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Get Started Free →Use when formatting citations and a reference list for an American Journal of Sociology manuscript: apply AJS's author-date house style (full given names, headline-case quoted article titles, Volume (Issue): pages, in-text (Author Year) with no comma, 'et al.' only at four or more authors, 3-em-dash for a repeated author) — which cheaper models do not do by default.
.claude/skills/ajs-author-date-references/SKILL.md| Model | Eval pass | Runs |
|---|---|---|
| gemini-3.6-flash | 89% | 9 |
| Model | Lift | Δ tokens | Δ turns | Cases | Verified |
|---|---|---|---|---|---|
| gemini-3.6-flashbest | +23% | +139% | 0% | 22 | 52d ago |
| gemini-3.5-flash | pending re-run | — | |||
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-05 | ✗→✓ | ▲ Improved | 215% | 0% |
| case-08 | ✗→✓ | ▲ Improved | 127% | 0% |
| case-12 | ✗→✓ | ▲ Improved | 245% | 0% |
| case-15 | ✗→✓ | ▲ Improved | 193% | 0% |
| case-16 | ✗→✓ | ▲ Improved | 5% | 0% |
Enforces the American Journal of Sociology (AJS) author-date house citation style — the same system as the Chicago Manual of Style author-date and the AJS CSL style shipped in reference managers. Apply to every in-text citation and every reference-list entry in a manuscript. These tokens are arbitrary and non-default; follow them exactly, do not substitute APA, MLA, or a numbered style.
Each reference-list entry begins with the author(s), then the four-digit year, then the title. The year comes right after the author name, not at the end of the entry, and it is not wrapped in parentheses. Author(s). Year. Title. …
Give each author's full given name(s), never initials only (Peter Bearman, not P. Bearman). Only the first author is inverted to Last, First; every later author stays in normal First Last order.
Bearman, Peter S.Bearman, Peter S., and James Moody.Bearman, Peter S., James Moody, and Katherine Stovel.Join authors with the spelled-out word and (never &), and always put a comma before the and, even with just two authors (Blau, Peter M., and Otis Dudley Duncan.).
An article or chapter title goes in double quotation marks and uses headline (title) case — capitalize the first and last words and all principal words; lowercase articles (a, an, the), coordinating conjunctions, and short prepositions. The closing period sits inside the closing quotation mark. "Chains of Affection: The Structure of Adolescent Romantic and Sexual Networks."
A book title and a journal (periodical) name are set in italics with no quotation marks, in headline case.
Volume (Issue): pagesFor a journal article, after the italic journal name give Volume (Issue): FirstPage–LastPage — volume, a space, the issue in parentheses, a colon and one space, then the inclusive page range joined by an en dash (–), not a hyphen. Condense the closing page number per Chicago (1455–91, not 1455–1491; but keep both digits below 100, 44–91). American Journal of Sociology 110 (1): 44–91.
A chapter in an edited book is Author. Year. "Chapter Title." Pp. X–Y in Book Title, edited by First Last. City: Publisher. Note the capital Pp., the word in, the italic book title, and edited by with the editor in normal First Last order.
City: PublisherA whole book ends with City: Publisher. (place, colon-space, publisher). Include the two-letter state only for a lesser-known city (Cambridge, MA: Belknap Press.).
(Author Year), no commaAn in-text citation is the author surname(s) and year in parentheses with a space and no comma between them: (Bearman 2004). A page reference adds a comma before the page: (Bearman 2004, 52). Separate multiple sources with a semicolon: (Blau and Duncan 1967; Bearman 2004).
In text, name all authors for works with one, two, or three authors ((Bearman, Moody, and Stovel 2004)). Use first author + et al. only for four or more authors ((DiMaggio et al. 2001)). Do not switch to et al. at three authors.
When consecutive reference-list entries have the same author(s), replace the repeated name in the later entry with a 3-em dash (———) followed by a period, then the year. Entries by one author are ordered by year, earliest first.
R1/R2/R4/R6, journal article, three authors.
Bearman, P., Moody, J., & Stovel, K. (2004). Chains of affection: The structure of adolescent romantic and sexual networks. American Journal of Sociology, 110(1), 44-91.Bearman, Peter S., James Moody, and Katherine Stovel. 2004. "Chains of Affection: The Structure of Adolescent Romantic and Sexual Networks." American Journal of Sociology 110 (1): 44–91.R5/R8, book, two authors.
Blau, P. M., & Duncan, O. D. (1967). The American occupational structure. Wiley.Blau, Peter M., and Otis Dudley Duncan. 1967. The American Occupational Structure. New York: Wiley.R7, book chapter.
Granovetter, M. (1983). The strength of weak ties: A network theory revisited. In R. Collins (Ed.), Sociological Theory (pp. 201-233). Jossey-Bass.Granovetter, Mark. 1983. "The Strength of Weak Ties: A Network Theory Revisited." Pp. 201–33 in Sociological Theory, edited by Randall Collins. San Francisco: Jossey-Bass.R9, in-text with page.
(Bearman, 2004, p. 52)(Bearman 2004, 52)R10, four-author in-text.
