obsidian-knowledge-agent AGENTS.md

obsidian-knowledge-agent AGENTS.md is an instructions file for Codex, OpenCode from Michael-OvO/obsidian-knowledge-agent. It costs 1,417 tokens per session, scanned A, original, MIT.

Instructions for an Obsidian knowledge agent. Obsidian is a note-taking app that stores information in a folder called a vault; this agent turns links, ideas, documents, transcripts, courses, and books into organized notes.

In plain words
What is it for?
Choosing the right amount of note organization, creating notes and indexes, and building a larger knowledge structure for substantial research or study material.
Why use it?
They help the agent add useful structure without making small pieces of information unnecessarily complicated.

Instructions file for CodexOpenCode

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 instructions/michael-ovo/obsidian-knowledge-agent/agents-md
Clone the repo
git clone --depth 1 https://github.com/Michael-OvO/obsidian-knowledge-agent

Made for: Codex, OpenCode.

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-knowledge-agent AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/michael-ovo/obsidian-knowledge-agent/agents-md.svg)](https://agentmods.dev/instructions/michael-ovo/obsidian-knowledge-agent/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/michael-ovo/obsidian-knowledge-agent/agents-md"><img src="https://agentmods.dev/badge/instructions/michael-ovo/obsidian-knowledge-agent/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,417 This file is loaded in full into every session.
When invoked 1,417 The same file — it is already loaded in full.
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 $0.01417 $0.01417
Opus 5 $0.00709 $0.00709
Sonnet 5 $0.00283 $0.00283
Haiku 4.5 $0.00142 $0.00142

Measured 5d ago against content hash 86be13090955, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

obsidian-knowledge-agent AGENTS.md 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 5d 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.

AGENTS.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Obsidian Knowledge Agent

For any AI agent (Codex, Claude, Cursor, …) working in this vault. Read this file first, then follow the instruction modules in .agents/.

This vault has a knowledge agent that helps turn anything — a stray thought, a link, a PDF, a transcript, a whole syllabus or book — into notes worth keeping. It works for any subject and any vault: research, coursework, work projects, reading, personal knowledge. It does as much or as little structuring as the material actually needs.

The agent has one job: leave the vault a little more useful than it found it. Everything below is in service of that, not the other way around.


How to work

Three principles sit above every rule in .agents/:

  1. Match the effort to the material. A link or a one-line idea becomes a single clean note — no folders, no index, no ceremony. A small reading set becomes a few notes and a light index. Only a genuinely large, structured input (a syllabus, a book, a big paper collection) earns the full scaffold with a concept-graph canvas. Default to the lightest touch that does the job, and escalate only when the material clearly asks for it. See "Choose the altitude" in .agents/ingestion-workflow.md.

  2. Follow the vault you're in. Before creating anything, look at how this vault is already organized — its folders, naming, frontmatter, link style — and fit in. The branches below are sensible defaults for an empty vault; in an existing vault, match what's there rather than imposing a new taxonomy. What the agent learns about a vault's real shape lives in .agents/learned/.

  3. Stay natural and low-friction. Respond to plain requests ("save this", "make a note on X", "organize my inbox", "remember this", "research Y and write it up"), not just formal commands. Do the obvious thing; only stop to ask when an action is destructive or genuinely ambiguous.


What This Vault Is

A personal knowledge base in Obsidian — structured, teaching-quality notes, organized however suits the work. The branches below are example defaults; rename, add, remove, or ignore them to fit your domains, and match an existing vault's structure when there is one.

Read the full file on GitHub · 91 lines

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. 5d ago First seen · 91 lines · 1,417 tokens per session scan A 86be13090955

Subscribe to this mod's changes

obsidian-knowledge-agent AGENTS.md is an instructions file published in the GitHub repository Michael-OvO/obsidian-knowledge-agent (206 stars, last pushed 2mo ago), licensed MIT. It adds 1,417 tokens to every session, about $0.0071 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.

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