obsidian

obsidian is a skill for Claude Code, Codex from moltis-org/moltis. It costs 17 tokens per session (420 once invoked), scanned A, original, MIT.

A way to read, search, and create Markdown notes in an Obsidian vault. Obsidian is a note-taking app that stores linked notes as local files.

In plain words
What is it for?
Use it to find notes, create new notes, append information, and connect related notes with links.
Why use it?
It lets an agent use an existing personal knowledge base without manually copying notes into the conversation.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for hermes-agent. Also seen: built for hermes-agent.

About the project

Moltis is a persistent personal agent server written in Rust that runs on hardware controlled by its user. It provides an AI agent with sandboxed command execution, model-provider connections, memory, voice, scheduling, messaging integrations, browser automation, and MCP tools. Its catalogue add-ons extend the agent’s workflows and available tools.

moltis-org/moltis · 2,845 stars · on GitHub · moltis.org

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.

agentmods
npx agentmods add skills/moltis-org/moltis/obsidian
Any agent
npx skills add moltis-org/moltis --skill obsidian
Clone the repo
git clone --depth 1 https://github.com/moltis-org/moltis

Made for: Claude Code, Codex.

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.

agentmods badge for obsidian

README.md
[![agentmods](https://agentmods.dev/badge/skills/moltis-org/moltis/obsidian.svg)](https://agentmods.dev/skills/moltis-org/moltis/obsidian)
Your own site
<a href="https://agentmods.dev/skills/moltis-org/moltis/obsidian"><img src="https://agentmods.dev/badge/skills/moltis-org/moltis/obsidian.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 420 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.00420
Opus 5 $0.00009 $0.00210
Sonnet 5 $0.00003 $0.00084
Haiku 4.5 $0.00002 $0.00042

Measured 2d ago against content hash 75872135e2e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

obsidian 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 2d 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

Copies of this mod

6 near-identical copies found in the catalogue:

  • obsidian — 88% identical, 8 lines differ
  • obsidian — 88% identical, 8 lines differ
  • obsidian — 88% identical, 8 lines differ
  • obsidian — 88% identical, 8 lines differ
  • obsidian — 88% identical, 8 lines differ
  • obsidian — 81% identical, 8 lines differ
crates/skills/src/assets/note-taking/obsidian/SKILL.md · 73 lines

What it actually says

Obsidian Vault

Location: Set via OBSIDIAN_VAULT_PATH environment variable (e.g. in your environment).

If unset, defaults to ~/Documents/Obsidian Vault.

Note: Vault paths may contain spaces - always quote them.

Read a note

VAULT="${OBSIDIAN_VAULT_PATH:-$HOME/Documents/Obsidian Vault}"
cat "$VAULT/Note Name.md"

List notes

VAULT="${OBSIDIAN_VAULT_PATH:-$HOME/Documents/Obsidian Vault}"

# All notes
find "$VAULT" -name "*.md" -type f

# In a specific folder
ls "$VAULT/Subfolder/"
VAULT="${OBSIDIAN_VAULT_PATH:-$HOME/Documents/Obsidian Vault}"

# By filename
find "$VAULT" -name "*.md" -iname "*keyword*"

# By content
grep -rli "keyword" "$VAULT" --include="*.md"

Create a note

VAULT="${OBSIDIAN_VAULT_PATH:-$HOME/Documents/Obsidian Vault}"
cat > "$VAULT/New Note.md" << 'ENDNOTE'
# Title

Content here.
ENDNOTE

Append to a note

VAULT="${OBSIDIAN_VAULT_PATH:-$HOME/Documents/Obsidian Vault}"
echo "
New content here." >> "$VAULT/Existing Note.md"

Obsidian links notes with [[Note Name]] syntax. When creating notes, use these to link related content.

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.

  1. 2d ago First seen · 73 lines · 17 tokens per session scan A 75872135e2e6

Subscribe to this mod's changes

obsidian is a skill published in the GitHub repository moltis-org/moltis (2,845 stars, last pushed 3d ago), licensed MIT. It adds 17 tokens to every session and 420 once invoked, about $0.0001 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 2026-09-03.