storekit · prisma-labs-dev — Claude Code skill: StoreKit 2 API reference
Puts StoreKit 2 reference pages on disk so the agent reads Product, Transaction, subscriptions and StoreView docs without leaving the repo.
npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a claude-codeWhat storekit does
Six Markdown pages ship with this skill. One is a framework-wide index; the rest cover Product, Transaction with its verification and history, SubscriptionInfo, StoreView and SubscriptionStoreView. The material targets in-app purchases and subscriptions on iOS 26 and later.
The lookup path is deliberate. Local .md files come first. Failing that, the agent checks other installed Apple skills, matching them by name, description or the SKILL.md frontmatter, then greps their files. Cheaper on context than pulling fresh docs over the wire.
When neither source has the page, the skill falls back to the sosumi.ai mirror, turning a doc path like /documentation/storekit/product into https://sosumi.ai/documentation/storekit/product. Offline, that last step goes nowhere. The skill runs in a forked context under the Explore agent, so the grepping stays out of your main thread.
What it helps with
- check a transaction's signature and purchase history
- read what state a subscription is in
- build a product screen with
StoreView - list available subscriptions using
SubscriptionStoreView - look up the fields on the
Productstruct
Example prompts for the agent
- Look up
Transactionverification in the storekit skill and show me how restoring purchases works. - Pull the
SubscriptionStoreViewexample out of the storekit skill. - Which fields does
Productexpose? Check the storekit reference first.
How to install storekit
1Skills CLI (Vercel)
npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a claude-code2Manually: put the files in place
~/.claude/skills/storekit/SKILL.mdCopy the whole skill folder; for one project use .claude/skills/storekit/
1Skills CLI (Vercel)
npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a codex2Manually: put the files in place
.agents/skills/storekit/SKILL.mdFor all projects use ~/.agents/skills/
1Skills CLI (Vercel)
npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a cursor2Manually: put the files in place
.cursor/skills/storekit/SKILL.mdCursor also reads .agents/skills/ and .claude/skills/
1GitHub CLI
gh skill install Prisma-Labs-Dev/apple-skills storekit2Manually: put the files in place
.github/skills/storekit/SKILL.md1Skills CLI (Vercel)
npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a gemini-cli2Platform CLI
gemini skills install https://github.com/Prisma-Labs-Dev/apple-skills --path skills/storekitManually: put the files in place
.devin/skills/storekit/SKILL.mdThe legacy .windsurf/skills/ path still works
Skills CLI (Vercel)
npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a opencodeClaude.ai
Zip the folder and upload it in Settings → Capabilities → Skills
Step by step, with commands for each platform: How to install skills in Claude Code: five ways
Questions about storekit
How do I install storekit in Claude Code?
Run npx skills add Prisma-Labs-Dev/apple-skills --skill storekit -a claude-code. The skill lands at ~/.claude/skills/storekit/SKILL.md.
What does the storekit skill do?
It gives the agent a StoreKit 2 reference for iOS 26 and later, covering in-app purchases, subscriptions, Product, Transaction, StoreView and SubscriptionStoreView.
Where does it look when a page is missing locally?
At other installed Apple skills and their local files. If the page is absent there too, it reads the sosumi.ai mirror using the path listed in storekit-overview.md.
Source text
SKILL.md · MIT
--- name: storekit user-invocable: true description: "API reference: StoreKit 2. Product, Transaction, subscriptions, StoreView, SubscriptionStoreView." context: fork agent: Explore --- # StoreKit Reference StoreKit 2 for in-app purchases and subscriptions (iOS 26+). ## Downloaded Reference Files | File | Content | |------|---------| | [storekit-overview.md](storekit-overview.md) | Full StoreKit framework index | | [product.md](product.md) | Product struct | | [transaction.md](transaction.md) | Transaction verification & history | | [subscriptioninfo.md](subscriptioninfo.md) | Subscription info & status | | [storeview.md](storeview.md) | StoreView (product display) | | [subscriptionstoreview.md](subscriptionstoreview.md) | SubscriptionStoreView | ## Fetching More Docs 1. Search this skill's local `.md` files first. 2. If the topic is not here, check the other installed Apple skills you have available by their names, descriptions, or `SKILL.md` frontmatter, then grep their local files. This is faster and uses less context than fetching new docs from the internet. 3. If no installed skill has the page, use the relevant documentation path from `storekit-overview.md` with the `sosumi.ai` Markdown mirror. For example, `/documentation/storekit/product` maps to `https://sosumi.ai/documentation/storekit/product`.
© Prisma-Labs-Dev · MIT · Prisma-Labs-Dev/apple-skills
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