# Obsidian Bases

> Create and edit Obsidian Bases (.base files) with views, filters, formulas, and summaries. Use when working with .base files, creating database-like views of notes, or when the user mentions Bases, table views, card views, filters, or formulas in Obsidian.

- Skill: `newmindsgroup/obsidian-bases` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add newmindsgroup/obsidian-bases`
- Raw SKILL.md: https://api.skillmd.com/api/skills/newmindsgroup/obsidian-bases/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: newmindsgroup (https://skillmd.com/u/newmindsgroup)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/newmindsgroup/obsidian-bases

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# Obsidian Bases Skill

Create and edit Obsidian Bases (.base files) with views, filters, formulas, and summaries. Use when working with .base files, creating database-like views of notes, or when the user mentions Bases, table views, card views, filters, or formulas in Obsidian.

## When to Use
- Use when creating or editing `.base` files in Obsidian.
- Use for database-like note views with filters, formulas, summaries, or cards/tables.
- Use when the user asks about Obsidian Bases specifically.

## Core Workflow
1. Confirm the request matches this skill's trigger, scope, and risk profile.
2. Use the topic map to identify the relevant pattern, checklist, or example before writing detailed guidance or code.
3. Load `references/full-guidance.md` when implementation details, examples, anti-patterns, validation checks, or edge cases are needed.
4. Apply only the relevant guidance instead of loading or repeating the entire reference by default.
5. Verify the result against any validation checks, limitations, security notes, or platform constraints in the reference.

## Topic Map
- Workflow
- Schema
- Filter Syntax
- Filter Structure
- Filter Operators
- Properties
- Three Types of Properties
- File Properties Reference
- The `this` Keyword
- Formula Syntax
- Key Functions
- Duration Type
- Date Arithmetic
- View Types
- Table View
- Cards View
- List View
- Map View

## Reference Map
- `references/full-guidance.md` preserves the complete original guidance, including examples and detailed edge cases.

## Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

## Progressive Loading
Keep this `SKILL.md` as the compact routing and workflow entrypoint. Load the reference file only when the user task requires the deeper implementation material.