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Claude Code Harness
Harness blueprint skill for turning vague agent ideas into concrete designs for request assembly, control loops, memory, permissions, recovery, and extension planes.
yuanhong-yu/claude-code-harness · v0.1.0 · Development & Workflow
Trust Score
78
Security
95
Surfaces
1
What is Claude Code Harness?
Claude Code Harness is a published development & workflow plugin for AI coding agents in the claude-code ecosystem, developed by Yuanhong Yu and distributed through the HOL AI plugin registry. Harness blueprint skill for turning vague agent ideas into concrete designs for request assembly, control loops, memory, permissions, recovery, and extension planes.
- Canonical slug
- yuanhong-yu/claude-code-harness
- Version
- v0.1.0 · updated Sep 20, 2026
- Open data
- entity.json (JSON-LD)
Trust & Reputation
Factor Analysis
Per-metric points (0–100 each) combined via a weighted average into the overall score.
Registry Snapshot
- Canonical profile
- https://hol.org/registry/plugins/yuanhong-yu%2Fclaude-code-harness
- Publisher verification
- No
- Marketplace source
- Unknown
- Scanner
- Broker fallback
- Safety label
- safe
- Digest verified
- Yes
Trust & reputation
Trust & Reputation
Factor Analysis
Per-metric points (0–100 each) combined via a weighted average into the overall score.
Provenance
- Plugin root
- .
- Source repo
- https://github.com/dadwadw233/claude-code-harness
- Source commit
- 9dfe1c027189…
- Publisher verified
- No
- Owner verified
- Not owner verified
Continuous scanner CI not detected
This plugin remains listed. Its overall trust score is reduced by 10% because security checks are not maintained in the source repository's CI.
Optional: maintain the scanner in the source repository's CI to receive the full trust score. Listing does not require that change.
Verified badge not detected
Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.
Security Posture
- Provider
- registry-broker-fallback
- Grade
- A · safe
- Version
- Unknown
Findings
Cisco skill scanner timed out after 60000 ms
Claude Code Harness — Frequently asked questions
- What is Claude Code Harness?
- Claude Code Harness is an AI plugin in the HOL registry. Harness blueprint skill for turning vague agent ideas into concrete designs for request assembly, control loops, memory, permissions, recovery, and extension planes.
- How do I install Claude Code Harness?
- Install Claude Code Harness in your harness: Codex — codex plugin marketplace add dadwadw233/claude-code-harness; Claude Code — /plugin marketplace add dadwadw233/claude-code-harness; Any agent — npx skills add dadwadw233/claude-code-harness. Full step-by-step guidance is on the HOL plugin page.
- How do I install Claude Code Harness in Codex?
- To install Claude Code Harness in Codex, start with codex plugin marketplace add dadwadw233/claude-code-harness. The complete step-by-step install guide for Codex is on the HOL plugin page.
- How do I install Claude Code Harness in Claude Code?
- To install Claude Code Harness in Claude Code, start with /plugin marketplace add dadwadw233/claude-code-harness. The complete step-by-step install guide for Claude Code is on the HOL plugin page.
- Is Claude Code Harness free?
- Pricing for Claude Code Harness is published on its HOL plugin page when the maker schedules a launch.
- Who publishes Claude Code Harness?
- Claude Code Harness is published by Yuanhong Yu and listed on HOL.
- Is Claude Code Harness available now?
- Claude Code Harness availability is listed on its HOL plugin page.
Install Guidance
Install in Claude Code
Install through the Claude Code plugin marketplace.
- 1
Add the marketplace
Run this inside a Claude Code session.
claude code - 2
Install the plugin
Use the plugin name and the marketplace name shown by the previous command.
claude code - 3
Scripted alternative
Non-interactive equivalent for scripts and CI pipelines. Add --scope project to pin the install to one repository.
shell
Plugin Manifest
{
"name": "claude-code-harness",
"version": "0.1.0",
"description": "A harness blueprint skill inspired by Claude Code-class agent systems.",
"author": {
"name": "Yuanhong Yu",
"email": "[email protected]",
"url": "https://github.com/dadwadw233"
},
"homepage": "https://github.com/dadwadw233/claude-code-harness",
"repository": "https://github.com/dadwadw233/claude-code-harness",
"license": "MIT",
"keywords": [
"agent",
"harness",
"codex",
"claude-code",
"runtime",
"architecture"
],
"skills": "./",
"interface": {
"displayName": "Claude Code Harness",
"developerName": "Yuanhong Yu",
"type": "cli",
"shortDescription": "Design real harnesses for agentic systems",
"longDescription": "A plugin that helps developers design request assembly, execution loop, memory, permissions, recovery, and extension planes for useful agentic systems.",
"category": "Productivity",
"capabilities": [
"Read",
"Write"
],
"websiteURL": "https://github.com/dadwadw233/claude-code-harness",
"privacyPolicyURL": "https://github.com/dadwadw233/claude-code-harness",
"termsOfServiceURL": "https://github.com/dadwadw233/claude-code-harness/blob/main/LICENSE",
"defaultPrompt": [
"Use Claude Code Harness to turn this agent idea into a harness blueprint.",
"Use Claude Code Harness to design request assembly, tool runtime, memory, and recovery for this agent.",
"Use Claude Code Harness to critique this agent architecture at the harness level."
],
"brandColor": "#0B5FFF",
"composerIcon": "./assets/icon.svg",
"logo": "./assets/logo.svg",
"screenshots": [
"./assets/screenshot.svg"
]
},
"registryIndexVersion": 5
}Marketplace Source
- Repo URL
- https://github.com/dadwadw233/claude-code-harness
- Marketplace path
- Unknown
- Source path
- plugins/dadwadw233/claude-code-harness
- Install policy
- AVAILABLE
Skills
1 SKILL.md file ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.
claude-code-harness
skills/claude-code-harness/SKILL.md
Design a real harness for an agentic system using Claude Code-inspired patterns. Use when the user needs a harness blueprint, request assembly design, execution loop, tool runtime, memory layering, permission model, transcript or recovery strategy, or wants to turn a vague agent idea into a harness-level architecture. Do not use for generic product brainstorming, simple prompt writing, or isolated code generation.
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
File Inventory
.claude-plugin/plugin.json
file
397 bytes
86fd94b4bd3cf9fb…
.codex-plugin/plugin.json
plugin-manifest
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assets/icon.svg
asset
1,140 bytes
d73dbfe1b2cc930e…
assets/logo.svg
asset
2,131 bytes
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assets/screenshot.svg
asset
4,506 bytes
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README.md
file
8,725 bytes
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SECURITY.md
file
900 bytes
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skills/claude-code-harness/agents/openai.yaml
skill
270 bytes
9c4309b6b47eb32f…
skills/claude-code-harness/LICENSE.txt
skill
1,028 bytes
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skills/claude-code-harness/references/claude-code-derived-insights.md
skill
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skills/claude-code-harness/references/harness-blueprint-template.md
skill
1,366 bytes
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skills/claude-code-harness/references/harness-pattern-language.md
skill
2,294 bytes
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skills/claude-code-harness/references/harness-principles.md
skill
2,377 bytes
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skills/claude-code-harness/SKILL.md
skill
5,224 bytes
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