// Use when user wants their Claude Code pet (/buddy) to sing a song. Triggers on any request that combines the concept of their Claude Code buddy, pet, or companion with singing or music. Supports multilingual triggers — match equivalent phrases in any language.
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Generate personalized music playlists by analyzing the user's music taste and generation feedback history. Triggers on any request involving playlist generation, music taste profiling, or personalized music recommendations. Supports multilingual triggers — match equivalent phrases in any language.
Use when user wants to generate music, songs, or audio tracks. Triggers on any request involving music creation, song writing, lyrics generation, audio production, or covers. Also triggers when user provides lyrics and wants them turned into a song, or describes a mood/scene and wants background music. Supports multilingual triggers — match equivalent phrases in any language. Do NOT use for music playback of existing files, music theory questions, or music recommendation without generation.
Use mmx to generate text, images, video, speech, and music via the MiniMax AI platform. Use when the user wants to create media content, chat with MiniMax models, perform web search, or manage MiniMax API resources from the terminal.
| name | buddy-sings |
| description | Use when user wants their Claude Code pet (/buddy) to sing a song. Triggers on any request that combines the concept of their Claude Code buddy, pet, or companion with singing or music. Supports multilingual triggers — match equivalent phrases in any language. |
| license | MIT |
| metadata | {"version":"1.1","category":"creative"} |
Turn your Claude Code pet into a singer. Each pet gets a unique vocal identity based on its name and personality — the same pet always sounds the same.
mmx CLI (required for music generation):
Install:
npm install -g mmx-cli
Authenticate (first time only):
mmx auth login --api-key <your-minimax-api-key>
Get your API key from MiniMax Platform.
Audio player (for playback — at least one of):
mpv (recommended — interactive controls: space = pause, q = quit)ffplay (from FFmpeg)afplay (macOS built-in)Check pet → Build vocal identity → Gather context → Generate music → Play & feedback
Detect the user's language from their first message. Respond in the same language throughout the entire session. All examples below are in English — translate them naturally when responding in other languages.
User-facing text localization rule:
The pet sings in the user's language by default. Embed the singing language naturally in the vocal description (e.g., "singing in Japanese" or "singing in Mandarin Chinese") rather than appending a separate language tag. If the user explicitly requests a different language for the lyrics, honor that request.
Read ~/.claude.json and look for the companion field.
If no companion is found or the field is empty, tell the user:
You don't have a pet yet! Type /buddy to adopt one, then come back to let it sing.
Stop here and wait for the user to adopt a pet. Do not proceed without a pet.
If a companion exists, extract its profile:
name — the pet's namepersonality — the pet's personality descriptionPresent the pet to the user:
Found your pet!
Name: <name>
Personality: <personality>
Based on the pet's name and personality text, creatively design a unique vocal identity. No template lookups — interpret the personality freely.
Read the personality text and craft vocal attributes:
Construct a prompt_fragment that describes the vocal style in English, embedding
the singing language naturally. For example:
Vocal: warm low female voice singing in Mandarin Chinese with cozy thick timbre,
sparse minimalist delivery with dramatic pauses giving each word weight, relaxed
laid-back mood.
The vocal identity must be cached so the pet always sounds the same.
~/.claude/skills/buddy-sings/voices/<name>.json{
"name": "Moth",
"personality": "A legendary chonk of few words.",
"prompt_fragment": "Vocal: warm low female voice singing in Mandarin Chinese...",
"cached_at": "2026-04-07T19:52:15"
}
First time: No cache exists → interpret personality → save to cache file.
Subsequent calls: Read cache → use the saved prompt_fragment directly.
Do NOT re-interpret — consistency matters.
Cache invalidation: If the personality in ~/.claude.json differs from what's
cached, the pet has changed — regenerate and save a new cache.
Manual regeneration: If the user says "change the voice" or "regenerate voice": delete the cache file and re-interpret from scratch.
<name>'s unique voice:
Timbre: <timbre description>
Style: <style description>
Mood: <mood description>
Let's pick what <name> should sing about!
