obs

obs is a command for Claude Code from AdamTylerLynch/obsidian-agent-memory-skills. It costs 36 tokens per session (502 once invoked), scanned A, original, MIT.

A command for managing an Obsidian vault, which is a folder of linked notes, as persistent memory for coding-agent work.

In plain words
What is it for?
Initialising and analysing projects, writing summaries and notes, updating TODOs, searching stored knowledge, and linking related notes.
Why use it?
It gives the agent a way to store, find, and connect project knowledge across sessions instead of relying only on the current chat.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions CLAUDE.md; mentions Claude Code.

Part of the obs-memory plugin — 1 skill, 1 command shipped together

Good fit Initialising and analysing projects, writing summaries and notes, updating TODOs, searching stored knowledge, and linking related notes.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/adamtylerlynch/obsidian-agent-memory-skills/obs
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.

Clone the repo
git clone --depth 1 https://github.com/AdamTylerLynch/obsidian-agent-memory-skills

Made for: Claude Code.

Or install obs-memory, the plugin that ships this one along with the rest of its 1 skill, 1 command.

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 obs

README.md
[![agentmods](https://agentmods.dev/badge/commands/adamtylerlynch/obsidian-agent-memory-skills/obs/github.svg)](https://agentmods.dev/commands/adamtylerlynch/obsidian-agent-memory-skills/obs)
Your own site
<a href="https://agentmods.dev/commands/adamtylerlynch/obsidian-agent-memory-skills/obs"><img src="https://agentmods.dev/badge/commands/adamtylerlynch/obsidian-agent-memory-skills/obs/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.

agentmods 80×15 button for obs

Your own site · 80×15
<a href="https://agentmods.dev/commands/adamtylerlynch/obsidian-agent-memory-skills/obs"><img src="https://agentmods.dev/badge/commands/adamtylerlynch/obsidian-agent-memory-skills/obs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 502 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 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 $0.00036 $0.00502
Opus 5 $0.00018 $0.00251
Sonnet 5 $0.00007 $0.00100
Haiku 4.5 $0.00004 $0.00050

Measured 10d ago against content hash 09f22b6effae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

obs 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.

commands/obs.md · 39 lines

What it actually says

/obs — Vault Management (Claude Code)

Resolve variables, then dispatch to the obs-memory skill procedure.

Variable Resolution

$VAULT: $OBSIDIAN_VAULT_PATH env var → parse from CLAUDE.md ("Obsidian Knowledge Vault" section) → ~/Documents/AgentMemory

$VAULT_NAME: basename "$VAULT"

$PROJECT:

basename $(git rev-parse --show-toplevel 2>/dev/null) 2>/dev/null || basename $(pwd)

Verify $VAULT/Home.md exists. If not → suggest /obs init.

Dispatch

Execute the matching command procedure from the obs-memory skill (skills/obs-memory/SKILL.md § Commands):

$ARGUMENTS[0] Skill procedure
init init — pass $ARGUMENTS[1] as path
analyze analyze
recap recap
project project — pass $ARGUMENTS[1] as name
note note — pass $ARGUMENTS[1] as type, $ARGUMENTS[2] as name
todo todo — pass $ARGUMENTS[1..] as action
lookup lookup — pass $ARGUMENTS[1..] as query
relate relate — pass $ARGUMENTS[1..] as args
(empty) Session Start — Orientation
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. 10d ago First seen · 39 lines · 36 tokens per session scan A 09f22b6effae

Subscribe to this mod's changes

obs is a command published in the GitHub repository AdamTylerLynch/obsidian-agent-memory-skills (52 stars, last pushed 5mo ago), licensed MIT. It adds 36 tokens to every session and 502 once invoked, about $0.0002 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.