Copilot for Obsidian V4

Copilot V4 starts with Agent Chat, where opencode, Claude Code, or Codex can read your vault, use tools, and complete multi-step work with your approval. Quick Ask, Copilot Commands, and Quick Chat remain available for smaller jobs and mobile use.

Start here

1. Install Copilot from Obsidian’s Community Plugins.
2. Open Settings → Copilot → Basic → Agents. Follow Getting Started with Copilot V4 to download managed opencode, auto-detect Claude Code, or connect Codex through codex-acp.
3. Run Open Copilot Agent Chat Window. A ready default agent opens automatically; if Select your agent appears, choose an Installed agent and select Start chat.

For most people, opencode is the best starting point because Copilot can install and manage it for you. Claude Code and Codex use their existing command-line accounts. Windows users can also follow Windows setup for Agent Chat.

Agent Chat

• Agent Chat explains agents, models, permissions, sessions, and safe use.
• Choose an agent for opencode, Claude Code, or Codex.
• Ask multiple agents to research or review the same question in parallel.
• Share Skills across agents so one reusable workflow works in opencode, Claude Code, and Codex.
• Projects give ongoing work its own instructions, context, and chat history.
• Context and Mentions add notes, selections, folders, URLs, and other agents to a request.
• Instructions for Agent Chat and Quick Chat and AGENTS.md examples set durable guidance for your vault and projects.

Everyday tools

• Copilot Commands and Quick Ask reuse prompts or work with selected text without leaving the editor.
• Quick Chat handles lightweight conversations and is the main chat view on mobile, where Agent Chat is unavailable.

Models, plans, and Miyo

• Model Sources and BYOK covers Copilot-hosted models, BYOK for opencode and Quick Chat, and local endpoints.
• Models, Effort, and Permissions explains model selection, defaults, approval behavior, and reasoning effort.
• Miyo: Local-First Search and AI Ownership brings more powerful local-first search and AI ownership to your knowledge.
• Copilot Plans, Privacy, and Self-Hosting compares free and paid access, hosted features, privacy, and self-hosting.

Settings

Copilot Settings walks through every tab in the order it appears in Obsidian: Basic, BYOK, Miyo, Skills, Command, Self-Host, and Advanced.

Help

• Troubleshooting and FAQ fixes common Agent Chat, model, search, and Quick Ask problems.