Essential command-line tools and system utilities.
Migrate prompts and code from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. Use when the user wants to update their codebase, prompts, or API calls to use Opus 4.5. Handles model string updates and prompt adjustments for known Opus 4.5 behavioral differences. Does NOT migrate Haiku 4.5.
Cross-verify Claude-generated plans and code using OpenAI Codex and Google Gemini CLI. Provides code review, plan validation, and comparative analysis. Use when needing second opinions on Claude's code or plans, validating technical decisions, or seeking consensus from multiple AI models.
Search for and install Agent Skills that give you specialized capabilities. Before starting work, ask might a skill exist that handles this better than my base knowledge? If the task involves specific technologies, frameworks, file formats, or expert domains. Search proactively, even if the user doesn't mention skills. Skills encode best practices, tools, and techniques you wouldn't otherwise have. Also use when users explicitly ask to find, install, or manage skills.
Foundation skill for integrating OpenAI ChatKit framework with custom backends. This skill should be used for initial ChatKit setup including server implementation, React component integration, authentication, context injection, and database persistence. For streaming UI patterns use chatkit-streaming. For interactive widgets and actions use chatkit-actions.
Guides creation of ChatGPT Apps with interactive widgets using OpenAI Apps SDK and MCP servers. Use when building ChatGPT custom apps with visual UI components, embedded widgets, or rich interactive experiences. Covers widget architecture, MCP server setup with FastMCP, response metadata, and Developer Mode configuration. NOT when building standard MCP servers without widgets (use building-mcp-servers skill instead).
Build OpenAI Apps SDK applications - interactive ChatGPT apps with MCP servers, React widgets, and rich UI components for conversational experiences
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
Authoritative templates and scaffolding for creating slash commands. This skill should be used when creating new commands, reviewing existing commands for template compliance, or understanding command structure. Contains YAML templates with section instructions and scaffolding scripts for generating command skeleton files.
Quality assurance and CodeRabbit learning system for Zammad MCP development. Use when creating PRs, implementing MCP tools, adding pagination, handling errors, or addressing CodeRabbit feedback. Provides checklists, pattern guides, and accumulated project learnings to prevent recurring issues.
Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.
Build beautiful, accessible UIs with shadcn/ui components. Use this skill when creating forms, dialogs, tables, sidebars, or any UI components in Next.js. Covers installation, component patterns, react-hook-form integration with Zod validation, and dark mode setup.
Sets up new projects or improves existing projects with development best practices, tooling, documentation, and workflow automation. Use when user wants to start a new project, improve project structure, add development tooling, or establish professional workflows.
Git workflow assistant for pull request creation, branch management, and merge coordination. Use when creating PRs, merging branches, resolving conflicts, or cleaning up session branches. Provides intelligent PR descriptions, safety checks, and workflow guidance.
Comprehensive testing patterns for React components with MSW, React Query, and Vitest. Use when writing tests, setting up mocks, testing API interactions, or ensuring 80% coverage. Keywords - testing, MSW, React Query, Vitest, mocks, coverage, API testing.
Pushinator push notification API via curl. Use this skill to send push notifications to mobile devices.
Windows PowerShell command patterns for terminal operations. Use when running commands, scripts, or terminal operations on Windows. Keywords - PowerShell, Windows, terminal, commands, scripts, never use &&.
Automated workflow for running tests and fixing failures systematically. Use when implementing the mandatory test workflow or fixing code quality issues. Keywords - testing, debugging, workflow, failures, systematic fixes.
Comprehensive Test Driven Development guide. Master testing, debugging, fixing bugs, QA workflows, unit tests, integration tests, and coverage analysis.
Comprehensive SecOps skill for application security, vulnerability management, compliance, and secure development practices. Includes security scanning, vulnerability assessment, compliance checking, and security automation. Use when implementing security controls, conducting security audits, responding to vulnerabilities, or ensuring compliance requirements.
