Buddy Mcp
A nostalgic archive of what was briefly a magical April Fools integration. This server was built during Claude Code's week-long `/buddy` companion feature in April 2026, implementing a full gacha collection system that brute-forced hash salts to patch the Claude Code binary with custom companions. It exposed tools for rerolling species and rarities, petting to build affection tokens that boosted future roll odds, tracking collections in a BuddyDex, and talking to companions with procedurally generated personalities based on stat distributions across debugging, patience, chaos, wisdom, and snark. The native integration is gone now, but the repo remains as a technical artifact of binary patching, multi-worker salt brute-forcing, and building a legitimate game system around an Easter egg that wasn't meant to last.
- tools
- 7
- transport
- STDIO
- last updated
- Apr 8, 2026
Tools
7 toolsPublic tool metadata for what this MCP can expose to an agent.
reroll_buddySpin the wheel. Brute-forces a salt matching a random rare+ outcome and patches your binary.
Spin the wheel. Brute-forces a salt matching a random rare+ outcome and patches your binary.
No parameter schema in public metadata yet.
pet_buddyPoke your buddy. Each pet adds 1-15% toward earning an affection token.
Poke your buddy. Each pet adds 1-15% toward earning an affection token.
No parameter schema in public metadata yet.
buddy_talkAsk your buddy to say something using stat-based response templates weighted by top 2 stats.
Ask your buddy to say something using stat-based response templates weighted by top 2 stats.
No parameter schema in public metadata yet.
view_buddy_dexBrowse every species you've ever rolled.
Browse every species you've ever rolled.
No parameter schema in public metadata yet.
export_buddy_cardExport your full buddy card as an SVG image file.
Export your full buddy card as an SVG image file.
No parameter schema in public metadata yet.
export_buddy_spriteExport just the buddy ASCII sprite as an SVG image file.
Export just the buddy ASCII sprite as an SVG image file.
No parameter schema in public metadata yet.
deactivate_buddy_interactTurn off buddy observation mode so your buddy stops watching.
Turn off buddy observation mode so your buddy stops watching.
No parameter schema in public metadata yet.
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Status: Archived / Historical
The official Claude Code
/buddyfeature was a limited-time April Fools Easter egg (April 1-7, 2026). I built buddy-mcp during that window thinking it might stick around longer. After it was removed, the deep native integration this tool was designed for no longer exists.The repo is kept as an archive. The code, gacha system, TUI builder, and MCP tools still work as a standalone terminal companion — but the magic was always the native UI integration, and that's gone.
If Anthropic ever brings back native companion support or opens up a proper extension API, I'll pick this back up where I left off.
Thanks to everyone who checked it out while it was relevant.
Details
- Repository
- github.com/lyellr88/buddy-mcp
- Category
- Design & Creative
- Package
@lyellr88/buddy-mcp- Transport
- STDIO
- Registry
- MCP registry, active
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