KeelTest – AI-driven VS Code unit test generator with bug discovery
I built this because Cursor, Claude Code and other agentic AI tools kept giving me tests that looked fine but failed when I ran them. Or worse - I'd ask the agent to run them and it would start looping: fix tests, those fail, then it starts "fixing" my code so tests pass, or just deletes assertions so they "pass". Out of that frustration I built KeelTest - a VS Code extension that generates pytest tests and executes them, got hooked and decided to push this project forward... When tests fail, it tries to figure out why: - Generation error: Attemps to fix it automatically, then tries again -…
KeelTest – AI-driven VS Code unit test generator with bug discovery launched on January 7, 2026 with 30 votes, #638 of 14,584 launches that month and more than 95% of that year's launches.
In plain words
KeelTest is a VS Code extension that generates pytest unit tests for Python code and automatically executes them. It uses static analysis to understand code dependencies and creates tests covering edge cases. When tests fail, the tool distinguishes between generation errors—which it attempts to fix automatically—and bugs in the source code, which it flags and explains. The extension is designed for developers who need reliable, executable tests rather than theoretically sound ones that fail at runtime.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I built this because Cursor, Claude Code and other agentic AI tools kept giving me tests that looked fine but failed when I ran them. Or worse - I'd ask the agent to run them and it would start looping: fix tests, those fail, then it starts "fixing" my code so tests pass, or just deletes assertions so they "pass".…
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Bugster2025 · bugster.dev · ▲419Bugster is a dev-first testing agent that runs UI tests without setup overhead. – Install and authenticate from terminal – Auto-generates an E2E test suite – Run locally or integrate with GitHub When integrated with GitHub: – Executes only relevant tests for each PR – Runs in Vercel preview environment – Comments results directly on the PR Works out of the box with Next.js + Vercel. Would love your feedback → https://www.bugster.dev/
- WHWasted hours on Unit tests, so I built VS Code ext for AI tests2024 · marketplace.visualstudio.com · ▲15
Hey guys, I'm investing a ton of time on writing unit tests, for both enterprise and personal projects. I came up with the idea to make extension for AI-generated tests and cases within a VS Code. Happy to hear feedback, both positive and negative.
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