Coding standards, frameworks, refactoring, and code review (15.8K skills)
Find repeated interface elements and shared visual values, then turn them into reusable components and design tokens, named values for colors or spacing. Update existing uses and document the additions within the project's design system.
Check code for complex logic, duplication, naming issues, and oversized functions. Get a quality report with file locations and severity levels, plus guidance on splitting complex code and extracting shared logic during reviews or after refactoring.
Implement pending tasks from an OpenSpec change, a planned set of development work. The skill reads relevant specifications and design files, makes focused code changes, and updates task completion as work progresses.
Guide substantial code changes through analysis, design, implementation, and review using CCG specialist agents. Choose a workflow suited to the task, coordinate file ownership, and run verification scripts before assessing the combined result.
Analyze code changes to identify affected modules and check whether documentation and tests were updated alongside them. Produce a report on change size, documentation status, and missing updates before committing or after design changes and refactoring.
Supports development with code quality and security checks, change impact analysis, documentation templates, and coordination across multiple agents. It defines checkpoints for new modules and refactoring, plus roles and file ownership rules for parallel work.
Check a software module’s folder structure, required README.md and DESIGN.md files, and whether documentation matches the code. Produce a report identifying missing content and issues to resolve before handoff.
Diagnose and improve slow web interfaces by measuring loading, rendering, interactions, and animations. The skill addresses images, JavaScript bundles, page layout, and network requests, then compares before-and-after results to verify improvements across devices and connection speeds.
Enhance existing interfaces with ambitious browser techniques, from scroll-linked animation and natural motion to smooth large-data displays. Compare implementation directions, build the selected approach, and refine it through browser previews, performance checks, and accessible fallbacks.
Coordinate multiple AI agents through code exploration, parallel implementation, review, and fixes. Defines roles, file ownership, task dependencies, shared progress records, and recovery procedures so separate contributions can be checked and combined into a final delivery.
Choose a programming language for a development task and find the corresponding language guide. This index maps web development, systems programming, automation, and security tools to options including Python, Go, Rust, TypeScript, Java, C/C++, and Shell.
Archive an OpenSpec change after checking its documents, task completion, and specification differences. The skill offers a choice about updating the main specifications, then moves the change into a dated archive and reports the result.
Create and configure Claude Code agents using Markdown files with YAML configuration headers. Define when each agent should run, write its responsibilities and workflow, choose models and tools, and check configuration and triggering behavior.
Set up Python projects and manage packages, isolated environments, and Python versions with uv. Includes migration guidance and lockfiles that record dependency versions, plus workflows for consistent installations in CI and Docker.
Review local skills for description quality, organization, writing style, and file structure. Get weighted scores, letter grades, and concrete improvement plans, or compare multiple skills to decide which issues to fix first.
Apply improvement plans from skill-quality-reviewer to Claude Skills. Groups edits by file, handles conflicting recommendations by priority, backs up originals, and verifies the updates before producing a report of changes and verification results.
Create or repair Claude skills in the current local environment. Clarify when each skill should run, streamline SKILL.md, organize supporting files, and check that referenced resources exist so the instructions remain consistent and reusable.
Create and organize Claude Code plugins with guidance on configuration files, commands, agents, skills, hooks, and MCP servers. Learn where components belong, how automatic loading works, and how to reference files across different installation locations.
Guides you through connecting external services to Claude Code plugins using MCP, a protocol for exposing services as tools. Covers connection types, configuration files, authentication, tool permissions, and testing.
Build Claude Code plugin hooks: automated checks triggered by tool use or session events. Get guidance on prompt and command hooks for validating actions, checking task completion, loading context, and testing configurations.
Guide team Git work with consistent commit messages, branch naming, and review practices. Follow concrete steps for everyday development, urgent fixes, releases, merge conflicts, and version tags, including guidance on when to use merge or rebase.
Apply a short quality checklist to everyday code changes. Read existing code first, keep edits focused, check types and common security risks, verify execution, remove debugging leftovers, and summarize what changed and its impact.
Create reusable slash commands, prompts invoked by typing a slash, for Claude Code. The skill explains Markdown structure, arguments, file references, tool permissions, and plugin integration so recurring tasks can follow a defined workflow.
Review code changes and pull requests for correctness, security, performance, and test quality. The skill helps prioritize issues, write specific and constructive feedback, and create shared review checklists and standards for a development team.