What is asc-signing-setup?

Instructions for setting up Apple app signing assets, including bundle IDs, capabilities, certificates, and provisioning profiles. These assets let iOS and macOS apps be identified, authorised, and prepared for distribution.

Use it when onboarding an Apple app or rotating its signing certificates and provisioning profiles.

It brings the signing setup steps into one workflow and supports creating or renewing the required assets. It requires configured authentication, a bundle identifier, a target platform, and a certificate request file.

asc-signing-setup — Skill for Claude Code and Codex by Abdullah4AI: Instructions for setting up Apple app signing assets, including…

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/abdullah4ai/apple-developer-toolkit/asc-signing-setup

Any agent

npx skills add Abdullah4AI/apple-developer-toolkit --skill asc-signing-setup

Clone the repo

git clone --depth 1 https://github.com/Abdullah4AI/apple-developer-toolkit

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/abdullah4ai/apple-developer-toolkit/asc-signing-setup.svg)](https://agentmods.dev/skills/abdullah4ai/apple-developer-toolkit/asc-signing-setup)

Your own site

<a href="https://agentmods.dev/skills/abdullah4ai/apple-developer-toolkit/asc-signing-setup"><img src="https://agentmods.dev/badge/skills/abdullah4ai/apple-developer-toolkit/asc-signing-setup.svg" alt="Measured on agentmods" height="20"></a>

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 501 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.

Model	Per session	Once invoked
Fable 5	$0.00035	$0.00501
Opus 5	$0.00017	$0.00251
Sonnet 5	$0.00007	$0.00100
Haiku 4.5	$0.00003	$0.00050

Measured 4d ago against content hash f9db3c39fad4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

asc-signing-setup 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 4d 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.

swiftship/internal/skills/data/features/asc-signing-setup/SKILL.md · 45 lines

What it actually says

asc signing setup

Use this skill when you need to create or renew signing assets for iOS/macOS apps.

Preconditions

Auth is configured (asc auth login or ASC_* env vars).
You know the bundle identifier and target platform.
You have a CSR file for certificate creation.

Workflow

Create or find the bundle ID:
- asc bundle-ids list --paginate
- asc bundle-ids create --identifier "com.example.app" --name "Example" --platform IOS
Configure bundle ID capabilities:
- asc bundle-ids capabilities list --bundle "BUNDLE_ID"
- asc bundle-ids capabilities add --bundle "BUNDLE_ID" --capability ICLOUD
- Add capability settings when required:
  - --settings '[{"key":"ICLOUD_VERSION","options":[{"key":"XCODE_13","enabled":true}]}]'
Create a signing certificate:
- asc certificates list --certificate-type IOS_DISTRIBUTION
- asc certificates create --certificate-type IOS_DISTRIBUTION --csr "./cert.csr"
Create a provisioning profile:
- asc profiles create --name "AppStore Profile" --profile-type IOS_APP_STORE --bundle "BUNDLE_ID" --certificate "CERT_ID"
- Include devices for development/ad-hoc:
  - asc profiles create --name "Dev Profile" --profile-type IOS_APP_DEVELOPMENT --bundle "BUNDLE_ID" --certificate "CERT_ID" --device "DEVICE_ID"
Download the profile:
- asc profiles download --id "PROFILE_ID" --output "./profiles/AppStore.mobileprovision"

Rotation and cleanup

Revoke old certificates:
- asc certificates revoke --id "CERT_ID" --confirm
Delete old profiles:
- asc profiles delete --id "PROFILE_ID" --confirm

Notes

Always check --help for the exact enum values (certificate types, profile types).
Use --paginate for large accounts.
--certificate accepts comma-separated IDs when multiple certificates are required.
Device management uses asc devices commands (UDID required).

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.

4d ago First seen · 45 lines · 35 tokens per session scan A f9db3c39fad4

Subscribe to this mod's changes

asc-signing-setup is a skill published in the GitHub repository Abdullah4AI/apple-developer-toolkit (10 stars, last pushed 4d ago), licensed MIT. It adds 35 tokens to every session and 501 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 2026-08-31.

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