Close the defense-in-depth gap flagged after iter 6: chapter, magazine,
newspaper, social_media, podcast, and video exemplars had ZERO applicable
linter rules, so their 100% linter pass rate was trivially true. Every
exemplar now has 3-6 structural rules firing.
Bump LINTER_VERSION to v0.3.0. Per harness discipline, this invalidates
prior run logs' scores for cross-version comparison (they stay in the
log as history). The re-baseline run still scores scalar 1.000, canary
1.000 on all 14 exemplars — formatter was already producing output that
matches the new structural conventions, so tightening the linter didn't
surface any regressions.
New rules (12):
- chapter_book_title_italicized
- chapter_in_book_marker
- magazine_name_italicized
- newspaper_name_italicized
- periodical_comma_before_date (magazine + newspaper; not journal)
- social_media_post_quoted
- social_media_platform_comma_date
- podcast_series_italicized
- podcast_episode_quoted
- podcast_format_label
- video_title_quoted (in quotes, NOT italicized)
- video_format_label
Extended:
- article_title_quoted now covers journal, magazine, newspaper,
and accepts ?/! as terminal punctuation
Each rule has a positive + negative unit test with the CMOS/Purdue source
cited in the docstring. Tests: 48 → 78 (30 new).
Per-exemplar applicable-rule counts after this change:
book 4 journal 5-6 web 3
chapter 4 magazine 5 social 4
podcast 5 video 4 newspaper 5
Four-iteration sweep over the 14-exemplar corpus, driven by loop
failures at each step. Scalar progression:
iter 3 (v0 prompt, 14 exemplars) → 0.842
iter 4 (+rules 13-23) → 0.951
iter 5 (+rules 24-25) → 0.988
iter 6 (+rule 26, rule 12 refined) → 1.000 canary 1.000
New SYSTEM_PROMPT rules:
13. Drop chapter page range from bibliography (CMOS 18 change from 17).
14. Use full canonical publisher names — no "U of Chicago Press" etc.
15. Do not comma-invert non-Western family-first names (Liu Xinwu,
Murakami Haruki).
16. Author threshold: up to 6 listed; 7+ → first 3 + "et al." with full
given names when source provides them.
17. Expand abbreviated newspaper names (NYT → New York Times); drop
leading "The" from newspaper/magazine names; use comma between
italicized name and date.
18. E-book format: "Kindle." not "Kindle edition."
19. Database indicator: just the name, not "Accessed via X".
20. Social media: preserve original casing of post content; comma
between Platform and Date.
21. Podcast: series italicized, episode in quotes, preserve
Season/episode/duration.
22. Video / TED Talk: preserve venue, date, Video label, duration, URL.
23. URLs preserved verbatim including "www." subdomain when present.
24. CMOS 9.61 inclusive-number elision for page ranges: 1818–59 not
1818–1859; 101–8; 1100–1113; 1496–1504.
25. Preserve terminal punctuation (? !) inside titles.
26. Edition indicators abbreviated: "2nd ed." not "Second edition".
Also scoped rule 12 (date qualifier preservation) to web-page sources
only — podcasts and videos use bare dates, so "Released September 13,
2022" should emit as just "September 13, 2022".
Also refined three messy inputs (podcast, social media, video) to
include "www." in the URL, and the snyder messy input to explicitly
list 7 authors so the et-al threshold is unambiguous to the formatter.
Add 11 new exemplars pulled verbatim from the CMOS official quick guide
(chicagomanualofstyle.org/tools_citationguide/citation-guide-1.html):
- book_two_authors_binder: Binder & Kidder (two-author book)
- book_chapter_doyle: Doyle in Marks & Parkin (chapter in edited volume,
no page range per CMOS 18)
- book_translated_liu: Liu Xinwu, trans. Tiang (translated book, non-
Western name not comma-inverted)
- book_edition_borel: Borel, 2nd ed. via EBSCOhost (edition + database)
- book_ebook_roy: Roy, Kindle format
- journal_many_authors_snyder: 7 authors in PLOS ONE, exercises the
CMOS 18 "first 3 + et al." threshold and article-ID page format
- magazine_mead: New Yorker (tests leading-"The" drop)
- newspaper_blum: NYT with URL (tests abbreviation expansion)
- social_media_cmos_facebook: Facebook post with case preservation
- podcast_ober: Pushkin podcast with season/episode/duration
- video_cowan_ted: TED Talk with venue and duration
Every exemplar is marked canary=true — we want byte-exact regression
detection on all of them. Source citations and CMOS rule justifications
are in the TOML doc comments.
All 14 canonical outputs lint clean under LINTER_VERSION v0.2.0. The
harness will score them in the following commit.
First real loop iteration found that GPT-5 silently drops date qualifiers
("Effective", "Published", "Accessed", etc.) when reformatting web
sources. The field diff was satisfied because the canonical date field
did not include the qualifier, but the canary exact-match axis caught
the regression.
Two fixes, per the canary-upstream policy:
1. Tighten the web-page exemplar canonical: date field now includes the
"Effective" qualifier so the field diff will catch future regressions
without relying on the canary.
2. Add SYSTEM_PROMPT rule 12 instructing the formatter to preserve
semantic date qualifiers from the input.
After these fixes: scalar 1.000, canary exact-match 1.000 on all three
seed exemplars.
GPT-5 and the o-series reject temperature=0 with a 400 BadRequestError —
only the default (1) is supported for reasoning models. Add an
_is_reasoning_model helper and pass temperature only when the model name
does not start with gpt-5/o1/o3/o4. Determinism on reasoning models is a
property of the architecture, not a parameter.
Discovered on the first real LLM run against the seed exemplars.
Initial phase-1 baseline of the karpathy/autoresearch-style loop.
The formatter module is the inner-loop artifact; parser and linter
are infra. The linter carries a LINTER_VERSION hash (v0.2.0) that
will force a re-baseline on any rule change.
Components:
- harness/diff.py: case-sensitive field-level substring diff
- harness/score.py: three-axis scoring (field, linter, canary exact)
- src/cmos/linter.py: 9 CMOS 18 structural rules, each Purdue/CMOS cited
- src/cmos/parser.py: locate ## Bibliography section, split entries
- src/cmos/formatter.py: prompt + OpenAI call with caller injection
- src/cmos/cli.py: cmos format path/to/draft.md
- scripts/run_loop.py: loop runner with --fake mode for no-API runs
- exemplars/: 3 canary seed exemplars (book, journal w/DOI, web),
sourced from chicagomanualofstyle.org quick guide
Tests: 48 passing. Fake-mode baseline scalar = 0.000 on the 3 seed
exemplars (identity caller fails the linter on every rule). This is
the floor the real GPT-5 formatter needs to improve from.
cmos dev