Conciseness

The bulk of the body is executable commands, but there is real padding: the intro paragraph explaining what CoinAPI is and who uses it ("It's used by developers, traders, and researchers to access real-time and historical data for building trading algorithms..."), the bare "CoinAPI Overview" name-list, and prose like "This will burn less tokens". Matches anchor 3 (mostly efficient with some unnecessary explanation); not 2, because the padding is confined to the intro and filler lines rather than pervasive; not 4, because the intro and overview list clearly should be trimmed.

Actionability

Concrete, copy-paste-ready commands throughout — "npm install -g @membranehq/cli@latest", "membrane login complete <code>", "membrane connection ensure ... --json", "membrane action run <actionId> --input '{\"key\": \"value\"}'", plus a proxy flag table. Matches anchor 4; not 5, because "Popular actions" lists zero actual actions, there is no worked end-to-end example with real parameter values, and invocations alternate between "membrane" and "npx @membranehq/cli" without explanation.

Workflow Clarity

Install → login → connection ensure → poll with --wait → handle CLIENT_ACTION_REQUIRED (show uiUrl, follow agentInstructions) → check the error field on failure → search → run → proxy is a clear sequence with explicit checkpoints. Matches anchor 4; not 5, because there is no validate/fix/retry feedback loop after a failed action run; not 3, because the checkpoints (poll until state changes, inspect clientAction and error) are explicit — though the dangling "skip to **Step 2**" reference points at a step that is never labeled, and "1b" has no labeled "1a".

Progressive Disclosure

A single-file skill with no bundle files (no references/, scripts/, or assets/ exist) and well-organized, scannable sections, each appropriately sized for inline placement. Matches anchor 4; not 5, because the under-50-line simple-skill exception does not apply and generic Membrane material (login flow, proxy flag table, agent types) that would serve a shared reference file is inlined; not 3, because nothing is buried and the structure is clean.

Specificity

Names the domain ("CoinAPI integration") but the stated actions — "Manage data, records, and automate workflows" — are generic template phrases rather than concrete CoinAPI capabilities (no prices, OHLCV, quotes, trades, or order books are mentioned), and "records" is not even a CoinAPI concept. This matches anchor 2 (domain named, actions minimal or generic); not 3, because no 1-2 concrete actions are actually listed.

Completeness

Both "what" ("Manage data, records, and automate workflows") and "when" ("Use when the user wants to interact with CoinAPI data") are explicitly present in third person, matching anchor 4. Not 5: the "what" is vague boilerplate and the "when" is circular (it only fires if the user already says CoinAPI) with no concrete trigger phrases. Not 3: the "Use when" clause is explicit, not missing or weakly implied.

Trigger Term Quality

The only substantive keyword is the brand name "CoinAPI" (plus the generic "data" and "integration"), while the natural phrases a user would say for this need — crypto prices, bitcoin, market data, exchange rates, OHLCV — are entirely absent. Matches anchor 2 (one or two generic keywords, missing the natural phrases); not 3, because common synonyms and variations are wholly missing, so it only triggers when the user already names CoinAPI.

Distinctiveness Conflict Risk

The CoinAPI brand name gives this a clear niche that is unlikely to trigger for the wrong skill, matching anchor 4. Not 5: the generic "Manage data, records, and automate workflows" tail overlaps with any data-management skill and there are no distinctive action-based triggers; not 3: the dominant trigger is a distinct named product.