rileyhilliard/claude-essentials

writer

Writing style and tone guide for human-sounding content. Use when writing documentation, READMEs, commit messages, PR descriptions, blog posts, LinkedIn posts, social media content, or any user-facing content.

原文の言語: 英語

executing-plans

Executes implementation plans directly with a verification gate and conditional code review. Use when carrying out a written plan step by step; delegates to subagents only for large, genuinely independent, parallelizable work.

原文の言語: 英語

fixing-flaky-tests

Diagnose and fix tests that pass in isolation but fail when run concurrently. Covers shared state isolation, resource conflicts, and timing-based flakiness.

原文の言語: 英語

optimizing-performance

Measure-first performance optimization that balances gains against complexity. Use when addressing slow code, profiling issues, or evaluating optimization trade-offs.

原文の言語: 英語

post-mortem

Review a completed session to extract actionable improvements. Identifies DX friction, documentation gaps, architectural confusion, anti-patterns, process failures, and skill/config improvements. Uses progressive disclosure for targeted investigation types.

原文の言語: 英語

strategy-writer

Produces executive-quality strategic documents in The Economist/HBR style. Use when writing strategy memos, market analysis, business cases, customer research reports, or any document for Product, Design, and Business leaders. Customer-led, evidence-based,…

原文の言語: 英語

systematic-debugging

Debugging framework that finds root causes before proposing fixes. Use when investigating bugs, errors, unexpected behavior, failed tests, or when previous fixes haven't worked.

原文の言語: 英語

design

Enforces precise, minimal design for dashboards and admin interfaces. Use when building SaaS UIs, data-heavy interfaces, or any product needing Jony Ive-level craft.

原文の言語: 英語

handling-errors

Prevents silent failures and context loss in error handling. Use when writing try-catch blocks, designing error propagation, reviewing catch blocks, or implementing Result patterns.

原文の言語: 英語

writing-tests

Writes behavior-focused tests using Testing Trophy model with real dependencies. Use when writing tests, choosing test types, or avoiding anti-patterns like testing mocks.

原文の言語: 英語

managing-databases

Guides database architecture for PostgreSQL, DuckDB, Parquet, PGVector, and Neo4j. Use when designing schemas, choosing storage strategies, optimizing queries, configuring vector or graph workloads, or diagnosing performance issues.

原文の言語: 英語

managing-pipelines

Guides GitHub Actions CI/CD architecture, security hardening, and deployment strategies. Use when designing workflows, securing supply chains, optimizing build performance, or configuring deployments.

原文の言語: 英語

planning-products

Defines product features from a PM perspective (JTBD, competitive research, scope negotiation) before technical planning. Use when scoping features, writing product specs, defining user problems, or choosing what to build.

原文の言語: 英語

structuring-articles

Selects and applies journalistic story structures (WSJ Formula, Inverted Pyramid, Hourglass, Tick-Tock). Use when writing or outlining articles, blog posts, essays, or any narrative prose longer than a few paragraphs.

原文の言語: 英語

writing-sql

Staff+ DBA SQL patterns targeting what Claude's defaults miss - multi-column statistics, operator classes, keyset pagination, silent performance anti-patterns. Use when writing complex SQL, reviewing queries, adding indexes, or optimizing slow queries.

原文の言語: 英語

architecting-systems

Guides clean, scalable system architecture during the build phase. Use when designing modules, defining boundaries, structuring projects, managing dependencies, or preventing tight coupling and brittleness as systems grow.

原文の言語: 英語

visualizing-with-mermaid

Creates professional Mermaid diagrams with semantic styling and visual hierarchy. Use when creating flowcharts, sequence diagrams, state machines, class diagrams, or architecture visualizations.

原文の言語: 英語