HeartMula

HeartMula is a skill for Claude Code, Codex from agentic-in/elephant-agent. It costs 35 tokens per session (1,733 once invoked), scanned A, original, no licence file.

Setup and usage guidance for HeartMuLa, an open-source music-generation model family that creates complete songs from lyrics and descriptive tags. It supports multiple languages.

In plain words
What is it for?
Use it to install and run HeartMuLa, generate songs from lyrics and tags, and create multilingual music.
Why use it?
It removes much of the setup work needed to run the model and gives you a defined way to provide lyrics and musical direction.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to install and run HeartMuLa, generate songs from lyrics and tags, and create multilingual music.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentic-in/elephant-agent/heartmula
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add agentic-in/elephant-agent --skill heartmula
Clone the repo
git clone --depth 1 https://github.com/agentic-in/elephant-agent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for HeartMula

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentic-in/elephant-agent/heartmula.svg)](https://agentmods.dev/skills/agentic-in/elephant-agent/heartmula)
Your own site
<a href="https://agentmods.dev/skills/agentic-in/elephant-agent/heartmula"><img src="https://agentmods.dev/badge/skills/agentic-in/elephant-agent/heartmula.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,733 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00035 $0.01733
Opus 5 $0.00017 $0.00866
Sonnet 5 $0.00007 $0.00347
Haiku 4.5 $0.00003 $0.00173

Measured 7d ago against content hash e301df2e5113, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

HeartMula scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/skills/builtin_packages/media/heartmula/SKILL.md · 170 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 170 lines · 35 tokens per session scan A e301df2e5113

Subscribe to this mod's changes

HeartMula is a skill published in the GitHub repository agentic-in/elephant-agent (582 stars, last pushed 11d ago), with no licence file. It adds 35 tokens to every session and 1,733 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

weknora-shared

Use when driving a WeKnora RAG server through the weknora CLI as an agent — authenticating, managing knowledge bases / documents / sessions / agents, running search or chat, or interpreting the CLI's JSON envelopes and exit codes. Read this before any other weknora- skill.

Tencent/WeKnora · 68 tokens

weknora-rag-search

Use when retrieving from or asking questions against a WeKnora knowledge base via the weknora CLI — and especially when unsure whether to use chat, session ask, or search chunks for a given goal.

Tencent/WeKnora · 54 tokens

image-generation

Generate images and iteratively edit saved image artifacts.

MemTensor/memmy-agent · 13 tokens

memmachine-memory

Use when an agent or model needs durable project, user, or session context from MemMachine, needs to save information to MemMachine memory, has requests involving mem-cli, memmachine, or memmachineclient, has insufficient conversation context, or is tempted to search local files for prior context that should come from…

MemMachine/MemMachine · 96 tokens

browserwing-admin

Manage and operate BrowserWing — an intelligent browser automation platform. Install dependencies, configure LLM, create/manage/execute automation scripts, use AI-driven exploration to generate scripts, browse the script marketplace, and troubleshoot issues.

MemTensor/MemOS · 47 tokens

unified-llm-api

Call model APIs through @prismshadow/agenthub — streaming text generation, image generation, speech synthesis, embeddings and the supported-model registry with one client.

Prism-Shadow/penguin-harness · 39 tokens