Configuration

Loads and validates type-safe configuration for Effect-TS applications.

8|Updated Jan 23, 2026
One-click install
npx skills add https://github.com/andrueandersoncs/claude-skill-effect-ts --skill configuration-andrueandersoncs
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Configuration
Source: https://github.com/andrueandersoncs/claude-skill-effect-ts/tree/main/skills/configuration
Command: npx skills add https://github.com/andrueandersoncs/claude-skill-effect-ts --skill configuration-andrueandersoncs

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers manage and load configuration for Effect-based apps in a type-safe, predictable way, reducing boilerplate and runtime errors.

Core Features & Use Cases

  • Type-safe config values: string, number, boolean, nested structures, and optional values.
  • Config providers & sources: environment variables, JSON/config objects, and layered providers.
  • Sensitive data handling: redacted and secret values with safe logging.
  • Validation & Schema: integrate with Effect Schema for validation and decoding.
  • Use Case: Build a Node.js app that reads DB_HOST, DB_PORT, and feature flags with defaults at startup.

Quick Start

Run a simple program that reads HOST and PORT from the environment, applying defaults when missing, and returns the resulting config object.

Frequently Asked Questions about Configuration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I load and validate environment variables in Effect-TS?

To load and validate environment variables in Effect-TS, use ConfigProvider to safely read values like HOST and PORT, applying defaults when missing and returning a type-safe configuration object.

What is the best way to handle sensitive configuration secrets in Effect?

The best way to handle sensitive configuration secrets in Effect is by using redacted values, which ensures safe logging and prevents accidental exposure of secret data during application runtime.

Can I use Effect Schema for nested config validation?

Yes, you can use Effect Schema for nested config validation to decode complex structures. This enforces type-safe access for nested configurations, feature flags, and optional values.

Does Effect support loading JSON-based configuration objects?

Yes, Effect supports loading JSON-based configuration objects through layered ConfigProvider sources. This allows you to merge environment variables and JSON data into a single type-safe configuration.

Why do I need schema validation for app configuration?

You need schema validation for app configuration to reduce boilerplate and prevent runtime errors. It enforces type-safe access to strings, numbers, and booleans at startup before the application runs.