microsoft/vscode · error · Error

Agent returned an unexpected HTTP ${response.status} error (

Error message

Agent returned an unexpected HTTP ${response.status} error (request id ${requestId || 'unknown'}).

What it means

Error "Agent returned an unexpected HTTP ${response.status} error (request id ${requestId || 'unknown'})." thrown in microsoft/vscode.

Source

Thrown at extensions/copilot/src/extension/review/node/githubReviewAgent.ts:620

			return {
				requestId: undefined,
				rl: undefined,
			};
		}
		throw err;
	} finally {
		disposable.dispose();
	}

	const requestId = response.headers.get('x-github-request-id') || undefined;

	if (!response.ok) {
		if (response.status === 402) {
			const err = new Error(`You have reached your Code Review quota limit.`);
			(err as any).severity = 'info';
			throw err;
		}
		throw new Error(`Agent returned an unexpected HTTP ${response.status} error (request id ${requestId || 'unknown'}).`);
	}

	return {
		requestId,
		rl: readline.createInterface({ input: Readable.fromWeb(response.body.toReadableStream()) }),
	};
}

export function reversePatch(after: string, diff: string) {
	const patch = parsePatch(diff.split(/\r?\n/));
	const patchedLines = reverseParsedPatch(after.split(/\r?\n/), patch);
	return patchedLines.join('\n');
}

export interface LineChange {
	beforeLineNumber: number;
	content: string;
	type: 'add' | 'remove';

View on GitHub (pinned to a94b963a32)

When it happens

Trigger: Thrown at extensions/copilot/src/extension/review/node/githubReviewAgent.ts:620 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/72d2d36885ca9453. Report an issue: GitHub.