Type-safe ORM for Cloudflare D1 databases using Drizzle. Provides patterns for schema definition, migrations, and type-safe queries. Prevents transaction errors and schema mismatches. Includes templates for strict TypeScript usage.

Drizzle ORM best practices including schema design with relationships, database migrations, prepared statements for performance, transactions, indexes, Turso SQLite database operations, type safety patterns, query optimization, and database workflow for ree-board project

Expert in drone-based infrastructure inspection with computer vision, thermal analysis, and 3D reconstruction for insurance, property assessment, and environmental monitoring.

Safe patterns for inspecting and syncing Drupal configuration across environments without accidentally importing changes.

Drupal Front End Specialist skill for theme development, Twig templates, and rendering system (Drupal 8-11+). Use when working with Drupal themes, Twig syntax, preprocessing, CSS/JS libraries, or template suggestions.

DSIM simulator debugging and troubleshooting. Use when investigating compilation errors, runtime failures, waveform analysis, or DSIM environment issues.

Fetch actual data from Danmarks Statistik API and store in DuckDB. Use when user wants to download and store specific DST table data for analysis.

Execute SQL queries on Danmarks Statistik data stored in DuckDB. Use when user needs specific data analysis, filtering, aggregation, or joins. Also includes table summary functionality.

Search and list Danmarks Statistik tables by subject or keyword. Use when user needs to find specific tables or browse tables within a subject area.

Create interactive Chart.js visualizations for DST data analysis. Use when generating charts, creating visual reports, building dashboards, or displaying trends from database tables.

Generate DuckDB SQL queries. Use when user asks about DuckDB queries, data analysis, exploring .ddb database files, CSV files, Parquet files, wants help editing/improving SQL, asks to use the duckdb skill, references duckdb assets, or wants to initialize/setup duckdb analysis.

Coordinate and prepare for investor due diligence with organized data rooms

Find and eliminate code duplication with DRY refactoring strategies

Downloads Dutch official legal publications including national laws (wetten, ministeriele regelingen, koninklijk besluiten), local regulations (lokale verordeningen, gemeentelijk beleid), and implementation policies (uitvoeringsbeleid) from government databases (BWB, CVDR) and converts them to YAML format with textual content only. Use when user wants to download, fetch, or import any Dutch regulation by name or type.

Provides expertise for analyzing DWARF debug files and understanding the DWARF debug format/standard (v3-v5). Triggers when understanding DWARF information, interacting with DWARF files, answering DWARF-related questions, or working with code that parses DWARF data.

Interactive debugging via DAP-MCP for multiple languages with natural language commands

AWS DynamoDB NoSQL database for scalable data storage. Use when designing table schemas, writing queries, configuring indexes, managing capacity, implementing single-table design, or troubleshooting performance issues.

Comprehensive skill for building, debugging, and optimizing DZMM.AI applications. Use this skill when users request creating interactive web apps on the DZMM platform, need guidance on DZMM API usage, or require help with existing DZMM applications. Covers AI-driven chatbots, visual novels, dating sims, content generators, RPG games, content platforms, and visual effect systems. Includes state management games, message management (reroll/edit/delete), multi-opening systems, rich text rendering, modular prompt engineering, resource reuse strategies, React/Vue to DZMM migration, and responsive mobile design.

e2e-first-planning

Create comprehensive E2E test plans with deep application analysis, navigation coverage audit, and browser-testable scenarios

End-to-end testing using Playwright MCP. Automate user workflows, take screenshots, validate UI/UX, perform visual regression testing, and verify complete user journeys. Use after feature implementation or before deployment.

Build autonomous end-to-end full-stack testing agents using Claude's Computer Use API, LangGraph orchestration, and hybrid Playwright automation. Use this skill when building testing infrastructure, test automation, CI/CD test integration, or self-healing test systems.

E2E Validator Skill

Specialized skill for editing and refining EAD2002 finding aids for the Terrence Kaufman Papers at the Archive of Indigenous Languages of Latin America (AILLA), Lillas Benson Latin American Studies and Collections, University of Texas at Austin. Use when working with KaufmanEAD.xml, implementing staff feedback, validating against EAD2002 standards, or referencing institutional finding aid examples.

Design system architecture from 10,000 feet. Soar above the codebase, survey the landscape, and create blueprints that stand the test of time. Use when planning major features, refactoring systems, or mapping how components interact.

Translate user stories and informal requirements into precise, testable EARS format requirements.

EAS Build configuration for iOS and Android. Use when setting up cloud builds.

Expert on EAS Build cloud service for building iOS and Android apps. Covers build configuration, credentials management, custom builds, CI/CD integration, and troubleshooting. Invoke when user mentions EAS Build, cloud builds, app compilation, build workflows, or iOS/Android binary creation.

EAS Update for OTA updates. Use when setting up over-the-air updates.

Expert in technical valuation approaches for easements including percentage of fee method, income capitalization, and before/after comparison. Use when valuing utility transmission easements, pipeline corridors, access easements, telecom sites, or when detailed methodology beyond basic percentage ranges is required. Key terms include easement valuation, percentage of fee, income capitalization, paired sales analysis, discount rate selection, agricultural rent analysis

Expert in Asian philosophical traditions including Buddhism, Taoism, Confucianism, and Hindu philosophy

Complete Easy.Platform backend development for EasyPlatform. Covers CQRS commands/queries, entities, validation, migrations, background jobs, and message bus. Use for any .NET backend task in this monorepo.

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

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.

Create, manage, and safely run Ecto database migrations with proper rollback handling and best practices. Use when working with database schema changes, adding columns, or modifying constraints.

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

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.

I'm a specialized agent focused on line-level editing to improve clarity, concision, and style. I work at the sentence and word level to make your prose shine.

Implement IFieldEditor interface for custom type rendering in script inspector. Covers reflection-based field editing, FieldEditorRegistry registration, boxing/unboxing patterns, and extending the field editor system for new types.

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

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.

Expert-level education technology, learning management systems, and ed-tech platforms

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

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