mezotv

Agentcraft — Development skill for Claude Code

Development community

Prompt coding agents (Capy, Hoplite, Claude Code) from inside Minecraft.

How to install Agentcraft

This entry records only its repository, not the path inside it, so there is no exact command to give. Open mezotv/agentcraft and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Agentcraft does

Prompt coding agents (Capy, Hoplite, Claude Code) from inside Minecraft. Paper plugin.

Alternatives in Development

  • Lazycodex — The one and only agent harness for complex codebases 3.3k ★
  • Cavemem — Frozen — cross-agent persistent memory for coding assistants 674 ★
  • Katmer Code — Claude Code inside Obsidian — academic research skills, inline diff editing, MCP support 353 ★

README

AgentCraft

A Paper plugin that lets you prompt cloud coding agents from inside Minecraft. It works with [Capy](https://capy.ai) and [Hoplite](https://hoplite.sh), and each agent can run on either one.

  • Summon an agent: run /agent spawn Claude Opus 5.5, or rename any mob with a name tag to a model name (Claude Opus 5.5, GPT-6.1 Sol, or an alias like claude or chatgpt). It turns into a player-shaped mannequin wearing that model's skin.
  • Every agent has a handle, shown under its name: @claude, @claude2, @gpt, and so on. Rename one with /agent handle while looking at it.
  • Prompt it:
    • Right-click it holding a Book & Quill.
    • Type @claude2 fix the tests in chat.
    • Use /agent ask for the agent you're looking at.
  • Vague mentions: @opus or @claude with no exact handle match goes to the only matching agent nearby, or the one you're looking at. Otherwise you get a clickable "Which one?" list.
  • Live replies: the plugin streams each thread from its backend. The speech bubble shows thinking... with the tool being run, types the reply out as it's written, and shows each message of a multi-message run.
  • Full reply book: when the run ends, every message lands in your inventory as a signed book. If you're offline, it's waiting for you when you join.
  • New chat: right-click with a plain Book, or use /agent new. Renaming an agent to another model keeps the chat and switches the model.
  • Status: right-click with an empty hand, or use /agent status. It shows the backend, the exact model ID sent, and whether it bills your Claude plan.
  • Switch backends: /agent backend lists Capy and Hoplite for the agent you're looking at, and /agent backend hoplite moves it. The next prompt starts a new chat there.

Backends

Capy Hoplite
Key CAPY_API_KEY (capy.ai → Settings → API) HOPLITE_API_KEY (hop_…, Settings → Workspace → API k