Modo is an open-source, MIT-licensed AI IDE forked from Void (itself a VS Code fork) that introduces structured, spec-driven development workflows. Instead of going directly from prompt to code, Modo generates requirements, design docs, and task checklists before writing any code. Key features include: spec files stored as markdown in `.modo/specs/`, Task CodeLens for inline task execution in the editor, Steering Files that inject project rules into every AI interaction, Agent Hooks (JSON configs automating actions around the agent lifecycle), an Autopilot/Supervised toggle, parallel chat sessions, subagents for concurrent subtasks, and installable 'Powers' knowledge packages. Built on top of Void's multi-provider LLM support (Anthropic, OpenAI, Gemini, Ollama, etc.), it adds a full project structure and workflow layer. The author describes it as a learning experiment and invites community contributions.
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