changelog

changelog is a skill for Claude Code from demodev-lab/claude-code-plugin-demokit. It costs 45 tokens per session (468 once invoked), scanned A, original, MIT.

A command that creates a CHANGELOG, a document listing notable software changes, from Git commit history. It groups commits using common categories such as features, fixes, refactoring, documentation, tests, and other maintenance.

In plain words
What is it for?
Use it to generate changelog text for the latest release or a chosen commit range, such as everything since a tag or within a time window.
Why use it?
It turns commit history into release-oriented notes without requiring you to write the list manually.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the demokit plugin — 34 skills, 19 commands, 15 agents, 10 hooks shipped together

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.

agentmods
npx agentmods add skills/demodev-lab/claude-code-plugin-demokit/changelog
Any agent
npx skills add demodev-lab/claude-code-plugin-demokit --skill changelog
Clone the repo
git clone --depth 1 https://github.com/demodev-lab/claude-code-plugin-demokit

Made for: Claude Code.

Or install demokit, the plugin that ships this one along with the rest of its 34 skills, 19 commands, 15 agents, 10 hooks.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/demodev-lab/claude-code-plugin-demokit/changelog.svg)](https://agentmods.dev/skills/demodev-lab/claude-code-plugin-demokit/changelog)
Your own site
<a href="https://agentmods.dev/skills/demodev-lab/claude-code-plugin-demokit/changelog"><img src="https://agentmods.dev/badge/skills/demodev-lab/claude-code-plugin-demokit/changelog.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 468 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00045 $0.00468
Opus 5 $0.00023 $0.00234
Sonnet 5 $0.00009 $0.00094
Haiku 4.5 $0.00005 $0.00047

Measured 5d ago against content hash 9269a18517dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

changelog 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 5d 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.

skills/changelog/SKILL.md · 62 lines

What it actually says

/changelog - 변경 로그 생성

help

인자가 help이면 아래 도움말만 출력하고 실행을 중단한다:

/changelog — Git 기반 CHANGELOG 생성

사용법:
  /changelog [range]

파라미터:
  range  커밋 범위 (선택)
         tag..HEAD, v1.0.0..v2.0.0, --since="1 week ago"

예시:
  /changelog                    — 최근 릴리즈 이후 변경사항
  /changelog v1.0.0..HEAD       — v1.0.0 이후 변경사항
  /changelog --since="1 week"   — 최근 1주 변경사항

관련 명령:
  /commit   — 커밋 생성
  /pr       — PR 생성

실행 절차

  1. Git 이력 수집:

    • git log 으로 커밋 이력 조회
    • range 미지정 시 가장 최근 태그 이후 커밋
    • 태그 없으면 최근 20개 커밋
  2. 커밋 분류 (Conventional Commits 기준):

    prefix 카테고리
    feat 새 기능
    fix 버그 수정
    refactor 리팩토링
    docs 문서
    test 테스트
    chore 기타
  3. CHANGELOG 생성:

    ## [Unreleased] - 2025-xx-xx
    
    ### 새 기능
    - 사용자 인증 기능 추가 (#12)
    
    ### 버그 수정
    - 주문 금액 계산 오류 수정 (#15)
    
    ### 리팩토링
    - UserService 쿼리 최적화
    
  4. 출력: 마크다운 형식으로 출력 (파일 생성은 사용자 확인 후)

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 62 lines · 45 tokens per session scan A 9269a18517dc

Subscribe to this mod's changes

changelog is a skill published in the GitHub repository demodev-lab/claude-code-plugin-demokit (2 stars, last pushed 6mo ago), licensed MIT. It adds 45 tokens to every session and 468 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 2026-08-31.