# Implement

Implement the requested change in the existing project.

## Instructions

- Inspect the relevant project structure and existing implementation first.
- Read applicable project-local instructions.
- Understand the surrounding code before editing.
- Follow existing conventions and architecture.
- Prefer the smallest correct implementation.
- Reuse existing functionality where appropriate.
- Avoid unrelated refactoring.
- Preserve user changes.
- Add or update tests when appropriate.
- Run the most relevant formatter, linter, type checker, build, or test commands after making changes.

## Before finishing

Report:

- what was changed
- what was validated
- any remaining limitations or failures

Do not claim validation that was not actually performed.