Show HN: Unspin – live per-step progress for Claude Code's shell commands

Category: devtools

Tags: claude-code, progress-bar, shell, agent-tooling, cli

Score: 7.0/10 (Innovation: 6, Technical: 7, Documentation: 9, Utility: 6)

Unspin is a shell helper and Claude Code plugin that provides live per-step progress bars and ETA for long-running or batched shell commands executed by coding agents. It intercepts command output by writing structured event lines to a runtime file, which is then rendered in the agent's spinner, status line, or a separate terminal. The project is notable for its clean protocol design, cross-shell compatibility (bash 3.2–5.3, zsh), and zero-daemon architecture, making agent execution more transparent.

Target audience: AI coding agent users, backend developers, devops engineers

Repository: https://github.com/nkyriazis/unspin · Shell · MIT · 1 stars

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