# todo

## Scoring

`Score = -R - S/4 + 2*A + 2*G*W`

`Bar = 9`

`Next ID = 190`

| Goal | W |
|---|---|
| 1 | 1.00 |
| 1.1 | 1.00 |
| 2 | 0.95 |
| 2.1 | 0.95 |
| 2.2 | 0.95 |
| 2.3 | 0.95 |
| 3 | 0.90 |
| 3.1 | 0.90 |
| 3.2 | 0.90 |
| 3.3 | 0.90 |
| 3.4 | 0.90 |
| 4 | 0.85 |
| 4.1 | 0.85 |
| 5 | 0.80 |
| 5.1 | 0.80 |
| 5.2 | 0.80 |
| 5.3 | 0.80 |
| 5.4 | 0.80 |
| 5.5 | 0.80 |
| 5.6 | 0.80 |
| 5.7 | 0.80 |
| 5.8 | 0.80 |
| 5.9 | 0.80 |
| 6 | 0.75 |
| 6.1 | 0.75 |
| 6.2 | 0.75 |
| 7 | 0.70 |
| 7.1 | 0.70 |
| 7.2 | 0.70 |
| 7.3 | 0.70 |
| 8 | 0.65 |
| 9 | 0.60 |
| 9.1 | 0.60 |
| 9.2 | 0.60 |
| 9.3 | 0.60 |
| 9.4 | 0.60 |
| 9.5 | 0.60 |
| 9.6 | 0.60 |
| 10 | 0.55 |
| 10.1 | 0.55 |
| 11 | 0.50 |
| 12 | 0.45 |
| 12.1 | 0.45 |
| 12.2 | 0.45 |
| 12.3 | 0.45 |
| 13 | 0.40 |
| 13.1 | 0.40 |
| 14 | 0.35 |
| 15 | 0.30 |
| 16 | 0.25 |

