asc-notarization

asc-notarization is a skill for Claude Code from rorkai/app-store-connect-cli-skills. It costs 47 tokens per session (1,709 once invoked), scanned C, original, MIT.

A macOS app distribution workflow for archiving, exporting, signing, and notarizing apps. Notarization is Apple’s security check for apps distributed outside the Mac App Store.

In plain words
What is it for?
Building a macOS app with Xcode, signing it with a Developer ID Application certificate, and submitting it to Apple for notarization.
Why use it?
It prepares an app for external distribution and checks that the required Developer ID signing identity is available before the build.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the asc plugin — 25 skills shipped together

Good fit Building a macOS app with Xcode, signing it with a Developer ID Application certificate, and submitting it to Apple for notarization.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rorkai/app-store-connect-cli-skills/asc-notarization
About the project

rorkai/app-store-connect-cli-skills is a community-maintained collection of Agent Skills for using the asc command-line tool with Apple App Store Connect and Apple Ads. It helps coding agents automate builds, TestFlight, metadata, submissions, signing, and advertising workflows.

rorkai/app-store-connect-cli-skills · 1,016 stars · on GitHub · asccli.sh

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 rorkai/app-store-connect-cli-skills --skill asc-notarization
Clone the repo
git clone --depth 1 https://github.com/rorkai/app-store-connect-cli-skills

Made for: Claude Code.

Or install asc, the plugin that ships this one along with the rest of its 25 skills.

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 asc-notarization

README.md
[![agentmods](https://agentmods.dev/badge/skills/rorkai/app-store-connect-cli-skills/asc-notarization/github.svg)](https://agentmods.dev/skills/rorkai/app-store-connect-cli-skills/asc-notarization)
Your own site
<a href="https://agentmods.dev/skills/rorkai/app-store-connect-cli-skills/asc-notarization"><img src="https://agentmods.dev/badge/skills/rorkai/app-store-connect-cli-skills/asc-notarization/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 asc-notarization

Your own site · 80×15
<a href="https://agentmods.dev/skills/rorkai/app-store-connect-cli-skills/asc-notarization"><img src="https://agentmods.dev/badge/skills/rorkai/app-store-connect-cli-skills/asc-notarization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,709 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket warn 17 Apr 2026
  • Snyk warn 17 Apr 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 11 findings, up to high

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 →

  • high Privilege Escalation · line 35
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 35
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Supply Chain · line 136
    Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.
    Fix: Avoid downloading and executing remote scripts. Use trusted packages from PyPI/npm. If remote fetch is required, verify checksums and use HTTPS.
  • medium Rogue Agent · line 61
    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 65
    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 66
    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 75
    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 84
    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 188
    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 65
    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 84
    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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00047 $0.01709
Opus 5 $0.00023 $0.00855
Sonnet 5 $0.00009 $0.00342
Haiku 4.5 $0.00005 $0.00171

Measured yesterday against content hash e3e674725cd8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade C, and why

asc-notarization scanned grade C with 2 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 yesterday.

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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -sL "LOG_URL" | python3 -m json.tool

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sL "LOG_URL" | python3 -m json.tool
Origin

Copies of this mod

3 near-identical copies found in the catalogue:

skills/asc-notarization/SKILL.md · 209 lines

How it starts

The opening of the file, as written. The whole thing — 209 lines — stays where its author put it; the contents beside it link to each section on GitHub.

macOS Notarization

Use this skill when you need to notarize a macOS app for distribution outside the App Store.

Preconditions

  • Xcode installed and command line tools configured.
  • Auth is configured (asc auth login or ASC_* env vars).
  • A Developer ID Application certificate in the local keychain.
  • The app's Xcode project builds for macOS.

Preflight: Verify Signing Identity

Before archiving, confirm a valid Developer ID Application identity exists:

security find-identity -v -p codesigning | grep "Developer ID Application"

If no identity is found, create one at https://developer.apple.com/account/resources/certificates/add (the App Store Connect API does not support creating Developer ID certificates).

Inspect Trust Settings

If codesign or xcodebuild fails with "Invalid trust settings" or "errSecInternalComponent", the certificate may have custom trust overrides that break the chain:

# Check for custom trust settings
security dump-trust-settings 2>&1 | grep -A1 "Developer ID"

These errors do not by themselves prove a trust override is the cause. Inspect the affected certificate before proposing a repair. Changing trust settings requires explicit authorization for that certificate; do not remove trust overrides or re-sign an arbitrary app as a diagnostic step.

Step 1: Archive

xcodebuild archive \
  -scheme "YourMacScheme" \
  -configuration Release \
  -archivePath /tmp/YourApp.xcarchive \
  -destination "generic/platform=macOS"

Step 2: Export with Developer ID

Create an ExportOptions plist for Developer ID distribution:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>method</key>
    <string>developer-id</string>
    <key>signingStyle</key>
    <string>automatic</string>
    <key>teamID</key>
    <string>YOUR_TEAM_ID</string>
</dict>
</plist>

Export the archive:

Read the full file on GitHub · 209 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. yesterday Changed · -4 lines e3e674725cd8
  2. 9d ago First seen · 213 lines · 47 tokens per session scan C e71916140346

Subscribe to this mod's changes

asc-notarization is a skill published in the GitHub repository rorkai/app-store-connect-cli-skills (1,016 stars, last pushed yesterday), licensed MIT. It adds 47 tokens to every session and 1,709 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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