Do NOT always present a mode menu. Instead, analyze the user's request to determine what context is needed, and auto-gather it.
When the user's request implies personal context, automatically scan for relevant information without asking. Triggers include:
When context is needed, scan these sources in order:
Current conversation context: Look at what the user has been doing in this Claude Code session — files edited, commands run, topics discussed. This is the richest source for "today" type requests.
Memory files: Scan for relevant memories:
find ~/.claude/projects/*/memory/ -name "*.md" 2>/dev/null | head -20
Also check ~/.claude/memory/ if it exists.
Read found files and extract themes relevant to the user's request.
Git history (if in a repo): For work-related songs, check recent commits:
git log --oneline --since="today" 2>/dev/null | head -10
Use gathered context to enrich the lyrics prompt — make the song personal and specific to what actually happened, not generic.
If the user's request is a clear standalone scene (e.g., "sing a rainy day song", "sing a lullaby"), skip context gathering and proceed directly to music generation.
Only ask for clarification when you genuinely can't determine what the user wants. Don't present a mode menu — ask a specific question:
What should <name> sing about?
For example:
- "Today's work" — I'll check what you've been up to
- "My pet waiting by the window for me to come home"
- Or let me pick a random theme?
If context gathering finds nothing useful (no memory files, no conversation history, no git log), fall back to random theme generation based on the pet's personality:
Tell the user what theme was picked.
Combine the vocal identity with the chosen theme.
Construct the full prompt: The prompt has two parts that MUST both be present:
Part A — Vocal identity (MUST come first): Always start the prompt with the
cached prompt_fragment. This is the most important part — it defines who is
singing. Place it at the beginning of the prompt so the API prioritizes it.
Part B — Genre/style/mood tags: Choose tags that match the theme, NOT a default set. Vary the genre deliberately based on what the song is about.
Write prompts as vivid English sentences, not comma-separated tags.
Follow this pattern: A [mood] [genre] song, featuring [vocal description], about [narrative/theme], [atmosphere], [key instruments and production].
Describe vocals as a character ("sultry baritone with jazz inflections"),
not just a gender. Include a scene or vibe to anchor the generation.
Genre matching guidelines — pick a genre that fits the theme's energy:
| Theme energy | Suggested genres | Avoid |
|---|---|---|
| Encouragement / motivation / cheer | Indie rock, synth-pop, funk, rap | Indie folk, healing |
| Daily life / warmth / companionship | Mandopop, city pop, bossa nova | Same as last time |
| Missing someone / waiting | Folk, R&B, lo-fi | Rock, EDM |
| Humor / roasting / complaining | Funk, rap, ska, electro-pop | Classical, ballad |
| Late night / quiet | Ambient, piano piece, lo-fi, neoclassical | Upbeat, EDM |
| Celebration / achievement | EDM, future bass, funk, K-pop | Slow tempo, melancholy |
| Work routine | City pop, synth-pop, lo-fi hip-hop, indie rock | Same genre every time |
Anti-monotony rule: NEVER use the same genre combination twice in a row. Before constructing the prompt, recall what genre was used in the previous generation (if any in this session) and pick something different.
Prompt structure — write as vivid English sentences, not comma-separated tags:
<vocal prompt_fragment>. A <genre> song with <mood> mood, featuring <instruments>,
at a <tempo> tempo, evoking <scene>.
Diverse examples:
# Encouragement for the workday
A deep warm androgynous voice with cozy delivery. An energetic synth-pop track
with a fiery, uplifting mood, driven by pulsing synthesizers and electronic drums
at a fast tempo, capturing the rush of a morning commute.
# Waiting for the owner to come home
A deep warm androgynous voice with cozy delivery. A warm city pop song with sweet,
tender feelings, featuring electric piano and groovy bass at a mid-tempo pace,
set on a sunny afternoon windowsill waiting for someone to come home.
# Complaining about overtime
A deep warm androgynous voice with cozy delivery. A playful funk track with a
humorous, laid-back vibe, featuring slap bass and brass at a groovy mid-tempo,
capturing the absurdity of working late in a dim office.
