Expose model overrides for multi-agent v2 spawns#32749
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copyberry[bot] merged 1 commit intoJul 13, 2026
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## What changed - Add the `features.multi_agent_v2.expose_spawn_agent_model_overrides` setting, enabled by default, to expose `model` and `reasoning_effort` on the v2 `spawn_agent` tool. - Keep these controls available when other spawn metadata is hidden, while allowing them to be disabled independently. - Add root-agent and subagent guidance that overrides require a partial or context-free fork and should only be used when explicitly authorized. ## Testing - Cover configuration parsing and defaults, usage-hint preservation, and tool-schema behavior with override exposure enabled and disabled. GitOrigin-RevId: 92370498108c96fbd51f32965624ce531e991d9a
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Expose model overrides for multi-agent v2 spawns
What changed
features.multi_agent_v2.expose_spawn_agent_model_overridessetting, enabled by default, to exposemodelandreasoning_efforton the v2spawn_agenttool.Testing