Lists multiple specific concrete actions: writing scientific manuscripts, two-stage outline-to-prose process, IMRAD structure, citations in specific formats (APA/AMA/Vancouver), figures/tables, reporting guidelines (CONSORT/STROBE/PRISMA). Very detailed about what it does.

The 'what' is thoroughly covered with specific actions and formats. However, there is no explicit 'Use when...' clause or equivalent trigger guidance. The description implies when to use it (research papers, journal submissions) but does not explicitly state when Claude should select this skill, which caps this at 2 per the rubric.

Includes strong natural keywords users would say: 'scientific manuscripts', 'research papers', 'journal submissions', 'IMRAD', 'citations', 'APA', 'AMA', 'Vancouver', 'CONSORT', 'STROBE', 'PRISMA', 'figures/tables'. These cover many natural terms a researcher would use.

Highly distinctive with a clear niche: scientific manuscript writing with specific citation formats, reporting guidelines, and IMRAD structure. Unlikely to conflict with general writing or document skills due to the domain-specific terminology and narrow focus.

Extremely verbose at ~500+ lines. Extensively explains concepts Claude already knows (what IMRAD is, what bar graphs are for, basic writing principles like 'use precise language'). The field-specific terminology section alone is massive and largely teaches Claude things it already knows (gene nomenclature conventions, SI units, person-first language). Enormous amounts of padding throughout.

Provides some concrete examples (the outline-to-prose conversion, LaTeX code snippets, bash commands for figure generation), but much of the content is descriptive rather than instructive. Many sections read like textbook explanations rather than executable guidance. The two-stage writing process example is genuinely useful, but most other sections are advisory rather than actionable.

The manuscript development workflow (Stages 1-4) provides a clear sequence, and the two-stage writing process is well-articulated. However, there are no validation checkpoints or feedback loops—no steps like 'verify citations are valid before proceeding' or 'check reporting guideline compliance before finalizing.' For a skill involving complex multi-step document production, the absence of explicit verification steps is a gap.

References to external files are well-signaled (references/imrad_structure.md, references/citation_styles.md, etc.), which is good. However, the SKILL.md itself is monolithic—it inlines enormous amounts of content that should live in those reference files (the entire field-specific terminology section, detailed LaTeX formatting examples, extensive figure generation guidance). The main file should be a concise overview pointing to these details, not containing them.