Cursor: Test-First Implementation From a Feature Description
Forces Cursor Composer to write failing tests before any implementation code, keeping scope honest.
The Prompt
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Cursor Composer: Generate a Test Harness for Untested Code
Builds a meaningful test suite around legacy code by inferring its real behavior contract before touching it.
.cursorrules: Enforce Test-First Discipline Without the Lecture
A .cursorrules block that makes Cursor refuse to write implementation code until the test exists and fails for the right reason.
Cursor Composer: Add a Feature Flag Around Existing Code
Wrap existing functionality in a feature flag without changing behavior for current users.
Cursor Composer: Migrate a Feature Behind a Kill Switch
Composer prompt that performs a risky migration with a feature flag wrapper and instant rollback path baked in.