The body is lean (~40 lines) with no padding or re-explanation of concepts Claude already knows; every line describes a ritual action or check, matching the lean-and-efficient anchor; not below because there is no unnecessary explanation.

Steps give concrete, specific guidance ("three altars", "facing north", "jade disc (bi) on head or chest", "turtle shells"); as an instruction-only skill, concrete specificity earns the top anchor without code; not below because guidance is actionable rather than abstract.

Five explicitly numbered steps plus a dedicated Validation section with three verification checkpoints (altar setup, four prayer elements, sealed chest) provide a clear sequence with validation; not below because checkpoints are explicit, not implicit.

A simple, single-purpose skill under 50 lines with no external bundle files and clean sectioning (Overview, Steps, Expected Outcomes, Validation) — per the simple_skills note this earns the top anchor without external references; not below because organization is clear and references are not nested.

Lists multiple specific concrete actions — "sacred space preparation, jade disc and gui tablet adornment, oracle bone consultation, and sealed documentation in golden chest" — matching the top anchor; not below because it is comprehensive rather than partial.

An explicit "Use when..." clause answers when, and the enumerated ritual phases answer what, satisfying both halves; not below because neither half is missing or merely implied.

"Use when performing solemn divination rituals to seek ancestral guidance" supplies relevant natural keywords, but coverage of common variations (e.g. "oracle bones", "seeking guidance from ancestors") is thin, so it sits at the middle anchor rather than the broad-coverage top anchor.

The ancient-divination niche is highly specific with distinct triggers, making conflict with other skills unlikely; not below because it is not generic.