Content
88%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 high-quality, dense skill body: executable test code for all three suites, explicit per-gateway specifics, a clear phase sequence with validation checkpoints, and well-signaled one-level references. The only weaknesses are minor: a redundant closing reference list that duplicates inline links, and three orphaned bundle files that SKILL.md never points to.
Suggestions
Trim or consolidate the closing References section: the four gateway doc URLs (Stripe/Adyen/PayPal) are already cited inline at their point of use, so the duplicated links cost tokens without adding navigation value.
Link or remove the orphaned bundle files: 3ds-flows.md, gateway-test-cards.md, and payment-state-machines.md exist in references/ but are never referenced from SKILL.md, making their content undiscoverable — e.g. add a one-line pointer such as '**3DS flows**: See [references/3ds-flows.md](references/3ds-flows.md)'.
Clarify the relationship between payment-state-machines.md and payment-flow-states.md (the former self-describes as a 'deep reference' for the latter) — either fold it into the state-machine phase as an explicit optional deep-dive link or merge the two to avoid near-duplicate state documentation.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean and dense — tables, executable snippets, and one-line rationales like "Without idempotency, network retries double-refund the customer" — with zero explanation of concepts Claude already knows. Held at 4 rather than 5 because the closing References section re-lists the four gateway doc URLs already cited inline, a minor redundancy that could be trimmed. | 4 / 5 |
Actionability | Fully executable guidance: TypeScript tests asserting real error codes (e.g. rejects.toThrow(/refund_amount_exceeds_charge_amount/)), a grep inventory command, stripe CLI replay commands, and a concrete YAML coverage matrix, with per-gateway API specifics (Braintree settlement-first, Adyen async refund notification). This matches the copy-paste-ready anchor. | 5 / 5 |
Workflow Clarity | Phases 0-3 are sequenced in explicit dependency order with validation doctrine woven throughout — "every async assertion waits on the webhook, never the synchronous API return", the four-case signature gauntlet, idempotent redelivery checks, and a final coverage-matrix verification with 'document deliberate gaps'. Checkpoints are explicit, matching the 5 anchor; this is test authoring, not a destructive/batch operation, so no cap applies. | 5 / 5 |
Progressive Disclosure | All four inline references (payment-flow-states.md, reason-codes.md, replay-simulators.md, advanced-recovery-scenarios.md) exist, are one level deep, and are well-signaled with what each contains. Held at 4 because three bundle files — 3ds-flows.md, gateway-test-cards.md, payment-state-machines.md — are never linked from SKILL.md, leaving that content undiscoverable from the overview. | 4 / 5 |
Total | 18 / 20 Passed |