Claude Code skills, ranked and checked

Creates, edits and reviews draw.io diagrams, including XML editing, PNG conversion and AWS icons.

Works with Excalidraw files and diagrams, delegating the operations to subagents to protect the context window.

Helps deliver constructive feedback with the Situation-Behavior-Impact technique and a preparation model.

Documents the data a frontend needs so that backend developers can build the API for it.

Looks for 10x product opportunities and high-leverage feature improvements.

Creates detailed, sectioned implementation plans through research, stakeholder interviews and review by several LLMs.

Removes signs of AI-generated writing from text, based on Wikipedia's "Signs of AI writing" guide.

Views, creates and updates Jira issues and checks sprint status from the agent.

Analyses recent code changes in the git history and draws out the software engineering lessons in them.

Creates Marp presentation slides with seven built-in themes and support for custom themes.

Generates memes from more than 100 templates through the memegen.link API.

Guides the creation of software diagrams in Mermaid: class, sequence, flow, ER and C4 diagrams.

Covers Material UI v7 patterns: sx prop styling, theme integration, responsive design and MUI hooks.

Suggests better names for variables, functions and classes based on context and conventions.

Converts OpenAPI 3.0 JSON or YAML into TypeScript interfaces and type guards.

Searches the web and researches general questions with Perplexity AI.

Creates and manages Claude Code plugins with the correct structure, manifests and marketplace integration.

Guides written communication for developers: email structure, team messaging, meeting agendas and writing for non-technical readers.

Generates test plans, manual test cases, regression suites and bug reports for QA engineers.

Covers type-safe React with TypeScript for React 18 and 19: components, hooks, events and Server Components.

Teaches when not to use useEffect and what to use instead, following the official React docs.

Reduces the total size of a codebase on request, with a bias toward deleting code.

Clarifies ambiguous requirements through focused questions before implementation starts.

Creates a handoff document so another AI agent session can continue the work with full context.