Over a two-month period, Vandersmagt focused on backend development and API integration, contributing to both the sst/opencode and BerriAI/litellm repositories. In sst/opencode, he stabilized Mistral API integration by aligning tool call IDs and consolidating message normalization logic, which reduced edge-case failures and improved workflow reliability. For BerriAI/litellm, he developed a feature to expose request header metadata to guardrails on Bedrock pass-through endpoints, enabling enhanced validation and policy enforcement. His work, primarily using TypeScript and Python, demonstrated a methodical approach to debugging, testing, and feature delivery, addressing integration challenges with targeted, traceable solutions that improved system robustness.