What is macos-auto-update?

A guide for adding Sparkle, an open-source framework for updating macOS apps distributed outside the Mac App Store. It covers package setup, update configuration, signing keys, and update controls.

Use it to add automatic updates, an appcast feed, a Check for Updates control, or Sparkle integration to a native macOS app.

It provides the pieces needed for an app to check for and install newer versions without making users handle every update manually.

How phun333/pi-infobar configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to phun333/pi-infobar. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/phun333/pi-infobar/main/.agents/skills/macos-auto-update/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/phun333/pi-infobar

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/phun333/pi-infobar/macos-auto-update/github.svg)](https://agentmods.dev/skills/phun333/pi-infobar/macos-auto-update)

Your own site

<a href="https://agentmods.dev/skills/phun333/pi-infobar/macos-auto-update"><img src="https://agentmods.dev/badge/skills/phun333/pi-infobar/macos-auto-update/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/phun333/pi-infobar/macos-auto-update"><img src="https://agentmods.dev/badge/skills/phun333/pi-infobar/macos-auto-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 126 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,769 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 warn 7 Sept 2026

SkillSpector: 6 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Rogue Agent · line 9
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 22
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 57
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 59
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 87
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 159
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00126	$0.01769
Opus 5.5	$0.00050	$0.00708
Sonnet 5.5	$0.00025	$0.00354
Haiku 4.5	$0.00013	$0.00177

Measured 2mo ago against content hash 375b29ad2fe7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

macos-auto-update 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 2mo 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

Copies of this mod

1 near-identical copy found in the catalogue:

macos-auto-update — 100% identical, 0 lines differ

.agents/skills/macos-auto-update/SKILL.md · 202 lines

How it starts

The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sparkle Auto-Update for macOS Apps

This skill adds Sparkle auto-update support to a native macOS app. Sparkle is the standard open-source framework for macOS app updates outside the Mac App Store.

Overview

The implementation has 4 parts:

SPM dependency -- add the Sparkle package to the Xcode project
UpdaterManager.swift -- a singleton that wraps SPUStandardUpdaterController
Info.plist keys -- SUFeedURL and SUPublicEDKey
UI integration -- "Check for Updates" button in settings/menu bar

Step 1: Add Sparkle via SPM

In Xcode: File > Add Package Dependencies > enter:

https://github.com/sparkle-project/Sparkle

Use the "Up to Next Major Version" rule with 2.0.0. Add the Sparkle framework to your app target.

Or add it to Package.swift if your project uses one:

.package(url: "https://github.com/sparkle-project/Sparkle", from: "2.0.0")

Step 2: Create UpdaterManager.swift

Copy references/UpdaterManager.swift into your project. This is a singleton that:

Creates SPUStandardUpdaterController early (before applicationDidFinishLaunching returns)
Publishes canCheckForUpdates for UI binding
Exposes automaticallyChecksForUpdates toggle
Skips all update logic in DEBUG builds (so you don't get update prompts during development)
For menu-bar-only apps: temporarily switches to .regular activation policy before showing the update window

The key design decisions in this file:

startingUpdater: false in the initializer, then calling start() explicitly in applicationDidFinishLaunching. This gives you control over timing.
DEBUG guards on start() and checkForUpdates(). Sparkle should never run in debug builds -- it would try to update your debug app with a release build.
ObservableObject with @Published (not @Observable) because we need the Combine publisher(for:) bridge from Sparkle's KVO.

Step 3: Configure Info.plist

Read the full file on GitHub · 202 lines

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.

references/UpdaterManager.swift 1.7 KB

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.

2mo ago First seen · 202 lines · 126 tokens per session scan A 375b29ad2fe7

Subscribe to this mod's changes

macos-auto-update is a skill published in the GitHub repository phun333/pi-infobar (97 stars, last pushed 4mo ago), licensed MIT. It adds 126 tokens to every session and 1,769 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-08-30.

DevOps and cloud ai-agents analytics-dashboard developer-tools macos menu-bar menubar-app

macos-auto-update next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
macos-auto-updatephun333/pi-infobar	Skill	97	4mo ago	MIT	A	126	Claude Code, Codex
app-store-reviewjacklandrin/OnlySwitch	Skill	6.0k	yesterday	MIT	A	76	Claude Code, Codex
swift-concurrency-projacklandrin/OnlySwitch	Skill	6.0k	yesterday	MIT	A	35	Codex
swift-testing-projacklandrin/OnlySwitch	Skill	6.0k	yesterday	MIT	A	34	Codex
onlyswitch-deeplinkjacklandrin/OnlySwitch	Skill	6.0k	yesterday	MIT	A	85	Claude Code, Codex
maintainer-barOpenCoven/coven	Skill	75	yesterday	MIT	A	52	Claude Code, Codex
cai-todaycai-layer/cai	Skill	59	3d ago	MIT	A	98	Claude Code, Codex

pi-infobar: Skill for Claude Code