Akkr/gemma4 apr19

[akh64bit]

Summary

Details

Related Issues

How to Validate

Pre-Merge Checklist

• Updated relevant documentation and README (if needed)
• Added/updated tests (if needed)
• Noted breaking changes (if any)
• Validated on required platforms/methods:
  • MacOS
    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt
  • Windows
    • npm run
    • npx
    • Docker
  • Linux
    • npm run
    • npx
    • Docker

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request simplifies the model selection process by removing the dynamic model routing service in favor of a fixed model, 'gemma-4-26b-a4b-it'. These changes affect both the core client and the local agent executor, necessitating updates to configuration constants and a significant refactoring of the associated test suites to accommodate the new static model assignment.

Highlights

• Model Selection Update: Replaced dynamic model routing with a hardcoded selection of 'gemma-4-26b-a4b-it' in the Gemini client and local executor.
• Configuration Changes: Added 'GEMMA_4_MODEL' to the available models configuration.
• Test Suite Adjustments: Updated existing tests to reflect the new model selection logic and skipped several tests related to the removed model routing functionality.

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[gemini-code-assist]

Code Review

This pull request removes the dynamic model routing logic from the LocalAgentExecutor and GeminiClient. In LocalAgentExecutor, "auto" models now default to PREVIEW_GEMINI_FLASH_MODEL, while GeminiClient has been updated to hardcode the use of the new GEMMA_4_MODEL (gemma-4-26b-a4b-it). Correspondingly, several tests related to model routing, availability services, and stream retries have been skipped or updated to reflect these changes. I have no feedback to provide as there were no review comments to evaluate.