EKS cluster patterns and best practices for Terraform. Provides cluster, node group, add-on, and IRSA scaffolds. Use when developing EKS infrastructure.

Index and search project knowledge. Use when starting a new task to find related prior work, when ingesting documents or chats, or when searching project history for context.

Elasticsearch 5.2 operations using HTTP API - searching, indexing, bulk operations, scroll API, and alias management

electron-base

Guide for performing Chromium version upgrades in the Electron project. Use when working on the roller/chromium/main branch to fix patch conflicts during `e sync --3`. Covers the patch application workflow, conflict resolution, analyzing upstream Chromium changes, and proper commit formatting for patch fixes.

This skill should be used when developing Electron applications with Feature-Sliced Design (FSD) architecture and React 19. Triggers on requests to create components, features, entities, widgets, or pages following FSD layer structure. Also applies when setting up Electron main/preload/renderer process code organization.

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Desktop application specialist building secure cross-platform solutions. Develops Electron apps with native OS integration, focusing on security, performance, and seamless user experience.

Scaffold a native-looking, effective Electron app with best practices baked in. Creates a production-ready Electron application with security hardening, modern tooling, proper IPC patterns, auto-updates, native UI elements, and optimal build configuration. Use this skill when users want to start a new Electron project or modernize an existing one.

Element is a zero dependency library to efficiently generate HTML, without templates in Go

*Transform any project into production-quality software using proven patterns.*

Provides elevator pitch and verbal brand communication frameworks including Donald Miller's StoryBrand (SB7), Nancy Duarte's Sparkline, Chris Westfall's CLARITY, Andy Raskin's Strategic Narrative, Simon Sinek's Golden Circle, and time-based pitch structures (10s, 30s, 60s). Auto-activates during elevator pitch creation, one-liner development, brand pitch refinement, and verbal communication work. Use when discussing elevator pitches, one-liners, brand intros, verbal pitches, pitch coaching, spoken brand messages, or pitch variations.

elevenlabs-agents

Auto-review skill for expert agents. After coding, expert applies elicitation techniques to self-correct before sniper validation. Inspired by BMAD-METHOD.

You are an elite Elixir developer specializing in full-stack web applications

Use when designing or architecting Elixir/Phoenix/LiveView applications, creating comprehensive project documentation, planning OTP supervision trees, defining domain models, structuring multi-app projects with path-based dependencies, or preparing handoff documentation for Director/Implementor AI collaboration

Elixir and Phoenix development guidelines with critical language-specific gotchas. Use when writing Elixir code, Phoenix applications, or Mix tasks. Prevents common mistakes with list access, variable rebinding, struct access, and OTP patterns that cause subtle bugs or compilation errors.

**NEVER fix symptoms. ALWAYS trace to the root cause.**

MANDATORY verification before claiming anything works. Run actual commands, read actual output, provide evidence. Use when claiming tests pass, build succeeds, or code works.

ElizaOS - TypeScript framework for building autonomous AI agents with multi-platform support (Discord, Telegram, Twitter, Farcaster), blockchain integration (EVM, Solana), plugin architecture, multi-agent orchestration, and 90+ community plugins

Comprehensive Elm functional programming for web development including The Elm Architecture, type system, JavaScript interop, and production-ready patterns

You are a specialized migration expert for the morphir-dotnet project. Your role is to facilitate the conversion of Elm code from the [finos/morphir-elm](https://github.com/finos/morphir-elm) reposito

Professional scientific documentation in org-mode electronic lab notebooks with date-based organization, comprehensive record-keeping of hypotheses, methods, results, reasoning, and outcomes for reproducible research

Expert guidance for ElysiaJS web framework development. Use when building REST APIs, GraphQL services, or WebSocket applications with Elysia on Bun. Covers routing, lifecycle hooks, TypeBox validation, Eden type-safe clients, authentication with JWT/Bearer, all official plugins (OpenAPI, CORS, JWT, static, cron, GraphQL, tRPC), testing patterns, and production deployment. Assumes bun-expert skill is active for Bun runtime expertise.

<purpose>

Emacs Info documentation system. Navigate and query Info manuals for Emacs, Elisp, and GNU tools.

emacs-lisp

Email delivery patterns including single, batch, scheduled emails and attachment handling. Use when building transactional email systems, batch communication workflows, scheduled delivery, or implementing file/URL attachments with reply-to and CC/BCC functionality.

Email template development with React Email and Tailwind CSS. Use when creating or modifying email templates, testing email rendering, or building email HTML from React components.

email-gateway

Comprehensive email marketing strategy including drip campaigns, segmentation, automation workflows, copywriting guidelines, deliverability best practices, and 90-day implementation roadmap with full-funnel lifecycle coverage

Auto-embed Acceptance Criteria from living docs into increment spec.md for hook compatibility

Embedded systems development best practices for ESP32, FreeRTOS, and ESP-IDF. Use when writing firmware code, reviewing implementations, or learning about embedded patterns.

Optimizing vector embeddings for RAG systems through model selection, chunking strategies, caching, and performance tuning. Use when building semantic search, RAG pipelines, or document retrieval systems that require cost-effective, high-quality embeddings.

Emergency steps to mitigate ulimit-related crashes by increasing file descriptor limits and restarting services.

Emerging technologies (prompt engineering, AI agents, red teaming) and leadership roles (product manager, engineering manager, DevRel).

Use when writing subagent prompts, skill instructions, or any high-stakes task requiring accuracy and truthfulness

Intent-based code interpretation across all languages — SQL, Python, JS, YAML, Bash, and beyond

Smart templates that understand semantic intent, not just string substitution

Automates deployment of Encore.ts backend and Next.js frontend to Encore Cloud and Vercel. Use this skill when deploying the full-stack application, setting up new environments, or troubleshooting deployment issues.

Complete development workflow orchestrator coordinating all multi-ai skills (research → planning → implementation → testing → verification) with quality gates, failure recovery, and state management. Single-command complete workflows from objective to production-ready code. Use when implementing complete features requiring full pipeline, coordinating multiple skills automatically, or executing production-grade development cycles end-to-end.

Use this skill to implement endpoints in the API

Use when creating or updating Energize Denver compliance proposals including benchmarking, energy audits, compliance pathways, and performance target analysis. Handles proposal generation from template, cost estimation based on building size and service type, timeline planning, and compliance verification against Denver Article XIV requirements for commercial and multifamily buildings (project)

Build an Energy Management Operating System Pack (energy drivers/drains map, calendar energy audit, zone-of-genius expansion plan, energy-aligned weekly schedule, recovery routines, and 2-week experiments). Use for sustainable leadership performance and burnout prevention. Category: Leadership.

Use this skill when analyzing EnergyPlus IDF building energy models, including QA/QC validation, HVAC topology analysis, ECM testing, or running simulations. Supports fast validation without Docker (direct parsing) and comprehensive analysis with MCP tools when needed. Handles Windows path formats, environment detection, and intelligent method selection. (project)

Generate EnergyPlus building simulations from natural language descriptions or building images. Use when user asks to 'create building simulation', 'generate IDF', 'simulate X-story building', provides building floor plans, 3D models, or describes buildings like 'a 3-story office building in Shenzhen'.

單元測試與代碼提交前觸發。掃描並驗證方法的 pre-conditions、post-conditions 與 invariants，透過契約式設計減少 AI 幻覺。

EnforceScript component patterns, networking, persistence, and memory management for Enfusion engine

Use when planning feature development from ideation to implementation - orchestrates the complete workflow from brainstorming through requirements, design, sequencing, and execution using specialized skills at each stage