Claude Skills

WHEN testing any front-end UI with DOM Testing Library; behavior-first queries, userEvent flows, async patterns.

Optimize Claude Code skills for token efficiency using progressive disclosure and content loading order. Use when optimizing skills, reducing token usage, restructuring skill content, improving skill performance, analyzing skill size, applying 500-line rule, implementing progressive disclosure, organizing reference files, optimizing YAML frontmatter, reducing context consumption, improving skill architecture, analyzing token costs, splitting large skills, or working with skill content loading. Covers Level 1 (metadata), Level 2 (instructions), Level 3 (resources) loading optimization.

Invoke this skill whenever you are working on something related to YouTube. Assists in generating essential elements that drive engagement and discovery.

Use when starting any Deno project, choosing packages, configuring deno.json, or running CLI commands. Provides foundational knowledge for building modern Deno applications.

Use when building features that execute untrusted user code, AI-generated code, or need isolated code execution environments. Covers the @deno/sandbox SDK.

Use when scaffolding new Deno projects. Provides templates for Fresh web apps, CLI tools, libraries, and API servers with modern best practices.

This skill should be used when the user asks to "create a decorator", "write a decorator", "move logic into decorator", "clean logic out of the view", "isn't it decorator logic", "test a decorator", or mentions Draper, keeping views clean, or representation logic in decorators. Should also be used when editing *_decorator.rb files, working in app/decorators/ directory, questioning where formatting methods belong (models vs decorators vs views), or discussing methods like full_name, formatted_*, display_* that don't belong in models. Provides guidance on Draper gem best practices for Rails applications.

Send WhatsApp messages to users. After completing tasks, ask what they want next via WhatsApp and continue the conversation until they say they're done.

This skill should be used when the user asks to "write specs", "create spec", "add RSpec tests", "fix failing spec", or mentions RSpec, describe blocks, it blocks, expect syntax, test doubles, or matchers. Should also be used when editing *_spec.rb files, working in spec/ directory, planning implementation phases that include tests (TDD/RGRC workflow), writing Testing Strategy or Success Criteria sections, discussing unit or integration tests, or reviewing spec output and test failures. Comprehensive RSpec and FactoryBot reference with best practices, ready-to-use patterns, and examples.

This skill teaches how to use Miro MCP tools effectively for creating diagrams, documents, tables, and extracting context from Miro boards. Use when the user asks about Miro capabilities, wants to create content on Miro boards, or needs to work with Miro board data.

This skill should be used when the user wants to visualize data. It intelligently selects the most suitable chart type from 26 available options, extracts parameters based on detailed specifications, and generates a chart image using a JavaScript script.

This skill should be used when writing, reviewing, or improving RSpec tests for Ruby on Rails applications. Use this skill for all testing tasks including model specs, controller specs, system specs, component specs, service specs, and integration tests. The skill provides comprehensive RSpec best practices from Better Specs and thoughtbot guides.

This skill should be used when implementing features from Linear issues with full TDD workflow, automated planning, parallel code reviews (security and Rails best practices), systematic feedback implementation, and automated PR creation with Linear integration. Use when the user provides a Linear issue ID (e.g., "TRA-9", "DEV-123") and wants a complete implementation workflow from issue to PR.

Search and retrieve icon SVG strings from icon library. Returns up to 5 matching icons by default, customizable via topK parameter.

Process raw meeting transcripts from Granola or other sources into structured notes with frontmatter, action items, summary, and formatted transcript. Use this skill when the user asks to process a meeting transcript or provides a raw transcript that needs formatting.

Game UI design using Unity's UI Toolkit (USS/UXML/Flexbox). Includes game UI elements like HUD, health bars, inventory, skill bars, PanelSettings scaling, and Safe Area support. Use when: game UI design, HUD creation, USS/UXML styling, Flexbox layout, PanelSettings configuration

Generate structured narrative text visualizations from data using T8 Syntax. Use when users want to create data interpretation reports, summaries, or structured articles with semantic entity annotations. T8 is designed for unstructured data visualization where T stands for Text and 8 represents a byte of 8 bits, symbolizing deep insights beneath the text.

Game UI design using Unity's uGUI (Canvas/RectTransform/Anchors). Includes game UI elements like HUD, health bars, inventory, skill bars, mobile responsive design, and Safe Area support. Use when: game UI design, HUD creation, Canvas setup, mobile UI, Anchors configuration