Modo

Modo is an open-source AI-powered desktop IDE built on top of Void (a VS Code fork) that introduces spec-driven development — transforming prompts into structured plans before writing a single line of code. It guides developers through a requirements → design → tasks → code workflow, keeping context persistent across sessions. Licensed under MIT, Modo is community-maintained and freely hackable.

• Spec-Driven Development: Create a spec with Cmd+Shift+S; Modo generates requirements.md, design.md, and tasks.md files in .modo/specs/ and executes tasks one by one.
• Task CodeLens: Inline "▶ Run Task" buttons appear directly in tasks.md, with status indicators (spinner, checkmark) as the agent works through each item.
• Steering Files: Markdown rules in .modo/steering/ are automatically injected into every AI interaction, supporting always, fileMatch, and manual inclusion modes.
• Agent Hooks: JSON configs in .modo/hooks/ automate actions around 10 agent lifecycle events (e.g., fileEdited, promptSubmit, preToolUse), supporting askAgent or runCommand actions.
• Autopilot / Supervised Toggle: A status bar pill switches between fully autonomous agent execution and a supervised mode that pauses for user approval.
• Parallel Chat Sessions: Multiple chat sessions run as tabs, each with its own thread, context, and history, plus a searchable history panel.
• Subagents: Spawn parallel agents for independent subtasks, each with its own thread and tool access.
• Powers: Installable knowledge packages bundling documentation, steering files, and MCP configs for TypeScript, React, Testing, API Design, Docker, and custom URLs.
• Vibe and Spec Modes: Choose free-form exploration (Vibe) or structured spec-driven development (Spec) at session start.
• Multi-Provider LLM Support: Inherited from Void — supports Anthropic, OpenAI, Gemini, Ollama, Mistral, Groq, and OpenRouter out of the box.
• MCP Integration: Full Model Context Protocol support for tool use and external integrations.
• Quick Start: Clone the repo, run npm install (Node 20 required), npm run buildreact, npm run watch, then ./scripts/code.sh to launch.