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Merged
pull merged 1 commit into from
Jul 19, 2026
+11 −4
Merged

[pull] main from microsoft:main #1496

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13 changes: 10 additions & 3 deletions extensions/copilot/src/extension/prompts/node/agent/geminiPrompts.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -33,9 +33,16 @@ export class DefaultGeminiAgentPrompt extends PromptElement<DefaultAgentPromptPr
async render(state: void, sizing: PromptSizing) {
const tools = detectToolCapabilities(this.props.availableTools);

// Experiment to reduce Gemini 3.5 Flash's proactive tool usage by instructing it to minimize tool calls.
const reduceToolUse = this.props.modelFamily?.toLowerCase().includes('gemini-3.5-flash')
&& this.configurationService.getExperimentBasedConfig(ConfigKey.EnableGemini35FlashReducedToolUsePrompt, this.experimentationService);
// Experiment to reduce Gemini models' proactive tool usage by instructing them to minimize tool calls.
// Applies to all Gemini models except the gemini-3-flash and gemini-2 families.
const modelFamily = this.props.modelFamily?.toLowerCase();
const isExcludedGeminiFamily = !!modelFamily && (
modelFamily.includes('gemini-3-flash')
|| modelFamily.includes('gemini-2')
);
const reduceToolUse = !!modelFamily?.includes('gemini')
&& !isExcludedGeminiFamily
&& this.configurationService.getExperimentBasedConfig(ConfigKey.EnableGemini3ReducedToolUsePrompt, this.experimentationService);

return <InstructionMessage>
<Tag name='instructions'>
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2 changes: 1 addition & 1 deletion extensions/copilot/src/platform/configuration/common/configurationService.ts
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Expand Up @@ -1061,7 +1061,7 @@ export namespace ConfigKey {

export const EnableAlternateGptPrompt = defineSetting<boolean>('chat.alternateGptPrompt.enabled', ConfigType.ExperimentBased, false);
export const EnableAlternateGeminiModelFPrompt = defineSetting<boolean>('chat.alternateGeminiModelFPrompt.enabled', ConfigType.ExperimentBased, false);
export const EnableGemini35FlashReducedToolUsePrompt = defineSetting<boolean>('chat.gemini35FlashReducedToolUsePrompt.enabled', ConfigType.ExperimentBased, true);
export const EnableGemini3ReducedToolUsePrompt = defineSetting<boolean>('chat.gemini35FlashReducedToolUsePrompt.enabled', ConfigType.ExperimentBased, true);

export const EnableOrganizationCustomAgents = defineSetting<boolean>('chat.organizationCustomAgents.enabled', ConfigType.Simple, true);
export const EnableOrganizationInstructions = defineSetting<boolean>('chat.organizationInstructions.enabled', ConfigType.Simple, true);
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