Initial seed for an autonomous, self-extending Minecraft player powered by Pi (pi.dev) and Mineflayer. Includes README, AGENTS.md mandate, .env.example, MIT LICENSE, package.json with mineflayer + dotenv, and empty skills/ extensions/ prompts/ dirs for the agent to grow into. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
135 lines
6.9 KiB
Markdown
135 lines
6.9 KiB
Markdown
# pepa-pi-bot
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> An autonomous self-extending Minecraft player, powered by [Pi](https://pi.dev) and the [Mineflayer](https://github.com/PrismarineJS/mineflayer) protocol stack. Built for the [pepa](https://mc.xmatic.team) survival server.
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The bot is **not a finished application**. It is a seed: a Pi agent with an initial mandate and a hand-off to a Minecraft server. From there, the agent is expected to grow its own toolset — writing new skills, fetching extensions, and adapting its behaviour as it plays.
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## Concept
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Most Minecraft AI bots ship as monolithic projects: hard-coded actions, fixed prompts, a single LLM provider. This repo flips that around.
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```
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┌───────────────────────────────────────────────┐
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│ Pi (terminal agent, model-agnostic) │
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│ ├── AGENTS.md ← initial mandate │
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│ ├── skills/ ← grown over time │
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│ └── extensions/ ← TS plugins, also grown │
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└───────────────┬───────────────────────────────┘
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│ spawns / controls
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▼
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┌───────────────────────────────────────────────┐
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│ Mineflayer client │
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│ - joins MC server as a real player │
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│ - chat, movement, inventory, world events │
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└───────────────┬───────────────────────────────┘
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│ TCP 25565
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▼
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┌───────────────────────────────────────────────┐
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│ pepa Minecraft server │
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│ Paper 26.1.2 · cracked · AuthMe · BlueMap │
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└───────────────────────────────────────────────┘
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```
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The Pi agent is the brain. Mineflayer is the body. The bridge between them — the skills, the prompt templates, the supervision loop — is meant to be written **by the agent itself**, starting from a minimal scaffold in this repo.
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## Prerequisites
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| Tool | Why | How to get it |
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|---|---|---|
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| **Pi** ≥ `0.75` | The agent runtime. Reads `AGENTS.md`, loads skills, calls the LLM. | `curl -fsSL https://pi.dev/install.sh \| sh` |
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| **Node.js** ≥ `20` | Required by Pi and by Mineflayer. | `brew install node` / `nvm install 20` |
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| **An LLM credential** | One of: OpenAI API key, Anthropic API key, or an OAuth-authenticated subscription (`/login` inside Pi). ChatGPT Pro / Claude Max work via OAuth on supported providers. | See [Authentication](#authentication) |
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| **A Minecraft account or cracked nick** | The bot joins as a real player. The pepa server runs in cracked mode, so any nickname works. | — |
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| **Network access to the MC server** | Direct TCP to `host:25565`. | — |
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> The bot does **not** need its own Minecraft client install, server access, RCON, or any special server-side plugin. It joins as a vanilla player over the standard protocol.
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## Quickstart
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```bash
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# 1. Clone
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git clone git@github.com:xmatic-squad/pepa-pi-bot.git
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cd pepa-pi-bot
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# 2. Configure credentials
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cp .env.example .env
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$EDITOR .env # fill in MC_HOST, MC_USERNAME, AuthMe password, LLM provider, etc.
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# 3. Install Node deps (mineflayer + dotenv to start)
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npm install
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# 4. Authenticate Pi with your LLM provider
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pi /login # OAuth flow — works with ChatGPT Pro / Claude Max
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# OR
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export OPENAI_API_KEY=sk-...
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# OR
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export ANTHROPIC_API_KEY=sk-ant-...
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# 5. Launch the agent in this directory
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pi
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```
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On first launch Pi loads `AGENTS.md` from the project root. That file is the seed prompt — it tells the agent who it is, what server it should join, and that it is expected to extend itself.
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Sessions persist by default. Use `pi -c` to resume the last conversation.
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## Authentication
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Pi supports **15+ LLM providers** and two credential modes:
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1. **OAuth subscription login** — `pi` then `/login` inside the TUI. Suitable for ChatGPT Plus/Pro, Claude Max, and other subscriptions that ship an OAuth flow. No metered API billing.
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2. **API key environment variables** — `OPENAI_API_KEY`, `ANTHROPIC_API_KEY`, `GOOGLE_API_KEY`, etc. Metered, but no UI.
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You can mix providers via `--provider openai --model gpt-5` at launch. Cheaper models for idle ticks, smarter ones for hard decisions.
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## How the agent extends itself
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Pi has first-class support for three growth surfaces:
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- **`skills/`** — Markdown-defined capabilities Pi can invoke. The agent can `Write` new ones at runtime when it discovers a missing capability.
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- **`extensions/`** — TypeScript modules registering new tools, commands, or UI tweaks. Installed via `pi install npm:<pkg>` / `pi install git:<url>` or written in-tree.
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- **`prompts/`** — Reusable prompt templates. Useful for cron-driven tick prompts ("what should I do next minute?").
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The opening `AGENTS.md` instructs the agent to start by writing a `mineflayer-bridge` extension that can:
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- connect to the configured MC server
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- register with AuthMe
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- emit world events back into the agent loop
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- expose `chat / move / dig / place / equip / attack` as Pi tools
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Everything beyond that — farming, exploration, base-building, player interaction — should emerge from the agent itself.
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## Project layout
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```
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pepa-pi-bot/
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├── README.md ← you are here
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├── AGENTS.md ← seed prompt, loaded by Pi on launch
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├── .env.example ← all required env vars, no secrets
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├── .gitignore
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├── LICENSE ← MIT
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├── package.json ← node deps (mineflayer + dotenv to start)
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├── skills/ ← grown by the agent (markdown skills)
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├── extensions/ ← grown by the agent (typescript extensions)
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├── prompts/ ← reusable prompt templates
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└── docs/
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└── architecture.md ← longer-form design notes
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```
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## Safety boundaries
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The pepa server is a shared survival world. The agent **must not**:
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- be given OP rights on the server
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- destroy player-built structures without explicit human request
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- spam chat
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- exfiltrate the AuthMe password or any other secret into chat / world / web
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These rules are mirrored in `AGENTS.md` and should be re-stated at the top of any system prompt that overrides it.
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## Status
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🌱 **Seedling.** The repo currently ships only the scaffold and the initial mandate. The first real milestone is: agent connects, registers via AuthMe, sends `hello` in chat, writes its first skill (`logout-on-shutdown`). Everything past that emerges from interaction.
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## License
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[MIT](./LICENSE) © [xmatic-squad](https://github.com/xmatic-squad)
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