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6 use cases

Give each system the same task, tools, and budget. Check working behavior and regressions with independent tests and review.

Write a function

Implement a specification and handle edge cases.

Fix a reproducible bug

Repair a bug while preserving existing behavior.

Find bugs in a repository

Identify actionable defects with clear reproductions.

Implement a small feature

Complete a scoped feature in an existing application.

Refactor without changing behavior

Improve structure while preserving the public contract.

Build a usable web app

Deliver working interactions, accessible layouts, and reliable persistence.