Sprint Zero exists to remove day-one risk: you don't reach the end of the build discovering that deploy doesn't work, the stack doesn't scale or security has a hole. It sets up the repository, the deploy pipeline, authentication and secrets, and records the first architecture decisions (stack, database, deploy, observability). If something breaks here, better to find out now — before scope turns into technical debt.
GLOSSARY
Sprint Zero
What is Sprint Zero?
Technical validation step before the build. Stack, deploy, security and the first architecture decisions are defined in writing before any feature is built.
Other concepts
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