(Bearman et al. 2004) for a 3-author work.(Bearman, Moody, and Stovel 2004) — name all three; reserve et al. for four+.R11, repeated author.
Coleman, James S. 1990. Foundations of Social Theory. …———. 1990. Foundations of Social Theory. Cambridge, MA: Belknap Press.
Volume: pages with the colon directly after the volume(American Sociological Review 51: 273–86.).
authors in full; only the in-text form collapses to et al. (R10).
("Culture in Action: Symbols and Strategies.").
[1922] 1978 — the bracketed year first.
string; a different set of co-authors is spelled out again.
&. DO use and with a comma before it (R3).double quotes (R4).
Volume(Issue), pages. DO write Volume (Issue): pages with an en dash (R6).(Author, Year). DO write (Author Year) with no comma (R9).et al. at three authors. DO name all three; et al. starts at four (R10).(Author, Year), Volume(Issue), pages.et al. in text for a three-author work.Year right after author? · full given names, first author inverted only? · and with a comma before it? · article title in double quotes + headline case? · journal/book in italics? · Volume (Issue): pages with an en dash? · chapter as Pp. X–Y in …, edited by …? · in-text (Author Year) with no comma? · et al. only at four+ authors? · 3-em dash for a repeated author?
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | pass→pass | 13,218 | 6,393 | -52% | 1 | 1 | 0% | 2,683 | 3,672 | +37% | 0 | 0 | — |
case-02 | fail→fail | 8,784 | 3,974 | -55% | 1 | 1 | 0% | 1,781 | 3,084 | +73% | 0 | 0 | — |
case-03 | fail→fail | 7,944 | 5,622 | -29% | 1 | 1 | 0% | 1,527 | 3,426 | +124% | 0 | 0 | — |
case-04 | fail→fail | 7,926 | 6,646 | -16% | 1 | 1 | 0% | 1,879 | 3,668 | +95% | 0 | 0 | — |
case-05 | fail→pass | 5,061 | 3,029 | -40% | 1 | 1 | 0% | 897 | 2,830 | +215% | 0 | 0 | — |
case-06 | fail→fail | 7,943 | 5,188 | -35% | 1 | 1 | 0% | 1,498 | 3,322 | +122% | 0 | 0 | — |
case-07 | fail→fail | 4,073 | 1,608 | -61% | 1 | 1 | 0% | 717 | 2,540 | +254% | 0 | 0 | — |
case-08 | fail→pass | 6,117 | 2,403 | -61% | 1 | 1 | 0% | 1,162 | 2,638 | +127% | 0 | 0 | — |
case-09 | fail→fail | 5,459 | 2,458 | -55% | 1 | 1 | 0% | 1,204 | 2,828 | +135% | 0 | 0 | — |
case-10 | fail→fail | 6,233 | 2,575 | -59% | 1 | 1 | 0% | 1,036 | 2,750 | +165% | 0 | 0 | — |
case-11 | fail→fail | 5,877 | 2,516 | -57% | 1 | 1 | 0% | 1,029 | 2,669 | +159% | 0 | 0 | — |
case-12 | fail→pass | 5,024 | 4,776 | -5% | 1 | 1 | 0% | 907 | 3,129 | +245% | 0 | 0 | — |
case-13 | fail→fail | 7,074 | 3,208 | -55% | 1 | 1 | 0% | 1,336 | 2,987 | +124% | 0 | 0 | — |
case-14 | fail→fail | 9,020 | 4,245 | -53% | 1 | 1 | 0% | 1,485 | 3,026 | +104% | 0 | 0 | — |
case-15 | fail→pass | 6,321 | 4,518 | -29% | 1 | 1 | 0% | 1,070 | 3,135 | +193% | 0 | 0 | — |
case-16 | fail→pass | 15,553 | 4,550 | -71% | 1 | 1 | 0% | 2,985 | 3,123 | +5% | 0 | 0 | — |
case-17 | fail→fail | 4,168 | 2,451 | -41% | 1 | 1 | 0% | 711 | 2,679 | +277% | 0 | 0 | — |
case-18 | fail→fail | 7,067 | 2,680 | -62% | 1 | 1 | 0% | 1,223 | 2,707 | +121% | 0 | 0 | — |
case-19 | fail→fail | 3,679 | 3,116 | -15% | 1 | 1 | 0% | 740 | 2,800 | +278% | 0 | 0 | — |
case-20 | fail→fail | 2,561 | 6,451 | +152% | 1 | 1 | 0% | 347 | 3,517 | +914% | 0 | 0 | — |
case-21 | fail→fail | 6,312 | 12,973 | +106% | 1 | 1 | 0% | 1,130 | 4,695 | +315% | 0 | 0 | — |
case-22 | fail→fail | 8,718 | 9,502 | +9% | 1 | 1 | 0% | 1,635 | 4,098 | +151% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +23 percentage points is the difference between those two pass rates over the 22 comparable cases. 2 cases got worse with the skill loaded, and they are included in that figure.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
| Model | Method | Date | Lift |
|---|---|---|---|
| gemini-3.5-flash | verified | 7/9/2026 | +88% |
Other measured skills in the registry, with their headline benchmark lift.