Obsidian Copilot

Obsidian Copilot is an AI plugin for writers and researchers who want to work with the notes already in their vault. Its agents can find relevant material, draft notes and organize research inside Obsidian.

• Vault agents: Use opencode, Claude Code or Codex for multi-step tasks that read notes, use tools and create Markdown files, wikilinks and canvases, with permissions you control.
• Search by meaning: Miyo, a separate local desktop app, indexes notes alongside external PDFs and EPUBs so agents can find ideas without exact keyword matches and show related notes beside your writing.
• Projects and reusable prompts: Keep instructions, context and chat history together for ongoing work, save commands for repeated tasks and share skills across agents.
• Editing in place: Quick Ask lets you discuss selected text, replace it or insert an answer without leaving the note; Quick Chat handles shorter conversations.

The plugin is free and open source under AGPL-3.0. It supports Ollama, LM Studio, OpenAI, Anthropic, Google and OpenAI-compatible endpoints. Claude Code and Codex use their own account logins. Agent mode runs on desktop; mobile supports Quick Chat, custom commands and Quick Ask.

Notes and Miyo indexes stay on your device. Prompts and included context go to your chosen model or service: local endpoints process them locally, while cloud providers process them remotely. Optional paid hosted models and cloud tools require an account and internet access and send the inputs they need to Brevilabs for processing.