changelog-generator

changelog-generator is a skill for Claude Code, Codex from heyAyushh/stacc. It costs 48 tokens per session (694 once invoked), scanned A, a copy of changelog-generator, MIT.

A tool that turns Git commit history into clear release notes for users. Git is a system for tracking changes to code over time.

In plain words
What is it for?
Creating release notes, product changelogs, update summaries, app-store descriptions, and internal change documentation.
Why use it?
It removes the manual work of translating developer-focused commit messages into organised, customer-friendly updates.

Skill for Claude CodeCodex

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

Good fit Creating release notes, product changelogs, update summaries, app-store descriptions, and internal change documentation.

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Install with agentmods
npx agentmods add skills/heyayushh/stacc/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 heyAyushh/stacc --skill changelog-generator
Clone the repo
git clone --depth 1 https://github.com/heyAyushh/stacc

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/heyayushh/stacc/changelog-generator/github.svg)](https://agentmods.dev/skills/heyayushh/stacc/changelog-generator)
Your own site
<a href="https://agentmods.dev/skills/heyayushh/stacc/changelog-generator"><img src="https://agentmods.dev/badge/skills/heyayushh/stacc/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/heyayushh/stacc/changelog-generator"><img src="https://agentmods.dev/badge/skills/heyayushh/stacc/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 694 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 94% 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 $0.00694
Opus 5 $0.00024 $0.00347
Sonnet 5 $0.00010 $0.00139
Haiku 4.5 $0.00005 $0.00069

Measured 8d ago against content hash 441636be6787, 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 8d 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

94% identical to changelog-generator — 4 lines 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.

configs/skills/changelog-generator/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 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 · 106 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. 8d ago First seen · 106 lines · 48 tokens per session scan A 441636be6787

Subscribe to this mod's changes

changelog-generator is a skill published in the GitHub repository heyAyushh/stacc (3 stars, last pushed 2mo ago), licensed MIT. It adds 48 tokens to every session and 694 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to changelog-generator, differing in 4 lines, and is treated as a copy.