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Skill Claude Code
Local-first architecture decision framework for web applications. Covers when to go local-first vs server-based vs hybrid, sync engine selection (ElectricSQL, Zero, PowerSync, Replicache, LiveStore, Triplit), client-side storage options (IndexedDB, OPFS, SQLite WASM, PGlite), and conflict resolution strategies (LWW…
Skill Claude CodeCodex
Framework-agnostic internationalization (i18n) and localization (l10n) patterns for multilingual applications. Covers ICU message format, pluralization rules (CLDR), RTL layout with CSS logical properties, locale negotiation and detection strategies, SEO hreflang tags, cookie/header-based locale resolution, and…
Skill Claude CodeCodex
Architects and orchestrates Model Context Protocol (MCP) ecosystems including server development, tool design, and transport configuration. Use when building MCP servers, designing agentic tool interfaces, configuring MCP transports, implementing OAuth security, or troubleshooting MCP connectivity. Use for…
Skill Claude CodeCodex
Mermaid diagram syntax for flowcharts, sequence diagrams, ERDs, class diagrams, and more. Use when creating diagrams in markdown, generating architecture visuals, or documenting system flows. Use for mermaid, diagram, flowchart, sequence, ERD, class-diagram, gantt, pie-chart, mindmap.
Skill Claude Code
Creates custom subagents for Claude Code with YAML frontmatter configuration in Markdown files. Covers agent scoping (project, user, CLI, plugin), tool access control, model selection, permission modes, skill preloading, and lifecycle hooks. Use when building specialized subagents, configuring tool access, selecting…
Skill Claude Code
Create custom slash commands for Claude Code with markdown and YAML frontmatter. Use when building workflow automations, creating reusable prompts, or defining custom /commands. Use for slash commands, argument handling, file references, bash execution.
Skill Claude Code
Create event hooks for Claude Code that trigger on tool calls, prompts, and lifecycle events. Use when automating workflows, blocking dangerous commands, protecting files, or adding notifications. Use for hooks, PreToolUse, PostToolUse, event handling, automation.
Skill Claude Code
Create plugins for Claude Code that bundle skills, agents, commands, hooks, and MCP servers. Use when packaging reusable tooling, distributing agent capabilities, or building plugin manifests. Use for plugin creation, manifest configuration, component bundling.
Skill Claude Code
Create agent skills following the Agent Skills open standard. Use when building new skills for Claude Code, Cursor, Gemini CLI, or other agents. Use for skill structure, SKILL.md authoring, frontmatter configuration, progressive disclosure, reference files, validation, and distribution.
Skill Claude Code
Mise (formerly rtx) polyglot tool version manager, environment variable manager, and task runner. Covers tool version management (install, use, pin across Node/Python/Rust/Go/Java and more), mise.toml task definitions (scripts, dependencies, watch mode, incremental builds), environment variable management (.env…
Skill Claude Code
Web animations with Motion (formerly Framer Motion) for React -- gestures, scroll effects, spring physics, layout animations, SVG, micro-interactions, loading states. Use when: drag-and-drop, scroll animations, modals, carousels, parallax, page transitions, hover effects, staggered lists, loading spinners, number…
Skill Claude Code
OpenAPI 3.1 specification, schema design, and code generation. Use when designing REST APIs, generating TypeScript clients, or creating API documentation. Use for openapi, swagger, api-spec, schema, code-generation, api-docs, openapi-typescript, zod-openapi.
Skill Claude Code
Infrastructure as code with OpenTofu (open-source Terraform fork) and Pulumi. Covers OpenTofu HCL syntax, providers, resources, data sources, modules, state management with remote backends, workspaces, importing existing infrastructure, plan/apply workflow, variable management, output values, provisioners, and state…
Skill Claude CodeCodex
Coordinates skills, frameworks, and workflows throughout the project lifecycle using pattern-based sequencing, goal decomposition, phase-gate validation, and multi-agent orchestration. Use when starting multi-phase projects, sequencing frameworks, decomposing goals into capability plans, validating phase-gate…
Skill Claude Code
Covers modern npm package authoring: package.json configuration with the exports field, dual ESM/CJS builds, TypeScript type declarations, and secure publishing workflows with provenance.
Skill Claude CodeCodex
PDF engineering for extraction, generation, modification, and form filling. Use when extracting text or tables from PDFs, generating PDFs with Puppeteer, modifying PDFs with pdf-lib, filling PDF forms, or implementing PDF security. Use for AI-assisted OCR, HTML-to-PDF conversion, and document processing pipelines.
Skill Claude CodeCodex
Optimize application performance and scalability. Use when investigating slow applications, scaling bottlenecks, or improving response times. Use for profiling, caching, database optimization, frontend performance, and backend tuning.
Skill Claude Code
PGlite embeds PostgreSQL 17.4 in the browser and Node.js via WASM, under 3MB gzipped. Covers storage backends, queries, transactions, extensions (pgvector, pgtrgm, full-text search), live queries, React integration, multi-tab worker architecture, and Electric sync. Use when setting up PGlite, choosing storage…
Skill Claude Code
Pino high-performance JSON logger for Node.js with worker thread transports, child loggers, redaction, and framework integrations. Use when setting up structured logging, configuring log transports, adding request correlation IDs, redacting sensitive data, or integrating with Fastify, Hono, or Express. Use for pino…
Skill Claude CodeCodex
Planning methodology and session management for software projects. Covers markdown plan creation, iterative refinement, multi-model blending, phase-based implementation docs, and cross-session progress tracking. Use when starting new projects, adding major features, breaking large work into phases, resuming after…
Skill Claude Code
Playwright browser automation API, web scraping, and tooling. Covers locator strategies, assertions, API testing, stealth mode, anti-bot bypass, authenticated sessions, screenshots/PDFs, Docker deployment, configuration, debugging, and MCP integration with AI agents. Prevents documented errors including CI timeout…
Skill Claude Code
Skill "pnpm-workspace" from oakoss/agent-skills, covering pnpm workspace, quick reference, common mistakes, delegation and references.
Skill Claude Code
PostgreSQL 17/18+ performance tuning and optimization. Covers async I/O configuration, query plan forensics, index strategies, autovacuum tuning, vector search optimization, connection pooling, declarative partitioning, and practical query patterns. Use when diagnosing slow queries, configuring async I/O, tuning…
Skill Claude Code
Prompt engineering and agentic orchestration patterns. Use when crafting prompts for reasoning models, implementing chain-of-thought or Tree-of-Thoughts, designing ReAct loops, building few-shot examples, optimizing prompt performance, structuring system prompts, using extended thinking, or designing tool use…
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