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mh

v1.1.173

A Claude Code harness that composes mattpocock-skills instead of duplicating it. Nine computational deny/ask gates (irrecoverable commands, subagent git guard, subagent spawn guard, task-complete separation, test integrity, config-write guard, secret-content scan, codex-setup guard, routine-trigger guard) plus a SubagentStop verdict-check gate, a 4 KB METHODOLOGY injected at SessionStart, and memory-lint for the auto-memory store.

Claude Code

By wasikarnLicense: MIT3 GitHub starsUpdated last week

Directory evidence

Runtimes
Claude Code
Parsed components
0 skill or MCP entries
Source updated
Oct 3, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install mh for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install mh@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/wasikarn/matt-harness

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

mh/
└── .claude-plugin/plugin.json

Plugin manifests1

.claude-plugin/plugin.json
{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "mh",
  "displayName": "Matt Harness",
  "version": "1.1.173",
  "description": "A Claude Code harness that composes mattpocock-skills instead of duplicating it. Nine computational deny/ask gates (irrecoverable commands, subagent git guard, subagent spawn guard, task-complete separation, test integrity, config-write guard, secret-content scan, codex-setup guard, routine-trigger guard) plus a SubagentStop verdict-check gate, a 4 KB METHODOLOGY injected at SessionStart, and memory-lint for the auto-memory store.",
  "author": {
    "name": "wasikarn"
  },
  "license": "MIT",
  "homepage": "https://github.com/wasikarn/matt-harness",
  "repository": "https://github.com/wasikarn/matt-harness",
  "defaultEnabled": false,
  "skills": [
    "./skills/meta/",
    "./skills/review/",
    "./skills/workflow/ideate/",
    "./skills/workflow/idea-audit/",
    "./skills/workflow/post-mortem/",
    "./skills/design/tech-humanize/"
  ],
  "keywords": [
    "harness",
    "agents",
    "skills",
    "workflow",
    "governance",
    "doctrine",
    "hooks",
    "ship",
    "research"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[mh on Agent Plugins Marketplace](https://pluginsmp.com/plugins/mh)