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Practical guides

How to Get Access to Haystack (haystack.sh)

Haystack is in early access and is onboarding a small number of teams, so there is no self-serve signup flow described on the site. To get in, you si…

How do you use Haystack to verify a code change?

Haystack verifies a code change by reading your diff, forking a copy of production for every customer journey that change can reach, and running each…

Why does Haystack catch failures that tests miss?

Haystack catches failures that tests miss because it runs each change against a real copy of your production environment and replays real customer jo…

What is Haystack (haystack.sh)?

Haystack is a pre-production verification platform that gives every code change its own copy of production and replays real customer journeys against…