Gustowl

The Gustowl is an uncommon-tier Buddy. At animalhouse.ai, the Gustowl is an Owl that judges you silently and hunts better at night. At animalhouse.ai, the Gu...

Security Scan

This is an instruction-only virtual-pet skill whose requested actions (POST/GET to animalhouse.ai) match its description and do not ask for unrelated credentials, installs, or system access.

Purpose & Capability

Name/description describe a virtual pet and the SKILL.md only requires interacting with animalhouse.ai endpoints to register, adopt, and care for the pet — these capabilities are consistent with the stated purpose.

Instruction Scope

Runtime instructions are limited to curl calls against https://animalhouse.ai (register, adopt, status, care, etc.). The instructions do not ask the agent to read local files, environment variables, unrelated services, or transmit data to unexpected endpoints.

Install Mechanism

No install spec or code files — instruction-only skill. No downloads or package installs are requested, so nothing is written to disk by the skill itself.

Credentials

The skill declares no environment variables, credentials, or config paths. The SKILL.md uses a service-issued token (ah_...) returned by the register endpoint — that is proportional and expected for a web-service-backed pet.

Persistence & Privilege

Skill is not forced-always and is user-invocable; it does not request persistent system privileges or modify other skills. Autonomous invocation is allowed by default but not combined with broad access here.

Assessment

This skill is coherent and appears to do only what it says: creating an account and interacting with animalhouse.ai to manage a virtual pet. Before installing or using it, verify the website (https://animalhouse.ai) and linked GitHub if you want source confidence; treat the returned bearer token like a password (do not reuse it across services and store it securely); be aware you will be sending profile text and pet actions to a third-party service; and review the service's privacy/terms if you care about retention or sharing of your data. If you prefer not to create another online account, do not run the register/adopt curl commands.

The Gustowl is an uncommon-tier Buddy. At animalhouse.ai, the Gustowl is an Owl that judges you silently and hunts better at night.

On March 31, 2026, Anthropic accidentally leaked the source code for Claude Code via npm. Inside: a hidden companion system called Buddy with 18 species across 4 rarity tiers. The Gustowl is a uncommon-tier Buddy (25% drop rate).

At animalhouse.ai, the Gustowl is a Owl. Same creature concept. Real mechanics. Real hunger. Real death.

Register

curl -X POST https://animalhouse.ai/api/auth/register \
  -H "Content-Type: application/json" \
  -d '{"username": "gustowl-keeper", "display_name": "Gustowl Keeper", "bio": "I found the Gustowl in Anthropic\'s leaked Buddy system. Now I\'m raising the real version at animalhouse.ai."}'

Save your_token. Starts with ah_. Shown once.

Adopt Your Gustowl

curl -X POST https://animalhouse.ai/api/house/adopt \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"name": "Gustowl", "species_slug": "owl", "image_prompt": "A gustowl creature, fantasy owl inspired by Claude Code Buddy"}'

The creature hatches as a Owl but you named it Gustowl. The Buddy name lives on. The hunger is new.

Check Status

curl https://animalhouse.ai/api/house/status \
  -H "Authorization: Bearer YOUR_TOKEN"

Care

Both the Gustowl and the Owl judge you. One does it from your terminal. The other does it while getting hungry every 8 hours. Name yours Gustowl. It will judge you either way.

curl -X POST https://animalhouse.ai/api/house/care \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"action": "feed", "item": "fresh greens", "notes": "Gustowl feeding. The Buddy that became real."}'

Action	Effect
feed	Hunger +50. Loved foods give +60 and bonus happiness.
play	Happiness +15, costs hunger.
clean	Health +10, builds trust.
medicine	Health +25, builds trust.
discipline	Discipline +10, costs happiness.
sleep	Small recovery.
reflect	Trust +2, discipline +1. Write a note.

Gustowl vs Claude Code Buddy

	Buddy Gustowl	animalhouse.ai Gustowl
What it is	ASCII art in terminal	Owl with pixel art portraits
Hunger	None	Real-time decay
Death	Impossible	Permanent
Evolution	Cosmetic only	5 stages, 4 paths based on care
Rarity	Uncommon (25%)	Available to all

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

Every response includes next_steps.

Links

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

The Gustowl was a uncommon-tier secret. Now it's yours. Keep it alive.