Data & AI

Convert dates from various formats to "reverse month" format (YYYY-MM), which is the ISO date format containing only the year and month components. Use when users need to extract year-month from dates, standardize month formats, or prepare dates for monthly aggregations and reporting.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.

Enable stricter TypeScript and linting checks to catch bugs early, especially useful when iterating with AI assistance.

This skill analyzes a git repository (local or remote) and automatically creates a professional 30-second explainer video featuring:

テストカバレッジ分析とテスト生成ガイダンス。coverage.jsonを解析し、未カバー行/ブランチを特定、優先度付きテスト作成提案を出力。トリガー: "カバレッジ分析", "coverage analyze", "テストカバレッジ向上", "未カバー行"

Expert knowledge for Application Layer modeling in Documentation Robotics

Expert on Plaid Transactions product for retrieving banking transactions. Covers transaction sync, categorization, webhooks, recurring transactions, and historical data retrieval. Invoke when user mentions Plaid Transactions, transaction history, bank transactions, or transaction categorization.

Build context-efficient, reusable skills using graph-based workflow orchestration with Claude Code subagents. Combines PocketFlow-inspired graph abstraction with multi-model optimization (Haiku for exploration, Sonnet for analysis). Use when building complex workflows, converting external frameworks to Claude skills, or optimizing for cost and context efficiency.

Research latest library documentation, industry best practices, and technical knowledge to automatically generate project-level skills. Use when asked to: (1) Research and create a skill for a library/framework, (2) Build a skill based on architectural patterns, (3) Generate skills from technical research, (4) Create domain-specific technical skills from web research, or (5) Any request combining research with skill creation.

Review and score engineering specs against a startup-focused quality rubric. Penalize over-engineering and reward simplicity.

Review a PR created through the spec/plan/implement flow. Analyzes changes against specification and provides actionable feedback. Only invoke when user explicitly requests to review a PR or review changes.

Create, improve, and troubleshoot Claude Code agent skills. Use when asked to make a new skill, write a SKILL.md file, improve skill discoverability, debug why a skill isn't activating, answer questions about skills, or review skill best practices.

Add comprehensive validation to Django models using validators, clean methods, and constraints. Use when implementing model validation, business rules, or data integrity checks.

Ruthless concision for AI prompts and context - "Not One Word Wasted"

Create a new Architectural Decision Record (ADR) with automatic numbering and standard template. Use when documenting significant architectural or design decisions in the mlir-sem project.

Expert React frontend developer with advanced Web3/blockchain experience and pixel-perfect design implementation. Use when building UI components, implementing Web3 features, styling with CSS, creating animations, or working on the OpenWork multi-chain dApp.

Design architecturally optimal ClickHouse data warehouses. Use when creating schemas, modeling data, optimizing queries, or making architectural decisions about ClickHouse tables, materialized views, projections, or dictionaries.

Complete config.json CRUD operations with validation, merge strategy, and error recovery

Skill for PHP/Laravel backend development following project conventions. Use when creating or editing PHP code, models, services, controllers, tests, or any backend logic. Loads all backend rules from .claude/rules/backend/ and .claude/rules/dataclasses/.

Optimize educational content specifically for Google NotebookLM processing, book generation, quiz creation, and flashcard development with enhanced metadata, cross-references, and AI-friendly formatting.