macos-packaging-notarization

macos-packaging-notarization is a skill for Claude Code, Codex from robinebers/openusage. It costs 32 tokens per session (287 once invoked), scanned A, original, MIT.

A macOS release guide for preparing app bundles, code signing, hardened runtime settings, and notarization. Notarization is Apple's security check for apps distributed outside the Mac App Store.

In plain words
What is it for?
Use it to inspect archives and exported apps, validate nested frameworks and helper tools, check entitlements, and diagnose distribution or notarization failures.
Why use it?
It helps distinguish packaging and signing problems from issues that only appear when macOS checks an app's trust. It also prevents applying release requirements to ordinary local debug runs.

Skill for Claude CodeCodex

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/robinebers/openusage/macos-packaging-notarization
Any agent
npx skills add robinebers/openusage --skill macos-packaging-notarization
Clone the repo
git clone --depth 1 https://github.com/robinebers/openusage

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 macos-packaging-notarization

README.md
[![agentmods](https://agentmods.dev/badge/skills/robinebers/openusage/macos-packaging-notarization.svg)](https://agentmods.dev/skills/robinebers/openusage/macos-packaging-notarization)
Your own site
<a href="https://agentmods.dev/skills/robinebers/openusage/macos-packaging-notarization"><img src="https://agentmods.dev/badge/skills/robinebers/openusage/macos-packaging-notarization.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 287 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 $0.00032 $0.00287
Opus 5 $0.00016 $0.00143
Sonnet 5 $0.00006 $0.00057
Haiku 4.5 $0.00003 $0.00029

Measured 3d ago against content hash 4ad52cba493f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

macos-packaging-notarization 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 3d 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

2 near-identical copies found in the catalogue:

.agents/skills/macos-packaging-notarization/SKILL.md · 48 lines

What it actually says

Packaging & Notarization

Quick Start

Use this skill when the work is about shipping the app rather than merely running it locally: archives, exported app bundles, notarization readiness, hardened runtime, or distribution validation.

Workflow

  1. Confirm the distribution goal.

    • Local archive validation
    • Signed distributable app
    • Notarization troubleshooting
  2. Inspect the artifact.

    • Validate app bundle structure.
    • Check nested frameworks, helper tools, and entitlements.
  3. Inspect signing and runtime prerequisites.

    • Hardened runtime
    • Signing identity
    • Nested code signatures
    • Required entitlements
  4. Explain notarization readiness or failure.

    • Separate packaging issues from trust-policy symptoms.
    • Point to the minimum follow-up validation commands.

Guardrails

  • Do not present notarization as required for ordinary local debug runs.
  • Call out when you lack the actual exported artifact and are inferring from project settings.
  • Keep advice concrete and verifiable.

Output Expectations

Provide:

  • what artifact or settings were inspected
  • whether the app looks distribution-ready
  • the top missing prerequisite or failure mode
  • the next validation or repair step
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. 3d ago First seen · 48 lines · 32 tokens per session scan A 4ad52cba493f

Subscribe to this mod's changes

macos-packaging-notarization is a skill published in the GitHub repository robinebers/openusage (3,975 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 287 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 2026-08-30.

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