Conciseness

Mostly lean (dense tables and commands), but the "Common setup issues" table in Step 1 duplicates the "Error Reference" table ("Unknown command: hyperliquid" and "hyperliquid info 429" appear in both), and "Positive funding ⇒ longs pay shorts; negative ⇒ shorts pay longs" explains a convention Claude already knows. It sits noticeably above the score-3 anchor (only minor trims needed) but short of the score-5 anchor because clear duplication exists.

Actionability

Every command is copy-paste ready with exact flags, sort keys, and limits ("opencli hyperliquid markets --sort fundingAprPct --limit 15 -f json", "Valid intervals: 1m 3m 5m ... Max 5000", "--depth (max 20)"), and error-to-fix mappings cover the common failure cases — a full match to the score-5 anchor, exceeding the score-4 anchor's "minor gaps".

Workflow Clarity

Five clearly sequenced steps with explicit validation checkpoints: the Step 1 probe branches READY / SETUP_NEEDED / NOT_INSTALLED with per-branch fixes, and Step 5 diagnostics ("A successful BTC row confirms opencli, the plugin, and the public API are all reachable") provide an explicit error-recovery loop. The skill is read-only (no destructive or batch operations), so the validation cap does not apply; checkpoints are explicit rather than implied (the score-4 anchor).

Progressive Disclosure

One real, well-signaled, one-level-deep reference ("references/commands.md — Every command with all flags, output schemas, and analyst workflows", verified to exist) with an easy-to-navigate body. It falls short of the score-5 anchor because the body still inlines full output-column lists for all seven commands and flag minutiae that duplicate commands.md, and short of the score-3 anchor because structure and reference signaling are good.

Specificity

"mark, oracle, and mid prices, 24h change, funding rates (hourly and annualized APR), open interest, volume, the L2 order book, OHLCV candles, funding history, and cross-venue funding comparisons (Hyperliquid vs Binance vs Bybit)" enumerates every capability concretely and comprehensively, matching the score-5 anchor rather than the score-4 anchor (which expects minor coverage gaps).

Completeness

It explicitly answers what ("Read Hyperliquid ... perp and spot market data through opencli and Hyperliquid's public info API") and when ("Use this skill whenever the user mentions Hyperliquid ... or asks about its perps, spot pairs such as PURR, funding, open interest, order book, or candles"), with concrete trigger phrases and a clear read-only boundary — an exact match to the score-5 anchor; the score-4 anchor requires a less explicit 'when', which is not the case here.

Trigger Term Quality

"Hyperliquid (HL, HL DEX, hyperliquid.xyz)" plus natural terms "perps", "spot pairs such as PURR", "funding", "open interest", "order book", or "candles" covers the platform identifiers and every synonym a user would naturally say, with nothing significant missing (the score-4 anchor).

Distinctiveness Conflict Risk

The trigger is scoped to a single venue ("whenever the user mentions Hyperliquid" / "asks about its perps") so generic terms like funding and order book do not fire for other exchange-data skills — a clear niche with minimal conflict risk, matching the score-5 rather than the score-4 anchor (which expects overlap with closely related skills).