## Items

| ID | Release | Exempt | Item | R | S | A | G | Goals | Score |
|---|---|---|---|---|---|---|---|---|---|
| 78 | 0.1.0 | decision | **Ship 10% of every place's streets, at least 10, and 10% of all US places drawn by population, each place weighted by population.** | 6 | 7 | 10 | 10 | 2, 14 | 31.2 |
| 61 | 0.1.0 |  | **Add a locale, with its `geo/` tree, for each of the ten most-spoken languages and each Nordic country.** | 4 | 9 | 9 | 10 | 2.1 | 30.8 |
| 185 | 0.1.0 | decision | **Seat a panel of the README's audience personas to pull data in through the module API and build a custom CLI, and fix what it names.** | 1 | 3 | 7 | 8 | 2.3, 1 | 28.2 |
| 16 | 0.1.0 |  | **Add locale categories: company, phone, finance, vehicle, words.** | 3 | 8 | 8 | 9 | 2.2, 15 | 28.1 |
| 182 | 0.1.0 | decision | **Ship `en_US`, `sv_SE`, `misc`, `geo/SE` and `geo/US` as nested Go modules exporting `FS`, listed by `data.Modules()`, and fail a bare `New()` naming `WithDataFS`.** | 7 | 9 | 9 | 10 | 2.3, 2 | 27.8 |
| 15 | 0.1.0 |  | **Add `misc` tables and templates, one row of its detail's table per chunk.** | 3 | 9 | 8 | 8 | 2, 15, 14 | 25.9 |
| 184 | 0.1.0 | decision | **Make the CLI the library call `cli.Main(modules ...fs.FS) int`, with `fejkdata`'s own `main` one line over `data.Modules()`.** | 4 | 5 | 7 | 9 | 9.6, 2 | 25.8 |
| 129 | 0.1.0 | decision | **Take a template wherever the library renders, so `fake:"{/sv_SE.person.first}"` and `Fake("{/sv_SE.person}")` render, and text with no `{…}` prints as written, as the CLI already does.** | 5 | 8 | 8 | 10 | 5.9, 7 | 25.0 |
| 163 | 0.1.0 |  | **Lift the CLI's `--repeat` cap, since the CLI streams each render, and give the builtins' count and decimal caps a technical reason in the README.** | 2 | 2 | 7 | 7 | 2, 5.7 | 24.8 |
| 57 | 0.1.0 |  | **Rewrite `CHANGELOG.md`'s `[Unreleased]` as what v0.1.0 holds.** | 1 | 2 | 6 | 6 | 1.1 | 22.5 |
| 164 | 0.1.0 |  | **Let a table's format or a cell bind a name, which lives in that format or cell and keeps one pick through the draw.** | 2 | 2 | 5 | 7 | 4.1, 5.3 | 19.4 |
| 157 | 0.1.0 |  | **Show in the README's CLI section how PowerShell and cmd.exe pipe a template, one line per shell family.** | 1 | 1 | 5 | 6 | 7.2 | 17.1 |
| 183 | 0.1.0 | decision | **Fail `New` when a manifest's `fejkdata` version differs from `fejkdata.Version`, naming the `go get` line that aligns them.** | 3 | 2 | 5 | 7 | 6 | 17.0 |
| 181 | 0.1.0 | decision | **Fail a load where two sources define one category, unless the library's option or the CLI's flag says the later replaces the earlier, and then make every read reach the replacement.** | 5 | 4 | 6 | 9 | 9.3 | 16.8 |
| 179 | 0.1.0 | decision | **Make `cmd/fejkdata` a Go module of its own in a committed `go.work`, with the gate covering every module and CI cutting one tag per module in lockstep.** | 6 | 5 | 4 | 8 | 2.3, 1.1 | 16.8 |
| 167 | 0.1.0 |  | **Lower the reading cost of the files a chunk reads most before its first commit.** | 1 | 3 | 2 | 8 | 3, 3.4 | 16.6 |
| 89 | 0.1.0 |  | **Fail `New` without `WithSeed`, naming the option, and seed the CLI from the system.** | 3 | 3 | 6 | 7 | 10.1 | 16.0 |
| 189 | 0.1.0 | question | **Decide whether item 180 absorbs item 79, and item 179 absorbs item 54, moving both into 0.1.0.** | 1 | 1 | 3 | 6 | 3 | 15.6 |
| 165 | 0.1.0 |  | **Let a table carry `name` with neither `key` nor `parent`, and list the rows a name matches by their line where it matches several.** | 2 | 2 | 4 | 6 | 5.7 | 15.1 |
| 127 | 0.1.0 |  | **Give a Swedish street only postal codes whose delivery digit means street or rural delivery, dropping codes whose delivery digit is 9, or record why they stay.** | 3 | 3 | 4 | 6 | 4 | 14.4 |
| 110 | 0.1.0 |  | **Refuse an empty segment in a path `Fake` and `FakeRecord` take, as a reference does: `sv_SE.person.` reports `path has an empty segment`.** | 1 | 1 | 3 | 6 | 6 | 13.8 |
| 188 | 0.1.0 | question | **Decide whether a module from outside fejkdata may load lazily through its manifest's index, letting its data's mistakes surface mid-render.** | 1 | 1 | 3 | 6 | 6, 9.1 | 13.8 |
| 166 | 0.1.0 |  | **Let a key or name cell hold a bracket, a brace, a double quote or a pipe, so the table loads, its row draws at random, and only a selector cannot reach it.** | 2 | 2 | 3 | 6 | 5.7 | 13.1 |
| 180 | 0.1.0 | decision | **Load a source whose `.fejkdata.json` carries an index on first reach and any other source in `New`, with the shipped index moved from `shippedindex.go` into that manifest.** | 6 | 6 | 5 | 8 | 13, 9.1 | 12.1 |
| 187 | 0.1.0 | question | **Decide whether a manifest's version must equal `fejkdata.Version` exactly, or only share its minor before 1.0.** | 1 | 1 | 3 | 6 | 9.1 | 11.9 |
| 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 |
| 113 | 0.2.0 | defect | **Draw `{iban(CC)}` with its country's national check digits, and SE's with a real bank's id, so a validator checking more than mod 97 accepts it.** | 3 | 5 | 7 | 9 | 4 | 25.0 |
| 154 | 0.2.0 |  | **Add `en_US.routing`, an ABA routing number over the Fed's prefix ranges with its check digit drawn by `{aba()}`.** | 2 | 2 | 6 | 7 | 2.2, 15 | 22.8 |
| 155 | 0.2.0 |  | **Add `misc.isin` and `misc.cusip`, built by their structure rules with their check digits drawn by `{isin()}` and `{cusip()}`.** | 2 | 2 | 6 | 7 | 2, 15 | 22.8 |
| 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 |
| 34 | 0.2.0 |  | **Add `{isin()}`, `{cusip()}`, `{aba()}` and `{vin()}`.** | 2 | 4 | 6 | 7 | 4 | 20.9 |
| 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 |
| 177 | 0.2.0 | decision | **Run the nine-seat comprehension panel and the scoring run again once item 107 has moved the engine, and file what the panel names.** | 1 | 3 | 3 | 9 | 3 | 20.4 |
| 91 | 0.2.0 |  | **Accept a path through a name as a `calc` operand, so `{/misc.coordinate as c}{c}: {calc(c.lat * 60)}` computes from the coordinate `{c}` prints.** | 3 | 4 | 6 | 7 | 4.1, 5.3 | 19.9 |
| 36 | 0.2.0 |  | **Report every mistake a load finds in one error, as the decision "A load reports every mistake at once" states.** | 5 | 6 | 7 | 8 | 6 | 19.5 |
| 88 | 0.2.0 |  | **Add a 12-digit `YYYYMMDDNNNC` form of `sv_SE.personnummer` and `sv_SE.samordningsnummer`, the form Skatteverket's testpersonnummer series and many systems store.** | 2 | 3 | 6 | 6 | 4 | 19.4 |
| 41 | 0.2.0 | decision | **Key every table by one key column, as the decision "A table selects by one key column, a code, never a free-form name" states.** | 6 | 7 | 7 | 8 | 5.5 | 19.1 |
| 52 | 0.2.0 |  | **Name the file a link error comes from beside its category path, `sub.x (/d/a/sub/x.json): …`.** | 1 | 2 | 5 | 7 | 6 | 19.0 |
| 117 | 0.2.0 |  | **List the fields of what a path has reached when its next segment names one that is not there: `{/word as a}{a.zz}` reports `no field "zz"; word has w`.** | 1 | 2 | 5 | 7 | 6 | 19.0 |
| 28 | 0.2.0 | decision | **Accept a middle name, and draw a `personnummer` whose sex matches a sex selected through a named pick.** | 4 | 4 | 6 | 7 | 4.1 | 18.9 |
| 24 | 0.2.0 | defect | **Stop `misc.territory[EH].tld` rendering `.eh`, the one shipped TLD `misc.tld` does not hold.** | 1 | 1 | 4 | 7 | 4 | 18.6 |
| 178 | 0.2.0 |  | **Plan with the systems architect which `internal/` packages the engine splits into, by area, and how each type stops being written by more than one stage, then file the moves as items.** | 1 | 3 | 2 | 9 | 3, 3.2 | 18.4 |
| 92 | 0.2.0 |  | **Name the hyphenated field in a `calc`'s refusal, and say to rename it: today `{calc(postal-code * 2)}` reports `no field "postal"`.** | 1 | 2 | 5 | 6 | 6 | 17.5 |
| 53 | 0.2.0 |  | **Let a table column carry a `datatype`, so `--format json` writes `"safe": true` and `--format sql` a boolean.** | 4 | 5 | 6 | 6 | 4 | 16.9 |
| 55 | 0.2.0 |  | **Document `NewRecordTemplate`, `ErrNoColumns` and `MaxRepeat` in the README's Library section.** | 1 | 2 | 6 | 7 | 12 | 16.8 |
| 18 | 0.2.0 |  | **Give the address records one column set across countries: `region` and `municipality` as columns on `geo.SE.address` too.** | 4 | 4 | 6 | 6 | 5 | 16.6 |
| 44 | 0.2.0 | decision | **Have `misc.tld[se]` select the row keyed `.se`, or have its miss name `[.se]`.** | 1 | 1 | 4 | 6 | 6 | 15.8 |
| 54 | 0.2.0 | defect | **Read the tag through `git/ref/tags/{tag}` in `publish_release.py`.** | 2 | 1 | 3 | 6 | 1.1 | 15.8 |
| 31 | 0.2.0 |  | **Rename `misc.territory.country` to `sovereign`.** | 3 | 2 | 4 | 7 | 5.8 | 15.7 |
| 20 | 0.2.0 | defect | **Weight `sv_SE.sex` and `en_US.sex` by bearers, as the README's Data section says they are.** | 2 | 2 | 4 | 6 | 4 | 15.7 |
| 50 | 0.2.0 |  | **Reword `prove`'s refusal of a typed column reading a row, `{/region}`.** | 1 | 2 | 4 | 6 | 6 | 15.5 |
| 17 | 0.2.0 |  | **Give every shipped category a column for each part its format composes, and one record shape across the national ids; re-pin the shape.** | 5 | 6 | 6 | 6 | 5 | 15.1 |
| 170 | 0.2.0 |  | **Decide in one function whether a read lands in a name's pick, which `refuseTwiceDrawnIn` calls at load and `keptInPick` at render.** | 3 | 3 | 2 | 8 | 3, 3.2 | 14.7 |
| 29 | 0.2.0 |  | **Let a path go from a selected row into the template beside its family: `geo.US.locality[1714000].address`.** | 4 | 4 | 5 | 6 | 5 | 14.6 |
| 42 | 0.2.0 |  | **Refuse a struct tag's `datatype` other than its Go type's before proving its values, as the README's Library section promises.** | 2 | 2 | 4 | 6 | 6 | 14.5 |
| 32 | 0.2.0 |  | **Add `misc.browser` as the parent of `misc.useragent`, so `misc.browser[Chrome].useragent` resolves.** | 3 | 3 | 4 | 6 | 4.1 | 14.4 |
| 22 | 0.2.0 |  | **Give `url` and `email` a path that draws only domains nobody can register, keeping the wide set as the default.** | 3 | 4 | 7 | 8 | 16 | 14.0 |
| 46 | 0.2.0 |  | **Report the same error every load for a table with two bad options.** | 2 | 2 | 3 | 7 | 6, 10 | 14.0 |
| 158 | 0.2.0 |  | **Drop a UTF-8 byte order mark that starts stdin, and say in the README how to stop PowerShell 5.1 sending `Göteborg` as `G?teborg`.** | 2 | 2 | 4 | 5 | 7.2, 5.1 | 13.5 |
| 79 | 0.2.0 | 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 |
| 171 | 0.2.0 |  | **Handle a template that only reads one record column in one place, so `checkColumns`, `itemDatatype`, `proveColumnItem` and `renderLeaf` no longer each special-case `readsColumn`.** | 3 | 3 | 2 | 7 | 3, 3.2 | 12.8 |
| 27 | 0.2.0 |  | **Merge `en_US.ip` and `sv_SE.ip`, today byte-identical, into one `misc.ip`.** | 3 | 2 | 4 | 6 | 8 | 12.3 |
| 107 | 0.2.0 | decision | **Move the template engine into the `internal/` packages item 178 plans, untangled so no type is written by more than one stage, leaving the root the public API and its options.** | 6 | 9 | 3 | 8 | 3.2, 3.4 | 12.2 |
| 186 | 0.2.0 | decision | **Load a module carrying functions through an option of its own, its functions reaching the generator's randomness and date through an interface the root declares.** | 6 | 7 | 5 | 8 | 9.5, 9.1 | 11.8 |
| 168 | 0.2.0 | principle | **Test the shared steps of `data-import/` in the merge gate, starting with `geo.fence`.** | 2 | 4 | 2 | 6 | 3 | 11.8 |
| 161 | 0.2.0 |  | **Let a field whose name starts or ends with whitespace be bound to a name, or refuse such an identifier, so `{ x as p}` means one thing.** | 2 | 2 | 2 | 6 | 5.6, 4.1 | 11.7 |
| 175 | 0.2.0 |  | **Rewrite the comments the 2026-10-09 panel needed several reads of, and delete those it read as restating their code.** | 1 | 2 | 1 | 6 | 3.4 | 11.3 |
| 112 | 0.2.0 |  | **Check a calc's field operands where its template resolves, beside its name operands, once item 36 reports every mistake at once.** | 2 | 2 | 1 | 6 | 3.2 | 10.3 |
| 172 | 0.2.0 |  | **Pass `drawSteps` the kind of read it draws as an argument of its own, so no caller signals a sibling path by a nil `pins` or a fresh read by a nil `memo`.** | 2 | 2 | 1 | 6 | 3.2 | 10.3 |
| 173 | 0.2.0 |  | **Call what a token reads its spelling, never a name, in `format.go`, `arm.go` and `reference.go`, so a name in the engine is only a bound name.** | 2 | 3 | 1 | 6 | 3.2 | 10.1 |
| 174 | 0.2.0 |  | **Spell once the fact that a walk's next step leaves a selected row, which `pathPos.fromRow` and `tableRoute.nextLinked` each spell today.** | 1 | 1 | 1 | 5 | 3.2 | 9.8 |
| 108 | 0.2.0 | defect | **Name item 26 in the decision "No builtin reads the clock, so a date is bounded by days, never by an age", as the item that ends its conflict with goal 4.** | 1 | 1 | 1 | 4 | 3.4 | 8.0 |
| 169 | 0.2.0 | question | **Reword the decision "A parent row with no child row is a load error" to say what each geo import does with such a row: drop it, or exit where `geo-se.py` would lose a kommun or a län.** | 1 | 1 | 1 | 4 | 3 | 8.0 |
| 38 | 0.3.0 | defect | **Compare `calcParser.binary`'s operator as a rune.** | 1 | 1 | 3 | 6 | 6 | 13.8 |
| 45 | 0.3.0 |  | **Name the node a selector follows in `childNamed`'s refusal.** | 1 | 1 | 3 | 6 | 6 | 13.8 |
| 49 | 0.3.0 |  | **Report a CRLF rows file holding only its header as having no rows.** | 1 | 1 | 3 | 6 | 6 | 13.8 |
| 13 | 0.3.0 | defect | **Place xlsx cells by their `r` reference in `data-import/xlsx.py`.** | 2 | 2 | 3 | 6 | 4 | 13.7 |
| 39 | 0.3.0 |  | **Stop the `columnKinds` suggestion naming a field's own kind or a narrower one.** | 1 | 2 | 3 | 6 | 6 | 13.5 |
| 51 | 0.3.0 |  | **Spell a table one way across the errors that name it.** | 1 | 2 | 3 | 6 | 6 | 13.5 |
| 115 | 0.3.0 |  | **Spell a rows file's line one way in every error, naming the file.** | 1 | 2 | 3 | 6 | 6 | 13.5 |
| 14 | 0.3.0 |  | **Spell `misc.creditcard`'s digit runs `{digits(n)}`.** | 2 | 2 | 4 | 6 | 8 | 13.3 |
| 11 | 0.3.0 |  | **Test that every `geo` tree holds the five table names and the `address` columns that port across countries.** | 1 | 2 | 3 | 5 | 4 | 13.0 |
| 35 | 0.3.0 |  | **Add `{base64url(n)}` for JWT shapes.** | 1 | 2 | 4 | 5 | 8 | 13.0 |
| 40 | 0.3.0 |  | **Parse `defaultTable`'s path with the library's grammar.** | 2 | 2 | 3 | 5 | 3.2 | 12.5 |
| 21 | 0.3.0 |  | **List `title` in both locales, and `sv_SE`'s `birth-number`, in the README's Data list of what each locale carries.** | 1 | 1 | 4 | 6 | 12 | 12.2 |
| 86 | 0.3.0 |  | **Read both `en_US.phone` formats' area codes from one category, as their exchange reads `en_US.phone-exchange`.** | 1 | 2 | 2 | 5 | 3.2 | 11.5 |
| 23 | 0.3.0 |  | **Give every other shipped category that could reach something real a path that never does.** | 3 | 6 | 6 | 7 | 16 | 11.0 |
| 75 | 0.3.0 |  | **Run every README `sh`, `go` and `text` example as a test, and compare each "Renders" line to a seeded render.** | 2 | 6 | 4 | 7 | 12.2 | 10.8 |
| 33 | 0.3.0 |  | **Group `data/misc` into folders where a group name makes a path easier to guess.** | 4 | 5 | 4 | 5 | 5 | 10.8 |
| 72 | 0.3.0 | principle | **Fail the merge gate when test coverage falls below the last recorded figure.** | 2 | 3 | 2 | 5 | 3 | 10.2 |
| 30 | 0.3.0 |  | **Draw `email.local` from `username`, so the two share one handle list.** | 2 | 2 | 3 | 5 | 8 | 10.0 |
| 95 | 0.3.0 | principle | **Hold a struct's columns and the field each fills in one slice.** | 1 | 2 | 1 | 5 | 3.2 | 9.5 |
| 116 | 0.3.0 |  | **Turn a row index into its rows file's line in one function.** | 1 | 2 | 1 | 5 | 3.2 | 9.5 |
| 19 | 0.3.0 |  | **Fill the 398 Swedish localities weighted 200 from SCB småorter.** | 2 | 4 | 4 | 6 | 14 | 9.2 |
| 56 | 0.3.0 | defect | **Build on a manual run of `test.yml`.** | 1 | 1 | 1 | 4 | 1 | 8.8 |
| 109 | 0.3.0 | principle | **Indent every script under `data-import/` with hard tabs, as `AGENTS.md` requires and `release-tooling/` does.** | 2 | 4 | 1 | 4 | 3 | 6.2 |
| 63 | 0.4.0 |  | **Pair a street with its exact postnummer.** | 3 | 6 | 5 | 8 | 4.1 | 19.1 |
| 62 | 0.4.0 |  | **Add `{btc()}` and `{eth()}`.** | 2 | 4 | 4 | 6 | 4 | 15.2 |
| 59 | 0.4.0 |  | **Promise in `Generator`'s godoc that its renders run one at a time.** | 1 | 1 | 5 | 5 | 12 | 13.2 |
| 65 | 0.4.0 |  | **Hold every change `AGENTS.md` says owes a `CHANGELOG.md` entry to one in CI.** | 2 | 3 | 4 | 5 | 5.8 | 13.2 |
| 66 | 0.4.0 |  | **Cut the README's Layout block to the lines that say what a file name cannot.** | 1 | 1 | 2 | 5 | 3.4 | 11.8 |
| 67 | 0.4.0 |  | **Cut `AGENTS.md` to the rules only it states, and explain every term its comprehension rule uses.** | 1 | 2 | 1 | 6 | 3.4 | 11.3 |
| 64 | 0.4.0 |  | **Give every entry in `docs/decisions.md` the goal it serves, its date, who made it and the premise it rests on.** | 1 | 4 | 1 | 6 | 3.4 | 10.8 |
| 68 | 0.4.0 | decision | **Make `gitea.larvit.se/larvit/fejkdata` a pull mirror of GitHub.** | 2 | 1 | 1 | 3 | 1.1 | 5.8 |
| 69 | 1.0.0 |  | **Announce v1.0.0 where a developer choosing a fake-data tool already reads, with a README first screen for someone deciding in a minute.** | 1 | 3 | 7 | 9 | 1.1 | 30.2 |
| 70 | 1.0.0 |  | **Publish a homepage with an in-browser generator, the library compiled to WebAssembly.** | 3 | 6 | 6 | 6 | 1.1 | 19.5 |

