Skip to content

Make GPT-5.5 large prompt default #322166

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
jukasper wants to merge 3 commits into
base: main
Choose a base branch
from
Draft

Make GPT-5.5 large prompt default #322166

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
065c403
Make GPT-5.5 large prompt default
jukasper Jun 19, 2026
ef02e67
Keep GPT-5.5 economical prompt separate
jukasper Jun 19, 2026
63e3d04
Remove GPT-5.5 economical prompt experiment
jukasper Jun 19, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 0 additions & 18 deletions extensions/copilot/package.json
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4150,24 +4150,6 @@
"onExp"
]
},
"github.copilot.chat.gpt55EconomicalSearchAndEdit.enabled": {
"type": "boolean",
"default": false,
"markdownDescription": "%github.copilot.config.gpt55EconomicalSearchAndEdit.enabled%",
"tags": [
"experimental",
"onExp"
]
},
"github.copilot.chat.gpt55LargePromptSections.enabled": {
"type": "boolean",
"default": false,
"markdownDescription": "%github.copilot.config.gpt55LargePromptSections.enabled%",
"tags": [
"experimental",
"onExp"
]
},
"github.copilot.chat.anthropic.tools.websearch.enabled": {
"type": "boolean",
"default": false,
Expand Down
2 changes: 0 additions & 2 deletions extensions/copilot/package.nls.json
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -355,8 +355,6 @@
"github.copilot.config.gemini3GetChangedFilesTool.enabled": "Enables the Get Changed Files tool for gemini-3 models.",
"github.copilot.config.gemini3LowReasoningEffort.enabled": "Sets the reasoning effort to low for gemini-3 models.",
"github.copilot.config.gpt55ReadFileTool.enabled": "Enables the Read File tool for gpt-5.5 models.",
"github.copilot.config.gpt55EconomicalSearchAndEdit.enabled": "Enables economical search and edit instructions for gpt-5.5 models.",
"github.copilot.config.gpt55LargePromptSections.enabled": "Enables additional gpt-5.4 large prompt sections for gpt-5.5 models.",
"github.copilot.config.anthropic.tools.websearch.enabled": "Enable Anthropic's native web search tool for BYOK Claude models. When enabled, allows Claude to search the web for current information. \n\n**Note**: This is an experimental feature only available for BYOK Anthropic Claude models.",
"github.copilot.config.anthropic.tools.websearch.maxUses": "Maximum number of web searches allowed per request. Valid range is 1 to 20. Prevents excessive API calls within a single interaction. If Claude exceeds this limit, the response returns an error.",
"github.copilot.config.anthropic.tools.websearch.allowedDomains": "List of domains to restrict web search results to (e.g., `[\"example.com\", \"docs.example.com\"]`). Domains should not include the HTTP/HTTPS scheme. Subdomains are automatically included. Cannot be used together with `#github.copilot.chat.anthropic.tools.websearch.blockedDomains#`; configuring both will cause web search requests to fail.",
Expand Down
143 changes: 60 additions & 83 deletions extensions/copilot/src/extension/prompts/node/agent/openai/gpt55BasePrompt.tsx
View file
Open in desktop

Large diffs are not rendered by default.

38 changes: 0 additions & 38 deletions extensions/copilot/src/extension/prompts/node/agent/openai/gpt55EconomicalPrompt.tsx
View file
Open in desktop

This file was deleted.

72 changes: 0 additions & 72 deletions extensions/copilot/src/extension/prompts/node/agent/openai/gpt55LargePrompt.tsx
View file
Open in desktop

This file was deleted.

25 changes: 1 addition & 24 deletions extensions/copilot/src/extension/prompts/node/agent/openai/gpt55Prompt.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,46 +3,23 @@
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/

import { isGpt55, isGpt55EconomicalSearchAndEditExp, isGpt55LargePromptSectionsExp } from '../../../../../platform/endpoint/common/chatModelCapabilities';
import { isGpt55 } from '../../../../../platform/endpoint/common/chatModelCapabilities';
import { IChatEndpoint } from '../../../../../platform/networking/common/networking';
import { IInstantiationService } from '../../../../../util/vs/platform/instantiation/common/instantiation';
import { Gpt55CopilotIdentityRule } from '../../base/copilotIdentity';
import { Gpt5SafetyRule } from '../../base/safetyRules';
import { CopilotIdentityRulesConstructor, IAgentPrompt, PromptRegistry, ReminderInstructionsConstructor, SafetyRulesConstructor, SystemPrompt } from '../promptRegistry';
import { Gpt55PromptBase, Gpt55ReminderInstructions } from './gpt55BasePrompt';
import { Gpt55EconomicalSearchAndEditPromptExp } from './gpt55EconomicalPrompt';
import {
Gpt55LargePromptSectionsExp,
Gpt55LargePromptSectionsWithEconomicalSearchAndEditExp
} from './gpt55LargePrompt';

