技術寫作

Implement robust error handling with user-friendly messages, specific exception types, centralized error boundaries, and graceful degradation strategies. Use this skill when writing try-catch blocks, handling exceptions and errors, creating error messages for users, implementing error boundaries in React or other frameworks, validating input and checking preconditions, handling API errors and external service failures, implementing retry strategies with exponential backoff, cleaning up resources in finally blocks, designing graceful degradation for non-critical failures, or preventing technical details and security information from being exposed to users. Apply this skill when handling errors in any code file, implementing error recovery mechanisms, or reviewing error handling approaches for robustness and security.

Use when migrating skills between repositories or extracting skills from a project into a reusable form. Handles copying, cleanup of project-specific references, and genealogy documentation.

Apply SQL optimization patterns including index usage, query rewriting, JOIN optimization, and window functions. Use when improving query performance or analyzing slow queries.This skill provides comprehensive SQL optimization patterns and best practices:- N+1 query elimination- Index optimization strategies- JOIN vs subquery performance- Window functions for complex aggregations- Query execution plan analysisTriggers: "optimize SQL", "slow query", "improve performance", "SQL最適化", "クエリ改善", "パフォーマンス向上"

Expert knowledge for Technology Layer modeling in Documentation Robotics

Comprehensive TypeScript best practices including type imports, security patterns, code structure, and early returns. Use when writing TypeScript code, reviewing for quality, implementing error handling, or ensuring type safety.

Master smart contract security best practices to prevent common vulnerabilities and implement secure Solidity patterns. Use when writing smart contracts, auditing existing contracts, or implementing security measures for blockchain applications.

Patterns for writing effective, maintainable tests

AndroidアプリのセキュリティレビューをOWASP Mobile Top 10 2024およびMASVS (Mobile Application Security Verification Standard) の観点で実施し、Markdownレポートを生成する。Use when: (1) Androidアプリのセキュリティ監査/レビュー依頼時 (2) 「セキュリティチェック」「脆弱性診断」「OWASP」「MASVS」キーワード時 (3) Androidプロジェクトのコードレビューでセキュリティ観点が必要な時 (4) 金融・医療アプリのセキュリティ評価時

Transform project ideas into requirements documentation focusing on user outcomes and functionality, not implementation. Use when partner describes a new project or feature idea and needs a PRD capturing requirements before implementation, when unclear what to build but not yet ready for technical planning

AI-assisted development workflow system for feature planning, session management, and quality assurance (v2.3). WORKTREE-CENTRIC - automatically scopes to current worktree's feature (worktree name = feature name). In feature worktrees, shows only relevant feature context. In main branch, shows dashboard of all worktrees. AUTO-ACTIVATES for session start (show priorities/NBA with Explore agent), feature work (load plan context with LSP symbol grounding), new features (spike mode with parallel sub-agents), context >70% (create handoff), UI changes (run Playwright tests), completed features (suggest archive), errors or failures (trigger RCA-PCA). Works with agent-docs/ folder structure. Modes are nba, work, spike, test, validate, sync, status, handoff, archive, rca-pca, tidyup. Use when working in codebases with agent-docs/ directory.

This skill should be used when the user asks to "write an economics paper", "draft a working paper", "edit finance writing", "review my econ paper", "write for a journal", or needs guidance on economics and finance writing. Based on McCloskey's "Economical Writing" with discipline-specific word lists and examples.

Search the web, library documentation, and GitHub repositories using Tavily, Context7, and GitHub Grep MCPs. Use when: (1) Looking up documentation for libraries or frameworks, (2) Searching for code examples or tutorials, (3) Finding API references or specifications, (4) Researching best practices or solutions, (5) Looking up error messages or troubleshooting guides, (6) Finding library installation instructions, (7) Searching for real-world code patterns in GitHub repositories, or (8) When you need current web information or documentation. Triggers: search, look up, find documentation, search web, lookup, find examples, search for, how to, tutorial, API reference, documentation for, error message, troubleshoot, best practices, find code examples, GitHub search.

Coordination documentation synchronization patterns. Covers .hestai/ structure management, worktree-based doc PRs, PROJECT-CONTEXT/APP-CONTEXT updates, and documentation placement rules. Use for HO delegation to system-steward for doc updates.

Maintain multilingual README versions (English primary, Chinese translation). Triggers: i18n, 翻譯, translate, 多語言, sync readme, 中英文, bilingual.

Forces documentation of the reasoning behind every significant design decision. Creates a decision log that explains WHY choices were made, alternatives considered, and trade-offs accepted. Prevents unjustified "default" choices.

Design and build professional APIs with REST, GraphQL, and gRPC. Master authentication, documentation, testing, and operational concerns.

Provides type-safe database access with Prisma ORM including schema definition, migrations, queries, and relations. Use when setting up database connections, defining data models, writing queries, or managing database migrations.

Use when writing SQL queries, optimizing database performance, or analyzing data

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.

自动分析 GitHub 仓库，获取并整理 README、文档、Issues、GitHub Actions、Releases 等所有重要信息，由 LLM 进行深度分析并生成智能 HTML 报告。