millionco/expect
A testing skill that reads git changes, generates test plans, and runs them in a real browser to validate AI coding agent output.
Not currently ranked — collecting fresh signals.
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Expect integrates with AI coding agents like Claude Code, Codex, and Cursor to automatically test their generated code. It reads code changes, generates a test plan, and executes it in a real browser using Playwright. The tool checks for performance metrics (INP, LCP), security vulnerabilities, design regressions, and app completeness. It spawns subagents simulating real logged-in users to find issues, then reports back so the original agent can fix them. Supports both local development and CI environments.
Frequently asked
- What is millionco/expect?
- A testing skill that reads git changes, generates test plans, and runs them in a real browser to validate AI coding agent output.
- Is expect open source?
- Yes — millionco/expect is an open-source project tracked on heatdrop.
- What language is expect written in?
- millionco/expect is primarily written in TypeScript.
- How popular is expect?
- millionco/expect has 3.5k stars on GitHub.
- Where can I find expect?
- millionco/expect is on GitHub at https://github.com/millionco/expect.