Replaces manual QA with AI that reads your code, understands changes, and writes tests per PR.
Using intent-aware test synthesis from code diffs, semantic code graph modeling across repos, and natural language test generation so any developer writes suites fast.

Technology
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Developer Tools
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YC W26

Last Updated:
March 20, 2026

Builds AI-powered QA that deeply understands source code. Connects to the codebase, reads diffs, understands intent behind changes, then generates and executes end-to-end tests on every pull request. Aimed at replacing manual QA engineering with AI that knows the code.
Per a Hacker News Launch HN post (March 2026), Canary connects to codebases and understands app architecture (routes, controllers, validation logic). On PR push, it reads diffs, understands intent, and generates/executes targeted tests. Currently in closed beta/design partner phase.
The ex-Windsurf and ex-Google team brings deep developer tooling expertise. Code-aware QA is a growing category as AI agents make code changes faster than humans can test. Likely expanding from web app testing to broader coverage.
Viswesh brings experience from Windsurf (AI coding tool) and Google, providing deep understanding of both developer workflows and AI code comprehension. Building QA that understands code intent (not just syntax) is a meaningful technical differentiation.