Brian Jan updated the documentation for the dbt-labs/dbt-mcp repository, focusing on clarifying environment configuration for developers. He revised the README.md to specify that the DBT_PROJECT_DIR variable should reference the local repository path, directly addressing confusion highlighted in issue #104. This change streamlined onboarding and reduced setup errors by aligning instructions with common local development workflows. Brian applied documentation best practices and maintained version control hygiene throughout the process, using Markdown to ensure clarity and consistency. The work was targeted and low-risk, improving the developer experience without altering code, and demonstrated a thoughtful approach to documentation-driven engineering improvements.