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Create aesthetically beautiful interfaces following proven design principles. Use when building UI/UX, analyzing designs from inspiration sites, generating design images with ai-multimodal, implementing visual hierarchy and color theory, adding micro-interactions, or creating design documentation. Includes workflows for capturing and analyzing inspiration screenshots with chrome-devtools and ai-multimodal, iterative design image generation until aesthetic standards are met, and comprehensive design system guidance covering BEAUTIFUL (aesthetic principles), RIGHT (functionality/accessibility), SATISFYING (micro-interactions), and PEAK (storytelling) stages. Integrates with chrome-devtools, ai-multimodal, media-processing, ui-styling, and web-frameworks skills.

Apply Strunk's timeless writing rules to ANY prose humans will read—documentation, commit messages, error messages, explanations, reports, or UI text. Makes your writing clearer, stronger, and more professional.

Architectural planning and ADR creation. Use when evaluating feasibility, making technology choices, or defining system integration.

Complete knowledge domain for Cloudflare D1 - serverless SQLite database on Cloudflare's edge network.Use when: creating D1 databases, writing SQL migrations, configuring D1 bindings, querying D1 from Workers,handling SQLite data, building relational data models, or encountering "D1_ERROR", "statement too long","too many requests queued", migration failures, or query performance issues.Keywords: d1, d1 database, cloudflare d1, wrangler d1, d1 migrations, d1 bindings, sqlite workers,serverless database, edge database, d1 queries, sql cloudflare, prepared statements, batch queries,d1 api, wrangler migrations, D1_ERROR, D1_EXEC_ERROR, statement too long, database bindings,sqlite cloudflare, sql workers api, d1 indexes, query optimization, d1 schema

Design System & UI Kit Development with Figma 2025, Design Tokens, and Component Documentation

Syncs calculations documentation and JSDoc with actual behavior. Use after non-trivial changes to calculation modules.

High-performance semantic search and document parsing toolkit. Use PROACTIVELY for searching across documentation, YAML manifests, configuration files, or any text where semantic understanding is needed. Particularly effective when exploring unfamiliar codebases, finding conceptually related content, or when exact keywords don't match the desired information.

Run comprehensive Rust code quality checks including compilation, linting, documentation, and tests. Use after completing code changes and before creating commits.

Format, validate, and optimize Markdown documents for consistency, readability, and professional presentation

将 Plan Mode 的讨论结论固化为可执行的 Markdown 施工图纸。当用户完成 Plan 讨论、准备进入开发阶段时使用。生成 overview.md（战略层）、taskXX_*.md（战术层）、summary.md（审计层）三类文档，实现上下文序列化，避免 Plan 与 Code 偏航。

Enhanced docs validation with AI-powered features. Enhanced with Context7 MCP for up-to-date documentation.

Gestion du projet MyGGV GPS dans Archon. Utiliser pour la documentation, les tâches, la recherche dans la knowledge base (Supabase docs, MapLibre docs, etc.), et le suivi de projet.

Cross-language testing patterns: unit, integration, E2E testing strategies.Use when: writing tests, setting up test infrastructure, or improving coverage.Triggers: "test", "testing", "unit test", "integration test", "e2e","coverage", "mock", "fixture".

Process and generate multimedia content using Google Gemini API. Capabilities include analyze audio files (transcription with timestamps, summarization, speech understanding, music/sound analysis up to 9.5 hours), understand images (captioning, object detection, OCR, visual Q&A, segmentation), process videos (scene detection, Q&A, temporal analysis, YouTube URLs, up to 6 hours), extract from documents (PDF tables, forms, charts, diagrams, multi-page), generate images (text-to-image, editing, composition, refinement). Use when working with audio/video files, analyzing images or screenshots, processing PDF documents, extracting structured data from media, creating images from text prompts, or implementing multimodal AI features. Supports multiple models (Gemini 2.5/2.0) with context windows up to 2M tokens. | Sử dụng khi: AI, LLM, vision, embedding, phân tích hình ảnh, Gemini API.

Automatically applies when drafting or revising documentation to enforce repository voice, clarity, and navigation patterns.

Synchronize documentation with codebase - updates AUTO-GEN sections in CLAUDE.md, validates cross-references, and reports stale documentation

Use this skill when auditing the SND codebase for consistency, bugs, and documentation issues. Covers comprehensive audit procedures for scripts, skills, rules, and documentation.

Use when writing or changing tests, adding mocks, or tempted to add test-only methods to production code - prevents testing mock behavior, production pollution with test-only methods, and mocking without understanding dependencies

Expert README generation including project documentation, badges, and standard sections

This skill should be used when the user asks to "create a diagram", "draw architecture", "make a Mermaid diagram", "update the system diagram", "visualize data flow", or when generating flowcharts, module diagrams, or dependency graphs. Provides standards for clear, unambiguous Mermaid diagrams.