Agent Skills
› brycewang-stanford/Awesome-Journal-Skills
› pnas-writing
pnas-writing
GitHub用于规范PNAS论文正文结构、控制篇幅及确定分类关键词。确保遵循PNAS特有格式（如Methods保留在主文本），按逻辑组织结果，并协助完成投稿所需的学科分类与关键词选择。
Trigger Scenarios
稿件结构不符合PNAS顺序或不清楚
材料与方法缺失或被错误移至补充材料
文章超出长度预算
未选择学科分类或关键词
Install
npx skills add brycewang-stanford/Awesome-Journal-Skills --skill pnas-writing -g -y
SKILL.md
Frontmatter
{
"name": "pnas-writing",
"description": "Use to structure a PNAS main text and hold its length — Title, Significance Statement, Abstract, Introduction, Results, Discussion, in-text Materials and Methods, references — and to choose the required Classification (Biological\/Physical\/Social Sciences + minor subject) and keywords at submission."
}
Main-Text Writing & Structure (pnas-writing)
When to trigger
- The manuscript structure is unclear or out of PNAS order.
- Materials and Methods are missing, or someone wants to push them out of the main text.
- The paper is over the length budget.
- You have not chosen a Classification (major + minor) or keywords.
- The Results read like a lab notebook instead of an argument.
PNAS main-text order
A PNAS research article runs, in order:
- Title — declarative, specific, parseable by a non-specialist.
- Author list & affiliations.
- Significance Statement — ≤120 words (
pnas-significance); submitted separately but part of the article. - Abstract — ~250-word single paragraph (
pnas-abstract). - Introduction — the gap and why it matters broadly; end on what you found.
- Results — argument-ordered (below).
- Discussion — interpretation and broader significance; PNAS also permits a combined "Results and Discussion."
- Materials and Methods — kept in the main text (see below).
- Acknowledgments, data availability, references.
Materials and Methods stays in-text (a key PNAS difference)
PNAS keeps a Materials and Methods section in the main text — unlike Cell or Science Reports, which push methods to supplements/endmatter. Provide enough method in the body to evaluate and reproduce the work; longer protocols and extended data go to SI Appendix. Do not strip the main-text Methods to chase a word count — move detail to SI instead.
Length budget
- Research articles have length limits (commonly framed as up to ~6 journal pages, roughly on the order of ~8 figures/tables and a corresponding word/character budget). PNAS counts the whole package — abstract, main text, figures/tables, and references — against the page/character allowance.
- Confirm the current word/character/page caps and the figure-table allowance in PNAS author guidelines before finalizing; treat any number here as a working target, not a rule.
- Over-length material (extended methods, supporting figures/tables, supplementary text) → SI Appendix.
Classification + keywords (required at submission)
PNAS requires a Classification for every research article:
- Major category — exactly one division: Biological Sciences, Physical Sciences, or Social Sciences.
- Minor subject area: one (sometimes a permitted second) subject within that division (e.g., Biological Sciences → Genetics; Physical Sciences → Applied Physical Sciences; Social Sciences → Economic Sciences). Pick from the PNAS list.
- Keywords: a short set (commonly up to ~5) for indexing.
Choose the classification that matches the handling and review community you want, consistent with the venue call in pnas-fit and the editor choice in pnas-track/pnas-submission.
Structure as argument, not chronology
Order the Results by the logic of the claim, not the order experiments were run:
- Establish the phenomenon (the headline result).
- Rule out the obvious alternative explanations.
- Show the mechanism / generality.
- Demonstrate the broad implication.
Each Results paragraph: claim sentence first, then evidence (figure callout + numbers), then inference.
Cross-references
- Main figures/tables: "Fig. 1", "Table 1".
- Supporting Information: "SI Appendix, Fig. S1 / Table S1"; datasets as "Dataset S1".
Output format
【Order check】 Title / authors / Significance / Abstract / Intro / Results / Discussion / Materials and Methods / refs — gaps?
【Methods location】 in main text? yes (FIX if missing) — extended detail in SI Appendix?
【Length】 package within budget? N vs cap (confirm guidelines)
【Classification】 major (Bio/Phys/Social) + minor subject chosen? + keywords (≤~5)?
【Results order】 argument-ordered, claim-first? yes/no
【Items in main vs SI】 main: [...] / SI Appendix: [...]
【Next】 pnas-figures
Anti-patterns
- Do not delete the main-text Materials and Methods to fit a word count — move detail to SI Appendix.
- Do not omit the Classification or keywords; they are required at submission.
- Do not structure Results chronologically when a logical order is clearer.
- Do not import a Science Report's "Methods-in-supplement" structure — PNAS keeps Methods in-text.
- Do not treat the Significance Statement or abstract as optional sections.
Version History
- 1839142 Current 2026-07-05 14:11
