Claude Code horizon shield Prompt/ap2_cart_fairness
How to: Claude Code horizon shield ap2_cart_fairness
Add horizon shield to Claude Code
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Run this in your project directory.
claude mcp add --transport http horizon-shield https://mcp.horizonshield.dev/mcp-
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Restart your session so the server is picked up.
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ap2_cart_fairness is surfaced as a slash command — type / and it is in the list. Unlike a tool, you invoke it deliberately — Claude Code will not call it for you.
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If it does not appear, check that horizon shield is connected and that you are looking at its prompts rather than its tools.
Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs
Same prompt, other clients
Read from the server itself, by connecting to it and calling prompts/list on 24 September 2026.
A listing does not declare its prompts, so asking is the only way to know them, and this
is what the server actually offers rather than what its listing claims. Names only are
stored; connect the server for each prompt's arguments.