Agent skill

Notarize Mac

by OutThisLife in OutThisLife/brooklyn-skills

Build and verify a signed, notarized macOS app or DMG using the project's existing notarization automation.

MITAuto-check passed

Install Notarize Mac

skills CLI
$ npx skills add OutThisLife/brooklyn-skills --skill notarize-mac -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install OutThisLife/brooklyn-skills notarize-mac --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/OutThisLife/brooklyn-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/notarize-mac .claude/skills/notarize-mac && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
notarize-mac
GitHub stars
199
Token cost
~295 tokens
SKILL.md length
131 words
Files
1
Skills in repo
22
Repo updated
First seen
Licence
MIT

At a glance

Build and verify a signed, notarized macOS app or DMG using the project's existing notarization automation.

  • Works in 6 steps: Confirm the checkout and branch. Default… → Locate the existing notarization/release… → Run the script from the environment it… → …
  • The user asks to notarize a Mac build
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Produce a release DMG

What it does

Notarize Mac is an agent skill from OutThisLife/brooklyn-skills. Build and verify a signed, notarized macOS app or DMG using the project's existing notarization automation. Use when the user asks to notarize a Mac build, produce a release DMG, or verify Gatekeeper.

Its SKILL.md is about 300 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with macOS. The repository describes itself as: Skills that drive best-in-class engineering. The licence is MIT.

When your agent uses it

  • The user asks to notarize a Mac build
  • Produce a release DMG
  • Verify Gatekeeper

Example prompts

  • “/notarize-mac”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Confirm the checkout and branch. Default to a clean, current default branch.
  2. Locate the existing notarization/release script (e.g. a
  3. Run the script from the environment it expects.
  4. Preserve its signing identity, App Store Connect key handling, artifact
  5. Verify the resulting artifact with the script's checks or spctl.
  6. Report the artifact path, size, notarization result, and Gatekeeper result.

What it can do on your machine

Read from SKILL.md and the folder at commit 8a97904. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Notarize Mac loads about 295 tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 131 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~53
When it runs · the whole SKILL.md, loaded when a task matches
~295

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from OutThisLife/brooklyn-skills at commit 8a97904, republished under its MIT licence (© OutThisLife). 131 words, ~295 tokens.

Download SKILL.mdSave it as .claude/skills/notarize-mac/SKILL.md (or your agent's skills folder).
name
notarize-mac
description
Build and verify a signed, notarized macOS app or DMG using the project's existing notarization automation. Use when the user asks to notarize a Mac build, produce a release DMG, or verify Gatekeeper.

Notarize macOS Build

Use the project's existing notarization automation. Don't invent a new signing pipeline or expose credentials.

Procedure

  1. Confirm the checkout and branch. Default to a clean, current default branch.
  2. Locate the existing notarization/release script (e.g. a notarize-*-installer.sh or the release script the project already ships):
    • use a path the user supplies first;
    • otherwise search the repo and nearby release/notary checkouts;
    • if none exists, ask for its location instead of recreating it.
  3. Run the script from the environment it expects.
  4. Preserve its signing identity, App Store Connect key handling, artifact naming, and notarization flow.
  5. Verify the resulting artifact with the script's checks or spctl.
  6. Report the artifact path, size, notarization result, and Gatekeeper result.

Never print private key contents, signing credentials, or secret values.

© OutThisLife, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/notarize-mac of OutThisLife/brooklyn-skills.

Open the folder on GitHubat commit 8a97904

Compare with similar skills

Notarize Mac next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Notarize Mac compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Notarize Mac this skillOutThisLife/brooklyn-skills199—~295Automated safety check: PassMIT
Site ArchitectureAvdLee/RocketSimApp80311 repos~3.3kAutomated safety check: PassCustom licence
Engine Whats Newflutter/flutter179k—~978Automated safety check: PassBSD-3-Clause
macOS Spm App PackagingDimillian/Skills4k5 repos~1.2kAutomated safety check: PassMIT
Openclaw Live Updateropenclaw/openclaw392k—~3.7kAutomated safety check: PassMIT
Orca iOS Simulator Controlstablyai/orca87k1 repos~584Automated safety check: PassApache-2.0

Similar skills

  • Site Architecture

    AvdLee/RocketSimApp

    When the user wants to plan, map, or restructure their website's page hierarchy, navigation, URL structure, or internal linking.

    803 GitHub starsUsed in 11 repos~3.3k tokens
    Marketing & SEOAuto-check passed
  • Engine Whats New

    flutter/flutter

    Generates the "what's new" release summary and diff file for changes in the Flutter engine (//engine/src/flutter) between two releases (e.g., 3.47 vs 3.44).

    179k GitHub stars~978 tokensUpdated today
    MobileAuto-check passed
  • macOS Spm App Packaging

    Dimillian/Skills

    Scaffold, build, and package SwiftPM-based macOS apps without an Xcode project.

