Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv
/plugin marketplace add macnversion/skills/plugin install xlsx@mac-skillsPayload Development plugin - covers collections, fields, hooks, access control, plugins, and database adapters.
Database architecture, schema design, and SQL optimization for production systems
Schema validation, data quality monitoring, streaming validation pipelines, and input validation for backend APIs
Database migration automation, observability, and cross-database migration strategies