Cosmiconfig Setup

SkillDev tools

Set up cosmiconfig for hierarchical configuration loading from multiple sources and formats.

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Account requirements not reviewed. Check the skill instructions before use; ahel provides instructions and does not run this skill.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the Cosmiconfig Setup skill

What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/cli-mcp-development/skills/cosmiconfig-setup/SKILL.md and read by ahel’s review.

Set up cosmiconfig for hierarchical config loading.

Capabilities

Configure cosmiconfig search paths
Set up format loaders (JSON, YAML, TOML)
Create TypeScript config support
Implement config caching
Handle config validation

Generated Patterns

import { cosmiconfig, cosmiconfigSync } from 'cosmiconfig';
import { TypeScriptLoader } from 'cosmiconfig-typescript-loader';

const moduleName = 'myapp';

const explorer = cosmiconfig(moduleName, {
  searchPlaces: [
    'package.json',
    `.${moduleName}rc`,
    `.${moduleName}rc.json`,
    `.${moduleName}rc.yaml`,
    `.${moduleName}rc.yml`,
    `.${moduleName}rc.js`,
    `.${moduleName}rc.ts`,
    `.${moduleName}rc.cjs`,
    `${moduleName}.config.js`,
    `${moduleName}.config.ts`,
    `${moduleName}.config.cjs`,
  ],
  loaders: {
    '.ts': TypeScriptLoader(),
  },
});

export async function loadConfig(searchFrom?: string) {
  const result = await explorer.search(searchFrom);
  if (!result || result.isEmpty) {
    return { config: getDefaultConfig(), filepath: null };
  }
  return { config: { ...getDefaultConfig(), ...result.config }, filepath: result.filepath };
}

Target Processes

configuration-management-system
cli-application-bootstrap
mcp-server-bootstrap

Signals

GitHub stars: 2k
Forks: 112
Last commit: Sep 2026

Advanced

Item type: skill
Key: cosmiconfig-setup
Source: github.com/a5c-ai/babysitter

github.com/a5c-ai/babysitter