storekit-ref

storekit-ref is a skill for Claude Code from IGTA-Tech/claude-skills-research. It costs 54 tokens per session (8,400 once invoked), scanned A, original, no licence file.

A reference guide to StoreKit 2, Apple’s framework for in-app purchases and subscriptions on iOS. It covers products, transactions, subscription status, purchase options, and StoreKit views.

In plain words
What is it for?
Use it when building purchases or subscriptions, handling transactions and renewals, or working with StoreKit’s app and server APIs.
Why use it?
It gives developers one place to check the APIs and newer iOS 18.4 changes needed to implement or understand App Store purchases.

Skill for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Part of the axiom plugin — 90 skills, 7 commands, 21 agents, 4 hooks shipped together

Good fit Use it when building purchases or subscriptions, handling transactions and renewals, or working with StoreKit’s app and server APIs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/igta-tech/claude-skills-research/storekit-ref
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 IGTA-Tech/claude-skills-research --skill storekit-ref
Clone the repo
git clone --depth 1 https://github.com/IGTA-Tech/claude-skills-research

Made for: Claude Code.

Or install axiom, the plugin that ships this one along with the rest of its 90 skills, 7 commands, 21 agents, 4 hooks.

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 storekit-ref

README.md
[![agentmods](https://agentmods.dev/badge/skills/igta-tech/claude-skills-research/storekit-ref/github.svg)](https://agentmods.dev/skills/igta-tech/claude-skills-research/storekit-ref)
Your own site
<a href="https://agentmods.dev/skills/igta-tech/claude-skills-research/storekit-ref"><img src="https://agentmods.dev/badge/skills/igta-tech/claude-skills-research/storekit-ref/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 storekit-ref

Your own site · 80×15
<a href="https://agentmods.dev/skills/igta-tech/claude-skills-research/storekit-ref"><img src="https://agentmods.dev/badge/skills/igta-tech/claude-skills-research/storekit-ref.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,400 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.
Origin unknown 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 $0.00054 $0.08400
Opus 5 $0.00027 $0.04200
Sonnet 5 $0.00011 $0.01680
Haiku 4.5 $0.00005 $0.00840

Measured 7d ago against content hash dbd793f4e210, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

storekit-ref 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 7d 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.

Axiom/.claude-plugin/plugins/axiom/skills/storekit-ref/SKILL.md · 1,504 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 7d ago First seen · 1,504 lines · 54 tokens per session scan A dbd793f4e210

Subscribe to this mod's changes

storekit-ref is a skill published in the GitHub repository IGTA-Tech/claude-skills-research (2 stars, last pushed 2d ago), with no licence file. It adds 54 tokens to every session and 8,400 once invoked, about $0.0003 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 2026-09-03.

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