How to install Junior Hex in Claude Code
To install Junior Hex in Claude Code, run "claude mcp add junior-hex -- npx -y @sentry/junior-hex" in your terminal, then check it with "claude mcp list". It takes about a minute.
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Run the install command
Open a terminal in your project and run:
claude mcp add junior-hex -- npx -y @sentry/junior-hex - 2
Choose where it applies (optional)
Add --scope user to use it in every project, or --scope project to share it with your team through a .mcp.json file.
claude mcp add --scope user junior-hex -- npx -y @sentry/junior-hex - 3
Check that it is connected
List your servers, or type /mcp inside a Claude Code session to see its status and tools.
claude mcp list
MCP servers run with your permissions. If Junior Hex needs an API key, add it under env in the config. Check its README.
Install Junior Hex in another app
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Questions
Does Junior Hex work in Claude Code?
Yes. Claude Code supports mcp servers (local and remote), skills and plugins, and Junior Hex installs with the steps above.
Junior Hex does not show up in Claude Code. What now?
Restart Claude Code fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.
Is Junior Hex safe?
It scores 83 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
