Source

Gemini CLI v0.39.0 (#24770 by @TanmayVartak): "feat: support auth block in MCP servers config in agents".

Validator

gemini_cli (GM rules).

Proposed rule

GM-MCP-*: validate structure of the new auth block in .gemini/settings.json or agent MCP server entries.

Notes

• Identified during 2026-04-25 tool-release triage (closed Tool release: Gemini CLI v0.39.1 (was v0.38.2) #780).
• Needs investigation: PR #24770 description is brief and release notes don't spell out the auth block's fields. Before drafting the rule, inspect the PR diff at feat: support auth block in MCP servers config in agents google-gemini/gemini-cli#24770 to determine the exact schema.