Chai BDD/TDD assertion library reference for JavaScript testing. Covers expect/should/assert styles, deep equality, type checks, string/array/object matchers, error assertions, chai-as-promised, chai-http for API testing, sinon-chai, and custom assertions.
Scanned 9/7/2026
Install to Claude Code
Skills Directorynpx -y skills add bytesagain/ai-skills --skill chai --agent claude-codeInstalls into .claude/skills of the current project.
Are you the author of Chai?
Add the live security badge to your README — it updates automatically with every re-scan.
[](https://www.skillsdirectory.com/skills/bytesagain-chai)More formats (shields.io, HTML) on the badges page.
---
name: chai
version: 1.0.0
description: >
Chai BDD/TDD assertion library reference for JavaScript testing.
Covers expect/should/assert styles, deep equality, type checks,
string/array/object matchers, error assertions, chai-as-promised,
chai-http for API testing, sinon-chai, and custom assertions.
author: BytesAgain
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: [chai, testing, assertion, bdd, tdd, javascript, mocha]
---
# Chai Reference
BDD/TDD assertion library for JavaScript.
## Commands
| Command | Description |
|---------|-------------|
| `intro` | Overview, styles, plugins |
| `expect` | Expect API, matchers |
| `advanced` | Errors, promises, HTTP, custom |
Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
No comments yet. Be the first to comment!
