Conciseness

The body is lean and packs in only non-obvious facts Claude cannot know: crowd anonymity tiers, 24-48 hour postback delays, the 15-minute handleTap freshness window, the well-known endpoint path, 0...63 fine conversion values, and the AdAttributionKitReengagementOpen parameter. There is no explanation of concepts Claude already knows and no padded sections, so it fits anchor 5 rather than anchor 4's "minor instances of over-explanation".

Actionability

Fully executable guidance throughout: concrete Info.plist XML, Postback.updateConversionValue calls with real signatures and arguments, handleTap(reengagementURL:), UIEventAttributionView setup, and complete functions such as handleUniversalLink and applicationDidFinishLaunching. Specific examples cover the common cases for each task area, matching anchor 5; the few one-line fragments (e.g. AppImpression(compactJWS:)) correctly show API shape in context.

Workflow Clarity

The body is clearly sequenced by role and flow (publisher setup, advertiser setup, impressions, postbacks, conversion values, re-engagement) with do/catch error handling on every network-adjacent call, a Common Mistakes table for error recovery, and a 12-item Review Checklist serving as explicit validation checkpoints. It matches anchor 5's "checklists for complex processes"; the destructive/batch cap does not apply since this is configuration guidance with validation present.

Progressive Disclosure

The body is a well-structured overview that pushes detail to exactly one clearly signaled reference file, references/adattributionkit-patterns.md, cited at point of need (JWS generation, window matrix, tier matrix) with its contents enumerated in the References section. The reference file exists and contains the promised material (postback verification, server handling, testing, SKAdNetwork migration), one level deep with no nested indirection — anchor 5.

Specificity

Lists multiple specific concrete actions with comprehensive coverage: "registering ad impressions, handling attribution postbacks, updating conversion values, implementing re-engagement attribution, configuring publisher or advertiser apps, or replacing SKAdNetwork". It exceeds anchor 4 because there are no meaningful coverage gaps for the AdAttributionKit domain, and is not below because every action named is concrete rather than generic.

Completeness

Explicitly answers both questions: "Measure ad effectiveness with privacy-preserving attribution using AdAttributionKit" (what, in third person) plus a "Use when..." clause with concrete trigger phrases (when). Matches the anchor-5 structure exactly; not score 4 because the when-clause is explicit and specific rather than merely present.

Trigger Term Quality

Comprehensive natural terminology a user in this domain would actually say: "ad impressions", "attribution postbacks", "conversion values", "re-engagement attribution", "publisher or advertiser apps", "SKAdNetwork", "AdAttributionKit", "ad measurement". Includes the migration synonym (SKAdNetwork replacement), so it fits anchor 5 rather than anchor 4's "a few natural terms missing".

Distinctiveness Conflict Risk

Clear niche tied to a named Apple framework with distinct triggers (postbacks, conversion values, re-engagement, SKAdNetwork migration). The only overlap term, SKAdNetwork, is an intentional migration trigger that correctly routes users of the older API here, so conflict risk is minimal and it fits anchor 5.