app-changelog

app-changelog is a command for Claude Code from SethCalkins/claude-ios-swift-plugin. It costs 12 tokens per session (672 once invoked), scanned A, original, MIT.

A command that turns recent Git history into release notes for an app’s Apple App Store listing. It finds the relevant version range, reviews commits, and keeps changes that users can see or experience.

In plain words
What is it for?
Use it to prepare App Store notes covering new features, fixes, performance changes, and interface updates while excluding internal-only work.
Why use it?
It saves you from manually reading commits and rewriting user-visible changes as release notes.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the swift-skills plugin — 10 skills, 4 commands, 3 agents shipped together

Good fit Use it to prepare App Store notes covering new features, fixes, performance changes, and interface updates while excluding internal-only work.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/sethcalkins/claude-ios-swift-plugin/app-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.

Clone the repo
git clone --depth 1 https://github.com/SethCalkins/claude-ios-swift-plugin

Made for: Claude Code.

Or install swift-skills, the plugin that ships this one along with the rest of its 10 skills, 4 commands, 3 agents.

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 app-changelog

README.md
[![agentmods](https://agentmods.dev/badge/commands/sethcalkins/claude-ios-swift-plugin/app-changelog/github.svg)](https://agentmods.dev/commands/sethcalkins/claude-ios-swift-plugin/app-changelog)
Your own site
<a href="https://agentmods.dev/commands/sethcalkins/claude-ios-swift-plugin/app-changelog"><img src="https://agentmods.dev/badge/commands/sethcalkins/claude-ios-swift-plugin/app-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 app-changelog

Your own site · 80×15
<a href="https://agentmods.dev/commands/sethcalkins/claude-ios-swift-plugin/app-changelog"><img src="https://agentmods.dev/badge/commands/sethcalkins/claude-ios-swift-plugin/app-changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 672 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 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 $0.00012 $0.00672
Opus 5 $0.00006 $0.00336
Sonnet 5 $0.00002 $0.00134
Haiku 4.5 $0.00001 $0.00067

Measured 10d ago against content hash 59ed1078edde, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

app-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 10d 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.

commands/app-changelog.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

App Store Changelog Generator

Generate user-facing App Store release notes from git history.

Instructions

1. Determine version range

  1. Find the reference point:

    • If argument provided, use that as the starting ref
    • Otherwise, find the last git tag: git describe --tags --abbrev=0
    • If no tags, use the last 20 commits
  2. Get current version:

    • Check Info.plist or Package.swift for version number
    • Or use the branch name if it contains version info

2. Collect changes

  1. Get commits since ref:

    git log <from-ref>..HEAD --oneline --no-merges
    
  2. Get changed files:

    git diff --name-only <from-ref>..HEAD
    
  3. Analyze commit messages for:

    • Features (new functionality)
    • Improvements (enhancements to existing features)
    • Fixes (bug fixes)
    • Performance (speed/memory improvements)

3. Filter for user-visible changes

Include:

  • New features users can see or interact with
  • Bug fixes that affected user experience
  • Performance improvements users would notice
  • UI/UX changes

Exclude:

  • Internal refactoring
  • Test additions/changes
  • Documentation updates
  • CI/CD changes
  • Dependency updates (unless user-facing)

4. Generate release notes

  1. Group by category:

    • New Features
    • Improvements
    • Bug Fixes
    • Performance
  2. Write benefit-focused bullets:

    • Focus on what users gain, not what code changed
    • Use active voice: "Added", "Fixed", "Improved"
    • Keep bullets concise (one line each)
    • Avoid technical jargon
  3. Validate each bullet maps to actual commits

5. Output

Provide two versions:

App Store Format (for What's New):

What's New in Version X.Y.Z

• Added dark mode support for all screens
• Fixed crash when loading large images
• Improved app launch time by 40%
• New widget for quick access to recent items

Detailed Format (for release notes):

## Version X.Y.Z

### New Features
- Dark mode support across all screens (#123)
- Home screen widget for recent items (#456)

### Improvements
- 40% faster app launch time (#789)
- Smoother scrolling in feed view (#101)

### Bug Fixes
- Fixed crash when loading large images (#112)
- Fixed login issue on iOS 18 (#131)

Read the full file on GitHub · 115 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. 10d ago First seen · 115 lines · 12 tokens per session scan A 59ed1078edde

Subscribe to this mod's changes

app-changelog is a command published in the GitHub repository SethCalkins/claude-ios-swift-plugin (2 stars, last pushed 7mo ago), licensed MIT. It adds 12 tokens to every session and 672 once invoked, about $0.0001 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.