Borrowing it
Nothing to install: this file belongs to sethdavis512/obsidian-mcp-server. 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/sethdavis512/obsidian-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/sethdavis512/obsidian-mcp-serverWrote 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/sethdavis512/obsidian-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/sethdavis512/obsidian-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/sethdavis512/obsidian-mcp-server/claude-md.svg" alt="Measured on agentmods" 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 | $0.00815 | $0.00815 |
| Opus 5 | $0.00407 | $0.00407 |
| Sonnet 5 | $0.00163 | $0.00163 |
| Haiku 4.5 | $0.00081 | $0.00081 |
Grade A, and why
obsidian-mcp-server CLAUDE.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 7d 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 — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Development Commands
npm run build- Compile TypeScript to JavaScript in dist/npm run dev- Run MCP server in development mode (stdio transport)npm run dev:http- Run in development mode with HTTP transportnpm start- Run the compiled MCP server (stdio transport)npm run start:http- Run with HTTP transportnpm test- Build and run help command to verifynpm run clean- Remove dist/ directory
Architecture Overview
Core Components
- src/server.ts: MCP server factory using modern McpServer API with registerTool
- src/vault.ts: Obsidian vault operations (CRUD, search, links, tags)
- src/schemas.ts: Zod input validation schemas for all tools
- src/types.ts: TypeScript type definitions
- src/index.ts: Entry point with stdio/HTTP transport handling
Transport Modes
- Stdio Transport (default): Local MCP client communication via stdin/stdout
- Streamable HTTP Transport: Remote MCP access via
POST /mcp
Set TRANSPORT=http environment variable to use HTTP mode.
Tools (10 total)
| Tool | Description | Read-Only |
|---|---|---|
obsidian_list_notes |
List notes with pagination | Yes |
obsidian_read_note |
Read note content | Yes |
obsidian_write_note |
Create/update a note | No |
obsidian_delete_note |
Delete a note | No |
obsidian_search_notes |
Search by content/tags/folder | Yes |
obsidian_vault_stats |
Get vault statistics | Yes |
obsidian_get_links |
Get outgoing links from a note | Yes |
obsidian_get_backlinks |
Get backlinks to a note | Yes |
obsidian_list_tags |
List all tags with counts | Yes |
obsidian_get_tagged_notes |
Get notes by tag | Yes |
Configuration
Required environment variable:
OBSIDIAN_VAULT_PATH- Absolute path to your Obsidian vault
Optional:
TRANSPORT-stdio(default) orhttpPORT/SERVER_PORT- HTTP port (default: 3000)HOST/SERVER_HOST- HTTP host (default: 127.0.0.1)DEBUG- Enable debug logging (true)
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.
- 7d ago First seen · 87 lines · 815 tokens per session scan A 50a3e5b0fb0f
obsidian-mcp-server CLAUDE.md is an instructions file published in the GitHub repository sethdavis512/obsidian-mcp-server (3 stars, last pushed 7mo ago), licensed MIT. It adds 815 tokens to every session, about $0.0041 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 2026-08-31.
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