earendil-works/pi · error · Error

OAuth state mismatch

Error message

OAuth state mismatch

What it means

Error "OAuth state mismatch" thrown in earendil-works/pi.

Source

Thrown at packages/ai/src/auth/oauth/anthropic.ts:287

				signal: manualAbort.signal,
			})
			.then((input) => {
				manualInput = input;
				server.cancelWait();
			})
			.catch((error) => {
				manualError = error instanceof Error ? error : new Error(String(error));
				server.cancelWait();
			});

		const result = await server.waitForCode();
		if (manualError) throw manualError;
		if (result?.code) {
			code = result.code;
			state = result.state;
		} else if (manualInput) {
			const parsed = parseAuthorizationInput(manualInput);
			if (parsed.state && parsed.state !== verifier) throw new Error("OAuth state mismatch");
			code = parsed.code;
			state = parsed.state ?? verifier;
		}

		if (!code) {
			await manualPromise;
			if (manualError) throw manualError;
			if (manualInput) {
				const parsed = parseAuthorizationInput(manualInput);
				if (parsed.state && parsed.state !== verifier) throw new Error("OAuth state mismatch");
				code = parsed.code;
				state = parsed.state ?? verifier;
			}
		}

		if (!code) throw new Error("Missing authorization code");
		if (!state) throw new Error("Missing OAuth state");
		interaction.notify({ type: "progress", message: "Exchanging authorization code for tokens..." });

View on GitHub (pinned to 4af9d21d3b)

Solutions

1. Restart the OAuth flow; the callback state does not match the stored state.

When it happens

Trigger: Thrown at packages/ai/src/auth/oauth/anthropic.ts:287 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of earendil-works/pi@4af9d21d3b (2026-08-24). Data as JSON: /api/errors/3268fd22d41e97cb. Report an issue: GitHub.