changelog

changelog is a skill for Claude Code, Codex from nimadorostkar/Claude-Skills-collection. It costs 40 tokens per session (1,227 once invoked), scanned A, original, MIT.

A guide to writing changelogs and release notes that explain software changes to users. It also covers semantic versioning, a convention for showing whether a release adds features, fixes bugs, or may require changes.

In plain words
What is it for?
Use it to maintain a CHANGELOG file, write release notes, choose a version number, group changes by user impact, and provide migration instructions.
Why use it?
It keeps users from having to reconstruct meaning from commits or pull requests. It highlights breaking changes and explains what users need to do after an update.

Skill for Claude CodeCodex

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

Good fit Use it to maintain a CHANGELOG file, write release notes, choose a version number, group changes by user impact, and provide migration instructions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nimadorostkar/claude-skills-collection/changelog
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 nimadorostkar/Claude-Skills-collection --skill changelog
Clone the repo
git clone --depth 1 https://github.com/nimadorostkar/Claude-Skills-collection

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/nimadorostkar/claude-skills-collection/changelog/github.svg)](https://agentmods.dev/skills/nimadorostkar/claude-skills-collection/changelog)
Your own site
<a href="https://agentmods.dev/skills/nimadorostkar/claude-skills-collection/changelog"><img src="https://agentmods.dev/badge/skills/nimadorostkar/claude-skills-collection/changelog/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/nimadorostkar/claude-skills-collection/changelog"><img src="https://agentmods.dev/badge/skills/nimadorostkar/claude-skills-collection/changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,227 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00040 $0.01227
Opus 5 $0.00020 $0.00613
Sonnet 5 $0.00008 $0.00245
Haiku 4.5 $0.00004 $0.00123

Measured 9d ago against content hash d1e314ddbb42, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, 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 9d 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/writing/changelog/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Changelog

Purpose

Tell users what changed and what they must do about it. A changelog is not a git log; it is a communication with people who have built something on your software.

When to Use

  • Writing release notes.
  • Maintaining a CHANGELOG file.
  • Announcing a breaking change.
  • Deciding a version number.

Capabilities

  • Changelog structure and categorization.
  • Writing for users rather than for contributors.
  • Semantic versioning.
  • Breaking-change communication and migration guidance.

Inputs

  • The commits, pull requests, or issues in the release.
  • Who uses the software and what they have built on it.
  • Whether anything breaks.

Outputs

  • A changelog entry organized by impact.
  • A version number that reflects what changed.
  • Migration instructions for anything that breaks.

Workflow

  1. Group by what it means to the user — Added, changed, deprecated, removed, fixed, security. Not by component, and certainly not by commit.
  2. Lead with the breaking changes — They are what the reader is looking for. Bury them and someone's deployment fails.
  3. Write in terms of the user's experience — "Exports now include line items", not "refactored ExportSerializer to include LineItemMixin".
  4. Version honestly — A breaking change is a major version, however small it is. Renaming a public field is breaking, even if it felt like a typo fix.
  5. Give the migration, not just the warning — "This is removed" is a problem. "This is removed; use X instead, like this:" is a solution.
  6. Skip the noise — Internal refactors, dependency bumps with no behavioral effect, and CI changes do not belong in a user-facing changelog.

Best Practices

  • The reader of a changelog has one question: "will this break my build, and what do I have to change?" Answer it first.
  • A commit log is not a changelog. fix: handle nil case in parser means nothing to a user; "Fixed a crash when parsing an empty configuration file" does.
  • Any change to a public interface — a field name, a default value, an error type, a status code — is breaking. Version it accordingly, whatever it cost you to make.
  • A deprecation needs a timeline and a replacement. "Deprecated" with neither is an announcement that something will break, eventually, with no notice.
  • Link to the pull request or issue for detail. Keep the entry itself short.
  • Date every release. "Unreleased" at the top, dated on release.

Read the full file on GitHub · 124 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. 9d ago First seen · 124 lines · 40 tokens per session scan A d1e314ddbb42

Subscribe to this mod's changes

changelog is a skill published in the GitHub repository nimadorostkar/Claude-Skills-collection (26 stars, last pushed 24d ago), licensed MIT. It adds 40 tokens to every session and 1,227 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 2026-09-03.

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