# How to Install Humanizer from the README.md: 3 Methods Explained > Install Humanizer from README.md using Skills CLI Claude Code marketplace or manual file copy. Get started quickly with blader/humanizer today. - Repository: [Siqi Chen/humanizer](https://github.com/blader/humanizer) - Tags: how-to-guide - Published: 2026-09-11 --- **You can install Humanizer using the Skills CLI (`npx skills add blader/humanizer`), the Claude Code marketplace (`/plugin install humanizer@humanizer`), or by manually copying the [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md) file into your agent's skill directory.** Humanizer is an open-source AI skill distributed by **blader/humanizer** that rewrites AI-generated prose into human-like text. Since the entire package consists of a single Markdown file with embedded YAML metadata, you do not need to compile anything to install humanizer—you simply need to place the skill file where your agent can access it. ## What Is Humanizer? Humanizer lives entirely in **[`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md)** at the repository root. This file contains both the system prompt and metadata (including `metadata.version: "3.0.0"`) that drives the rewriting behavior. Because it is a plain-text Markdown skill, no runtime dependencies or build steps are required; the agent reads the instructions directly and exposes the `/humanizer` endpoint. ## Prerequisites Before you install humanizer, ensure you have one of the following: - Node.js and npm (for the Skills CLI method) - Claude Code 2.1.142 or later (for the marketplace method) - Access to the agent's skill directory (for manual installation) ## Method 1: Install Humanizer Using the Skills CLI The Skills CLI is the fastest way to install humanizer for global or project-local use. ### Global Installation To make humanizer available across all your projects: ```bash npx skills add blader/humanizer --global ``` ### Project-Local Installation To install humanizer only in the current repository: ```bash npx skills add blader/humanizer ``` ### Agent-Specific Installation To target a specific agent (replace `` with the agent name): ```bash npx skills add blader/humanizer --agent ``` Or target all agents with `--agent '*'`. ## Method 2: Install Humanizer via Claude Code Marketplace For Claude Code users, the plugin method registers the skill through the marketplace interface. First, add the skill from the marketplace: ``` /plugin marketplace add blader/humanizer ``` Then install it by name: ``` /plugin install humanizer@humanizer ``` After installation, the skill is reachable at the `/humanizer:humanizer` endpoint according to the [`.claude-plugin/plugin.json`](https://github.com/blader/humanizer/blob/main/.claude-plugin/plugin.json) manifest. ## Method 3: Manual Installation by Copying SKILL.md This universal method works for any agent capable of loading Markdown skills, including Claude Desktop. 1. Download or clone the repository: ```bash git clone https://github.com/blader/humanizer.git ``` 2. Copy [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md) into your agent's skill folder (e.g., `~/.claude/skills/` for Claude Desktop). This approach bypasses package managers entirely and relies on the `metadata.version` field in the YAML front-matter for version tracking. ## How the Installation Works When you install humanizer via the Skills CLI, the tool places [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md) under `skills/humanizer/` in either the global skill store or the current project directory. The agent loads this file at runtime and exposes the `/humanizer` command. The Claude marketplace install references the [`.claude-plugin/plugin.json`](https://github.com/blader/humanizer/blob/main/.claude-plugin/plugin.json) manifest, which points back to [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md) and synchronizes version information with [`agents/openai.yaml`](https://github.com/blader/humanizer/blob/main/agents/openai.yaml). The [`scripts/validate-package.py`](https://github.com/blader/humanizer/blob/main/scripts/validate-package.py) script ensures consistency across these packaging files during development. Because the skill is pure text, no compilation occurs; the agent simply parses the Markdown and uses the embedded instructions to rewrite AI-generated content. ## Summary - **Skills CLI**: Use `npx skills add blader/humanizer --global` for system-wide access or omit `--global` for project-only installation. - **Claude Code Marketplace**: Run `/plugin install humanizer@humanizer` after adding from the marketplace. - **Manual Copy**: Place [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md) directly into your agent's skill directory for universal compatibility. - Humanizer requires no build step because it is a Markdown-based skill with YAML front-matter. ## Frequently Asked Questions ### Do I need to compile Humanizer before installing it? No. Humanizer is distributed as a plain-text Markdown skill in [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md). It contains no compiled code, so installation only requires copying the file or registering it with your agent's plugin system. ### Where does the Skills CLI put the Humanizer files? The CLI installs [`SKILL.md`](https://github.com/blader/humanizer/blob/main/SKILL.md) into a `skills/humanizer/` directory either in your global skill store (with `--global`) or within the current project. The agent loads the skill from this location at runtime. ### Can I install Humanizer for a specific AI agent only? Yes. When using the Skills CLI, append `--agent ` to the install command to restrict the skill to a specific agent. You can also use `--agent '*'` to target all agents simultaneously. ### What is the minimum Claude Code version required for the marketplace install? Claude Code version 2.1.142 or later is required to install Humanizer via the marketplace plugin method, as specified in the repository's README.