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Add hidden model E #2460

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2c1a726
Add hidden model E
kycutler Dec 3, 2025
71b528c
Send effort=medium by default in responses API (#2359)
roblourens Dec 3, 2025
a87f7b1
Prompt updates
kycutler Dec 7, 2025
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13 changes: 7 additions & 6 deletions src/extension/prompts/node/agent/agentPrompt.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import { BasePromptElementProps, Chunk, Image, PromptElement, PromptPiece, Promp
import type { ChatRequestEditedFileEvent, LanguageModelToolInformation, NotebookEditor, TaskDefinition, TextEditor } from 'vscode';
import { ChatLocation } from '../../../../platform/chat/common/commonTypes';
import { ConfigKey, IConfigurationService } from '../../../../platform/configuration/common/configurationService';
import { isHiddenModelB, isHiddenModelC, isHiddenModelD, isVSCModelA, modelNeedsStrongReplaceStringHint } from '../../../../platform/endpoint/common/chatModelCapabilities';
import { isHiddenModelB, isHiddenModelC, isHiddenModelD, isHiddenModelE, isVSCModelA, modelNeedsStrongReplaceStringHint } from '../../../../platform/endpoint/common/chatModelCapabilities';
import { CacheType } from '../../../../platform/endpoint/common/endpointTypes';
import { IEnvService, OperatingSystem } from '../../../../platform/env/common/envService';
import { getGitHubRepoInfoFromContext, IGitService } from '../../../../platform/git/common/gitService';
Expand Down Expand Up @@ -92,7 +92,7 @@ export class AgentPrompt extends PromptElement<AgentPromptProps> {
const baseAgentInstructions = <>
<SystemMessage>
You are an expert AI programming assistant, working with a user in the VS Code editor.<br />
{this.props.endpoint.family.startsWith('gpt-5') || this.props.endpoint.family.startsWith('arctic-fox') || await isHiddenModelB(this.props.endpoint) || await isHiddenModelC(this.props.endpoint) || await isHiddenModelD(this.props.endpoint) ? (
{this.props.endpoint.family.startsWith('gpt-5') || this.props.endpoint.family.startsWith('arctic-fox') || await isHiddenModelB(this.props.endpoint) || await isHiddenModelE(this.props.endpoint) || await isHiddenModelC(this.props.endpoint) || await isHiddenModelD(this.props.endpoint) ? (
<>
<GPT5CopilotIdentityRule />
<Gpt5SafetyRule />
Expand Down Expand Up @@ -410,7 +410,7 @@ class ToolReferencesHint extends PromptElement<ToolReferencesHintProps> {
<Tag name='toolReferences'>
The user attached the following tools to this message. The userRequest may refer to them using the tool name with "#". These tools are likely relevant to the user's query:<br />
{this.props.toolReferences.map(tool => `- ${tool.name}`).join('\n')} <br />
{(this.props.modelFamily?.startsWith('gpt-5') || this.props.modelFamily?.startsWith('arctic-fox') || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily)) && <>
{(this.props.modelFamily?.startsWith('gpt-5') || this.props.modelFamily?.startsWith('arctic-fox') || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelE(this.props.modelFamily) || await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily)) && <>
Start by using the most relevant tool attached to this message—the user expects you to act with it first.<br />
</>}
</Tag>
Expand Down Expand Up @@ -726,7 +726,7 @@ export class KeepGoingReminder extends PromptElement<IKeepGoingReminderProps> {
}

async render(state: void, sizing: PromptSizing) {
if ((this.props.modelFamily === 'gpt-4.1' || this.props.modelFamily?.startsWith('gpt-5') || await isHiddenModelB(this.props.modelFamily)) && !(await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily))) {
if ((this.props.modelFamily === 'gpt-4.1' || this.props.modelFamily?.startsWith('gpt-5') || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelE(this.props.modelFamily)) && !(await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily))) {
if (this.configurationService.getExperimentBasedConfig(ConfigKey.EnableAlternateGptPrompt, this.experimentationService)) {
// Extended reminder
return <>
Expand All @@ -741,7 +741,7 @@ export class KeepGoingReminder extends PromptElement<IKeepGoingReminderProps> {
</>;
} else if (this.props.modelFamily === 'gpt-5-codex') {
return undefined;
} else if (this.props.modelFamily?.startsWith('gpt-5') || await isHiddenModelB(this.props.modelFamily)) {
} else if (this.props.modelFamily?.startsWith('gpt-5') || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelE(this.props.modelFamily)) {
return <>
You are an agent—keep going until the user's query is completely resolved before ending your turn. ONLY stop if solved or genuinely blocked.<br />
Take action when possible; the user expects you to do useful work without unnecessary questions.<br />
Expand Down Expand Up @@ -789,7 +789,8 @@ async function getExplanationReminder(modelFamily: string | undefined, hasTodoTo