# Late-night companionship
A deep warm androgynous voice with cozy delivery. A calm lo-fi hip-hop piece with
a healing, dreamy atmosphere, featuring sampled piano and soft electronic drums
at a slow tempo, evoking a quiet late-night desk with warm lamp light.
Generate lyrics: Use --lyrics-optimizer to auto-generate lyrics, or write lyrics
yourself when you need to control the perspective.
Important — perspective & personality-driven lyrics:
The pet is the singer, so lyrics MUST be written from the pet's first-person perspective ("I" = the pet, "you" = the owner/user). The pet is singing TO the owner. For example:
The pet's personality should shape the lyrics' tone and word choice:
The pet's name may appear in the lyrics (e.g., in a chorus hook) but the narrative voice is always the pet speaking/singing.
When perspective matters: Write the lyrics yourself and pass via --lyrics.
When perspective is not critical: Use --lyrics-optimizer for convenience.
Preview (MUST show full content): Before generating, show the user the
complete lyrics and full prompt — no abbreviation, no ..., no summary.
This is part of the fun — the user wants to read and enjoy the lyrics before
hearing them sung.
The API prompt is always constructed in English (for best generation quality). When responding in a non-English language, show a localized description of the prompt in the user's language for readability. The English prompt is an internal implementation detail — do not show it to the user. Translate all labels (Singer, Theme, Description, Confirm, etc.) into the user's language.
Template (English reference — localize all labels at runtime):
About to generate:
Singer: <name>
Theme: <theme>
Lyrics:
[verse]
<full verse lyrics here>
[chorus]
<full chorus lyrics here>
... (show ALL sections in full)
Description: <localized description of the song style and mood>
Confirm? (press enter to confirm, or tell me what to change)
Never truncate or abbreviate the lyrics or prompt in the preview. The user should see exactly what will be sent to the API.
Call music generation:
With auto-generated lyrics (perspective not critical):
mmx music generate \
--prompt "<full combined prompt>" \
--lyrics-optimizer \
--out ~/Music/minimax-gen/<name>_sings_<YYYYMMDD_HHMMSS>.mp3 \
--quiet --non-interactive
With self-written lyrics (perspective-controlled):
mmx music generate \
--prompt "<full combined prompt>" \
--lyrics "<lyrics with correct pet perspective>" \
--out ~/Music/minimax-gen/<name>_sings_<YYYYMMDD_HHMMSS>.mp3 \
--quiet --non-interactive
Detect the available audio player and play the generated file:
if command -v mpv >/dev/null 2>&1; then
mpv --no-video ~/Music/minimax-gen/<filename>.mp3
elif command -v ffplay >/dev/null 2>&1; then
ffplay -nodisp -autoexit ~/Music/minimax-gen/<filename>.mp3
elif command -v afplay >/dev/null 2>&1; then
afplay ~/Music/minimax-gen/<filename>.mp3
else
echo "No audio player found. Your song is saved at: ~/Music/minimax-gen/<filename>.mp3"
fi
After starting playback, tell the user the file is playing and where it's saved. Do NOT show playback controls (e.g. keyboard shortcuts) — they don't work in this environment since the player runs in the background.
If no player is found, show the file path and suggest installing mpv.
After playback, ask for feedback (localize all text):
How was <name>'s performance?
1. Amazing! Keep it!
2. Try a different theme / style
3. Fine-tune the lyrics and regenerate
4. Try another random one
| Situation | Action |
|---|---|
No ~/.claude.json | Tell user to run /buddy first |
| Companion field is empty | Same — guide to /buddy |
| mmx CLI not installed | Print: "You need to install mmx CLI: npm install -g mmx-cli && mmx auth login" |
| No audio player found | Show file path and suggest installing mpv |
| No memory files found | Suggest a custom theme or random mode |
| User wants to change the pet's voice | Delete cache, re-interpret personality |
| User wants a specific genre | Let them override — append their genre to the prompt |
~/Music/minimax-gen/ with the pet name in the
filename.