claude-obsidian is a local knowledge system that turns source material into linked, source-cited Markdown notes in an Obsidian vault for use with Claude Code and compatible agent hosts. People use it to capture research, retrieve evidence-grounded answers, maintain knowledge, and map connections while retaining ownership of their files. The catalogue entries provide workflows and extensions for operating this knowledge system.
Borrowing it
Nothing to install: this file belongs to AgriciDaniel/claude-obsidian. 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/AgriciDaniel/claude-obsidian/main/AGENTS.mdgit clone --depth 1 https://github.com/AgriciDaniel/claude-obsidianWrote 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/instructions/agricidaniel/claude-obsidian/agents-md)<a href="https://agentmods.dev/instructions/agricidaniel/claude-obsidian/agents-md"><img src="https://agentmods.dev/badge/instructions/agricidaniel/claude-obsidian/agents-md/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/instructions/agricidaniel/claude-obsidian/agents-md"><img src="https://agentmods.dev/badge/instructions/agricidaniel/claude-obsidian/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01123 | $0.01123 |
| Opus 5.5 | $0.00449 | $0.00449 |
| Sonnet 5.5 | $0.00225 | $0.00225 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade A, and why
claude-obsidian 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
claude-obsidian: Agent Instructions
claude-obsidian is a local-first Agent Skills package for building source-cited,
compounding Obsidian knowledge bases. It also ships a Claude Code plugin adapter.
The portable workflow is implemented in skills/ and the standard-library
claude_obsidian/ core; host hooks never define knowledge behavior.
Product and vault boundaries
- This repository is the product source. It is not the default user vault.
- A user vault is the directory containing
.claude-obsidian.json,wiki/, and.raw/. Mutable state always belongs there. templates/vault/is the distributable seed. Rootwiki/,.raw/, and.vault-meta/are contributor state and are excluded from public artifacts.- Never derive a user vault from the plugin cache or
${CLAUDE_PLUGIN_ROOT}. - A checkout containing contributor-vault state has no marketplace catalog.
config/public-marketplace.jsonis injected as.claude-plugin/marketplace.jsononly inside the audited release artifact. An extracted distribution-clean artifact may retain that exact manifest and rebuild idempotently. A public default branch must be populated from the clean artifact, never by pushing contributor-vault state.
Resolve a vault in this order: explicit --vault,
CLAUDE_OBSIDIAN_VAULT, nearest .claude-obsidian.json, then an unambiguous
vault at or above the current directory. Fail closed when no vault is selected.
Bootstrap
- Read this file. In a development checkout, also read the host-only root
CLAUDE.mdwhen present; release artifacts intentionally omit it. - Read the selected skill completely.
- Read only the references that skill routes to.
- Resolve the user vault. If
wiki/hot.mdexists, read it silently. - For a new vault, run
python3 scripts/claude-obsidian.py init PATHfirst; apply only after reviewing the dry run. Useadoptfor an existing vault.
Canonical skills
All 15 skills live at skills/<name>/SKILL.md. They use the portable Agent
Skills frontmatter subset: exactly name and description. Do not add mirrored
files under commands/; Claude invokes plugin skills by namespaced names such
as /claude-obsidian:wiki.
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.
- 1mo ago First seen · 98 lines · 1,123 tokens per session scan A f12fe295445b
claude-obsidian AGENTS.md is an instructions file published in the GitHub repository AgriciDaniel/claude-obsidian (15,624 stars, last pushed today), licensed MIT. It adds 1,123 tokens to every session, about $0.0045 per session on Opus 5.5. 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 instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.