microsoft/vscode · error · Error

The settings `github.copilot.chat.anthropic.tools.websearch.

Error message

The settings `github.copilot.chat.anthropic.tools.websearch.allowedDomains` and `github.copilot.chat.anthropic.tools.websearch.blockedDomains` cannot be used together. Please configure only one.

What it means

Error "The settings `github.copilot.chat.anthropic.tools.websearch.allowedDomains` and `github.copilot.chat.anthropic.tools.websearch.blockedDomains` cannot be used together. Please configure only one." thrown in microsoft/vscode.

Source

Thrown at extensions/copilot/src/extension/byok/vscode-node/anthropicProvider.ts:283

			const params: Anthropic.Beta.Messages.MessageCreateParamsStreaming = {
				model: model.id,
				messages: convertedMessages,
				max_tokens: model.maxOutputTokens,
				stream: true,
				system: [system],
				tools: tools.length > 0 ? tools : undefined,
				thinking: supportsAdaptiveThinking
					? { type: 'adaptive' as const }
					: thinkingBudget ? { type: 'enabled' as const, budget_tokens: thinkingBudget } : undefined,
				...(effort ? { output_config: { effort } } : {}),
				context_management: contextManagement as Anthropic.Beta.Messages.BetaContextManagementConfig | undefined,
			};

			const wrappedProgress = new RecordedProgress(progress);

			try {
				if (webSearchDomainConflictError) {
					throw new Error(webSearchDomainConflictError);
				}
				const result = await this._makeRequest(anthropicClient, wrappedProgress, params, betas, token, issuedTime);
				if (result.ttft) {
					pendingLoggedChatRequest.markTimeToFirstToken(result.ttft);
				}
				const responseDeltas: IResponseDelta[] = wrappedProgress.items.map((i): IResponseDelta => {
					if (i instanceof LanguageModelTextPart) {
						return { text: i.value };
					} else if (i instanceof LanguageModelToolCallPart) {
						return {
							text: '',
							copilotToolCalls: [{
								name: i.name,
								arguments: JSON.stringify(i.input),
								id: i.callId
							}]
						};
					} else if (i instanceof LanguageModelToolResultPart) {

View on GitHub (pinned to a94b963a32)

When it happens

Trigger: Thrown at extensions/copilot/src/extension/byok/vscode-node/anthropicProvider.ts:283 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microsoft/vscode@a94b963a32 (2026-08-12). Data as JSON: /api/errors/2e9fc02f28d27840. Report an issue: GitHub.