Conciseness

The body is a lean ~60-line router with zero concept explanations and no padding — every sentence directs action ("Read manifest.yaml", "Do not read every fragment in static/", "Reuse already loaded guidance on follow-ups"). It assumes Claude's competence and every token earns its place.

Actionability

Gives concrete, executable direction: named file paths, a six-value paper_type taxonomy with detection criteria, a five-priority application order, an on-demand table mapping tasks to specific reference files, and a named audit script and report path. Not 5 because the audit script is never shown with its invocation command or arguments, and steps like the Terminology Ledger and the classification announcement lack a concrete example.

Workflow Clarity

A clear five-step numbered sequence with an explicit validation feedback loop: "run scripts/audit_pptx_quality.py. Treat high-severity findings as blockers, revise the deck, then re-run the audit and record the final result in output/qa_report.md" — an audit→fix→re-run loop, plus a mid-process checkpoint ("State the detected value in one short line... so they can correct you cheaply") and an edit-path rule to re-audit before delivery.

Progressive Disclosure

The router design is good — overview-only body, one-level-deep references, an explicit on-demand table — and all files under references/ and scripts/ exist and match their descriptions. But the primary routing targets the body instructs to read (manifest.yaml, core/principles.md, core/toolchain.md, core/workflow.md, core/output-and-quality.md, static/ fragments, ../nature-shared/core/terminology-ledger.md) are absent from the provided bundle, so step 1 dead-ends; scored against the actual bundle structure this is more than the minor gap of a 4.

Specificity

Concrete actions are named — "Create or improve a Chinese academic PPTX", "from a scientific paper or research reading notes", "with source figures and speaker notes" — with a defined deliverable and inputs. It stops short of 5 because the described capability surface is narrower than the skill's actual scope (no mention of figure extraction, terminology consistency, or the QA audit loop).

Completeness

Explicitly answers both questions: what ("Create or improve a Chinese academic PPTX from a scientific paper or research reading notes, with source figures and speaker notes") and when ("Use for 论文做PPT、文献汇报、组会PPT and paper-based conference or defense presentations") with concrete trigger phrases, matching the top anchor's pattern. Not 4 because the 'when' clause is already explicit and specific, not merely present.

Trigger Term Quality

Includes natural trigger phrases a Chinese-speaking user would actually say — "论文做PPT、文献汇报、组会PPT" — plus "paper-based conference or defense presentations" and "research reading notes". Not 5 because common variations like 答辩PPT, 学术汇报, journal club, and the .pptx extension as a trigger term are missing; clearly above 3 since real user phrasings are present, not just domain labels.

Distinctiveness Conflict Risk

It carves a clear niche — Chinese-language academic decks built from scientific papers — with distinct triggers (文献汇报, 组会PPT, defense presentations), so it is unlikely to fire for generic document or presentation skills. Matches the anchor-5 example's clarity of niche.