# lumen — Agent Skill

Precise local semantic code search via MCP. Indexes your codebase with Go AST parsing, embeds with Ollama or LM Studio, and exposes vector search to Claude through an MCP server — no cloud, no npm.

## At a glance

lumen is an Agent Skill by ory in the Coding & Engineering category. In Claude Code it installs with `/plugin install lumen@claude-plugins-official` after adding the anthropics/claude-plugins-official marketplace; other assistants use its SKILL.md instructions as rules. Its source repository has 313 GitHub stars (as of Oct 28, 2026).

## Install

### How to install lumen in Claude Code

1. Add the marketplace

```claude
/plugin marketplace add anthropics/claude-plugins-official
```

2. Install the skill

```claude
/plugin install lumen@claude-plugins-official
```

3. Use it

   These are slash commands for a Claude Code session, not your shell. Claude auto-invokes the skill when your request matches its description — or type its slash command if it exposes one.

### How to install lumen in Claude Desktop

1. Clone the source

```bash
git clone https://github.com/ory/lumen.git
```

2. Add the SKILL.md to your Skills folder

   Settings → Capabilities → Skills → add the folder containing SKILL.md. Claude picks it up automatically.

### How to install lumen in Cursor

1. Clone the source

```bash
git clone https://github.com/ory/lumen.git
```

2. Convert to a Cursor rule

   Create .cursor/rules/lumen.mdc and paste the SKILL.md body. Set `alwaysApply` or a glob so the Agent loads it in context.

### How to install lumen in Codex CLI

1. Clone the source

```bash
git clone https://github.com/ory/lumen.git
```

2. Reference in AGENTS.md

   Add the skill's instructions (or a link) to AGENTS.md at your repo root — Codex reads it on every run.

### How to install lumen in Windsurf

1. Clone the source

```bash
git clone https://github.com/ory/lumen.git
```

2. Add to your rules / context

   Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.

### How to install lumen in Cline

1. Clone the source

```bash
git clone https://github.com/ory/lumen.git
```

2. Add to your rules / context

   Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.

### How to install lumen in VS Code

1. Clone the source

```bash
git clone https://github.com/ory/lumen.git
```

2. Add to your rules / context

   Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.

Source: https://github.com/ory/lumen

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Source: https://mcp-skills-hub.vercel.app/skills/lumen · MCP Skills Hub · data as of 2026-10-28T12:31:05Z