區塊鏈

This skill optimizes prompts for Large Language Models (LLMs) to reduce token usage, lower costs, and improve performance. It analyzes the prompt, identifies areas for simplification and redundancy removal, and rewrites the prompt to be more concise and effective. It is used when the user wants to reduce LLM costs, improve response speed, or enhance the quality of LLM outputs by optimizing the prompt. Trigger terms include "optimize prompt", "reduce LLM cost", "improve prompt performance", "rewrite prompt", "prompt optimization".

This skill enables Claude to create and execute load tests for performance validation. It is designed to generate load test scripts using tools like k6, JMeter, and Artillery, based on specified test scenarios. Use this skill when the user requests to create a "load test", conduct "performance testing", validate "application performance", or needs a "stress test" to identify breaking points in the application. The skill helps define performance thresholds and provides execution instructions.

トークン使用量の最小化と必要情報の効率的抽出を支援するスキル。遅延読み込み、インデックス駆動設計、圧縮と精錬の手順を整理する。Anchors:• High Performance Browser Networking / 適用: パフォーマンス測定と最適化 / 目的: 遅延を考慮したコンテキスト設計• Progressive Disclosure パターン / 適用: 段階的な情報開示 / 目的: トークン使用量の抑制Trigger:Use when minimizing token usage, extracting necessary information efficiently, or optimizing context window utilization.context optimization, token minimization, lazy loading, index-driven design, summarization

静的コード解析と品質メトリクスの設定、複雑度評価、Code Smell検出を支援するスキル。品質基準の策定から改善優先度付けまでを一貫して整理する。Anchors:• Clean Code / 適用: 品質基準 / 目的: コード品質の判定• Code Complete / 適用: 複雑度管理 / 目的: 認知負荷の低減Trigger:Use when configuring static analysis, defining quality gates, measuring complexity, or triaging code smells.static analysis, complexity metrics, code smells, quality gate

Conduct systematic trade study analyses using the DAU 9-Step Trade Study Process. Guides engineers through problem definition, root cause analysis (5 Whys, Fishbone), data collection from alternatives and datasheets, normalization calculations, weighted scoring, sensitivity analysis, and professional report generation with visualizations and decision matrices. Use when evaluating alternatives, comparing solutions, conducting trade-offs, or making engineering decisions.

Provides comprehensive project folder structure design guidelines and best practices. Defines standard directory organizations for diverse project types including monorepos, web frameworks, backend services, libraries, and extensions. Ensures scalable, maintainable architecture through consistent file organization patterns. Specializes in separation of concerns, modular architecture, and tooling integration.Use when: designing new project structures, organizing monorepo workspaces with tools like Turborepo/Nx, structuring NestJS backend projects, organizing React/Next.js frontend applications, designing Go service architectures, creating NPM package structures, organizing VSCode extension projects, structuring Chrome extension codebases, planning directory hierarchies, migrating legacy project structures, or establishing code organization conventions for teams.

Resonant state mapping and stability checks for Dense-State Logic v1, including phase-wrapped token mapping, telemetry-biased resonance scoring, and intent integrity drift verification. Use when implementing or validating temporal formalism, resonance gating, or dense state kernels.

Managing context window, token optimization, summarization strategies for long conversations.

Define shared domain types and API contracts for F# full-stack applications. Use when: "define types", "create entity", "add model", "API contract", "shared types", "domain model", "record", "discriminated union", "data structure", "DTO", "interface", "type definition", "new entity", "modify types". Creates types in src/Shared/Domain.fs and API interfaces in src/Shared/Api.fs. Always start here when adding new features.

Provides comprehensive TypeScript development expertise and coding standards. Ensures type safety through strict type checking, implements clean code patterns, and maintains consistent architectural decisions. Specializes in advanced type system features including generics, conditional types, mapped types, and template literal types. Use when: working with TypeScript files (.ts/.tsx), defining type definitions and interfaces, implementing generic programming patterns, designing type-safe APIs, handling complex type transformations, integrating TypeScript with React/Vue/Angular frameworks, configuring strict mode settings, resolving type errors, or optimizing type performance in large codebases.

Create comprehensive Product Requirements Documents (PRDs), break down features into epics and user stories, and establish clear acceptance criteria. Use this skill when you need to: (1) Transform a project brief or business requirements into a structured PRD, (2) Define product scope and goals, (3) Create user stories with acceptance criteria, (4) Break down complex features into implementable epics, (5) Prioritize features and determine MVP scope, (6) Specify non-functional requirements, or (7) Translate business vision into development-ready specifications.

Domain model classes with automatic hydration, relations, and type casting. Use when creating models for API entities, defining relationships between models, casting properties to enums/dates, or creating value objects.

Create comprehensive Product Requirements Documents (PRD) from high-level product ideas with structured market analysis, feature definition, and success metrics for both greenfield and brownfield contexts. Use when defining product vision for new projects (greenfield) or formalizing requirements for existing systems (brownfield).

Auth0 security specialist covering attack protection, multi-factor authentication, token security, sender constraining, and compliance. Use when implementing Auth0 security features, configuring attack defenses, setting up MFA, or meeting regulatory requirements.

Extract operations from requirements as categorical morphisms. Identifiesdomain, codomain, effects, and whether morphisms are generators or derivedfrom composition. Use when: defining operations, adding functionality,analyzing behavior, specifying workflows.

Work with GNU recutils for plain-text record databases. Use when creating, querying, or validating .rec files, defining record schemas with %rec descriptors, converting between rec/CSV formats, or when the user mentions recutils, recsel, recins, recfmt, or record-oriented data files.

Master smart contract security with auditing, vulnerability detection, and incident response

Use when writing PEG grammars with Peggy (formerly PEG.js) - parsing expression grammars, parser generation, and syntax definition

Build type-safe D1 databases with Drizzle ORM for Cloudflare Workers. Includes schema definition, migrations with Drizzle Kit, relations, and D1 batch API patterns. Prevents 12 errors including SQL BEGIN failures. Use when: defining D1 schemas, managing migrations, writing type-safe queries, implementing relations or prepared statements, using batch API for transactions, or troubleshooting D1_ERROR, BEGIN TRANSACTION, foreign keys, migration apply, or schema inference errors. Prevents 12 documented issues: D1 transaction errors (SQL BEGIN not supported), foreign key constraint failures during migrations, module import errors with Wrangler, D1 binding not found, migration apply failures, schema TypeScript inference errors, prepared statement caching issues, transaction rollback patterns, TypeScript strict mode errors, drizzle.config.ts not found, remote vs local database confusion, and wrangler.toml vs wrangler.jsonc mixing. Keywords: drizzle orm, drizzle d1, type-safe sql, drizzle schema, drizzle migrations, drizzle kit, orm cloudflare, d1 orm, drizzle typescript, drizzle relations, drizzle transactions, drizzle query builder, schema definition, prepared statements, drizzle batch, migration management, relational queries, drizzle joins, D1_ERROR, BEGIN TRANSACTION d1, foreign key constraint, migration failed, schema not found, d1 binding error

Interprets Arduino/ESP32/RP2040 compiler errors in plain English for beginners. Use when user shares error messages, compilation failures, upload problems, or asks "what does this error mean". Covers common errors like undefined references, type mismatches, missing libraries, and board-specific issues.