Claudesidian is a preconfigured Obsidian vault structure that lets Claude Code help manage a personal knowledge base as a thinking partner. It is for people who organize notes and other knowledge in Obsidian, with Git-based version control and optional integrations for image analysis and web research. The catalogue add-ons provide Claude Code skills, agents, hooks, and settings for working with this vault.
Borrowing it
Nothing to install: this file belongs to heyitsnoah/claudesidian. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/heyitsnoah/claudesidian/main/.agents/skills/obsidian-markdown/SKILL.mdgit clone --depth 1 https://github.com/heyitsnoah/claudesidianWrote 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.
[](https://agentmods.dev/skills/heyitsnoah/claudesidian/obsidian-markdown)<a href="https://agentmods.dev/skills/heyitsnoah/claudesidian/obsidian-markdown"><img src="https://agentmods.dev/badge/skills/heyitsnoah/claudesidian/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.
<a href="https://agentmods.dev/skills/heyitsnoah/claudesidian/obsidian-markdown"><img src="https://agentmods.dev/badge/skills/heyitsnoah/claudesidian/obsidian-markdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00071 | $0.03155 |
| Opus 5 | $0.00036 | $0.01577 |
| Sonnet 5 | $0.00014 | $0.00631 |
| Haiku 4.5 | $0.00007 | $0.00315 |
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 10d 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.
Copies of this mod
8 near-identical copies found in the catalogue:
- obsidian-markdown — 100% identical, 0 lines differ
- obsidian-markdown — 100% identical, 0 lines differ
- obsidian-markdown — 100% identical, 1 lines differ
- obsidian-markdown — 100% identical, 0 lines differ
- obsidian-markdown — 100% identical, 0 lines differ
- obsidian-markdown — 98% identical, 3 lines differ
- obsidian-markdown — 98% identical, 3 lines differ
- obsidian-markdown — 97% identical, 14 lines differ
How it starts
The opening of the file, as written. The whole thing — 621 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Obsidian Flavored Markdown Skill
This skill enables skills-compatible agents to create and edit valid Obsidian Flavored Markdown, including all Obsidian-specific syntax extensions.
Overview
Obsidian uses a combination of Markdown flavors:
- CommonMark
- GitHub Flavored Markdown
- LaTeX for math
- Obsidian-specific extensions (wikilinks, callouts, embeds, etc.)
Basic Formatting
Paragraphs and Line Breaks
This is a paragraph.
This is another paragraph (blank line between creates separate paragraphs).
For a line break within a paragraph, add two spaces at the end
or use Shift+Enter.
Headings
# Heading 1
## Heading 2
### Heading 3
#### Heading 4
##### Heading 5
###### Heading 6
Text Formatting
| Style | Syntax | Example | Output |
|---|---|---|---|
| Bold | **text** or __text__ |
**Bold** |
Bold |
| Italic | *text* or _text_ |
*Italic* |
Italic |
| Bold + Italic | ***text*** |
***Both*** |
Both |
| Strikethrough | ~~text~~ |
~~Striked~~ |
|
| Highlight | ==text== |
==Highlighted== |
==Highlighted== |
| Inline code | `code` |
`code` |
code |
Escaping Formatting
Use backslash to escape special characters:
\*This won't be italic\*
\#This won't be a heading
1\. This won't be a list item
Common characters to escape: \*, \_, \#, \`, \|, \~
Internal Links (Wikilinks)
Basic Links
[[Note Name]]
[[Note Name.md]]
[[Note Name|Display Text]]
Link to Headings
[[Note Name#Heading]]
[[Note Name#Heading|Custom Text]]
[[#Heading in same note]]
[[##Search all headings in vault]]
Link to Blocks
[[Note Name#^block-id]]
[[Note Name#^block-id|Custom Text]]
Define a block ID by adding ^block-id at the end of a paragraph:
This is a paragraph that can be linked to. ^my-block-id
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.
- 10d ago First seen · 621 lines · 71 tokens per session scan A 50fd2c27aafa
obsidian-markdown is a skill published in the GitHub repository heyitsnoah/claudesidian (2,584 stars, last pushed 5mo ago), licensed MIT. It adds 71 tokens to every session and 3,155 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
media-ingest
Ingest video, audio, PDF, book, screenshot, and GitHub repo content into the brain. Multi-format handling with entity extraction and backlink propagation. Covers video-ingest, youtube-ingest, and book-ingest subtypes.
mem0-oss-to-platform
Plan and then execute a migration of a project from the mem0 open-source / self-hosted SDK (the local Memory class) to the mem0 Platform / hosted / managed SDK (the MemoryClient class). Use this whenever a developer wants to move, switch, or migrate their mem0 usage off OSS/self-hosted to the hosted API — e.g.…
Cortex
Operate Cortex, the LifeOS memory system — the typed Knowledge Archive (People, Companies, Ideas, Research with typed related: links) plus recall of prior work sessions, ISAs, and conversations. Search, add, harvest, develop, ingest, distill, graph-navigate, recall. USE WHEN cortex, knowledge, knowledge base, search…
memory
Use when the user asks to remember, recall, forget, update, search, or inspect durable OpenSquilla memory, including profile facts in USER.md and long-term notes in MEMORY.md or memory//.md.
ha-data-stores
Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…
establishing-project-context
Use when the user asks to establish shared project language, or project work exposes a conflicting, renamed, or deprecated domain term that needs active semantic modeling. Routine small tasks stay on the fast path.