## Details

### 78. Ship 10% of every place's streets, at least 10, and 10% of all US places drawn by population, each place weighted by population.

Needs item 182. Ten streets per place crowds 500 Stockholm customers onto ten streets. `geo-se.py` and `geo-us.py` keep 10% of each place's streets, at least 10. `geo-us.py` draws 10% of every Census place, down to the smallest village, picking each with odds by population, and every table weights a place by its population, so a draw is not mostly tiny villages. Replaces the decision "The default embed holds every Swedish postort the import can place and give a street-delivery code and a street, and the US places of 25,000 or more", which the maintainer withdrew on 2026-10-03. Re-pin seeded output and the shape in their own commits.

### 61. Add a locale, with its `geo/` tree, for each of the ten most-spoken languages and each Nordic country.

Needs item 182, which moves the paths under `data/` this item writes. Pick the ten from a published ranking of languages by total speakers, such as Ethnologue's, each in the country where it has the most speakers, and record the ranking in the decision that names them. The Nordic ones are sv_SE (shipped), nb_NO, da_DK, fi_FI and is_IS. A new country decides three rules `geo-se.py` fixes for SE: `well_cased` drops a name spelled in capitals, and Bring's register spells every poststed so; a locality is keyed by name in SE and by code in US; and `data_test.go`'s `geoPlaces` reads every country but US by SE's column positions. A second country reading GeoNames' postal codes moves `geonames()` from `geo-se.py`, and the nearest-centroid street assignment in its `streets()`, into `geo.py`. Each locale carries goal 2.2's categories, and its `address` reads its country's `geo/` tree by reference. `rows.Pins` holds eight pins inline, sized for a five-deep geo tree; a deeper tree needs more to keep a render off the heap.