    4k GitHub starsUsed in 5 repos~1.2k tokens
    MobileAuto-check passed
  • Openclaw Live Updater

    openclaw/openclaw

    Maintain the canonical live OpenClaw main checkout, macOS LaunchAgent-managed Gateway, local macOS app, exact-head main CI, and recurring full release validation.

    392k GitHub stars~3.7k tokensUpdated today
    DevOps & CloudAuto-check passed
  • iOS Simulator control from inside Orca, with the live device view in Orca's emulator pane. Use when driving a booted Apple Simulator on macOS: taps, gestures…

    87k GitHub starsUsed in 1 repo~584 tokens
    MobileAuto-check passed
  • A catalog of recurring bug shapes in the Mole Mac cleaner, used to review safety-sensitive diffs for deletion safety, unbounded commands, shell traps and weak tests.

    70k GitHub stars~2k tokensUpdated today
    DevelopmentAuto-check passed

More from OutThisLife/brooklyn-skills

All 22 skills in this repo
  • Draft Tweet

    OutThisLife/brooklyn-skills

    Draft X/Twitter posts about shipped work. An agent skill from OutThisLife/brooklyn-skills.

    199 GitHub stars~456 tokensUpdated 2 days ago
    Auto-check passed
  • Free Disk Space

    OutThisLife/brooklyn-skills

    Safely reclaim disk space on macOS without touching personal or agent data.

    199 GitHub stars~433 tokensUpdated 2 days ago
    Auto-check passed
  • List Open Work

    OutThisLife/brooklyn-skills

    List my open MRs/PRs in the current repo/worktree, each with its tracker ticket.

    199 GitHub stars~1.5k tokensUpdated 2 days ago
    Auto-check passed
  • PR Ready

    OutThisLife/brooklyn-skills

    Clear everything blocking an existing PR/MR from merging — rebase onto the default branch, get CI green, and resolve review threads (Copilot and human).

    199 GitHub stars~2.5k tokensUpdated 2 days ago
    Auto-check passed
  • PR Triage

    OutThisLife/brooklyn-skills

    Maintainer triage on OTHER people's PRs/MRs — verdict of approve, supersede, or close, salvage with credit, close the cluster.

    199 GitHub stars~4.7k tokensUpdated 2 days ago
    Auto-check passed
  • PR Update

    OutThisLife/brooklyn-skills

    Open a PR/MR if missing, or refresh an existing one's title and description so they match the current diff.

    199 GitHub stars~1.3k tokensUpdated 2 days ago
    Auto-check: notes

Works with

Questions about Notarize Mac

What does Notarize Mac do?

Build and verify a signed, notarized macOS app or DMG using the project's existing notarization automation. Notarize Mac is an agent skill from OutThisLife/brooklyn-skills. Build and verify a signed, notarized macOS app or DMG using the project's existing notarization automation.

When should I use Notarize Mac?

Notarize Mac fits situations like: the user asks to notarize a Mac build; produce a release DMG; verify Gatekeeper.

How do I install Notarize Mac in Claude Code?

Run `npx skills add OutThisLife/brooklyn-skills --skill notarize-mac -a claude-code`. Or copy the skill folder (skills/notarize-mac in OutThisLife/brooklyn-skills) into .claude/skills/notarize-mac in your project. Claude Code loads it when a task matches its description.

How do I install Notarize Mac in Codex?

Run `npx skills add OutThisLife/brooklyn-skills --skill notarize-mac -a codex`. Or copy the skill folder (skills/notarize-mac in OutThisLife/brooklyn-skills) into .agents/skills/notarize-mac in your project. Codex loads it when a task matches its description.

Can I use Notarize Mac in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add OutThisLife/brooklyn-skills --skill notarize-mac -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/notarize-mac, .gemini/skills/notarize-mac, .github/skills/notarize-mac and .opencode/skills/notarize-mac in your project.

What does Notarize Mac need to run?

SKILL.md names no scripts, command-line tools or credentials: Notarize Mac is instructions for the agent only.

Does Notarize Mac access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Notarize Mac safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Notarize Mac use?

Notarize Mac is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Notarize Mac use?

About 295 tokens (SKILL.md is roughly 1.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Notarize Mac?

Skills that share tags, products or a category with Notarize Mac: Site Architecture (AvdLee/RocketSimApp, 803 stars), Engine Whats New (flutter/flutter, 179k stars), macOS Spm App Packaging (Dimillian/Skills, 4k stars) and Openclaw Live Updater (openclaw/openclaw, 392k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Notarize Mac?

OutThisLife (a GitHub user) maintains it in OutThisLife/brooklyn-skills, which has 199 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on October 5, 2026.

Source: OutThisLife/brooklyn-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.