Worked on the bigcommerce/b2b-buyer-portal repository to enhance internal security hygiene and streamline onboarding for the Claude Code AI Coding Agent. Focused on documentation-driven improvements, including the creation of AGENTS.md to guide internal users and the update of .gitignore to prevent accidental commits of sensitive Claude Code artefacts and configuration files. Leveraged Markdown for clear internal instructions and utilized git for configuration management, ensuring that sensitive data remained protected without disrupting existing workflows. The work centered on internal tooling and did not introduce runtime changes, emphasizing low-risk, documentation-only updates validated through GitHub rendering and git check-ignore verification processes.