[{'Text': '\n    Environment Variables Guide:\n    • SNOWFLAKE_USER + SNOWFLAKE_PASSWORD → Database tools (execute_query, assemble_dataset_context, etc.)\n    • GITHUB_TOKEN → GitHub organization tools (search_issues_across_org, create_issue, etc.)\n    • PT_RESEARCH_DATABASE_URI → GBS tools (gbs_get_status, gbs_add_statistic, gbs_create_source)\n    • CHART_API_KEY → Authenticated chart generation (generate_authenticated_chart_url)\n'}]