obsidian

obsidian is a skill for Claude Code, Codex from chemany/Mente. It costs 17 tokens per session (382 once invoked), scanned A, a copy of obsidian, MIT.

A connection to an Obsidian vault, which is a folder of linked Markdown notes. It can read, search, create, and update those notes.

In plain words
What is it for?
Use it to find notes by name or content, create new notes, append information, and link related notes with Obsidian's wiki-link syntax.
Why use it?
It lets an agent work with an existing personal knowledge base without manually opening and editing each note.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/chemany/mente/obsidian
Any agent
npx skills add chemany/Mente --skill obsidian
Clone the repo
git clone --depth 1 https://github.com/chemany/Mente

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/chemany/mente/obsidian.svg)](https://agentmods.dev/skills/chemany/mente/obsidian)
Your own site
<a href="https://agentmods.dev/skills/chemany/mente/obsidian"><img src="https://agentmods.dev/badge/skills/chemany/mente/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 382 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 88% 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.00382
Opus 5 $0.00009 $0.00191
Sonnet 5 $0.00003 $0.00076
Haiku 4.5 $0.00002 $0.00038

Measured 2d ago against content hash 0adb2b366840, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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

This is a copy

88% identical to obsidian — 8 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/note-taking/obsidian/SKILL.md · 67 lines

What it actually says

Obsidian Vault

Location: Set via OBSIDIAN_VAULT_PATH environment variable (e.g. in ~/.hermes/.env).

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 · 67 lines · 17 tokens per session scan A 0adb2b366840

Subscribe to this mod's changes

obsidian is a skill published in the GitHub repository chemany/Mente (11 stars, last pushed 3mo ago), licensed MIT. It adds 17 tokens to every session and 382 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to obsidian, differing in 8 lines, and is treated as a copy.