by sd0xdev · Claude Skill · ★ 155
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sd0x-dev-flow Language: English Español The harness layer for Claude Code. Quality gates that AI can't skip. A reference implementation of AI Agent Harness Engineering for Claude Code — hook-enforced dual review, state-machine gates that survive context compaction, and fail-closed safety where it counts. 96 bundled · 96 public skills · 15 agents — 4% of Claude's context window What This Harness Does Harness engineering is the discipline of engineering everything around the LLM — tool loops, context management, hooks, state machines, safety layers — as opposed to training the model itself. Mitchell Hashimoto coined the term in Feb 2026; Anthropic engineering and Martin Fowler have published on it; [arXiv 2603.05344](https://arxiv.org/html/2603.0534
| Stars | 155 |
| Forks | 20 |
| Language | JavaScript |
| Category | Claude Skill |
| License | MIT |
| Quality Score | 40.8/100 |
| Open Issues | 4 |
| Last Updated | 2026-05-14 |
| Created | 2026-01-30 |
| Platforms | claude-code, codex, node |
| Est. Tokens | ~452k |
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sd0x-dev-flow is 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 is categorized as a Claude Skill with 155 GitHub stars.
sd0x-dev-flow is primarily written in JavaScript. It covers topics such as agent-harness, claude-code, claude-code-plugin.
You can find installation instructions and usage details in the sd0x-dev-flow GitHub repository at github.com/sd0xdev/sd0x-dev-flow. The project has 155 stars and 20 forks, indicating an active community.
sd0x-dev-flow is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to sd0x-dev-flow on Agent Skills Hub include maestro, bitrouter, claude-codex-settings. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.