AutoMode: free Claude Code mod that auto-picks model and effort per prompt

A developer released AutoMode, a free, MIT-licensed mod for Claude Code that selects the model and reasoning effort for each prompt. Two small Haiku judges first estimate task difficulty, then route simple questions to cheaper models and riskier work such as auth or migrations to Opus. The tool also offers a multi-agent workflow for larger jobs, with subagents handling discovery, planning, building, verification and review. In the author's five mixed-session benchmark, AutoMode cost about 51% less than Claude Code on Opus while all tasks still passed. The savings were smallest on long coding sessions without intervening questions, where it runs mostly on Sonnet.
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