Sd0x Harness plugin
The harness layer for Claude Code — a reference implementation of harness engineering with hook-enforced dual review, state-machine gates that survive context compaction, and fail-closed safety where it counts. Quality gates that AI can't skip.
- Source
- Community
- Author
- sd0xdev
- GitHub stars
- 194
- License
- MIT
- Last pushed
- Oct 8, 2026
Facts are read from the plugin's GitHub repository. Anthropic does not review community plugins added from a repository, so check the source before you install. Plugin security
About this plugin
The harness layer for Claude Code — a reference implementation of harness engineering with hook-enforced dual review, state-machine gates that survive context compaction, and fail-closed safety where it counts. Quality gates that AI can't skip.
How to install the Sd0x Harness plugin
This is a community plugin for Claude Code. Run these commands in a Claude Code session.
Add the marketplace
/plugin marketplace add sd0xdev/sd0x-harnessInstall the plugin
/plugin install sd0x-dev-flow@sd0xdev-marketplace
In Claude Cowork
Open Customize, then Plugins, then Add marketplace, and enter sd0xdev/sd0x-harness. Install Sd0x Harness from the list that appears.
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