# sd0xdev/sd0x-harness

<https://repo.masters-masters.com/en/repos/sd0xdev/sd0x-harness>

[Home](https://repo.masters-masters.com/en) › [sd0xdev](https://repo.masters-masters.com/en/owners/sd0xdev) › [sd0x-harness](https://repo.masters-masters.com/en/repos/sd0xdev/sd0x-harness)

sd0xdev/sd0x-harness has 194 stars on GitHub. Its RepoMasters card: Prototype tier. The harness layer for Claude Code — a reference implementation of harness…

| Field | Value |
| --- | --- |
| Owner | [sd0xdev](https://repo.masters-masters.com/en/owners/sd0xdev) |
| Stars | 194 |
| Forks | 28 |
| Language | [JavaScript](https://repo.masters-masters.com/en/languages/javascript) |
| License | MIT |
| Created | 2026 |
| Topics | claude-code, codex, skills, agent-harness, claude-code-plugin, harness-engineering |
| Tier | [Prototype (100 to 249 ★)](https://repo.masters-masters.com/en/ranks/rush) |
| View on GitHub | [sd0xdev/sd0x-harness](https://github.com/sd0xdev/sd0x-harness) |

## Repository

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.

The tier for repos with 100 to 249 ★. Published odds per card pulled: 70%. Rarity: Common.

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Data: GitHub · Illustration drawn by RepoMasters from the repo’s ID and its language color.