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ai-regression-testing helps catch bugs AI-assisted development often misses, including incomplete fixes, stale assumptions, and regressions across sandbox and production paths. Use this ai-regression-testing skill for Regression Testing when an agent has changed API routes, backend logic, or bugfixes that need practical, repeatable checks. It is especially useful for DB-free sandbox-mode verification and review workflows that expose hidden branches.

using-superpowers is a session-start skill from obra/superpowers that forces skill lookup before any reply, helping agents discover and activate the right workflow first.

Install and use the test-driven-development skill to enforce strict TDD: write a failing test first, verify the failure, implement the minimum code, then refactor safely.

systematic-debugging is a root-cause-first debugging skill for bugs, flaky tests, build failures, and unexpected behavior. Learn the four-phase workflow, companion files, and when to use it before proposing fixes.

subagent-driven-development is a skill for executing implementation plans with a fresh subagent per task, then reviewing each result in two passes: spec compliance first, code quality second. It includes prompt templates for the implementer, spec reviewer, and code quality reviewer.

executing-plans helps agents follow a written implementation plan: review it first, execute tasks in order, run specified checks, stop on blockers, and hand off to a finishing workflow. Best for Project Management and other plan-led delivery.

frontend-design helps you turn vague UI ideas into distinctive, production-grade interfaces with real frontend code, strong aesthetic direction, and less generic AI styling.

setup-matt-pocock-skills prepares a repo for Matt Pocock’s engineering skills by detecting the issue tracker, mapping triage labels, and locating domain docs before writing the `## Agent skills` block. Use this setup and discovery skill when onboarding a new repo, switching repos, or refreshing agent context for `AGENTS.md`, `CLAUDE.md`, and `docs/agents/`.

vercel-react-best-practices is a Vercel Engineering skill that guides AI agents to optimize React and Next.js performance with prioritized rules for waterfalls, bundle size, and rendering.

web-design-guidelines reviews UI code against Vercel Web Interface Guidelines, fetching the latest rules and returning terse file:line findings for focused UX and accessibility audits.

The context-engineering skill helps you structure project context so agents follow conventions, reduce hallucinations, and stay focused. Use it when starting a session, switching tasks, or building a context-engineering guide for a codebase.

mama is a narration-style variant of the pua skill that keeps the same core rules but switches to a Chinese nagging-mom voice. Use it to install a reusable trigger pattern for persistent troubleshooting, debugging, and Prompt Writing workflows, with inherited escalation, checklists, and stronger follow-through.

next-best-practices is a practical Next.js skill for App Router work, covering file conventions, RSC boundaries, async APIs, data patterns, route handlers, bundling, and error handling.

darwin-skill helps improve SKILL.md files with a repeatable loop: evaluate, revise, test, then keep or revert changes. Built for Skill Authoring, it combines rubric scoring with prompt-based validation and supports visual result outputs from repo templates and assets.

product-manager-skills is a PM operator skill for Claude Code, Codex, Cursor, and Windsurf. It helps with PRD critique, SaaS metric diagnosis, roadmap tradeoffs, discovery planning, PM coaching, and PLG strategy. Built for product judgment, explicit assumptions, and sharper decisions for Product Management work.

The figma-create-design-system-rules skill generates project-specific design system rules for Figma-to-code workflows. Use it to encode repo conventions for components, tokens, layout primitives, file structure, and hardcoding boundaries so coding agents stay consistent across screens. Best with a connected Figma MCP server and an existing codebase.