Conciseness

The bulk of the body is high-value domain calibration (Z-scores by segment, 'typical lifts: 15–40% for TPR only... 300–500%+ for doorbuster', 'every week of delay in markdown initiation costs 3–5 percentage points of margin'), but the Forecasting Methods section partially restates textbook knowledge Claude already has (explaining what Holt's and Holt-Winters add, defining MAPE and tracking signal). Most explanations carry a practical caveat that earns their tokens, so this sits at the score-4 anchor ('efficient; minor instances of over-explanation') rather than the score-5 'every token earns its place'.

Actionability

Guidance is fully concrete and executable for an instruction-only skill: explicit formulas ('SS = Z × √(LT_avg × σ_d² + d_avg² × σ_LT²)', 'IP = On-Hand + On-Order − Backorders − Committed'), a demand-pattern method-selection table with fallbacks and review triggers, banded markdown/sell-through decision tables, and timeline-bound escalation triggers. Per the rubric's code_vs_instruction note, the absence of code is not penalized — this matches the score-5 anchor's 'specific examples cover the common cases'.

Workflow Clarity

'How It Works' lays out a clear six-step sequence ending in a monitoring feedback loop (step 6: 'Monitor forecast accuracy (MAPE, bias) and adjust models in the next planning cycle'), and the method-selection table defines explicit review triggers. However, there is no explicit validation checkpoint mid-flow (e.g., verify forecast accuracy before step 5 routes purchase orders), which places it at the score-4 anchor ('most checkpoints present; minor validation gaps') rather than score 5.

Progressive Disclosure

This is a 240-line single-file skill with no bundle files (no references/, scripts/, or assets/ exist). Internal sectioning is good, but content that clearly belongs in separate files — eight edge cases, communication templates, escalation matrices — is fully inlined, and 'Additional Resources' points to nothing concrete ('Pair this skill with your SKU segmentation model...'). This matches the score-3 anchor ('content that should be separate is inline' with some structure) rather than score 4, since references are not merely unclear — there are none.

Specificity

The description enumerates five concrete, distinct capabilities ('demand forecasting method selection, ABC/XYZ segmentation, safety stock and reorder-point optimization, promotional lift and post-promo dip estimation, and seasonal transition and markdown timing') in third-person voice, comprehensively covering the stated domain with no notable gaps.

Completeness

Both questions are answered explicitly: the 'what' via the enumerated capability list and the 'when' via a concrete 'Use when forecasting demand, setting safety stock, planning replenishment...' trigger clause — an exact match to the score-5 anchor.

Trigger Term Quality

'Use when forecasting demand, setting safety stock, planning replenishment, managing promotions, or optimizing inventory levels' provides natural phrases users would say, but common synonyms like 'demand planning', 'stockout', 'reorder point', 'markdown', and 'SKU' are absent — good coverage with a few natural terms missing, matching the score-4 anchor rather than the comprehensive score-5 anchor.

Distinctiveness Conflict Risk

'Codified demand planning expertise for multi-location retailers' plus niche terminology (ABC/XYZ segmentation, post-promo dip, markdown timing) establishes a clear niche with distinct triggers; only trivial overlap with a generic forecasting skill, so it sits at the score-5 anchor rather than the score-4 'minor overlap' anchor.