obsidian-markdown skill

by guanyang·guanyang/open-agent-hub·973 stars·MIT

Create and edit Obsidian Flavored Markdown with wikilinks, embeds, callouts, properties, and other Obsidian-specific syntax. Use when working with .md files in Obsidian, or when the user mentions wikilinks, callouts, frontmatter, tags, embeds, or Obsidian notes.

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Is the obsidian-markdown skill safe?

Clean: nothing in its files matched our rules. We read 4 files in the folder on 2026-09-28.

No findings.

Install the obsidian-markdown skill

A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description.

git clone --depth 1 https://github.com/guanyang/open-agent-hub.git /tmp/open-agent-hub
mkdir -p ~/.claude/skills
cp -r /tmp/open-agent-hub/skills/obsidian-markdown ~/.claude/skills/obsidian-markdown

available in every project

In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub

The instructions your agent would load

SKILL.md as published, without the frontmatter. Read it on GitHub

Obsidian Flavored Markdown Skill

Create and edit valid Obsidian Flavored Markdown. Obsidian extends CommonMark and GFM with wikilinks, embeds, callouts, properties, comments, and other syntax. This skill covers only Obsidian-specific extensions -- standard Markdown (headings, bold, italic, lists, quotes, code blocks, tables) is assumed knowledge.

Workflow: Creating an Obsidian Note

Add frontmatter with properties (title, tags, aliases) at the top of the file. See PROPERTIES.md for all property types.
Write content using standard Markdown for structure, plus Obsidian-specific syntax below.
Link related notes using wikilinks ([[Note]]) for internal vault connections, or standard Markdown links for external URLs.
Embed content from other notes, images, or PDFs using the ![[embed]] syntax. See EMBEDS.md for all embed types.
Add callouts for highlighted information using > [!type] syntax. See CALLOUTS.md for all callout types.
Verify the note renders correctly in Obsidian's reading view.

When choosing between wikilinks and Markdown links: use [[wikilinks]] for notes within the vault (Obsidian tracks renames automatically) and text for external URLs only.

Internal Links (Wikilinks)

[[Note Name]]                          Link to note
[[Note Name|Display Text]]             Custom display text
[[Note Name#Heading]]                  Link to heading
[[Note Name#^block-id]]                Link to block
[[#Heading in same note]]              Same-note heading link

Define a block ID by appending ^block-id to any paragraph:

This paragraph can be linked to. ^my-block-id

For lists and quotes, place the block ID on a separate line after the block:

> A quote block

^quote-id

Embeds

Prefix any wikilink with ! to embed its content inline:

![[Note Name]]                         Embed full note
![[Note Name#Heading]]                 Embed section
![[image.png]]                         Embed image
![[image.png|300]]                     Embed image with width
![[document.pdf#page=3]]               Embed PDF page

See EMBEDS.md for audio, video, search embeds, and external images.

Callouts

> [!note]
> Basic callout.

> [!warning] Custom Title
> Callout with a custom title.

> [!faq]- Collapsed by default
> Foldable callout (- collapsed, + expanded).

Common types: note, tip, warning, info, example, quote, bug, danger, success, failure, question, abstract, todo.

See CALLOUTS.md for the full list with aliases, nesting, and custom CSS callouts.

Properties (Frontmatter)

---
title: My Note
date: 2024-01-15
tags:
  - project
  - active
aliases:
  - Alternative Name
cssclasses:
  - custom-class
---

Default properties: tags (searchable labels), aliases (alternative note names for link suggestions), cssclasses (CSS classes for styling).

See PROPERTIES.md for all property types, tag syntax rules, and advanced usage.

Comments

This is visible %%but this is hidden%% text.

%%
This entire block is hidden in reading view.
%%

Obsidian-Specific Formatting

==Highlighted text==                   Highlight syntax

Math (LaTeX)

Inline: $e^{i\pi} + 1 = 0$

Block:
$$
\frac{a}{b} = c
$$

Diagrams (Mermaid)

graph TD A[Start] --> B{Decision} B -->|Yes| C[Do this] B -->|No| D[Do that]

To link Mermaid nodes to Obsidian notes, add class NodeName internal-link;.

Footnotes

Text with a footnote[^1].

[^1]: Footnote content.

Inline footnote.^[This is inline.]

Complete Example

---
title: Project Alpha
date: 2024-01-15
tags:
  - project
  - active
status: in-progress
---

# Project Alpha

This project aims to [[improve workflow]] using modern techniques.

> [!important] Key Deadline
> The first milestone is due on ==January 30th==.

## Tasks

- [x] Initial planning
- [ ] Development phase
  - [ ] Backend implementation
  - [ ] Frontend design

## Notes

The algorithm uses $O(n \log n)$ sorting. See [[Algorithm Notes#Sorting]] for details.

![[Architecture Diagram.png|600]]

Reviewed in [[Meeting Notes 2024-01-10#Decisions]].

References

Obsidian Flavored Markdown
Internal links
Embed files
Callouts
Properties

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