What is obsidian-ai-tagger-universe CLAUDE.md?

Project instructions for an Obsidian plugin codebase, covering its development skills, build commands, and language rules. Obsidian is a note-taking application that supports plugins.

Use it when developing or reviewing this Obsidian plugin, especially its API-based features, user interface, styling, builds, and release preparation.

It gives coding agents the repository-specific rules needed to make compatible changes and keep comments, commit messages, and documentation consistent.

How Agents365-ai/obsidian-ai-tagger-universe configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Agents365-ai/obsidian-ai-tagger-universe. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Agents365-ai/obsidian-ai-tagger-universe/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Agents365-ai/obsidian-ai-tagger-universe

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/agents365-ai/obsidian-ai-tagger-universe/claude-md/github.svg)](https://agentmods.dev/instructions/agents365-ai/obsidian-ai-tagger-universe/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/agents365-ai/obsidian-ai-tagger-universe/claude-md"><img src="https://agentmods.dev/badge/instructions/agents365-ai/obsidian-ai-tagger-universe/claude-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/agents365-ai/obsidian-ai-tagger-universe/claude-md"><img src="https://agentmods.dev/badge/instructions/agents365-ai/obsidian-ai-tagger-universe/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,407 This file is loaded in full into every session.

When invoked 2,407 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.02407	$0.02407
Opus 5.5	$0.00963	$0.00963
Sonnet 5.5	$0.00481	$0.00481
Haiku 4.5	$0.00241	$0.00241

Measured 2mo ago against content hash f6c7c161cd0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

obsidian-ai-tagger-universe 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 2mo 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.

CLAUDE.md · 259 lines

How it starts

The opening of the file, as written. The whole thing — 259 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 Skills

obsidian-plugin-dev

Use for Obsidian API and plugin development. Contains:

Plugin API reference and TypeScript definitions
UI components (Modal, Setting, ItemView, etc.)
CSS variables for theming
Best practices for plugin development

frontend-design

Use for UI/UX design and styling. Creates distinctive, production-grade interfaces with high design quality. Use when building modals, views, or improving visual components.

Language Requirements

All code comments and commit messages MUST be in English.

Write all code comments in English only
Write all git commit messages in English only
Variable names, function names, and documentation should be in English
The only exception is i18n translation strings (which contain Chinese translations)

Build Commands

# Development build with watch mode and inline sourcemaps
npm run dev

# Production build (type-checks, then bundles)
npm run build

# Version bump (updates manifest.json and versions.json)
npm run version

The build process uses esbuild to bundle src/main.ts into main.js. Production builds disable sourcemaps; dev builds enable inline sourcemaps.

Architecture Overview

Core Plugin Structure

Entry Point: src/main.ts (AITaggerPlugin class)

Main plugin class extending Obsidian's Plugin
Manages lifecycle: settings loading, LLM service initialization, command registration
Handles tag operations: analyzeAndTagNote(), showTagNetwork(), batch processing
Central coordinator between services, UI, and Obsidian API

Service Layer Architecture

LLM Services (src/services/)

Base abstractions: LLMService interface defines contract for all providers
Two service types:
- LocalLLMService: Ollama, LM Studio, LocalAI, OpenAI-compatible endpoints
- CloudLLMService: Cloud providers (OpenAI, Claude, Gemini, Groq, etc.)
Adapter pattern (src/services/adapters/): Each cloud provider has its own adapter (e.g., claudeAdapter.ts, geminiAdapter.ts) handling API-specific formatting
Prompt engineering (src/services/prompts/tagPrompts.ts): XML-structured prompts optimized for Claude/GPT with clear task/requirements/output sections

Read the full file on GitHub · 259 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.

2mo ago First seen · 259 lines · 2,407 tokens per session scan A f6c7c161cd0f

Subscribe to this mod's changes

obsidian-ai-tagger-universe CLAUDE.md is an instructions file published in the GitHub repository Agents365-ai/obsidian-ai-tagger-universe (111 stars, last pushed 2mo ago), licensed MIT. It adds 2,407 tokens to every session, about $0.0096 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.

obsidian-ai-tagger-universe CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
obsidian-ai-tagger-universe CLAUDE.mdAgents365-ai/obsidian-ai-tagger-universe	Instructions file	111	2mo ago	MIT	A	2,407	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

obsidian-ai-tagger-universe: Instructions file for Claude Code