Claude Code Harness plugin for Grok Build

Name: Claude Code Harness
Author: Chachamaru127

Community Claude Code plugin, installs in GrokPluginDevelopment

Claude Code Dedicated Development Harness - Achieving High-Quality Development Through an Autonomous Plan→Work→Review Cycle

How to install Claude Code Harness in Grok Build

grok plugin install Chachamaru127/claude-code-harness --trust

✓ Install-checked in Grok Buildchecked Oct 18, 2026

Review before you trust it. --trust lets this plugin's hooks, MCP servers and scripts run code on your computer. It's a community repo that neither xAI nor GrokStacks has reviewed, so read its code first.

We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Command format: Grok Build's plugin guide

What we checked: on Oct 18, 2026 it installed with grok 1.0.62 and Grok found 15 slash commands, 1 subagent. That's an install check only: we haven't run it in a live Grok session.

What it contains

Subagents (5)

harness:advisor — executor が返した advisor-request.v1 に対して方針だけ返す非実行 advisor
harness:livemsg-gate — セッション間メッセージの主張を裏取りして SEND / HOLD を返す read-only gate
harness:reviewer — sprint-contract と review artifact を基準に verdict を返す read-only reviewer
harness:test-wiring-auditor — 変更差分に対してテスト網が追随しているかを fresh-context で監査する read-only auditor
harness:worker — 実装、preflight 自己点検、検証、commit 準備を 1 タスク単位で進める統合ワーカー

Hooks (1)

hooks — Notification, PostToolUse, PreCompact, PreToolUse, SessionEnd, SessionStart, Stop, SubagentStop, UserPromptSubmit

About this listing

Claude Code Harness is a community plugin on GitHub by Chachamaru127, written as a Claude Code plugin that Grok Build installs. We install-checked it in Grok; we haven't run it in a live session or reviewed its code. When we installed it, Grok found 5 subagents, 1 hook. Its license is MIT. We checked commit c2304c325d44. It's one of 409 listings in the Development category on GrokStacks.

Claude Code Harness FAQ

How do I install Claude Code Harness in Grok Build?

Run grok plugin install Chachamaru127/claude-code-harness --trust. We install-checked this command in Grok Build. We install this repo directly: Grok Build 1.0.62 can't install it through its own marketplace file. Then start a new Grok session, or press r in /plugins, to load it.

Is Claude Code Harness an official Grok Build plugin?

No. Claude Code Harness is a community plugin on GitHub by Chachamaru127, not in xAI's official Grok Build marketplace. We checked that it installs and what Grok loads from it, but haven't run it in a live Grok session or reviewed its code.

What does Claude Code Harness include?

According to what Grok loaded in our install check, Claude Code Harness includes 5 subagents, 1 hook: harness:advisor, harness:livemsg-gate, harness:reviewer, harness:test-wiring-auditor, harness:worker, hooks.

Details

Type: Plugin
Category: Development
Source: Community Claude Code plugin, installs in Grok
License: MIT
Author: Chachamaru127
Version: 5.16.0
Source repo: https://github.com/Chachamaru127/claude-code-harness
Checked commit: c2304c325d44
Checked by GrokStacks: Install-checked in Grok Build on Oct 18, 2026; not run in a live session

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For maintainers: badge and embeds

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Markdown

[![Listed on GrokStacks](https://grokstacks.com/badge.svg)](https://grokstacks.com/p/claude-code-harness/)

HTML

<a href="https://grokstacks.com/p/claude-code-harness/"><img src="https://grokstacks.com/badge.svg" alt="Listed on GrokStacks" width="164" height="28"></a>

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Claude Code HarnessCommunity plugin for Grok Build · 5 subagents, 1 hookClaude Code Dedicated Development Harness - Achieving High-Quality Development Through an Autonomous Plan→Work→Review…View on GrokStacks →

<a href="https://grokstacks.com/p/claude-code-harness/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #2a2e3c;border-radius:12px;background:#0a0b0f;color:#e8eaf0;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#e8eaf0">Claude Code Harness</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#9aa0b1">Community plugin for Grok Build · 5 subagents, 1 hook</span><span style="display:block;margin:0 0 10px;color:#c9cdd8">Claude Code Dedicated Development Harness - Achieving High-Quality Development Through an Autonomous Plan→Work→Review…</span><span style="font-size:12px;font-weight:600;color:#7c9cff">View on GrokStacks →</span></a>

Markdown summary

**[Claude Code Harness on GrokStacks](https://grokstacks.com/p/claude-code-harness/)**: Community plugin for Grok Build with 5 subagents, 1 hook. Install: `grok plugin install Chachamaru127/claude-code-harness --trust`

More on badges, embeds and keeping your listing up to date: GrokStacks for plugin authors.

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