# Hairy Utils > Comprehensive skills for working with @hairy/utils core utilities Use when this capability is needed. - Skill: `tomevault-io/hairy-utils` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/hairy-utils` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/hairy-utils/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/hairy-utils --- > Based on @hairy/utils v1.47.0. Focuses on core utility functions for JavaScript/TypeScript development. ## Core References | Topic | Description | Reference | |-------|-------------|-----------| | Async Utilities | Promise handling, deferred promises, and async flow control | [core-async](references/core-async.md) | | Function Composition | Compose and pipe functions for functional programming | [core-composition](references/core-composition.md) | | Loop Control | Cancellable loops with delay control | [core-loop](references/core-loop.md) | | Type Checking | Runtime type detection and validation utilities | [core-type-checking](references/core-type-checking.md) | | Number Utilities | BigNumber operations, formatting, and calculations | [core-numbers](references/core-numbers.md) | | String Utilities | String manipulation, templating, and formatting | [core-strings](references/core-strings.md) | | Browser Detection | Environment and browser detection utilities | [core-browser](references/core-browser.md) | ## Advanced Features | Topic | Description | Reference | |-------|-------------|-----------| | Type Utilities | Type definitions and type manipulation helpers | [advanced-types](references/advanced-types.md) | | Utility Functions | General-purpose utility functions | [advanced-utils](references/advanced-utils.md) | --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/hairyf) — claim your Tome and manage your conversions.