changelog-generator

changelog-generator is a skill for Claude Code, Codex from myths-labs/muse. It costs 48 tokens per session (666 once invoked), scanned A, a copy of changelog-generator, MIT.

A tool for turning git commit history into release notes written for users. It groups changes such as features, fixes, improvements, and breaking changes while filtering out internal work.

In plain words
What is it for?
Use it to create release notes between versions or dates, summarize product updates, prepare app-store notes, and maintain a changelog page.
Why use it?
It removes the need to manually translate technical commit messages into a clear changelog for customers or teammates.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create release notes between versions or dates, summarize product updates, prepare app-store notes, and maintain a changelog page.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/myths-labs/muse/changelog-generator
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 myths-labs/muse --skill changelog-generator
Clone the repo
git clone --depth 1 https://github.com/myths-labs/muse

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 changelog-generator

README.md
[![agentmods](https://agentmods.dev/badge/skills/myths-labs/muse/changelog-generator/github.svg)](https://agentmods.dev/skills/myths-labs/muse/changelog-generator)
Your own site
<a href="https://agentmods.dev/skills/myths-labs/muse/changelog-generator"><img src="https://agentmods.dev/badge/skills/myths-labs/muse/changelog-generator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for changelog-generator

Your own site · 80×15
<a href="https://agentmods.dev/skills/myths-labs/muse/changelog-generator"><img src="https://agentmods.dev/badge/skills/myths-labs/muse/changelog-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 666 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 97% copy Near-identical to another mod 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 $0.00048 $0.00666
Opus 5 $0.00024 $0.00333
Sonnet 5 $0.00010 $0.00133
Haiku 4.5 $0.00005 $0.00067

Measured 12d ago against content hash 0fdde1fc7ed0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

changelog-generator 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 12d 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.

Origin

This is a copy

97% identical to changelog-generator — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/toolkit/changelog-generator/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Changelog Generator

This skill transforms technical git commits into polished, user-friendly changelogs that your customers and users will actually understand and appreciate.

When to Use This Skill

  • Preparing release notes for a new version
  • Creating weekly or monthly product update summaries
  • Documenting changes for customers
  • Writing changelog entries for app store submissions
  • Generating update notifications
  • Creating internal release documentation
  • Maintaining a public changelog/product updates page

What This Skill Does

  1. Scans Git History: Analyzes commits from a specific time period or between versions
  2. Categorizes Changes: Groups commits into logical categories (features, improvements, bug fixes, breaking changes, security)
  3. Translates Technical → User-Friendly: Converts developer commits into customer language
  4. Formats Professionally: Creates clean, structured changelog entries
  5. Filters Noise: Excludes internal commits (refactoring, tests, etc.)
  6. Follows Best Practices: Applies changelog guidelines and your brand voice

How to Use

Basic Usage

From your project repository:

Create a changelog from commits since last release
Generate changelog for all commits from the past week
Create release notes for version 2.5.0

With Specific Date Range

Create a changelog for all commits between March 1 and March 15

With Custom Guidelines

Create a changelog for commits since v2.4.0, using my changelog 
guidelines from CHANGELOG_STYLE.md

Example

User: "Create a changelog for commits from the past 7 days"

Output:

# Updates - Week of March 10, 2024

## ✨ New Features

- **Team Workspaces**: Create separate workspaces for different 
  projects. Invite team members and keep everything organized.

- **Keyboard Shortcuts**: Press ? to see all available shortcuts. 
  Navigate faster without touching your mouse.

## 🔧 Improvements

- **Faster Sync**: Files now sync 2x faster across devices
- **Better Search**: Search now includes file contents, not just titles

## 🐛 Fixes

- Fixed issue where large images wouldn't upload
- Resolved timezone confusion in scheduled posts
- Corrected notification badge count

Read the full file on GitHub · 105 lines

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. 12d ago First seen · 105 lines · 48 tokens per session scan A 0fdde1fc7ed0

Subscribe to this mod's changes

changelog-generator is a skill published in the GitHub repository myths-labs/muse (32 stars, last pushed 5d ago), licensed MIT. It adds 48 tokens to every session and 666 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to changelog-generator, differing in 1 line, and is treated as a copy.

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