What is obsidian-markdown?

A writing skill for Obsidian Markdown, the Markdown format used by Obsidian note-taking vaults. It supports Obsidian features such as links between notes, embedded files, callouts, properties, and tags.

Use it to create or edit Obsidian notes, add metadata, connect related notes, embed files, and format highlighted information.

It helps produce notes that Obsidian can render correctly instead of treating its special syntax as ordinary text.

obsidian-markdown — Skill for Claude Code by allemaar

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add allemaar/open-skills --skill obsidian-markdown

Clone the repo

git clone --depth 1 https://github.com/allemaar/open-skills

Made for: Claude Code.

Or install open-skills, the plugin that ships this one along with the rest of its 70 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/allemaar/open-skills/obsidian-markdown/github.svg)](https://agentmods.dev/skills/allemaar/open-skills/obsidian-markdown)

Your own site

<a href="https://agentmods.dev/skills/allemaar/open-skills/obsidian-markdown"><img src="https://agentmods.dev/badge/skills/allemaar/open-skills/obsidian-markdown/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/allemaar/open-skills/obsidian-markdown"><img src="https://agentmods.dev/badge/skills/allemaar/open-skills/obsidian-markdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,593 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 83% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00108	$0.01593
Opus 5	$0.00054	$0.00796
Sonnet 5	$0.00022	$0.00319
Haiku 4.5	$0.00011	$0.00159

Measured 11d ago against content hash 06e6e1d08372, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

obsidian-markdown scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

83% identical to obsidian-markdown — 19 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/obsidian-markdown/SKILL.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section 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](url) 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

Read the full file on GitHub · 214 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

11d ago First seen · 214 lines · 108 tokens per session scan A 06e6e1d08372

Subscribe to this mod's changes

obsidian-markdown is a skill published in the GitHub repository allemaar/open-skills (14 stars, last pushed yesterday), licensed Apache-2.0. It adds 108 tokens to every session and 1,593 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 83% identical to obsidian-markdown, differing in 19 lines, and is treated as a copy.

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