Parse ebooks, extract concepts and entities with citation traceability, classify by type/layer, and synthesize across book collections.

Surface ebook ideas you didn't know you had. Use when ready to discover what ebooks might be hiding in your content, expertise, or thinking. Supports both content-rich creators (blog posts, videos, newsletters) and those with unpublished expertise. Produces a curated list of ebook candidates ready for Concept Development. Handles multi-session discovery with living documents.

Property-based testing and fuzzing using Echidna for smart contracts. Includes invariant definition, corpus management, coverage analysis, and CI/CD integration for comprehensive security testing.

You are an expert in e-commerce fulfillment operations and direct-to-consumer logistics. Your goal is to help online retailers optimize order processing, warehouse operations, shipping strategies, and

Token-efficient parallel execution mode using Haiku and Sonnet agents

economist-analyst

Analyzes Claude Code ecosystem health by tracking all 27 extensibility components across 6 tiers - including plugin components, core configuration, environment/CLI, authentication, session features, and integrations. Use when checking if Claude Code components are up-to-date, orchestrating audits efficiently, tracking documentation coverage, applying updates from new Claude Code versions, or getting an overview of ecosystem component staleness.

Migrate existing repositories to use Personal GitHub Ecosystem templates and patterns, including workflow conversion and AI integration adoption.

PCB layout and routing. Component placement, trace routing, copper pours, design rule configuration, and layout optimization for manufacturability.

Component research and procurement. Search JLC for components, analyze datasheets, compare options, and document selections with rationale.

Schematic capture and wiring. Create schematic sheets, place symbols, add wires and net labels, organize hierarchical designs.

Eval-Driven Development (EDD) Framework v2.64 - Define-before-implement pattern with structured evals. Provides workflow: Define specifications → Implement features → Verify against evals. Components: TEMPLATE.md for eval definitions, edd.sh CLI script, /edd skill invocation. Check types: CC- (Capability), BC- (Behavior), NFC- (Non-Functional). Integrates with orchestrator workflow for quality-first development. Keywords: evals, define, implement, verify, capability checks, behavior checks, non-functional checks, template, quality assurance, test-driven, specification. Use when: defining new features with structured evals, implementing with verification requirements, creating quality specifications, TDD-style workflow with evals.

Use when planning new features or changes to identify failure scenarios before implementation

Apply when doing planning for long-running tasks in sessions on top level

editing-claude

Comprehensive editing framework covering voice consistency, timeline verification, citation coverage, and multi-pass editing strategies for autonomous manuscript refinement.

Comprehensive guide for using Editor UI Drawers (ButtonDrawer, ModalDrawer, TableDrawer, TreeDrawer, LayoutDrawer, TextDrawer, DragDropDrawer). Use when implementing any UI in editor panels to ensure consistency.

Use when documents need prose improvement, CLAUDE.md style enforcement (prose over bullets, bridging transitions, complete sentences), or final polish before archival

Use when planning multi-channel editorial calendars, enforcing publishing cadences, and coordinating distribution workflows across GTM teams.

Guide for debugging and performance optimization of EDS blocks including error handling, FOUC prevention, Core Web Vitals optimization, and debugging workflows for Adobe Edge Delivery Services.

Analyze and optimize E-E-A-T signals (Experience, Expertise, Authority, Trust) for content credibility.

Effect AI (`@effect/ai`) provides type-safe integration with AI/LLM services:

Skill index and decision guide. Use to pick the right Effect Skill quickly and follow a minimal decision tree.

Expert regex pattern generation, optimization, testing, and explanation using deterministic AST-based construction. Use when user needs to create, test, optimize, or understand regex patterns, parse CLI commands, validate inputs, or build complex text matching patterns.

Analyzes and refactors Go code using Effective Go principles. Use when refactoring Go code, identifying anti-patterns, improving Go idioms, or applying Go best practices.

Master effective prompting techniques for Claude Code. Use when learning prompt patterns, improving task descriptions, optimizing Claude interactions, or troubleshooting why Claude misunderstood a request. Covers @ mentions, thinking keywords, task framing, and iterative refinement.

EKS observability with metrics, logging, and tracing. Use when setting up monitoring, configuring logging pipelines, implementing distributed tracing, building production dashboards, troubleshooting EKS issues, optimizing observability costs, or establishing SLOs.

EKS security hardening and best practices. Use when configuring cluster security, implementing pod security, managing secrets, preparing for compliance audits, hardening infrastructure, scanning containers, or responding to security incidents.

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.

eld-model-link-map

eld-record-knowledge-transfer

electron-base

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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.

You are an expert in electronics manufacturing supply chain management and semiconductor operations. Your goal is to help optimize complex global supply networks, manage component sourcing and allocat

Build multi-file features with unstoppable momentum. Trumpet the vision, gather materials, construct with strength, test thoroughly, and celebrate completion. Use when implementing features that span multiple files or systems.

*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

Hub skill for requirements elicitation. Provides technique selection, orchestration guidance, LLMREI patterns, and autonomy level configuration. Use when gathering requirements from stakeholders, conducting elicitation sessions, or preparing requirements for specification.

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

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

Use when creating or modifying email templates for Elon AI - welcome emails, role changes, notifications, teacher digests, or QR code invitations. This project uses HTML string templates, NOT React Email components.

<purpose>

emacs-lisp

Expert guide for building Emacs transient menus (keyboard-driven UI like Magit). Use when implementing or debugging transient-define-prefix, transient-define-suffix, or transient-define-infix commands.