Host the joint walkthrough here, and hand nomologR the whole handoff

NEWS.md

@@ -44,6 +44,18 @@ schema and every handoff are unchanged.
   `item_evidence$scale` names. A test holds the sort, rating, and congruence
   workflows to it, and checks that each refuses an item with two targets.
 
+## The joint walkthrough lives here
+
+* `vignette("one-item-set-both-stages")` is the joint walkthrough for
+  contentvalidR and nomologR, as the maintainer decided for the joint 1.0.
+  It now says so, passes the handoff itself to `nomo_screen()` and
+  `nomo_run()` rather than `h$items`, and links to the section of the
+  nomologR guided workflow that continues from content review. Two stale
+  sentences are corrected. The handoff reader in nomologR, which the vignette
+  called future work, has shipped. And nomologR starts from the same handoff
+  but simulates its own responses, so its screening numbers differ from
+  these.
+
 # contentvalidR 0.9.0
 
 Ninth public release. v0.9.0 is about how the package presents itself before

ROADMAP.md

@@ -830,11 +830,11 @@ reads no handoffs and takes no part in the joint 1.0.
         candidate, so neither README describes a 1.x before one exists.
   - [ ] one handoff example shown in both READMEs, regenerated from
         contentvalidR's release candidate.
-  - [ ] the joint walkthrough lives in one package, and the other links to
-        it. Recommended, and acceptable to nomologR: this package's
-        `vignette("one-item-set-both-stages")`, linking to nomologR's
-        guided-workflow article for the empirical side. The maintainer
-        decides.
+  - [x] the joint walkthrough lives in one package, and the other links to
+        it. Decided by the maintainer on 2026-09-27: it lives here, as
+        `vignette("one-item-set-both-stages")`, which links to nomologR's
+        guided-workflow article for the empirical stage. nomologR has agreed
+        to link its article back to it.
   - [ ] the release notes link each other.
 - Three handoff clarifications nomologR asked for before schema 1 becomes a
   1.0 promise, approved on 2026-09-27. None changes the schema:

vignettes/one-item-set-both-stages.Rmd

@@ -30,6 +30,12 @@ Nothing here is a real instrument or a real sample. The advantage of simulated
 data is that the right answer is known in advance, so you can check whether
 each stage found what was actually put there.
 
+This is the joint walkthrough for `contentvalidR` and its partner package
+`nomologR`, which handles the empirical stage. The empirical steps below use
+base R, so the whole vignette runs with `contentvalidR` alone. Where the
+handoff leaves this package, the walkthrough shows the `nomologR` calls that
+pick it up.
+
 ## The construct and the items
 
 The construct is *Study Persistence*: the tendency to keep working on academic
@@ -281,20 +287,26 @@ about the item's wording predicts that, and no panel could have. Whether the
 difference matters is a measurement-invariance question, which belongs to the
 empirical stage.
 
-The handoff is what carries the decision into that stage. Its `items` are the
-item names to screen and its `scales` are the subscales to form, both in the
-shape a downstream package needs. `nomologR` is one such package; it is not a
-dependency of this one, so the call below is shown rather than run:
+The handoff is what carries the decision into that stage. Pass the handoff
+itself rather than `h$items`, so that the held-back items, their reasons, the
+keying, and the response scale travel with the names. `nomologR`, the partner
+package for the empirical stage, reads it that way. It is not a dependency of
+this package, so the calls below are shown rather than run:
 
 ```{r nomologr, eval=FALSE}
 library(nomologR)
 
-nomo_screen(responses, items = h$items)
+# Screen the carried items, using the keying declared at content review.
+screened <- nomo_screen(responses, items = h)
+
+# Form the subscales content review defined, and run the empirical stage.
+run <- nomo_run(responses, scales = h)
 ```
 
-Reading the handoff object directly, rather than taking `h$items` out of it, is
-tracked on
-[nomologR#46](https://github.com/JUhalt/nomologR/issues/46).
+`nomologR`'s guided workflow continues from here, in its section
+[Starting from content review](https://juhalt.github.io/nomologR/articles/guided-workflow.html#starting-from-content-review):
+screening, the measurement model, and a report that opens with the content
+review.
 
 ## The moral, stated plainly
 
@@ -322,9 +334,11 @@ carries the evidence forward rather than just the surviving names.
 Every file used here is generated by `data-raw/build-walkthrough-data.R` in the
 package sources, which uses only base R and is deterministic. It states the
 full generating model: the two-factor structure, every loading, the factor
-correlation, the response thresholds, and the single cohort shift. `nomologR`
-mirrors the response file from the same script, so both packages show the same
-numbers.
+correlation, the response thresholds, and the single cohort shift.
+`nomologR`'s guided workflow starts from the same handoff, which it ships as a
+file, so the items, decisions, and keying match between the two packages. Its
+responses are simulated separately, so its screening numbers are not the ones
+shown here.
 
 ## References