The body is lean and efficient: a short Quick Start, a compact parameter-format reference, and an endpoint table, with no padding or explanation of concepts Claude already knows; the one meta note on link convention is justified and purposeful.

Provides fully executable code (real BASE_URL, requests.get with params, JSON parsing), concrete 'pip install requests pandas', and a complete endpoint table with paths and descriptions; copy-paste ready.

Quick Start lays out an unambiguous single-action sequence (install deps -> locate endpoint -> run code); as a read-only data-source skill with no destructive or batch operations, validation checkpoints are not required, so the single action scoring 3 applies.

Clear overview with a well-signaled one-level-deep reference table; all 13 referenced files and 2 scripts exist and resolve correctly, and content is appropriately split into per-endpoint reference docs rather than inlined.

Lists multiple concrete actions: 'retrieve spot, derivatives, index, and other crypto market data, including real-time prices, candlesticks, funding rates, open interest', matching the score-3 anchor of several specific concrete actions.

Clearly answers 'what' with specific capabilities, but there is no 'Use when...' clause or explicit trigger guidance, which the rubric caps at 2.

Contains relevant domain terms users would say ('real-time prices, candlesticks, funding rates, open interest') but misses common variations like 'crypto prices', 'OKX API', or 'get market data'; coverage is partial.

Named to a specific vendor API ('OKX V5 REST API') with 'No authentication required, free to use', giving it a clear niche unlikely to trigger for other skills.