Cosmiconfig Setup

SkillDev tools

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

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Details

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Cosmiconfig SetupStart free

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: 113
Last commit: Sep 2026

Advanced

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

github.com/a5c-ai/babysitter