Note Copilot

Note: This plugin is vibe coded.

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Note Copilot

An Obsidian sidebar AI assistant that integrates with your notes, attachments, and PDFs for Q&A, summarization, translation, and organization.

Introduction

Note Copilot aims not to be a standalone chat tool, but to embed LLM capabilities directly into your Obsidian workflow.

It is suitable for:

• Asking questions about current notes or PDFs.
• Attaching Markdown / TXT / PDF context to the model.
• Quickly switching between multiple models.
• Saving responses back to your notes.
• Using shortcut prompts.
• Persistent chat history per file.
• Support for both API Key and Codex Auth.

Features

• Sidebar chat panel in Obsidian.
• Automatically includes context from current notes and attachments.
• Supports Markdown / TXT / PDF files.
• Native PDF input for OpenAI, Anthropic, and Gemini.
• Custom Shortcut Prompts, manageable in settings.
• Multi-model configuration and quick switching.
• Built-in presets for major models.
• Codex support via local codex login.
• Chat history saved by file.
• Direct "Save to note" functionality.
• Automatic creation of inbox notes in inbox/ for standalone PDFs.

Installation

Place the plugin in:

.obsidian/plugins/note-copilot

At minimum, you need:

• manifest.json
• main.js
• styles.css

For local development:

npm install
npm run build

Quick Start

1. Enable the plugin in Obsidian.
2. Open the chat panel via the sidebar icon or command palette.
3. Configure at least one model in settings.
4. Open a note or PDF.
5. Enter your question or use a Shortcut Prompt.

Model Configuration

Supported API Types

• OpenAI-compatible chat completions
• Anthropic native messages API
• Gemini native API
• Codex responses API

PDF Handling

• OpenAI, Anthropic, and Gemini support native PDF input.
• Other providers fallback to extracting text from the PDF as context.
• PDF text extraction depends on PDF.js in the environment and provider performance.

Built-in Presets

• OpenAI
• Anthropic
• Google Gemini
• DeepSeek
• OpenRouter
• Groq
• Moonshot
• SiliconFlow
• Ollama
• Codex

Configuration Options per Model

• Provider / Model Name
• Auth Mode
• API URL
• API Key
• Test button

Authentication Modes

API Key

For most standard model providers like OpenAI, Anthropic, Gemini, DeepSeek, OpenRouter, Groq, Moonshot, SiliconFlow, etc.

Codex Auth

Uses local Codex login credentials from:

~/.codex/auth.json

Recommended Codex config:

• Model: gpt-5.4
• Auth Mode: Codex Auth
• API URL: https://chatgpt.com/backend-api/codex/responses

Ideal for reusing local Codex login status without manual API keys.

Using Codex

1. Run:

   codex login
   

2. Add a new model in plugin settings.
3. Set Auth Mode to Codex Auth.
4. Set model name (e.g., gpt-5.4).
5. Click Test to verify connectivity.

Shortcut Prompts

Shortcut Prompts appear above the input box and can be managed in settings. Each entry includes a button name and prompt content.

Saving Responses

Assistant responses support:

• Copy
• Save

For regular notes, content is appended to the original note. For PDFs:

• The plugin first tries to find an associated Markdown note.
• If not found, a new note is created under inbox/.

New notes automatically include source, Date, base, Category, aliases, and default tags.

Chat History

History is saved per file. You can:

• Start a new session.
• View current file history.
• Switch between or delete old sessions.

Data Files

The plugin saves data locally in its directory:

• data.json: Plugin settings.
• llm-history.json: Chat history.

Note: Deleting these files will reset settings or clear history.

Model Testing

Each model configuration has a Test button:

• API Key mode sends a minimal test request.
• Codex Auth mode checks local login status before testing the model.

Known Limitations

• Codex Auth is primarily for desktop environments.
• Error formats vary by provider.
• PDF extraction quality depends on environment and provider capabilities.
• Quotas and rate limits are determined by the upstream provider.

FAQ

429 Error

Usually means rate limiting, insufficient quota, or lack of model permissions.

Codex Errors

Ensure codex login was successful and ~/.codex/auth.json exists.

Development

Main source files:

• src/main.ts
• src/ui/chat-view.ts
• src/api/llm.ts
• styles.css

Build command:

npm run build

Credits

Special thanks to llm-for-zotero and its developers for providing the base template and inspiration for this vibe coding project.

License

MIT