Development

Expert guidance for creating effective Cursor IDE rules with best practices, patterns, and examples

Expert guidance for creating effective Cursor IDE rules with best practices, patterns, and examples

Expert guidance for creating effective Cursor slash commands with best practices, format requirements, and schema validation

Use when creating GitHub Copilot instructions - provides repository-wide and path-specific formats, applyTo patterns, excludeAgent options, and natural language markdown style

Use when creating Continue rules - provides required name field, alwaysApply semantics, glob/regex patterns, and markdown format with optional frontmatter

React component architecture for creating composable, accessible components with data attributes. Use when creating/updating composable components, not for higher-level feature/page components.

Creates context-aware git commits with smart pre-commit checks, submodule support, and conventional commit message generation. Use when user requests to commit changes, stage and commit, check in code, save work, save changes, push my code, finalize changes, add to git, create commits, run /commit command, or mentions "git commit", "commit message", "conventional commits", "stage files", "git add", or needs help with commits.

This skill should be used when the user asks to "create a command palette", "build a command palette", "add command palette", "implement ⌘K search", "create search modal", "build keyboard navigation", "add command menu", "create Raycast-style interface", "build spotlight search", or mentions cmdk, command bar, command menu, or keyboard-first navigation. Provides comprehensive guidance for building professional command palettes with React, TypeScript, Tailwind, and modern tooling including cmd...

Prevent multiple PrismaClient instances that exhaust connection pools causing P1017 errors. Use when creating PrismaClient, exporting database clients, setting up Prisma in new files, or encountering connection pool errors. Critical for serverless environments.

Use when creating or publishing Claude Code hooks - covers executable format, event types, JSON I/O, exit codes, security requirements, and PRPM package structure

Expert guidance for creating Claude Code slash commands with correct frontmatter, structure, and best practices

Creates feature branches with optimized short naming, auto-incrementing, and commit type detection (feat/fix/refactor). Supports manual descriptions and auto-generation from uncommitted git changes. Use when user requests to create branch, start new branch, make branch, checkout new branch, switch branch, new task, start working on, begin work on feature, begin feature, create feature branch, run /create-branch command, or mentions "branch", "feature", "new feature", "feat", "fix", or "checko...

Create small, focused Pull Requests by splitting implementations into atomic steps. Prevents direct work on main/master branches and enforces safe Git workflows. Use when the user asks to commit changes, create PRs, or mentions git operations. Keywords: commit, PR, pull request, git, branch, main, master, コミット, プルリクエスト.

Use when creating agents.md files - provides plain markdown format with NO frontmatter, free-form structure, and project context guidelines for AI coding assistants

This skill should be used when the user asks to "create an ADT", "scaffold a discriminated union", "add a tagged union", "create Effect Schema union", or needs to create algebraic data types following the ADT library pattern with proper member files and barrel exports.

MANDATORY skill creation framework for ALL skill creation requests. USE WHEN user wants to create, validate, update, or canonicalize a skill, OR user mentions skill creation, skill development, new skill, build skill, OR user references skill compliance, skill structure, or skill architecture.

Analyzes existing iOS/macOS/Apple platform projects to create a comprehensive, phased plan for building a watchOS companion or standalone app. Use when users want to add watchOS support to an existing Apple platform app, create a Watch app version of their iOS app, or build watchOS features. The skill digests project architecture, identifies patterns, analyzes API compatibility, searches for current watchOS documentation, and produces a detailed implementation plan with API availability warni...

Use Verify for snapshot testing in .NET. Approve API surfaces, HTTP responses, rendered emails, and serialized outputs. Detect unintended changes through human-reviewed baseline files.

Use Slopwatch to detect LLM reward hacking in .NET code changes. Run after every code modification to catch disabled tests, suppressed warnings, empty catch blocks, and other shortcuts that mask real problems.

Create a utility service for cross-cutting concerns. Use when creating services for authentication, authorization, email, notifications, or other shared functionality that doesn't directly map to a domain entity.

Build responsive email templates using MJML markup language. Compiles to cross-client HTML that works in Outlook, Gmail, and Apple Mail. Includes template renderer, layout patterns, and variable substitution.

Organize DI registrations using IServiceCollection extension methods. Group related services into composable Add* methods for clean Program.cs and reusable configuration in tests.

Microsoft.Extensions.Options patterns including IValidateOptions, strongly-typed settings, validation on startup, and the Options pattern for clean configuration management.

Create and run unit tests following the project's architecture and guidelines (Robolectric, naming, location).