eyaltoledano/claude-task-master · error · Error

Object name is required for object generation

Error message

Object name is required for object generation

What it means

generateObject requires an objectName string that names the object being generated (used for logging and result extraction in the object response). The error is thrown when params.objectName is missing/empty while schema is present.

Source

Thrown at src/ai-providers/base-provider.js:500

			return result;
		} catch (error) {
			this.handleError('object streaming', error);
		}
	}

	/**
	 * Generates a structured object using the provider's model
	 */
	async generateObject(params) {
		try {
			this.validateParams(params);
			this.validateMessages(params.messages);

			if (!params.schema) {
				throw new Error('Schema is required for object generation');
			}
			if (!params.objectName) {
				throw new Error('Object name is required for object generation');
			}

			log(
				'debug',
				`Generating ${this.name} object ('${params.objectName}') with model: ${params.modelId}`
			);

			const client = await this.getClient(params);

			// Get Sentry telemetry config with function ID and metadata for better tracing
			// Format: provider.model.command.method.objectName
			const commandName = params.commandName || 'unknown';
			const functionId = `${this.name}.${params.modelId}.${commandName}.generateObject.${params.objectName}`;

			// Build telemetry metadata for enhanced filtering/grouping in Sentry
			const metadata = {
				command: commandName,
				outputType: params.outputType,

View on GitHub (pinned to c0c98d367c)

Solutions

1. Pass a descriptive objectName string in the params
2. Ensure any dynamically computed objectName is non-empty
3. Include objectName together with schema — both are required for generateObject

Example fix

// before
await provider.generateObject({ modelId: 'x', messages, schema });
// after
await provider.generateObject({ modelId: 'x', messages, schema, objectName: 'task' });

function assertGenerateObjectParams(params) {
  if (!params?.schema) throw new Error('generateObject requires params.schema');
  if (!params?.objectName || typeof params.objectName !== 'string') throw new Error('generateObject requires a non-empty params.objectName');
}

function hasObjectName(params) {
  return typeof params === 'object' && params !== null && typeof params.objectName === 'string' && params.objectName.length > 0;
}

try {
  await provider.generateObject(params);
} catch (e) {
  if (e.message === 'Object name is required for object generation') {
    console.error('params.objectName missing; pass a descriptive name');
  } else throw e;
}

When it happens

Trigger: Calling provider.generateObject({ modelId, messages, schema }) without objectName, or with objectName: undefined/'' — typically after adding a schema but forgetting the name.

Common situations: Migrating from generateText to generateObject; refactoring call sites where objectName was dropped; dynamically computed objectName evaluating to empty string.

Understand the failure class

Background: Missing required parameter errors: what 'X is required' and 'the required X param is missing' mean, and how to fix them — this error's family across 27 libraries.

Related errors

• Parameter validation failed: ${errors.join('; ')}
• Temperature must be between 0 and 1
• maxTokens must be a finite number greater than 0
• Invalid or empty messages array provided
• Schema is required for object generation

AI-assisted analysis of eyaltoledano/claude-task-master@c0c98d367c (2026-08-29). Data as JSON: /api/errors/0f50af576c7c293a. Report an issue: GitHub.