What is a user story in agile?
A user story is a short description of a feature told from the user's perspective, typically using the format: 'As a [type of user], I want [capability] so that [benefit].' Created by Mike Cohn, this format is the standard in agile development. Variations include Atlassian's detailed format with acceptance criteria and BDD's Given-When-Then (Gherkin) format for executable specifications.