Worked on extending safety-tooling to support the Claude 4 and 4.1 model series, focusing on seamless integration and improved model compatibility. Updated the ANTHROPIC_MODELS dictionary within the safety-research/safety-tooling repository to recognize new Claude model entries, enabling faster onboarding and evaluation for these models. Leveraged Python for configuration management and implemented dictionary-based model registry updates, ensuring traceable and maintainable changes through commit-based workflows. The work streamlined deployment processes and reduced manual configuration, demonstrating skills in API integration and collaborative repository management. No bugs were addressed during this period, with efforts concentrated on feature delivery and enhancing model support infrastructure.