# Code Lens

> Use this tool when you need to analyze and understand codebase complexities, identify performance bottlenecks, and optimize development workflows. Code Lens provides in-depth code analysis through its Gemini-powered MCP server, solving problems related to code maintenance, debugging, and improvement. It takes in code repositories as input and outputs actionable insights and recommendations for enhanced code quality and efficiency.

Canonical page: https://skillsregistry.net/skills/io-github-j0hanz-code-lens  
JSON: https://api.skillsregistry.net/v1/skills/io-github-j0hanz-code-lens

## Description

Gemini-powered MCP server for code analysis.

## Trust

- **Trust score (0–1):** 0.99
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 0.10.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-28

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.j0hanz%2Fcode-lens)
- **Repository:** <https://github.com/j0hanz/code-lens>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "io-github-j0hanz-code-lens"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/io-github-j0hanz-code-lens` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/io-github-j0hanz-code-lens/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt