# CLI Work Split Contract

## Codex CLI (Primary)

Use Codex CLI for:

- File edits, refactors, implementation changes.
- Running tests, linters, builds, and local verification.
- Updating authoritative project artifacts and state files.

## Gemini CLI (Optional Secondary)

Use Gemini CLI for:

- Variant ideation, alternative framing, and style exploration.
- Comparative brainstorming where direct repo mutation is not required.

## Guardrails

1. Final source-of-truth edits happen via Codex CLI.
2. Any external suggestion must be validated against local artifacts before adoption.
3. Verification evidence must be produced from local project commands.