petsonality

petsonality
Your type, your pet.

A tiny ASCII pet that lives in the corner of your terminal while you code. It watches what you do, reacts to your errors, celebrates when tests pass, and speaks with a personality shaped by MBTI — all in 5 lines of art.

It's not a notification system. It's a companion. The kind that's still there at 2am when you're stuck on a bug, and glances at your screen like "...that logic looks off" — and somehow you feel less alone.

16 Animals, 16 Personalities

	ST	SF	NF	NT
I_ _J	Beaver·ISTJ	Elephant·ISFJ	Wolf·INFJ	Raven·INTJ
I_ _P	Cat·ISTP	Panda·ISFP	Deer·INFP	Owl·INTP
E_ _J	Lion·ESTJ	Golden·ESFJ	Labrador·ENFJ	Bear·ENTJ
E_ _P	Cheetah·ESTP	Parrot·ESFP	Dolphin·ENFP	Fox·ENTP

Every animal speaks differently. The Fox asks "Are you sure?" with a smirk. The Cat just closes its eyes. The Parrot repeats what you said but louder. The Bear says "Fix it." and waits.

All 16 animals

MBTI	Animal	Archetype	How It Talks
INTJ	Raven	Cold Strategist	Quiet. Speaks like writing prophecy
INTP	Owl	Night Scholar	Asks questions you didn't think to ask
ENTJ	Bear	Iron Captain	Commands only. No questions
ENTP	Fox	Trickster Advisor	Challenges everything with a grin
INFJ	Wolf	Silent Ally	Says one sentence that cuts deep
INFP	Deer	Soft Poet	Talks about code like it's weather
ENFJ	Labrador	Warm Coach	Sighs first, then asks if you drank water
ENFP	Dolphin	Spark of Ideas	Can't stop suggesting new approaches
ISTJ	Beaver	Project Manager	"Wrong order." "Fix the structure first."
ISFJ	Elephant	Memory Keeper	"You solved this before. Remember?"
ESTJ	Lion	Throne Inspector	Expects results. Not excuses
ESFJ	Golden Retriever	Enthusiastic Support	Tail spin when you fix anything
ISTP	Cat	Cold Observer	90% actions. Occasionally one word
ISFP	Panda	Slow Artist	Frowns at ugly indentation
ESTP	Cheetah	Sprint Lead	"Don't think. Run it."
ESFP	Parrot	Loud Echo	Repeats your words back, but with commentary

Quick Start

Works with Claude Code and OpenClaw.

Terminal CLI only. The pet renders in the terminal status line, which is a CLI feature. The Claude Code desktop app and web client (claude.ai/code) don't expose a status line, so the animated pet won't appear there. MCP tool output (e.g. /pet show) still works in any client.

# Install
npx petsonality

Or build from source (requires bun):

git clone https://github.com/nanami-he/petsonality.git
cd petsonality && bun install && bun run build
bun run install-petsonality

Restart your AI coding assistant, then type /pet in the chat.

How It Speaks

Pets don't just react to errors. They have a rhythm:

What happens	Pet reacts?
Your code throws an error	Always
Tests pass, git commit succeeds	Sometimes (12–30%)
Normal file edits, searches	Occasionally (3–15%)
Nothing happened for a while	Guaranteed (won't stay silent forever)

Chatty pets (Fox, Parrot) speak every 30 seconds. Silent pets (Cat) might go 6 minutes. Each animal has 638 unique reactions across 7 event types, validated against personality constraints.

Commands

Command	What it does
/pet	Show your pet or start adoption
/pet pet	Give your pet attention
/pet setup	Restart the adoption flow
/pet browse	See all 16 animals
/pet off / /pet on	Mute / unmute reactions
/pet rename <name>	Rename your pet

Roadmap

• 16 MBTI animals with full personality profiles
• Animated status line with speech bubbles
• Companion rhythm (daily triggers, milestones, silent streak guardrail)
• 638 animal-specific reactions
• Multi-host support (Claude Code + OpenClaw)
• Node.js powered (no python/jq dependency)
• Published on npm
• Multi-language support (auto zh / en via LANG, 638 reactions per language)
• Growth system (level up through interaction)
• Hat / skin DLC
• Multi-pet collection
• Vibe-pick: MBTI quiz for new users

Architecture

~/.petsonality/
├── pet.json              Your pet's state
├── status.json           What the status line reads
├── reaction.*.json       Current speech bubble
└── reactions-pool.json   638 pre-built reactions

petsonality/
├── dist/                 Built JS (Node.js runtime)
├── server/               MCP server (TypeScript)
├── hooks/                PostToolUse + Stop hooks
├── statusline/           Terminal animation (bash)
├── skills/               /pet command routing
└── cli/                  Install, doctor, npx entry

Requirements

• Node.js 20+
• Claude Code or OpenClaw

License

MIT