### 185. Seat a panel of the README's audience personas to pull data in through the module API and build a custom CLI, and fix what it names.

Needs item 184; 0.1.0 is not cut before it. Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one". Seats: the Go test author, the bulk fixture author, a custom CLI's builder, and a data author with a `-d` folder and the replace flag, each in a scratch module against the workspace or a pre-release tag. Bench the geo modules' package names, `data.Modules()`, and the error naming the import set. Record the ruling in `docs/`.

### 16. Add locale categories: company, phone, finance, vehicle, words.

Shape: T = table, t = template, c = choice.

`sv_SE` ([source research](docs/research/research-sources-se.md))

| Category | Shape | Source | Licence |
|---|---|---|---|
| `person` title, birthdate, age, blood type weighted | t | geblod.nu distribution | facts |
| `organisationsnummer` by form, `vat` | t | Bolagsverket group digits, Luhn, `SE…01` | facts |
| `company` name patterns, legal form weighted | t | Bolagsverket registrations 2025 | CC BY 2.5 SE |
| `sni` industry codes | T | SCB SNI 2025 | "Källa: SCB" |
| `ssyk` occupations | T | SCB SSYK 2012 | "Källa: SCB" |
| `phone` mobile, fixed per area code, E.164 | T+t | PTS numbering plan 2024 | facts |
| `bankgiro`, `plusgiro`, `bankaccount` clearing + Luhn/mod-11 | T+t | Bankinfrastruktur CSV, Bankgirot rules | facts |
| `licenseplate` `ABC 123`, `ABC 12A`, blocked combinations | t | Transportstyrelsen | facts |
| `car` make, model weighted by registrations | T | Mobility Sweden 2025 | cite |
| `word` noun, verb, adjective, adverb; `sentence` | T+t | SALDO | CC BY 4.0 |
| month and weekday names, `holiday` | t+T | CLDR sv, lag 1989:253 | Unicode |
| `territory` localised names keyed by alpha2 | T | CLDR sv territory names | Unicode |

`en_US` ([source research](docs/research/research-sources-world.md), and `part1`–`part4`)

| Category | Shape | Source | Licence |
|---|---|---|---|
| `ein` valid ranges | t | IRS | facts |
| `company` names, suffix, `naics` | t+T | SEC tickers for patterns, NAICS 2022 | public domain |
| `phone` NANP with valid NPA (the NXX ships as `en_US.phone-exchange`) | t | NANPA rules | facts |
| `bankaccount` | t | — | — |
| `licenseplate` per state | T | hand-authored patterns | facts |
| `car` make, model | T | NHTSA vPIC | public domain |
| `word`, `sentence`, `paragraph` | T+t | Moby POS or WordNet | public domain / WordNet |
| month and weekday names, `holiday` | t+T | CLDR en | Unicode |

### 182. Ship `en_US`, `sv_SE`, `misc`, `geo/SE` and `geo/US` as nested Go modules exporting `FS`, listed by `data.Modules()`, and fail a bare `New()` naming `WithDataFS`.

Needs items 179 and 180. Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one".
- Each module's directory is a data root, so its tree spells its namespace: `data/sv_SE/` is `github.com/larvit/fejkdata/data/sv_SE` and holds `sv_SE/*.json`; `data/geo/SE/` holds `geo/SE/…`. Each package exports only `var FS embed.FS`, with no `init`, and carries a generated manifest whose `reads` names the modules it reads, `sv_SE` naming `geo/SE`.
- The module `github.com/larvit/fejkdata/data` exports `Modules() []fs.FS` and requires every data module; the core requires none, so a library user's module graph never holds the list.
- The core stops embedding data. `WithDataFS` takes several. `WithoutShippedData` goes, and `--no-shipped-data` loads none of the modules the CLI carries. A read nothing provides fails, naming the module from the reader's manifest or saying none does, and the first error names the whole set to import.
- Core tests read the modules from the checkout through `os.DirFS`, never by import, so no module cycle forms. Each data module's own test calls `New(WithDataFS(FS))`, which keeps its `require` of the core. `data-import/` output paths, `AGENTS.md`, CI's changelog filter and the shape pin follow the move.
- Revises the decisions "The shipped data is embedded, not discovered" and "A locale's `address` reads its country's `geo` tree, so a locale folder is no data set on its own". Items 61 and 78 rewrite paths under `data/`, so they follow this item.

### 15. Add `misc` tables and templates, one row of its detail's table per chunk.

Shape: T = table, t = template, c = choice.

| Category | Shape | Source | Licence |
|---|---|---|---|
| `ip` v4 documentation ranges, private, CIDR; `ipv6` `2001:db8::/32`; `mac` locally administered | t | RFC 5737, 1918, 9637 | facts |
| `creditcard` per network: IIN, length, CVV, expiry | T+t | network rules, `{luhn()}` | facts |
| `bic` | t | structure rules | facts |
| `ean`, `upc`, `gtin`, `isbn`, `issn`, `imei`, `asin`, `sku` | t | check-digit rules, GS1 demo prefix 952 | facts |
| `product` name, adjective, material, department, `garmentsize` | T/c | LLM-written lists | — |
| `airport` IATA, ICAO, territory, municipality; `airline`; `aircraft`; `flight`, `seat`, `pnr` | T+t | OurAirports, Wikidata | public domain, CC0 |
| `element`, `unit`, `planet` | T | PubChem, BIPM, NASA | public domain, CC BY 4.0 |
| `animal` by class, `plant` | T | Wikidata | CC0 |
| `bloodtype` weighted (global) | c | AABB | facts |
| `color` named, hex, rgb, hsl, cmyk | T+t | CSS Color 4, XKCD | W3C, CC0 |
| `programminglanguage`, `os`, `browser`, `database` column/type/engine, `fileext` | T/c | Linguist, curated | MIT |
| `commit` message, branch, `sha` | t | LLM-written, `{hex(40)}` | — |
| `password`, `hash`, `jwt`, `slug`, `hostname`, `avatar`, `placeholderimage` | t | shapes | — |
| `book` title, author; `genre`; `instrument`; `dish`, `ingredient` | T | Gutenberg catalog, MusicBrainz, USDA | CC0 |
| `lorem`, `hacker`, `hipster`, `catchphrase`, `buzzword`, `quote` | T/c | lorem ipsum, LLM-written | — |
| `direction`, `continent`, `ulid` | c/t | — | — |

### 184. Make the CLI the library call `cli.Main(modules ...fs.FS) int`, with `fejkdata`'s own `main` one line over `data.Modules()`.

Needs item 182. Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one".
- `cmd/fejkdata/main.go` moves into package `github.com/larvit/fejkdata/cli` in the core module, and `imports_test.go` keeps `cli` off `internal/`. `cli`'s tests use fixture modules; the command module keeps one end-to-end test over the real modules.
- The README's Library quick start shows the whole import block for one locale, a section shows a custom CLI as example code, and Versioning gives each module's tag spelling and says to pin every fejkdata module at one version. Layout and Development follow.
- Revises the decision "The CLI reads only the library's public API" to name `cli`.

### 129. Take a template wherever the library renders, so `fake:"{/sv_SE.person.first}"` and `Fake("{/sv_SE.person}")` render, and text with no `{…}` prints as written, as the CLI already does.

Goal 5.9. Today a path is a second spelling of the template that reads it; afterwards only the template remains.

