earendil-works/pi · error

Bedrock stream ended without a stop reason

Error message

Bedrock stream ended without a stop reason

What it means

Error "Bedrock stream ended without a stop reason" thrown in earendil-works/pi.

Source

Thrown at packages/ai/src/api/bedrock-converse-stream.ts:318

				} else if (item.internalServerException) {
					throw item.internalServerException;
				} else if (item.modelStreamErrorException) {
					throw item.modelStreamErrorException;
				} else if (item.validationException) {
					throw item.validationException;
				} else if (item.throttlingException) {
					throw item.throttlingException;
				} else if (item.serviceUnavailableException) {
					throw item.serviceUnavailableException;
				}
			}

			if (options.signal?.aborted) {
				throw new Error("Request was aborted");
			}

			if (output.stopReason === "pending") {
				throw new Error("Bedrock stream ended without a stop reason");
			}
			if (output.stopReason === "error" || output.stopReason === "aborted") {
				throw new Error(output.errorMessage || "An unknown error occurred");
			}

			// A stream can settle without stopping every block, so finalize here too.
			for (const block of output.content) finalizeStreamingBlock(block as Block);
			stream.push({ type: "done", reason: output.stopReason, message: output });
			stream.end();
		} catch (error) {
			for (const block of output.content) {
				finalizeStreamingBlock(block as Block);
			}
			output.stopReason = options.signal?.aborted ? "aborted" : "error";
			output.errorMessage = formatBedrockError(error);
			if (output.stopReason === "error") {
				appendBedrockFailureDiagnostic(output, error, responseRequestId);
			}

View on GitHub (pinned to 4af9d21d3b)

Solutions

1. Retry; inspect the final ConverseStream events for an error entry.

When it happens

Trigger: Thrown at packages/ai/src/api/bedrock-converse-stream.ts:318 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/7792ef77b4f9ff77. Report an issue: GitHub.