code changes.

Azure Resource Manager SDK for Microsoft Playwright Testing in .NET. Use for MANAGEMENT PLANE operations: creating/managing Playwright Testing workspaces, checking name availability, and managing workspace quotas via Azure Resource Manager. NOT for running Playwright tests - use Azure.Developer.MicrosoftPlaywrightTesting.NUnit for that. Triggers: "Playwright workspace", "create Playwright Testing workspace", "manage Playwright resources", "ARM Playwright", "PlaywrightWorkspaceResource", "provision Playwright Testing".

Create Zustand stores with TypeScript, subscribeWithSelector middleware, and proper state/action separation. Use when building React state management, creating global stores, or implementing reactive state patterns with Zustand.

Explains how to create a fake following stripe-android's coding standards

Parse and analyze Visual Studio TRX test result files. Use when asked about slow tests, test durations, test frequency, flaky tests, failure analysis, or test execution patterns from TRX files.

Generate comprehensive pytest tests - use when generating tests, creating test suites, or testing Python code