- A lone reference, a template of one reference token and nothing else, is what it references, as a record column reading one reference already is: `FakeRecord("{/users}")` returns the columns of `users`. The CLI's `loneReference` and the `isPath` check it copies from the token grammar then go, and `--format sql` takes its default `--table` from the library's parse of the reference.
- `Fake` and `FakeRecord` take a template. `FakeTemplate` folds into `Fake`, `FakeRecordTemplate` into `FakeRecord`, and `IsTemplate` goes, with `grammar.IsTemplate`.
- `Fake` of a lone reference costs what `Fake` of its path costs today, and the allocation gate holds a case for it.
- `List` and `--list` give each entry as the template that renders it, `{/sv_SE.person}`.
- Text that is not a JSON value and holds no `{…}` prints as written (goal 5.1), in a string field's struct tag and `Fake` alike, as stdin's text does in the CLI: `Fake("sv_SE.person")` returns `sv_SE.person`. `CHANGELOG.md` says that a path with no `{…}` prints as its text. A struct tag's `-` still skips its field.
- Where text with no `{…}` is refused, as a record or in a typed struct field, and it spells a path the data offers, the error names `{/that.path}`.
- A lone reference to nothing exits 2 under `--format`, where it exits 1 today.
- A lone reference written as an object holding only a format, `{"format":"{/users}"}`, or as a one-item choice, `["{/users}"]`, names the record as `{/users}` does.
- A struct tag of a bare JSON number or boolean, `fake:"42"`, renders its text, as stdin and `NewTemplate` already do.
- `grammar.CallerPath`, which strips a path's leading `/`, goes with the path spelling, and so does the README's Library line allowing it.
- Decide whether a lone reference under `--format` draws as its path draws today or as a template draws: under one seed, drawing `users` as a path and as the template `{/users}` picks different rows.
- This revises the decisions "A struct tag is a template by its shape", "`FakeTemplate` and `NewTemplate` both stay", "`--list` stays a plain list of paths", "The CLI renders exactly the template on its stdin, and adds nothing", and the exit-1 rule for a lone reference to nothing in "A template that does not compile is misuse (exit 2), including a reference that resolves to nothing, save a lone reference under the CLI's `--format` until item 129". The README's examples and exit codes, the godoc examples in `doc.go` and `CHANGELOG.md`'s entries move to the template spelling. Delete items 40 and 110, which this closes.

Split it into items for the CLI, struct tags and the library before starting.

### 163. Lift the CLI's `--repeat` cap, since the CLI streams each render, and give the builtins' count and decimal caps a technical reason in the README.

The README's Audience names a bulk fixture author writing millions of rows, and `-n 5000000` is misuse today, so they loop. The decision "The repeat cap bounds renders, not bytes" covers nested repeats in data, not `-n`. The README's Functions section justifies the builtin caps by a fat-fingered `hex(2000000000)`, a guess at a mistake under goal 5.7; the reason that holds is that one render may not allocate gigabytes. The goals audit of the narrowed goal 5.7 found it.

### 57. Rewrite `CHANGELOG.md`'s `[Unreleased]` as what v0.1.0 holds.

Nothing has shipped, so "no longer paths", "where it used to fail" and "where it used to be an empty string" describe versions no reader can have installed.

### 164. Let a table's format or a cell bind a name, which lives in that format or cell and keeps one pick through the draw.

The maintainer ruled so on 2026-10-09: a name is a lexical closure, as the decision "A name lives in the category binding it, or in the repeat or choice item binding it, and is drawn on its first read" now states. Today `table.go` refuses `{/sv_SE.person as p}{p.first} {p.last}` in a cell with `a table binds no name`. A cell reads no name its table's format binds. Revise that decision's title and the README's Names list with it.

### 157. Show in the README's CLI section how PowerShell and cmd.exe pipe a template, one line per shell family.

Split from item 129. cmd.exe's `echo` keeps its quotes and a trailing space, so `echo {/users} | fejkdata` sends `{/users} ` and stops naming the record.

### 183. Fail `New` when a manifest's `fejkdata` version differs from `fejkdata.Version`, naming the `go get` line that aligns them.

Needs item 182, and item 187's answer for what counts as a match. Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one". The generator writes `Version` into every manifest, and item 179's release script regenerates them.

### 181. Fail a load where two sources define one category, unless the library's option or the CLI's flag says the later replaces the earlier, and then make every read reach the replacement.

Needs item 180. Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one". Proposed spellings: `WithReplace()` and a boolean `--replace` covering every `-d`, so it goes anywhere on the line. Bench the option, the flag and the clash error with the data and hand fixture authors before merging; the error names the option or the flag. A clash is found from index names and walked names, without parsing. Revises the decision "A `--data-path` override rebinds every reference to the category it replaces", ending its conflict with goal 9.3. The changelog names the flag, the option and the new refusal.

### 179. Make `cmd/fejkdata` a Go module of its own in a committed `go.work`, with the gate covering every module and CI cutting one tag per module in lockstep.

Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one". Lands before 0.1.0 is cut: a nested `cmd/fejkdata` module added after core v0.1.0 ships the command would make `go install …/cmd/fejkdata` ambiguous.
- The Dockerfile copies `go.work` and every `go.mod`. `vet`, `test`, `build`, `cover` and `bench`, in `compose.yaml` and the Dockerfile, cover every workspace module; prove on Go 1.22.12 whether `./...` crosses them, else loop over `go list -m -f '{{.Dir}}'`. The gate fails on a `replace` in any `go.mod`. CI's change filter adds `go.work` and `**/go.mod`.
- Add `fejkdata.Version`, which `--version` prints in place of the build info. A gate test checks that a versioned top changelog heading and every intra-repo `require` equal it, and a release-tooling script rewrites all of them from the heading, so cutting a release stays one decision.
- `publish_release.py` creates `vX.Y.Z` and `<dir>/vX.Y.Z` for every `go.work` module through `git/refs`, idempotent per tag. A job after tagging runs `GOPROXY=direct go install …/cmd/fejkdata@vX.Y.Z` and one render.
- Revises the decision "The changelog heading is the one spelling of a release; CI cuts the tag", and adds one: the modules develop in one committed `go.work`, and no published `go.mod` carries a `replace`.

### 167. Lower the reading cost of the files a chunk reads most before its first commit.

`reading-cost` on 2026-10-09: the last 5 chunks' median is 96842 new input tokens before their first commit, the 5 before them 79101. Read most over the last 5 (opens and searches): `README.md` 45, `todo.md` 24, `AGENTS.md` 23, `cmd/fejkdata/main.go` 23, `CHANGELOG.md` 21, `pick.go` 21, `path.go` 20, `env.go` 19, `fejkdata.go` 19, `arm.go` 18. The chunk shipping this item runs `reading-cost --reset`.

### 89. Fail `New` without `WithSeed`, naming the option, and seed the CLI from the system.

Goal 10.1 has the caller supply the seed, and today `New` without `WithSeed` seeds itself. This item ships in 0.1.0 beside item 182, so `New` breaks once before anyone depends on it. Mark `WithSeed` required in the Library section's options table. Its tests then stop swapping `randomBytes`, as `fejkdata_test.go` does today, which fails every `New` in the package while that test runs.

### 189. Decide whether item 180 absorbs item 79, and item 179 absorbs item 54, moving both into 0.1.0.

Item 180's per-entry reads are what item 79 needs, and item 179 rewrites the tag code item 54 fixes. Absorbing either deletes it from the plan, and the decision "With only the shipped set, a category loads on the first call reaching it; beside a `--data-path`, every category loads in `New`" cites item 79.

### 165. Let a table carry `name` with neither `key` nor `parent`, and list the rows a name matches by their line where it matches several.

The maintainer ruled so on 2026-10-09. Today `bindOptions` in `internal/rows` refuses such a table, since `ambiguous`, which reports a name matching several rows, lists those rows by key. Afterwards `ambiguous` lists them by line, the header being line 1, and ends with "make the names unique, or add a key column".

### 127. Give a Swedish street only postal codes whose delivery digit means street or rural delivery, dropping codes whose delivery digit is 9, or record why they stay.

`docs/research/research-geo-se.md` reads delivery digit 0 or 1 as boxes, 2–4 and 6–7 as street, 5 as rural, 8 as reply mail and 9 as competitions or temporary, with exceptions in big cities. `street_delivery` drops 0, 1 and 8 and keeps 9. The panel of 2026-10-05 found it; whether a shipped street carries a 9 code is unchecked.

### 110. Refuse an empty segment in a path `Fake` and `FakeRecord` take, as a reference does: `sv_SE.person.` reports `path has an empty segment`.

Today `Fake("sv_SE.person.")` reports `no field ""`, while `{/sv_SE.person.}` reports `path has an empty segment`. `grammar.CheckSegments` is the check a reference, a sibling path and a step up `..` run.

### 188. Decide whether a module from outside fejkdata may load lazily through its manifest's index, letting its data's mistakes surface mid-render.

Goal 6 wants every mistake at load; goal 9.1 wants fejkdata's modules to load as anyone's do. CI proves fejkdata's own modules whole. The choices: honour an index only on fejkdata's own modules; publish the index generator, so a module's author can prove theirs; or accept the risk. Item 180 waits on the answer.

