How do I install the Skill Diff skill?

Run npx skillmds@latest add tomevault-io/skill-diff in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Skill Diff safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Skill Diff?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Skill Diff free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Skill Diff?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Skill Diff

Name: Skill Diff
Author: tomevault-io

Shows side-by-side diffs of skill changes. Generates HTML comparison of before/after for changed SKILL.md files. Use when reviewing skill changes. Use when this capability is needed.

tomevault-io Updated Sep 17, 2026

Web & Frontend

Install

Press C to copy

$ npx skillmds@latest add tomevault-io/skill-diff

Installs into ~/.claude/skills (or .claude/skills inside a project). Restart Claude Code to pick it up.

Download .zip

＋ Add to plugin

README badge

[![SkillMD](https://skillmd.com/badge/tomevault-io/skill-diff.svg)](https://skillmd.com/skills/tomevault-io/skill-diff)

Trust & safety

2 of 3 audits passed

Last audited Sep 19, 2026 · commit a590d8f

Works with: Claude Code Claude.ai OpenAI Codex +

File contents

Generate visual diffs for changed skills, organized by scope.

Scopes

Scope	Comparison
Uncommitted	Working tree vs HEAD
Staged	Index vs HEAD
Branch	HEAD vs main

Usage

Run the script (auto-opens in browser):

node .claude/skills/skill-diff/scripts/skill-diff.js

Do NOT run open manually — the script handles it.

Converted and distributed by TomeVault — claim your Tome and manage your conversions.

tomevault-io/skills-registry/tree/main/brsbl--ottonomous--skill-diff commit a590d8f030

Frequently asked questions

npx skillmds@latest add tomevault-io/skill-diff