Conciseness

The body is efficient and assumes Claude's competence — it does not explain what a webshop or product page is — with only minor redundancy in repeated '10 slots' examples that could be trimmed, fitting the 'efficient with minor over-explanation' anchor rather than the fully lean 5.

Actionability

The Core Logic gives concrete if/then branches with real action examples (click '10 slots', 'Back to Search', 'Buy Now'), but the 'Output Format' section promises 'Your response must be in this exact format:' and then provides nothing — a missing key detail that leaves the guidance incomplete, matching the 'some concrete guidance but incomplete' anchor.

Workflow Clarity

Steps are clearly sequenced (Parse → Examine → Decision & Action) with implicit validation checkpoints (price-vs-budget check, required-attribute check) and a fallback branch (Back to Search), but the checkpoints are implicit rather than explicit error-recovery loops, so it sits at 4 rather than 5.

Progressive Disclosure

The body is organized into clear sections (Purpose, Input, Core Logic, Output Format) but never signals or links the provided bundle files (references/action_guidelines.md, references/trajectory_example.md), and the crucial exact-action-syntax rules live only in an unreferenced file — matching 'some structure but references not clearly signaled'.

Specificity

Names the domain and several concrete actions — 'verify specific attributes or select options like size, color, or quantity', 'checking for '10 slots' option, price, material', 'select a required variant (e.g., click[10 slots])' — but coverage is narrow to a single product-inspection task, leaving minor gaps that keep it below a 5.

Completeness

Clearly answers 'what' (examines a product detail page to verify attributes/select options) and gives an explicit 'when' ('It is used after clicking on a product, to confirm that the item matches the user's needs'), but the trigger guidance is procedurally framed rather than a crisp 'Use when...' phrase with concrete triggers, so it is not a 5.

Trigger Term Quality

Good keyword coverage with concrete natural terms ('product detail page', 'size, color, or quantity', '10 slots', 'price, material', 'select options'), though a few common variations a user might phrase are absent.

Distinctiveness Conflict Risk

Scoped to a clear niche (webshop product-detail inspection/variant selection) with concrete triggers that distinguish it from generic navigation, though it has minor overlap risk with a closely related search-results navigation skill.