Conciseness

The body is dense and assumes Ebitengine API familiarity with no basic-concept padding — every section delivers decision-relevant guidance and executable code. It is not a 5 because a few sentences restate the core principle ('A filter change cannot repair a low-resolution rasterization stage' repeats the opening theme, and several 'not a requirement for every game'-style qualifiers could be trimmed).

Actionability

Provides two complete, executable Go code blocks (the LayoutF implementation including the required panic-stub Layout, and text/v2 glyph drawing), exact formulas ('s = min(W/w, H/h)' and input inverse mapping 'x = (screenX-offsetX)/s'), and named APIs (FilterNearest, FilterPixelated, FilterLinear, FinalScreenDrawer) covering the common cases. This matches the 5 anchor: copy-adaptable code plus specific guidance across the common scenarios.

Workflow Clarity

Sections follow a coherent diagnostic sequence (screen resolution → layer placement → text rasterization → sampling → input mapping → verification), and the final section provides explicit validation checkpoints ('Check standard and high-density displays, fractional scaling, resizing...', 'Compile application changes against the target Ebitengine version'). It is not a 5 because the workflow is organized as thematic sections rather than an explicit ordered procedure with feedback loops, leaving minor checkpoint gaps in the middle sections.

Progressive Disclosure

No bundle files exist, so the skill is a single well-sectioned SKILL.md; the References section points one level deep to clearly labeled engine-source paths and one external guide ('UI sizing and game-relative text scaling'). The ~155-line body is borderline for full inlining — a sampling-filter or verification checklist could be split out — placing it just below the 5 anchor's ideal content split and above the 3 anchor's 'content that should be separate is inline'.

Specificity

Names several concrete actions and subtopics ('changing layout, text, UI, image scaling', 'diagnosing blurry rendering', 'font rasterization, sampling filters, coordinate transforms') with comprehensive domain coverage. It falls short of the 5 anchor only because the 'what' leans toward topic listing rather than the dense action-verb enumeration of the top anchor, and it is clearly above the 'minor gaps' of 4... between 4 and 5, matching 4's coverage with slightly less action-verb density.

Completeness

Explicitly answers 'when' with concrete trigger clauses ('Use when creating an Ebitengine application or changing layout, text, UI, image scaling, or final presentation, and when diagnosing blurry rendering') and 'what' with specific scope ('Covers display-resolution rendering, font rasterization, sampling filters, coordinate transforms, and optional mixed-resolution layers'). Both are explicit with concrete triggers, matching the 5 anchor; the 4 anchor requires a weaker or less specific 'when', which does not apply.

Trigger Term Quality

Includes natural, user-sayable phrases like 'blurry rendering', 'pixel-art games', 'sharp UI', 'layout', 'text', and 'image scaling' alongside the domain keyword 'Ebitengine'. A few natural synonyms users might say ('fuzzy', 'crisp', 'Hi-DPI') are missing, placing it just below the comprehensive-synonyms anchor of 5 and clearly above the 3 anchor's 'some relevant keywords'.

Distinctiveness Conflict Risk

The description is anchored to a specific engine ('Ebitengine') with a clear niche (blurry rendering / resolution policy) and engine-specific trigger language, so it is clearly distinguishable from other skills with minimal conflict risk. It matches the 5 anchor's 'clear niche with distinct triggers'.