No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
by sd0xdev · Claude Skill · ★ 190
Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h
🔒 Is sd0x-harness safe to install? View the security audit →
sd0x-dev-flow Language: English Español The harness layer for Claude Code. Let the model choose the path. Keep "done" verifiable. v4 gives Claude discretion inside a closed, test-pinned anchor set; hooks are digest-bound reminders that survive compaction, and Codex reviews independently. Full control plane on Claude Code. Skills-only distribution for Codex CLI and other compatible agents. 99 bundled · 99 public skills · 15 agents — 4% of Claude's context window Quick Start One command auto-detects framework, package manager, database, entrypoints, and scripts. Installs a subset of rules and hooks; the full plugin bundles 16 rules + 6 hooks. Use to only configure CLAUDE.md (skip rules/hooks). Then, inside Codex CLI, generate t
| Stars | 190 |
| Forks | 26 |
| Language | JavaScript |
| Category | Claude Skill |
| License | MIT |
| Quality Score | 69.0813162037958/100 |
| Open Issues | 6 |
| Last Updated | 2026-09-26 |
| Created | 2026-01-30 |
| Platforms | claude-code, codex, node |
| Est. Tokens | ~21k |
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sd0x-harness 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 190 GitHub stars.
sd0x-harness 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-harness GitHub repository at github.com/sd0xdev/sd0x-harness. The project has 190 stars and 26 forks, indicating an active community.
sd0x-harness is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to sd0x-harness on Agent Skills Hub include bitrouter, maestro, antigravity-skills. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.
Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.
The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.
Sources & who's responsible: