Refuse only a spelling that restates another, and drop item 93

AGENTS.md

@@ -20,7 +20,7 @@
   run are two ratchets, never compared with each other. A lower score blocks the merge
   even where it may be panel noise: fix what the seats name until the score rises.
 - Hard tabs. No comment by default; delete a restatement, a rationale, history, or a file preamble.
-- One spelling per result: reject the other at `New`, and let the error name the spelling to use.
+- A spelling that only restates another is rejected at `New`, and the error names the one to use.
 - Prose naming a source states what that source states: read the register's own field
   before paraphrasing it, and name the register you read before claiming none
   publishes a spelling.

README.md

@@ -958,8 +958,8 @@ Where the project is heading; the sections before Audience document what ships t
    5. `[SE]` selects one row of a table, and means that row wherever you write it.
    6. If two people could read a template differently, loading it fails, and the
       error shows how to write each meaning.
-   7. Each result has one way to write it. Any other way fails to load, and the error
-      shows the right one.
+   7. Each result has one obvious way to write it. A spelling that only restates another
+      fails to load, and the error shows the obvious one.
    8. When a clearer name turns up, it replaces the old one, even if that needs a new
       major version.
 6. **Mistakes are caught when the data loads, and the error says plainly what is

todo.md

@@ -79,7 +79,6 @@
 | 90 | 0.1.0 | decision | **Restructure the code into folders named for what they hold: the public API stays in the root package, and the implementation moves into `internal/` packages.** | 6 | 9 | 3 | 9 | 3.2, 3.4 | 13.9 |
 | 79 | 0.1.0 | decision | **Beside a `--data-path`, load in `New` the user's categories, the shipped ones they override or read, and the shipped ones whose reads reach an overridden one; load the rest on first reach.** | 6 | 6 | 7 | 8 | 13 | 12.9 |
 | 87 | 0.1.0 |  | **Split the README's last Records paragraph into one paragraph per rule, name the two shapes "either shape" means, and define or replace "a field hold".** | 1 | 2 | 4 | 6 | 12, 12.3 | 11.9 |
-| 93 | 0.1.0 | question | **Decide whether to refuse a field that only a `calc` reads and whose whole format is one reference, since a name spells the same pick.** | 3 | 3 | 3 | 5 | 5.7 | 10.2 |
 | 58 | 0.2.0 |  | **Ship prebuilt binaries, a container image, and packages for Homebrew, Scoop and the biggest Linux package managers, so the CLI needs no Go.** | 3 | 7 | 8 | 9 | 1.1, 7 | 29.2 |
 | 26 | 0.2.0 | defect | **Spell `sv_SE.personnummer` with the `+` Skatteverket uses from the year the holder turns 100, judged by a date the caller gives.** | 4 | 6 | 7 | 8 | 4 | 22.1 |
 | 81 | 0.2.0 | decision | **Refuse at load every `calc` operand not proven numeric and every divisor not proven nonzero, in a string column too.** | 4 | 4 | 6 | 8 | 6.1, 4 | 20.6 |
@@ -232,7 +231,7 @@ Shape: T = table, t = template, c = choice.
 - Deletes the token-order rules (`drawsApart`, `readFold`, `branches`, the pairwise replay), the expansion hold fence, `drawGroup`, the own-family fence and the cell-reference fences, and revises the decisions that point here. The remaining draw checks are names, paths through names, cycles and the repeat cap.
 - Fixes on the way: `{/sel}|{/sel}` panics out of `Fake` today where two draws land on rows whose cells select different rows of another table; it must render.
 - Rewrites the README's Computation, References, Draw group, Correlated fields, Linked tables, Names and "One draw, one spelling" sections; the Linked tables section says which pick's weights govern a family, since the bound row decides.
-- Keeps a name read once where no reference can stand, such as `{/n as k}{calc(k * 2)}`, loading. Widens the refusal of a name read once to every binding, a path into it or a reference path bound included, since `{n.x}` read once is then `{/ref.x}`, and deletes the names fence over draw groups and nested repeats (`checkUses`, `readsHeld`).
+- Keeps a name read once where no reference can stand, such as `{/score as s}{calc(s * 2)}`, loading. Widens the refusal of a name read once to every binding, a path into it or a reference path bound included, since `{n.x}` read once is then `{/ref.x}`, and deletes the names fence over draw groups and nested repeats (`checkUses`, `readsHeld`).
 - Say how a record's columns and a struct's tags read one pick, so the `first` and `sex` columns of one `sv_SE.person` record, or one struct's tags reading them, still describe one person.
 - Re-pin seeded output and `testdata/shipped_shape.txt` in their own commits; the CHANGELOG names the grammar change.
 
@@ -270,10 +269,6 @@ The decision "With only the shipped set, a category loads on the first call reac
 
 Needs item 4, which rewrites the draw-group rule this paragraph states. The last paragraph under Records, from "A record written only to emit columns" to the Decisions link, holds seven rules, so "put a value two fields share in its own category" is hard to find. "Renders as either shape" names no shape nearby, and the README defines no "field hold".
 
-### 93. Decide whether to refuse a field that only a `calc` reads and whose whole format is one reference, since a name spells the same pick.
-
-`{"format":"{calc(x * 2)}","x":"{/n}"}` and `"{/n as k}{calc(k * 2)}"` load and render alike, so goal 5.7's one spelling does not hold for a calc operand. A name read once whole is refused where the bare reference spells it, but a calc cannot read a reference, so the field is the remaining second spelling. Item 4 keeps both loading.
-
 ### 58. Ship prebuilt binaries, a container image, and packages for Homebrew, Scoop and the biggest Linux package managers, so the CLI needs no Go.
 
 GoReleaser attaches the binaries to the release the tag workflow publishes, and builds deb and rpm packages, an Alpine APK and an AUR package beside Homebrew and Scoop. A checkout build prints `devel` for `--version`; the binaries carry the stamped tag. v0.1.0 ships first, so it can be tested before it is packaged.