Developed a resilient invoice workflow for the dandavison/temporal-ai-agent repository, focusing on backend enhancements and API integration using Python. The work centered on refactoring agent goal configuration to default to a specific workflow and introducing a fallback mechanism for invoice creation when Stripe API keys are absent, utilizing dummy data in non-production environments. This approach reduced external dependencies and improved reliability, enabling uninterrupted development and testing. Emphasis was placed on environment configuration and defensive coding patterns, resulting in a cleaner, more maintainable codebase. The changes streamlined onboarding for developers and lowered operational risk by ensuring robust defaults and safer deployments.