Worked on the dbt-labs/dbt-mcp repository to enhance developer onboarding by updating the README.md with clearer configuration guidance. Focused on documentation, the work clarified that the DBT_PROJECT_DIR environment variable should reference the local repository path, directly addressing confusion highlighted in issue #104. This change streamlined the setup process for new contributors and reduced ambiguity in local development workflows. The update was implemented using Markdown and demonstrated best practices in documentation and version control. No bugs were fixed during this period, as the primary contribution centered on improving documentation quality and maintaining repository health through targeted, low-risk changes to onboarding materials.