### 166. Let a key or name cell hold a bracket, a brace, a double quote or a pipe, so the table loads, its row draws at random, and only a selector cannot reach it.

The maintainer ruled so on 2026-10-09. Today `checkSelectorCells` in `internal/rows` refuses the whole table. Afterwards a path naming such a key fails with an error naming the character a selector cannot spell, and the README says a row whose name holds such a character is still selected by its key.

### 180. Load a source whose `.fejkdata.json` carries an index on first reach and any other source in `New`, with the shipped index moved from `shippedindex.go` into that manifest.

Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one". The manifest is `.fejkdata.json` at a module's root, hidden so it is no category: `{"fejkdata": version, "reads": {path prefix: module}, "index": {category: {"parent", "paths", "reads"}}}`. `go generate` writes it from the data, as it writes `shippedindex.go` today, and `TestShippedIndexIsCurrent` becomes a test that it is current.
- `internal/datafiles` reads the manifest, and `shipped.go`'s unloaded tree is built per source from its index, so fejkdata's data loads as anyone's does (goal 9.1).
- Each index entry carries the categories it reads. Beside a `--data-path`, `New` loads the user's categories, what they read and the shipped categories reaching a replaced one; the rest load on first reach. That is item 79; item 189 asks whether this item absorbs it.
- Core tests move to `fstest.MapFS` fixtures carrying manifests.
- Revises the decision "With only the shipped set, a category loads on the first call reaching it; beside a `--data-path`, every category loads in `New`". Item 188 asks whether a module from outside fejkdata loads lazily too.

### 187. Decide whether a manifest's version must equal `fejkdata.Version` exactly, or only share its minor before 1.0.

Exact equality suits fejkdata's own modules, which release in lockstep, but breaks every module from outside fejkdata on each patch release. Item 183 waits on the answer.

### 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.

### 113. Draw `{iban(CC)}` with its country's national check digits, and SE's with a real bank's id, so a validator checking more than mod 97 accepts it.

`iban` in `internal/builtinfunc/checksum.go` draws a random numeric BBAN and sets only the mod-97 digits. BE's last two digits are the first ten mod 97, NO carries a mod-11 account check digit, FI a Luhn digit, ES two control digits, and SE's three-digit bank id must be a real bank's (`docs/research/research-sources-se.md`). Goal 4 asks for the check the real system applies; the README's `{iban(CC)}` row promises only length and mod 97, and changes with it.

### 154. Add `en_US.routing`, an ABA routing number over the Fed's prefix ranges with its check digit drawn by `{aba()}`.

Needs item 34.

### 155. Add `misc.isin` and `misc.cusip`, built by their structure rules with their check digits drawn by `{isin()}` and `{cusip()}`.

Needs item 34: `{luhn()}` skips letters, so it draws a wrong ISIN check digit, and CUSIP's check digit is not Luhn.

### 26. Spell `sv_SE.personnummer` with the `+` Skatteverket uses from the year the holder turns 100, judged by a date the caller gives.

The format hard-codes `-`, and its earliest birthdate, 1930-01-01, makes the oldest draws invalid from 2030. A system holding Swedish personnummer often breaks on the `+`, so a fixture carrying one is a valuable test. Whether a number takes `+` depends on the date it is read, and the decision "No builtin reads the clock, so a date is bounded by days, never by an age" forbids a builtin from reading that date off the clock. This item revises it: once the caller gives the date, an age is a bound, and the CLI's default date makes output change with the day it runs unless the flag is given. Do the first step before the rest:
- Explore how a caller passes input data, such as the date a number is read on, to a render: in the template, as a plain option, or both. Make the library require the date, as item 89 makes it require the seed, and let the CLI default it to the system's when its flag is absent. Bench the spelling; `--now` reads like the clock. Shape the input so it can later narrow the draws to adults, children, 65 and over, or a mix, and so let a test ask for a centenarian; narrowing itself waits for its own item.
- Draw birthdates back past 100 years before the given date, so a `+` can appear. Read in 2026, the oldest shipped birthdate is 96 years old, so no draw carries a `+` until 2030. Skatteverket's test series reaches back to 1890, with birth numbers 980/981 before 1900. Draw no birthdate after the given date.
- Weight the ages by the territory's population, so the share of `+` numbers follows its demography: [research-age-bands.md](docs/research/research-age-bands.md).
- Let a data author's own category spell the separator too, through a builtin or a function a data module provides (item 186), and update the README's personnummer recipe and its "a day in 1930–2025" count.
- Rewrite the README's `--seed` and `WithSeed` rows to goal 10's wording, and name the new required option in the changelog: `New` breaks a second time here, after item 89, as the maintainer accepted.
- Research: `sv_SE.samordningsnummer` also hard-codes `-` and draws from 1930. Check whether Lag (2022:1697) om samordningsnummer gives it the same `+`; folkbokföringslagen 18 § states the rule for personnummer only.

### 34. Add `{isin()}`, `{cusip()}`, `{aba()}` and `{vin()}`.

`isin`: Luhn over letters expanded to digits. `aba`: 3-7-1 weights. `vin`: position 9 over the whole; a sample taking the WMI, since the check sits mid-string.

### 81. Refuse at load every `calc` operand not proven numeric and every divisor not proven nonzero, in a string column too.

The decision "A constant zero divisor is a load error; in a string column a divisor that is not constant prints `Inf`" lets `{calc(a/(b*c))}` with `b` fixed at `"0"` write `Inf` into every row. An operand that is sometimes not a number prints `NaN`. Both work against goals 6.1 and 4. `valueproof.go` already proves a typed column's divisor nonzero. Once every operand is proven, `neverNumeric` and `constantValue` in `calc.go` go, and with them their reading of `NaN` and `Inf` as numbers, which `proven.Literal` refuses: calc reads text as a number one way.

### 177. Run the nine-seat comprehension panel and the scoring run again once item 107 has moved the engine, and file what the panel names.

Needs item 107. The decision "comprehension floor: every dimension and the overall at 7.0 or above, from 0.2.0" holds the scores this run is measured against.

### 91. Accept a path through a name as a `calc` operand, so `{/misc.coordinate as c}{c}: {calc(c.lat * 60)}` computes from the coordinate `{c}` prints.

A calc operand parses as a bare identifier, so `{calc(c.lat * 60)}` fails with `unexpected ".lat * 60"`, and a second binding of `/misc.coordinate.lat` would draw another coordinate. Resolve the path through `compileArm`'s leaves, as `operandNodes` does for a bare name.

### 36. Report every mistake a load finds in one error, as the decision "A load reports every mistake at once" states.

`New` and `NewTemplate` stop at the first, so data holding two mistakes takes two runs to fix. Split it into items before starting, one of them the shape a Go caller iterates and the CLI prints, and the order of an inline template's mistakes, which name no path; reword the README's "`New` refuses a mistake in the data" to every mistake.

### 88. Add a 12-digit `YYYYMMDDNNNC` form of `sv_SE.personnummer` and `sv_SE.samordningsnummer`, the form Skatteverket's testpersonnummer series and many systems store.

A system that stores the 12-digit form never meets the `+`, so it needs a fixture in that form.

### 41. Key every table by one key column, as the decision "A table selects by one key column, a code, never a free-form name" states.

`geo.SE.municipality[Lund]` and `misc.territory[Sweden]` select a row today. Steps:
- Have a selector that misses name the key of every row whose cell spells it, matched without case, else say the table selects by its key: `misc.territory[Sweden]` and `misc.territory[se]` name `[SE]`, `misc.protocol[tcp]` its key, and `misc.loglevel[Error]` `[err]`.
- Delete the `name` option and the load checks it carries, and have `New` refuse a table still carrying `name`, naming `key`.
- Key `misc.loglevel` on `keyword`, and `geo.SE.locality` on the integer `data-import/geo-se.py` assigns as the decision states, linking `street` and `postal-code` by it.
- Drop `key` from `last-name` and `sv_SE.title`, and re-pin `testdata/shipped_shape.txt`.
- Leave no selection by name in README.md, CHANGELOG.md, docs/ or `--help`.

### 52. Name the file a link error comes from beside its category path, `sub.x (/d/a/sub/x.json): …`.

With several `--data-path` layers the author has to work out which directory won, while a parse error on the same file names it.

### 117. List the fields of what a path has reached when its next segment names one that is not there: `{/word as a}{a.zz}` reports `no field "zz"; word has w`.