export class Gpt55Prompt extends Gpt55PromptBase { }

class Gpt55PromptResolver implements IAgentPrompt {
constructor(
@IInstantiationService private readonly instantiationService: IInstantiationService,
) { }

static async matchesModel(endpoint: IChatEndpoint): Promise<boolean> {
return isGpt55(endpoint);
}

static readonly familyPrefixes = [];

resolveSystemPrompt(endpoint: IChatEndpoint): SystemPrompt | undefined {
const hasLargePromptSectionsExp = this.instantiationService.invokeFunction(isGpt55LargePromptSectionsExp, endpoint);
const hasEconomicalSearchAndEditExp = this.instantiationService.invokeFunction(isGpt55EconomicalSearchAndEditExp, endpoint);

if (hasLargePromptSectionsExp && hasEconomicalSearchAndEditExp) {
return Gpt55LargePromptSectionsWithEconomicalSearchAndEditExp;
}
if (hasLargePromptSectionsExp) {
return Gpt55LargePromptSectionsExp;
}
if (hasEconomicalSearchAndEditExp) {
return Gpt55EconomicalSearchAndEditPromptExp;
}

return Gpt55Prompt;
}

Expand Down
4 changes: 0 additions & 4 deletions extensions/copilot/src/platform/configuration/common/configurationService.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -988,10 +988,6 @@ export namespace ConfigKey {
export const EnableGemini3LowReasoningEffort = defineSetting<boolean>('chat.gemini3LowReasoningEffort.enabled', ConfigType.ExperimentBased, false);
/** Enable read_file tool for GPT-5.5 models */
export const EnableGpt55ReadFileTool = defineSetting<boolean>('chat.gpt55ReadFileTool.enabled', ConfigType.ExperimentBased, true);
/** Enable economical search and edit instructions for GPT-5.5 models */
export const EnableGpt55EconomicalSearchAndEdit = defineSetting<boolean>('chat.gpt55EconomicalSearchAndEdit.enabled', ConfigType.ExperimentBased, false);
/** Enable GPT-5.4 large prompt sections for GPT-5.5 models */
export const EnableGpt55LargePromptSections = defineSetting<boolean>('chat.gpt55LargePromptSections.enabled', ConfigType.ExperimentBased, false);
export const EnableChatImageUpload = defineSetting<boolean>('chat.imageUpload.enabled', ConfigType.ExperimentBased, true);
/** Enable Anthropic web search tool for BYOK Claude models */
export const AnthropicWebSearchToolEnabled = defineSetting<boolean>('chat.anthropic.tools.websearch.enabled', ConfigType.ExperimentBased, false);
Expand Down
18 changes: 0 additions & 18 deletions extensions/copilot/src/platform/endpoint/common/chatModelCapabilities.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -158,24 +158,6 @@ export function isGpt55(model: LanguageModelChat | IChatEndpoint | string) {
return family.startsWith('gpt-5.5') || HIDDEN_MODEL_B_HASHES.includes(h);
}

export function isGpt55EconomicalSearchAndEditExp(
accessor: ServicesAccessor,
model: LanguageModelChat | IChatEndpoint | string,
) {
const configurationService = accessor.get(IConfigurationService);
const experimentationService = accessor.get(IExperimentationService);
return isGpt55(model) && configurationService.getExperimentBasedConfig(ConfigKey.EnableGpt55EconomicalSearchAndEdit, experimentationService);
}

export function isGpt55LargePromptSectionsExp(
accessor: ServicesAccessor,
model: LanguageModelChat | IChatEndpoint | string,
) {
const configurationService = accessor.get(IConfigurationService);
const experimentationService = accessor.get(IExperimentationService);
return isGpt55(model) && configurationService.getExperimentBasedConfig(ConfigKey.EnableGpt55LargePromptSections, experimentationService);
}

export function isHiddenModelM(model: LanguageModelChat | IChatEndpoint | string) {
const family_hash = getCachedSha256Hash(typeof model === 'string' ? model : model.family);
return HIDDEN_FAMILY_M_HASHES.includes(family_hash);
Expand Down
Loading