Content
78%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A well-structured, token-efficient skill with executable Kotlin examples, a clear phased workflow, and explicit edge-case and verification guidance. The main gaps are a pseudocode placeholder in the error-handling block, an undefined userFacingMessage helper, and a version-number dependency that will age.
Suggestions
Replace the `try { /* awaitPurchase */ }` placeholder in Phase 4 with the actual awaitPurchase call so the error-handling example is copy-paste ready, and define or inline the userFacingMessage mapping (or make the rc-error-handling reference explicit at first use).
Move the "RevenueCat 10.x" purchase-option behavior into a version-scoped or compatibility note so the guidance does not silently become stale as the SDK major version changes.
Add a pre-launch validation step (e.g., testing with Google Play license testers and a pending-payment test track) to the Verify phase to complete the workflow's validation checkpoints.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean and assumes Claude's competence (never explains what RevenueCat or BillingClient is), but the version-specific "RevenueCat 10.x sells only that purchase option" statement sits outside any old-patterns/deprecated section, and the acknowledge/consume prohibition is stated in both Phase 1 and Phase 3. Efficient with minor trimmable instances, matching anchor 4 rather than the every-token-earns-its-place anchor 5. | 4 / 5 |
Actionability | Three of the four code blocks are concrete, executable Kotlin (awaitOfferings fetch, awaitPurchase launch, entitlement/nonSubscriptionTransactions reads), but Phase 4's `try { /* awaitPurchase */ }` is a placeholder sketch and `userFacingMessage` is referenced but not defined locally. Mostly executable with minor gaps matches anchor 4; not 5 because it is not copy-paste ready throughout, and not 3 since only one block is sketch-like. | 4 / 5 |
Workflow Clarity | A clear five-phase sequence (Scope, Prepare, Execute, Edge Cases, Verify) with an explicit outcome-to-action table for success/cancel/pending/error and a dedicated Verify phase ("Trust `result.customerInfo`... Do not grant access from optimistic local state"). Falls short of anchor 5 because there is no pre-launch testing checkpoint (e.g., Google Play license testers) and no retry guidance after user-facing errors. | 4 / 5 |
Progressive Disclosure | No bundle files exist (no references/, scripts/, or assets/ directories), and none are needed: the skill is self-contained, organized into clear phase sections, inlines nothing that belongs in a separate file, and its single one-level-deep reference (the full-chapter URL) plus the rc-error-handling cross-reference are clearly signaled. Well-organized sections with no external reference needs satisfy the top anchor per the rubric's simple-skill guidance. | 5 / 5 |
Total | 17 / 20 Passed |