const isGpt5Mini = modelFamily === 'gpt-5-mini';
const isModelB = await isHiddenModelB(modelFamily);
return modelFamily?.startsWith('gpt-5') || isModelB ?
const isModelE = await isHiddenModelE(modelFamily);
return modelFamily?.startsWith('gpt-5') || isModelB || isModelE ?
<>
Skip filler acknowledgements like "Sounds good" or "Okay, I will…". Open with a purposeful one-liner about what you're doing next.<br />
When sharing setup or run steps, present terminal commands in fenced code blocks with the correct language tag. Keep commands copyable and on separate lines.<br />
Expand Down
6 changes: 3 additions & 3 deletions src/extension/prompts/node/agent/defaultAgentInstructions.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
import { BasePromptElementProps, PromptElement, PromptSizing } from '@vscode/prompt-tsx';
import type { LanguageModelToolInformation } from 'vscode';
import { ConfigKey, IConfigurationService } from '../../../../platform/configuration/common/configurationService';
import { isHiddenModelB, isHiddenModelC, isHiddenModelD } from '../../../../platform/endpoint/common/chatModelCapabilities';
import { isHiddenModelB, isHiddenModelC, isHiddenModelD, isHiddenModelE } from '../../../../platform/endpoint/common/chatModelCapabilities';
import { IExperimentationService } from '../../../../platform/telemetry/common/nullExperimentationService';
import { LanguageModelToolMCPSource } from '../../../../vscodeTypes';
import { ToolName } from '../../../tools/common/toolNames';
Expand Down Expand Up @@ -402,11 +402,11 @@ export class ApplyPatchInstructions extends PromptElement<DefaultAgentPromptProp

async render(state: void, sizing: PromptSizing) {
const isGpt5 = this.props.modelFamily?.startsWith('gpt-5') === true;
const useSimpleInstructions = (isGpt5 || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily) || this.props.modelFamily?.startsWith('arctic-fox')) && this.configurationService.getExperimentBasedConfig(ConfigKey.Internal.Gpt5AlternativePatch, this._experimentationService);
const useSimpleInstructions = (isGpt5 || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelE(this.props.modelFamily) || await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily) || this.props.modelFamily?.startsWith('arctic-fox')) && this.configurationService.getExperimentBasedConfig(ConfigKey.Internal.Gpt5AlternativePatch, this._experimentationService);

return <Tag name='applyPatchInstructions'>
To edit files in the workspace, use the {ToolName.ApplyPatch} tool. If you have issues with it, you should first try to fix your patch and continue using {ToolName.ApplyPatch}. {this.props.tools[ToolName.EditFile] && <>If you are stuck, you can fall back on the {ToolName.EditFile} tool, but {ToolName.ApplyPatch} is much faster and is the preferred tool.</>}<br />
{(isGpt5 || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily) || this.props.modelFamily?.startsWith('arctic-fox')) && <>Prefer the smallest set of changes needed to satisfy the task. Avoid reformatting unrelated code; preserve existing style and public APIs unless the task requires changes. When practical, complete all edits for a file within a single message.<br /></>}
{(isGpt5 || await isHiddenModelB(this.props.modelFamily) || await isHiddenModelE(this.props.modelFamily) || await isHiddenModelC(this.props.modelFamily) || await isHiddenModelD(this.props.modelFamily) || this.props.modelFamily?.startsWith('arctic-fox')) && <>Prefer the smallest set of changes needed to satisfy the task. Avoid reformatting unrelated code; preserve existing style and public APIs unless the task requires changes. When practical, complete all edits for a file within a single message.<br /></>}
{!useSimpleInstructions && <>
The input for this tool is a string representing the patch to apply, following a special format. For each snippet of code that needs to be changed, repeat the following:<br />
<ApplyPatchFormatInstructions /><br />
Expand Down
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