Today the refusal names only the missing field, so a data author fixing a typo opens the category to find the spelling. Item 92 covers the hyphenated `calc` operand only.

### 28. Accept a middle name, and draw a `personnummer` whose sex matches a sex selected through a named pick.

Today `personnummer` draws its own sex, so a name and a number agree only through the README Data section's template, which reads both through one bound `sex`.

### 24. Stop `misc.territory[EH].tld` rendering `.eh`, the one shipped TLD `misc.tld` does not hold.

ISO 3166 reserves it for Western Sahara and the root zone has never been delegated it, so no resolver answers for it.

### 178. Plan with the systems architect which `internal/` packages the engine splits into, by area, and how each type stops being written by more than one stage, then file the moves as items.

The maintainer chose on 2026-10-09 to regroup the engine into packages in 0.2.0, untangled first, over naming the root files by area. What the panels of 2026-10-09 on b9d1af6 found:

- The 25 flat root files are the worst level of the tree; both architect seats grouped them by hand into public API, load, names, render, paths and proofs.
- The named-pick machinery spans `name.go`, `namefence.go`, `pick.go`, `env.go`, `render.go`, `path.go` and `record.go`, and every seat found it hardest.
- `template` is filled in four phases by four functions, `readsColumn` has four readers in three files, and `renderEnv` shares one `frameStack` by pointer behind a by-value env.
- Calc lives in five places, and paths are walked by `compiledPath`, `callerPathSteps` and `drawSteps` over one `compileStep`.

The decision "The template engine stays the root package until item 107; what reads no engine type, a table's rows included, sits in `internal/`" says why the engine stayed whole: `template`, `table`, `arm`, `op` and `nameBinding` sit in one cycle, since several load stages each write part of the same structs. The plan answers four questions. How does load finish each value before render reads it? Which packages does that give, and what is each one's fan-out? How does the allocation gate hold? Which of items 170 to 175 does it answer or close? It lands as a `docs/decisions.md` entry replacing that decision, and as items under item 107, each shipping with a paired ruling no worse.

### 92. Name the hyphenated field in a `calc`'s refusal, and say to rename it: today `{calc(postal-code * 2)}` reports `no field "postal"`.

A hyphen is always subtraction in a calc, and the shipped data has hyphenated fields (`postal-code` and `street-number` in `geo/SE/address`). The refusal names the first fragment, not the field the author meant.

### 53. Let a table column carry a `datatype`, so `--format json` writes `"safe": true` and `--format sql` a boolean.

Today only a JSON field takes one, so `misc.httpmethod`'s booleans are typed in Go and text everywhere else. Typing a shipped column changes what `json` and `sql` write, so the capability is a minor and applying it to `misc.httpmethod` is a major.

### 44. Have `misc.tld[se]` select the row keyed `.se`, or have its miss name `[.se]`.

The decision "`misc.tld` keys carry the leading dot, where other tables key on a bare code" leaves `misc.tld[se]` missing today.

### 54. Read the tag through `git/ref/tags/{tag}` in `publish_release.py`.

GitHub answers `tags/{tag}` with 404 whatever exists, so the burnt-version guard never fires and a release lands on a tag already pointing at another commit.

### 31. Rename `misc.territory.country` to `sovereign`.

It holds a code, and `country` collides with the `misc.country` path it replaced.

### 20. Weight `sv_SE.sex` and `en_US.sex` by bearers, as the README's Data section says they are.

Neither names a `weight`, so a bare `sex` draws evenly.

### 50. Reword `prove`'s refusal of a typed column reading a row, `{/region}`.

Say the format is the table's own (`region's format "{name}"`), name the read to write, `{/region.<column>}` with its columns, and stop calling a one-column format, `{code}`, composed text.

### 17. Give every shipped category a column for each part its format composes, and one record shape across the national ids; re-pin the shape.

`misc.uuid` gains `variant`, for one.

### 170. Decide in one function whether a read lands in a name's pick, which `refuseTwiceDrawnIn` calls at load and `keptInPick` at render.

All 13 seats of the 2026-10-09 panel on b9d1af6 named `keptInPick` and `readUnder` hardest, and 12 named the rule both apply as the code they would least want to change. A key `addressedKeys` builds at load must equal the one `pickKey.under` builds at render, and a mismatch splits a correlated draw without an error. `refuseTwiceDrawnIn` applies the same rule at load in code of its own. In the new function's comment, say why a fresh read's levels start at its head, `levelKeys(…, 1)` in `pathArm`, and a named read's at its target, `levelKeys(full, 0)` in `compileArm`, which three seats rebuilt by hand.

### 29. Let a path go from a selected row into the template beside its family: `geo.US.locality[1714000].address`.

Require the path step to reach a sibling category.

### 42. Refuse a struct tag's `datatype` other than its Go type's before proving its values, as the README's Library section promises.

`datatype: boolean` over `{int(1,2)}` on an `int` field answers `prints an integer, not a boolean`.

### 22. Give `url` and `email` a path that draws only domains nobody can register, keeping the wide set as the default.

17 of the 40 distinct ones shipped today sit on `.se`, `.nu`, `.io` and `.co`, which anyone may register, and only RFC 2606's `example.com`, `.net`, `.org`, `.test`, `.example`, `.invalid` and `.localhost` provably reach nothing.

### 46. Report the same error every load for a table with two bad options.

`readTableOptions` in `table.go` returns on the first in Go's map order.

### 158. Drop a UTF-8 byte order mark that starts stdin, and say in the README how to stop PowerShell 5.1 sending `Göteborg` as `G?teborg`.

A file a Windows editor saves with a BOM prints an invisible U+FEFF first, and a JSON template with one is read as a format string. PowerShell 5.1 encodes what it pipes to a program by `$OutputEncoding`, ASCII by default. The maintainer chose 0.2.0 on 2026-10-07.

### 79. 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.

Needs item 181, which makes an override fail unless it says it replaces.

The decision "With only the shipped set, a category loads on the first call reaching it; beside a `--data-path`, every category loads in `New`" parses the whole shipped set on every `--data-path` run, about 45 ms today and seconds once items 61 and 78 land. Goal 6 needs only the user's categories, the shipped ones they override, the shipped ones they read, and the shipped ones whose reads reach an overridden category, so the index would carry each category's reads.

### 171. Handle a template that only reads one record column in one place, so `checkColumns`, `itemDatatype`, `proveColumnItem` and `renderLeaf` no longer each special-case `readsColumn`.

Eleven seats of the 2026-10-09 panel named the "change them together" in `readsColumn`'s comment (`node.go`) as action at a distance across `datatype.go`, `valueproof.go` and `render.go`.

### 107. Move the template engine into the `internal/` packages item 178 plans, untangled so no type is written by more than one stage, leaving the root the public API and its options.

Needs item 178, which splits it into items before any code moves. The engine returns column values and the root builds `Record`. Revises the decision "The template engine stays the root package until item 107; what reads no engine type, a table's rows included, sits in `internal/`", and, if the vocabulary moves, "The vocabulary sits below `doc.go`'s package clause, not in the package doc".

### 186. Load a module carrying functions through an option of its own, its functions reaching the generator's randomness and date through an interface the root declares.

Carries out the decision "The shipped data becomes Go modules a library imports by choice, and the CLI carries every one". Needs the caller-given date items 89 and 26 add. A function asks for its inputs through one generic mechanism, and `internal/drawstate` stays internal. `cli.Main`'s signature grows here, which a minor before 1.0 allows. Write its detail when it is planned.

### 168. Test the shared steps of `data-import/` in the merge gate, starting with `geo.fence`.

Against "Most, if not all, code should have automated tests" in `technical-principles.md`: no Python under `data-import/` has a test, and the gate, `docker build .`, runs Go alone. Today `geo.fence` is checked only by regenerating both countries' TSVs from the full downloads and diffing them. Item 61 adds a geo script per country, each calling `fence`.

### 161. Let a field whose name starts or ends with whitespace be bound to a name, or refuse such an identifier, so `{ x as p}` means one thing.

`grammar/identifier.go` allows a field named ` x`, and `{ x}` reads it, but `checkBind` in `format.go` refuses every padded binding, so no spelling binds that field to a name (goal 4.1), and the refusal names one meaning only (goal 5.6). The goals audit of the narrowed goal 5.7 found it.

### 175. Rewrite the comments the 2026-10-09 panel needed several reads of, and delete those it read as restating their code.

