The ~40-line body is lean and tightly written, with no padding or explanation of concepts Claude already knows; every section earns its place, matching the 'lean and efficient' anchor.

Concrete, specific instruction-only guidance throughout — exact phrases to state ('On receiving orders, forget family...'), specific escalation steps, and concrete substitute targets (servant, chariot driver, horse) — fully actionable without code.

Both methods are clearly numbered and sequenced, and a dedicated Validation section provides explicit checkpoints and a feedback loop ('if laughter or hesitation persists, repeat enforcement') for the destructive enforcement operations.

A simple, self-contained skill under 50 lines with no external references, organized into clear sections (Overview, Method 1, Method 2, Key Principle, Expected Outcome, Validation); per the simple-skills note this qualifies for the top score.

Lists multiple concrete actions — 'enforcing punctuality penalties against high-ranking offenders', 'asserting 将在军君令有所不受', and 'demonstrating that rules apply equally regardless of status' — matching the multiple-specific-actions anchor.

Explicitly states what it does ('Follows Sima Rangju and Sun Wu's methods — enforcing...') and when to use it ('Use when taking command of new troops or establishing organizational authority'), satisfying both what and when.

Natural triggers like 'taking command of new troops' and 'establishing organizational authority' are present, but coverage is thin with few common variations, fitting the 'some relevant keywords but missing common variations' anchor rather than the broad-coverage level 3.

A very niche historical-military domain with highly specific triggers; it is clearly distinguishable and unlikely to fire for unrelated skills.