amazingsyp

amazingsyp / harness-editor

Public

Single-page HTML tool for editing Claude Code .claude/agents and skills .md files

16
10
100% credibility
Found May 12, 2026 at 16 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
HTML
AI Summary

A single-page browser tool for visually viewing, editing, and managing Markdown files for AI agents and skills in Claude Code projects, with all data processed locally on your device.

How It Works

1
👀 Discover the editor

You hear about a handy tool for easily editing your AI agent and skill files from a project folder.

2
🌐 Open in your browser

Click the ready-to-use link and launch it right in Chrome or Edge for the best experience.

3
📁 Pick your project folder

Choose the folder holding your special AI files, and see them all organized in a tree on the left.

4
✏️ Start editing a file

Click any file to open it, tweak names and descriptions in simple forms, and edit the content with previews.

5
🔍 Search and refine across files

Quickly search everything, make bulk changes, or visually edit tables and text like in a word processor.

6
💾 Save your work

Hit save for one file or all changes at once, knowing everything stays safely on your own computer.

🎉 Polished and ready

Your AI agents and skills are now perfectly tuned and easy to use in your projects.

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Star Growth

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AI-Generated Review

What is harness-editor?

Harness-editor is a single-page HTML app for visually editing Claude Code's .claude/agents and .claude/skills Markdown files in your browser—no install, no server. Pick a project folder once (via Chrome or Edge's File System Access API), and get a tree view, frontmatter forms for name/description/model tweaks, split Markdown editor with live preview, and WYSIWYG mode for tables/headings. It's a github single page app example that keeps all data local, perfect for refining agent configs without clunky text editors.

Why is it gaining traction?

It stands out as a single page html application tailored for Claude Code's YAML-fronted MD files, with multi-file search/replace (regex support), description scoring, and bulk saves—features general editors lack. The hook is instant setup: click a GitHub Pages link or download the HTML file, and you're editing with shortcuts like Cmd+S for save or Cmd+Shift+S for all changes. As a single page html template free on GitHub, it's dead simple for quick sessions, beating VS Code extensions for this niche.

Who should use this?

AI prompt engineers and Claude Code devs maintaining .claude folders in projects. Solo hackers tweaking agent descriptions or skill triggers without full IDE overhead. Teams iterating on multi-agent setups who want WYSIWYG Markdown tweaks and analysis without leaving the browser.

Verdict

Grab it if you're deep in Claude Code—its focused features deliver real workflow wins despite 16 stars and 1.0% credibility score signaling early-stage maturity. Low test coverage and browser limits (Safari fallback to single-file mode) mean it's not production-ready yet, but forkable Apache 2.0 makes it a solid single page portfolio github starter.

(198 words)

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