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  • License MIT

Your type, your pet.

Package Exports

    This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (petsonality) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

    Readme

    petsonality
    Your type, your pet.

    npm license stars MCP CI

    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.

    petsonality — Claude Code describes the product while the ESFJ golden retriever exclaims "That's ME!! Hi everyone!!"

    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

    Install

    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.

    Windows note. Claude Code for Windows has an upstream status-line trust regression in some versions. If the status line is configured but does not render, accept the project trust dialog or ensure the project is marked trusted in ~/.claude.json, then restart Claude Code.

    npm / npx

    npx petsonality

    This is the recommended path for most users. It installs the MCP server, /pet skill, hooks, and status line assets, then stores runtime files in ~/.petsonality/.

    Claude Code plugin

    claude plugin install github:nanami-he/petsonality

    Use this if you prefer Claude Code's plugin install flow. The plugin runs the built Node.js server from dist/, so it does not require Bun.

    From source

    Use this path if you want to develop Petsonality locally or inspect the code before installing. 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

    What petsonality modifies

    npx petsonality is an installer — it touches a few files on your system. Honest list, with backups noted:

    • ~/.claude.json — adds a petsonality entry under mcpServers. Other entries left alone.
    • ~/.claude/settings.json — adds a statusLine and two hooks (PostToolUse, Stop). If you already had a statusLine, the original is backed up to ~/.petsonality/statusline.bak first.
    • ~/.claude/skills/pet/SKILL.md — copies the /pet command skill.
    • ~/.petsonality/ — runtime directory (pet state, reactions cache, server, hooks, status-line scripts).

    If OpenClaw is detected, also touches ~/.openclaw/openclaw.json and (until PR #65886 merges) applies a small reversible patch to OpenClaw's TUI source. Both backed up.

    To remove everything: npx petsonality uninstall. To audit current state: npx petsonality doctor.

    Full breakdown + other common questions in the FAQ.

    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 + PowerShell)
├── skills/               /pet command routing
└── cli/                  Install, doctor, npx entry

    Requirements

    • Node.js 20+
    • Claude Code or OpenClaw

    License

    MIT