The body is lean and does not explain concepts Claude already knows (no primer on prediction markets or baskets); each Guardrail, Mode, and Output Contract section earns its place. Not a 2 because there is no unnecessary concept explanation or padding beyond a mild restatement of purpose.

Each comparison mode gives concrete, specific numbered guidance ("Map each underlier to claims, sources, uncertainties, and stale assumptions"; "Return aligned signals, conflicting signals, and missing research") plus a copy-ready Output Contract structure; absence of code is not penalized for an instruction-only skill since the guidance is actionable.

Each mode is a clearly sequenced numbered workflow and the Output Contract gives an ordered checklist; the skill is explicitly read-only and non-destructive, so the destructive/batch validation cap does not apply.

A simple, single-purpose skill with well-organized sections (Guardrails, Comparison Modes, Output Contract) and no need for external bundle references, matching the rubric's simple-skill allowance; no nested references exist.

Lists multiple concrete actions ("Compare Itô prediction-market baskets against a user's knowledge base, portfolio notes, financial context, watchlist, or research thesis" and "gap analysis") spanning several comparison targets, matching the multi-action anchor.

States what (compare baskets against knowledge base/portfolio/financial context/watchlist/thesis) and when via an explicit "Use for read-only basket comparison and gap analysis" trigger clause, so it is not capped at 2.

Covers natural terms a user would say — "prediction-market baskets", "knowledge base", "portfolio notes", "watchlist", "research thesis", "basket comparison", "gap analysis" — rather than jargon.

The "Itô prediction-market baskets" niche with read-only, no-advice framing is a clear, distinct trigger set unlikely to fire for unrelated skills.