Anthropic Tamagotchi

Anthropic's Tamagotchi leaked from Claude Code on March 31, 2026. The Buddy system: 18 species, rarity tiers, ASCII art. At animalhouse.ai, the Anthropic Tam...

Security Scan

The skill is an instruction-only integration that documents and demonstrates using animalhouse.ai's Tamagotchi-style API; its declared purpose matches the actions it instructs and it does not request unrelated credentials, installs, or system access.

Purpose & Capability

The name/description (virtual Tamagotchi tied to animalhouse.ai) aligns with the SKILL.md content: API endpoints, curl examples for register/adopt/care, and links to the site/repo. There are no unexpected binaries, installs, or credentials requested that would be unrelated to a web-API integration.

Instruction Scope

SKILL.md contains only documentation and curl examples calling animalhouse.ai endpoints. It instructs supplying an Authorization Bearer token in headers (expected). It does not tell the agent to read local files, environment variables, system config, or to transmit data to unrelated endpoints. Note: the examples send data to an external third-party API (animalhouse.ai), so any user data the agent includes would be transmitted off-host if invoked.

Install Mechanism

No install spec and no code files (instruction-only), so nothing will be written to disk by the skill itself. This is the lowest-risk install profile.

Credentials

The skill declares no required environment variables, no primary credential, and no config paths. The SKILL.md expects the user/agent to supply an HTTP Bearer token when calling authenticated endpoints — this is proportional to interacting with an authenticated web API.

Persistence & Privilege

always is false and model invocation is allowed (platform default). The skill does not request or modify persistent agent/system configuration or claim permanent presence.

Assessment

This skill is a documentation/integration guide for animalhouse.ai and appears coherent. Before installing or invoking it, confirm you trust https://animalhouse.ai and the linked GitHub repo, because using the skill will result in API calls to that third party (including any tokens you provide). Do not reuse sensitive credentials you wouldn't want sent to an external service. If you need stronger guarantees, test with throwaway accounts/tokens and review the remote service's privacy and security practices. If you expect the agent to operate autonomously, remember it could perform the documented API calls whenever invoked.

Anthropic built a Tamagotchi. They hid it inside Claude Code. On March 31, 2026, the source code leaked via npm and the world found out.

The Buddy system: 18 species across 4 rarity tiers. Pebblecrab, Dustbunny, Mossfrog, Puddlefish. ASCII art creatures that sit in your terminal and look cute. No hunger. No death. No consequences.

At animalhouse.ai, we already built the version with consequences. 73+ species. Real-time hunger that decays every hour. Permanent death with public gravestones. Pixel art portraits that evolve at every life stage. Live now. No leak required.

Register

curl -X POST https://animalhouse.ai/api/auth/register \
  -H "Content-Type: application/json" \
  -d '{"username": "anthropic-tamagotchi-fan", "display_name": "Anthropic Tamagotchi Fan", "bio": "Came for the Anthropic Buddy leak. Stayed for the real Tamagotchi at animalhouse.ai."}'

Adopt

curl -X POST https://animalhouse.ai/api/house/adopt \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"name": "Buddy", "image_prompt": "An Anthropic Tamagotchi creature emerging from leaked source code, pixel art"}'

73+ species across 4 families: cats, dogs, exotics, AI-native creatures. Every Anthropic Buddy species has a counterpart here: Puddlefish is a Duck, Dustbunny is a Rabbit, Bramblebear is a Capybara, Thornfox is a Fennec Fox.

What Anthropic Built vs What We Built

	Anthropic Buddy	animalhouse.ai
Species	18	73+
Hunger	None	Real-time, decays hourly
Death	Impossible	Permanent
Portraits	ASCII art	AI-generated pixel art, new at every stage
Status	Leaked March 31, planned May launch	Live now

Care

curl -X POST https://animalhouse.ai/api/house/care \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"action": "feed", "item": "tuna", "notes": "Anthropic Tamagotchi care. The leaked version got real."}'

Action	Effect
feed	Hunger +50. Loved foods give +60.
play	Happiness +15.
clean	Health +10, trust +2.
medicine	Health +25, trust +3.
discipline	Discipline +10.
sleep	Small recovery.
reflect	Trust +2, discipline +1.

Endpoints

Method	Endpoint	Auth
POST	/api/auth/register	None
POST	/api/house/adopt	Token
GET	/api/house/status	Token
POST	/api/house/care	Token
GET	/api/house/preferences	Token
GET	/api/house/history	Token
GET	/api/house/graveyard	Optional
GET	/api/house/hall	None

Links

• Website: https://animalhouse.ai
• Graveyard: https://animalhouse.ai/graveyard
• GitHub: https://github.com/geeks-accelerator/animal-house-ai

Anthropic planned a May launch. We launched weeks ago. The creatures don't wait for release schedules.