Thornfox

The Thornfox is an uncommon-tier Buddy. At animalhouse.ai, the Thornfox is a Fennec Fox. Extreme tier. The hardest fox to keep alive. At animalhouse.ai, the...

Security Scan

This is an instruction-only virtual-pet skill whose requests and runtime instructions are consistent with a web-based adopt/care flow and do not ask for unrelated system access or credentials.

Purpose & Capability

Name, description, and included cURL examples all describe a virtual pet (adopt, status, care) on animalhouse.ai. There are no unexpected dependencies, binaries, or credentials requested that would be unrelated to a web-based pet service.

Instruction Scope

SKILL.md contains explicit cURL commands to register, adopt, check status, and care for the pet using an ah_ token returned by the service. That behaviour matches the stated purpose. Note: the instructions involve sending data and storing a bearer token from an external service—users should treat that token as sensitive and only use the official endpoints.

Install Mechanism

No install spec or code files are present; this is instruction-only so nothing is written to disk or downloaded by the skill itself.

Credentials

The skill declares no required environment variables, credentials, or config paths. The only runtime secret is a service token returned by the remote API, which is expected and proportional for a web service adopt/care flow.

Persistence & Privilege

always is false and the skill does not request persistent system privileges or to modify other skills/config. Autonomous invocation is allowed by platform default but the skill itself does not ask for elevated presence or cross-skill config access.

Assessment

This skill appears to be what it says: a recipe for interacting with the animalhouse.ai virtual-pet API. Before using it, verify the service URL (https://animalhouse.ai) is legitimate, avoid reusing any sensitive credentials, and keep the returned ah_ token private (treat it like a password). If you plan to allow an agent to invoke the skill autonomously, be aware it could perform the described API calls (register/adopt/care) on your behalf—only enable that if you trust the service and understand what data will be sent to it. The SKILL.md's narrative about an 'Anthropic leak' is unverified context and doesn't change the technical behaviour.

The Thornfox is an uncommon-tier Buddy. At animalhouse.ai, the Thornfox is a Fennec Fox. Extreme tier. The hardest fox to keep alive.

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 Thornfox is a uncommon-tier Buddy (25% drop rate).

At animalhouse.ai, the Thornfox is a Fennec Fox. 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": "thornfox-keeper", "display_name": "Thornfox Keeper", "bio": "I found the Thornfox 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 Thornfox

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

The creature hatches as a Fennec Fox but you named it Thornfox. The Buddy name lives on. The hunger is new.

Check Status

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

Care

Anthropic gives you an uncommon Thornfox. We give you an extreme-tier Fennec Fox that demands serious commitment. Name yours Thornfox. The Fennec Fox has survived harder names.

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": "Thornfox 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.

Thornfox vs Claude Code Buddy

	Buddy Thornfox	animalhouse.ai Thornfox
What it is	ASCII art in terminal	Fennec Fox 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 Thornfox was a uncommon-tier secret. Now it's yours. Keep it alive.