This teaches Claude to write and edit .base files, Obsidian's native database layer that shipped in 2025. You get dynamic tables, cards, and lists over your vault notes with YAML-defined filters, formulas, and views. The skill covers the full syntax: filter operators, computed properties, groupBy logic, and the critical gotcha that subtracting dates returns a Duration object, so you must call .days before rounding. It defers to kepano's obsidian-skills substrate when available but includes a complete fallback reference. Useful if you're building dashboards, entity trackers, or reading lists inside Obsidian without reaching for Dataview queries.
npx skills add https://github.com/agricidaniel/claude-obsidian --skill obsidian-bases