Conciseness

Most of the body is command-focused and efficient, but it opens with a paragraph explaining what Adyen is ("Adyen is a global payment platform that allows businesses to accept payments online, in-app, and in-store... E-commerce businesses and retailers use Adyen to streamline their payment operations"), which Claude already knows, and includes the filler "Adyen Overview" bullet list with "Use action names and parameters as needed." This fits anchor 3 (mostly efficient but includes some unnecessary explanation); it is above anchor 2 because the padding is limited to two spots rather than pervading the document.

Actionability

Concrete, copy-paste-ready commands throughout: `npm install -g @membranehq/cli@latest`, `membrane connection ensure "https://www.adyen.com/" --json`, `membrane action run <actionId> --input '{"key": "value"}' --json`, plus a complete proxy flag table. It falls short of anchor 5 because there is no worked end-to-end example with real values — every command uses placeholders (CONNECTION_ID, QUERY, actionId) and no Adyen-specific action is ever named or executed.

Workflow Clarity

There is a clear sequence (install → login → connection ensure → poll state → search actions → run → proxy fallback) with genuine validation checkpoints: polling `--wait` until state leaves BUILDING, an explicit state machine for READY / CLIENT_ACTION_REQUIRED / CONFIGURATION_ERROR with recovery actions (show uiUrl, re-poll), and guidance to prefer pre-built actions. It misses anchor 5 due to a dangling instruction — "skip to **Step 2**" when no Step 2 exists in the document — and inconsistent CLI invocation (`membrane` vs `npx @membranehq/cli`).

Progressive Disclosure

No bundle files (references/, scripts/, assets/) exist, and the single-file body (~140 lines) is organized into clear sections (Install, Authentication, Connecting, Searching, Running, Proxy, Best practices) with the bulkier reference-style material (the clientAction state-machine detail and the proxy flag table) appropriately set off. This matches anchor 4 (good structure, minor organization gaps); it misses anchor 5 because those reference-style blocks and the CLI setup boilerplate could live in separate reference files to keep SKILL.md a leaner overview.

Specificity

The description names the domain ("Adyen integration") but its actions are generic — "Manage data, records, and automate workflows" applies to nearly any SaaS integration and names no concrete Adyen operations like payments, refunds, or checkout. It is above anchor 1 (it does name the domain) but clearly below anchor 3, which requires 1-2 concrete actions.

Completeness

Both parts are present: a 'what' ("Adyen integration. Manage data, records, and automate workflows") and an explicit 'when' ("Use when the user wants to interact with Adyen data"). It sits at anchor 4 rather than 5 because the 'what' is generic and the 'when' trigger ('interact with Adyen data') lacks concrete trigger phrases; it is above anchor 3 because the 'when' clause is explicit, not merely implied.

Trigger Term Quality

"Adyen" appears three times and is the primary natural keyword a user would say, but the description omits common synonyms users actually use with this platform — "payments", "refund", "checkout", "transaction", "payout". This matches anchor 3 (some relevant keywords, missing common variations/synonyms); it is above anchor 2 because 'Adyen' is a specific, natural trigger rather than a generic one.

Distinctiveness Conflict Risk

Repeated explicit "Adyen" triggers make it clearly distinguishable from non-payment skills, giving it a distinct niche. However, because the description contains no payment-specific language, queries like "process a payment" or "issue a refund" would not distinguish it from analogous integration skills for other payment platforms — minor overlap risk with closely related skills, matching anchor 4 rather than 5.