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Plasma AI·Jul 21, 2026·v1.0.0·open source

Fractal

Fractal is an open-source framework for building hierarchical, recursive agent loops that manage large-scale, multi-step autonomous work. By organizing agents into a tree of isolated git worktrees, each with its own budget, lifecycle, and memory, Fractal enables complex tasks like large-scale refactors or research campaigns to proceed reliably and independently.

AI AgentsAutonomous EngineeringSoftware DevelopmentOpen Source
overview

Fractal is an open-source framework for building hierarchical, recursive agent loops that manage large-scale, multi-step autonomous work. By organizing agents into a tree of isolated git worktrees, each with its own budget, lifecycle, and memory, Fractal enables complex tasks like large-scale refactors or research campaigns to proceed reliably and independently.

key features
  • 01Hierarchical recursive agent loops with branching capabilities
  • 02Isolated git worktrees and persistent memory for every agent node
  • 03Configurable safety boundaries (cost, time, iteration, and depth limits)
  • 04Interactive terminal UI (TUI) for monitoring the tree and individual node performance
  • 05Seamless integration with existing agent harnesses like Claude Code and Codex
  • 06Recursive self-organization allowing work to scale dynamically to fit the task
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