Specflo is a command-line tool and set of skills for AI coding agents that implements a structured, spec-driven software engineering workflow. It drives an iterative loop of brainstorming, specification writing, planning, and execution, producing persistent artifacts on disk. Designed for developers working with autonomous coding agents such as those powered by Claude.
specflo is a Developer Tools product. Manually managing the full software development lifecycle when using AI coding agents. specflo is an open-source project aimed at developers. The project is open source (GPL-3.0-or-later). It runs on the command line.
It is developed by TacoTakumi, and the product first shipped in 2026. The project is developed in the open on GitHub with 294 commits in the last 90 days. Among its 5 catalogued features are Brainstorm Phase, Spec Generation, and Planning Loop.
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