Reread: `readField`'s note on clearing the pick (`render.go`), `pickKey.under`, which three seats read backwards, `scopeAround`'s "short of the frames n renders itself", `enter` returning `env.base` as the pop mark, and add a line at `walkEvery`'s three-index slice, which three seats found unmarked. Restating: `compileCells`, `columnOrLinked`, `render`'s first line, `categorySites`, `madeFolder`, `categoryOf`, `rendersInside`, `templateSite`, `templateOptions`, `compileFrom`, `flagArg`, `drawSeed`, the `calc` parser's precedence line in `internal/grammar`, and `compileChoice`'s note that a uniform choice draws in O(1), which `choice`'s doc already says. A doc comment `go doc` shows on an exported name stays.

### 112. Check a calc's field operands where its template resolves, beside its name operands, once item 36 reports every mistake at once.

Needs item 36. `checkCalcFields` runs at compile and `checkCalcNames` in `resolveTemplates`, two passes over one rule. Moving the field check there before item 36 would change which of two mistakes in two category files a load reports, since every category compiles before any resolves.

### 172. Pass `drawSteps` the kind of read it draws as an argument of its own, so no caller signals a sibling path by a nil `pins` or a fresh read by a nil `memo`.

Ten seats of the 2026-10-09 panel named `drawSteps` (`path.go`); three named the nil arguments as the mode they had to infer.

### 173. Call what a token reads its spelling, never a name, in `format.go`, `arm.go` and `reference.go`, so a name in the engine is only a bound name.

`checkReads` "proves each name t reads", `splitArm` "splits one name into head and tail" and asks `t.isName` of the result in `compileArm`, and `refTokens` returns "reference names". Both architect seats of the 2026-10-09 panel and the scoring run's architect named the word as one name over several concepts, against the decision "One name, one meaning". Item 136 did this for `internal/grammar`.

### 174. Spell once the fact that a walk's next step leaves a selected row, which `pathPos.fromRow` and `tableRoute.nextLinked` each spell today.

`compileStep` copies one into the other (`path.go`). Two seats of the 2026-10-09 panel named it.

### 108. Name item 26 in the decision "No builtin reads the clock, so a date is bounded by days, never by an age", as the item that ends its conflict with goal 4.

Item 26 revises the decision, but the decision does not point back to it.

### 169. Reword the decision "A parent row with no child row is a load error" to say what each geo import does with such a row: drop it, or exit where `geo-se.py` would lose a kommun or a län.

Its entry says "The import script drops or fills such rows". There are two geo imports, and `geo-se.py` exits when `geo.fence` drops a kommun or a län, while `geo-us.py` drops counties and states. Rewording a decision is the maintainer's call.

### 38. Compare `calcParser.binary`'s operator as a rune.

`byte(p.rs[p.pos])` reads U+012B `ī` as `+`, so `{calc(a ī b)}` compiles as `a + b`.

### 45. Name the node a selector follows in `childNamed`'s refusal.

`sv_SE.person[1].first` answers `1 is not a table`.

### 49. Report a CRLF rows file holding only its header as having no rows.

`parseRows` answers "line 2 is empty".

### 13. Place xlsx cells by their `r` reference in `data-import/xlsx.py`.

A sheet omitting an empty cell shifts every later column left.

### 39. Stop the `columnKinds` suggestion naming a field's own kind or a narrower one.

An `int64` or `float64` field unproven in range is told to become itself, and a `uint64` one to become `int64`.

### 51. Spell a table one way across the errors that name it.

In `internal/rows`, `Pins.PinRow` names `t.path` and `Pins.MustRow` panics with `t.segment`, so one table is `territory` and `misc.territory`, and the short spelling names no file where two folders hold that name.

### 115. Spell a rows file's line one way in every error, naming the file.

Today a cell reads `g.t.b, line 3` (`containedNode.labelIn`), a cell check `t.tsv: line 3, b` (`compileCells`) and a link `t.tsv line 3` (`rows.Table.Link`). A reference cycle found from a table's format through a cell names no line at all: `reference cycle: g.t -> format -> b -> b -> /h -> …`, where the column-to-cell step in `renderEdges` repeats the column name.

### 14. Spell `misc.creditcard`'s digit runs `{digits(n)}`.

A `"repeat": 14` over `{digits(1)}` draws every 14-digit run with the odds `{digits(14)}` does. Both load; make the shipped data write the shorter one. Re-pin seeded output in its own commit.

### 11. Test that every `geo` tree holds the five table names and the `address` columns that port across countries.

Nothing checks it, and a new country breaks it silently.

### 40. Parse `defaultTable`'s path with the library's grammar.

The CLI counts brackets of its own, so a change to the selector grammar desyncs the default `--table` silently.

### 86. Read both `en_US.phone` formats' area codes from one category, as their exchange reads `en_US.phone-exchange`.

Both phone formats carry the same 21-code `area` list, so an edit to one copy can miss the other.

### 23. Give every other shipped category that could reach something real a path that never does.

`phone` draws live PTS and NANP ranges — PTS's five fiction series are the Swedish inert set, sourced in [research-sources-se.md](docs/research/research-sources-se.md), and the NANP one still wants a source — and `bankgiro`, `plusgiro` and `routing` draw live prefixes.

### 75. Run every README `sh`, `go` and `text` example as a test, and compare each "Renders" line to a seeded render.

`readme_test.go` loads and renders each `json` block, but runs no `sh` example (CLI, Records, Table, Linked tables), no `go` example (Library) and no `text` block of error text, and compares no "Renders e.g." output, so goal 12.2 is not met.

### 72. Fail the merge gate when test coverage falls below the last recorded figure.

`technical-principles.md` holds that test coverage should not decline. `docker compose run --rm cover` prints the figure, and neither the `Dockerfile` gate nor `.github/workflows/test.yml` checks it.

### 95. Hold a struct's columns and the field each fills in one slice.

`structShape.fieldIndexes` pairs with its record template's `columns` by index alone, against the technical principle "one owner per value".

### 116. Turn a row index into its rows file's line in one function.

Today `containedNode`'s cell line in `graph.go`, `table.compileCells` and each site in `internal/rows` add the header line and the one-based count.

### 56. Build on a manual run of `test.yml`.

`workflow_dispatch` leaves `github.event.before` empty, so the diff compares `HEAD` with itself and skips `docker build`.

### 109. Indent every script under `data-import/` with hard tabs, as `AGENTS.md` requires and `release-tooling/` does.

Technical principle: indent with hard tabs. All 19 scripts indent with four spaces, so an edit there either keeps the wrong style or rewrites the whole file.

### 63. Pair a street with its exact postnummer.

Needs an application to Lantmäteriet; today a street goes to the nearest postal code centroid. It rewrites shipped rows, so it is a major once 1.0 is cut and a minor before that.

### 62. Add `{btc()}` and `{eth()}`.

They need sha256 and keccak for Base58Check and EIP-55.

### 59. Promise in `Generator`'s godoc that its renders run one at a time.

A caller wanting parallel throughput then makes one generator per goroutine.

### 65. Hold every change `AGENTS.md` says owes a `CHANGELOG.md` entry to one in CI.

The check covers `data` and `testdata/shipped_shape.txt` alone, where `AGENTS.md` adds a flag, an exit code, an exported name, a fence, a builtin and the lowest Go.

### 66. Cut the README's Layout block to the lines that say what a file name cannot.

`doc.go` and `cmd/fejkdata/` restate their names.

### 67. Cut `AGENTS.md` to the rules only it states, and explain every term its comprehension rule uses.

The `gh` rule opens by restating the decision "GitHub is canonical, and the module path names it", a second copy that drifts. The comprehension rule packs the gate, its exceptions, the round and the at-or-above-7.0 regime into one line, and uses "depth 1", "nine-seat", "four-seat" and "answers it in one run" without saying what they mean.

### 64. Give every entry in `docs/decisions.md` the goal it serves, its date, who made it and the premise it rests on.

Propose a goal for an entry that serves none.

### 68. Make `gitea.larvit.se/larvit/fejkdata` a pull mirror of GitHub.

Gitea converts a repository to a mirror only by re-creating it, so until that runs the copy there is a second owner of one history.

### 69. Announce v1.0.0 where a developer choosing a fake-data tool already reads, with a README first screen for someone deciding in a minute.

The human cuts v1.0.0 once the shipped data is in its record shape and one full minor has shipped with no breaking change, per the README's Versioning table; pairing a street with its exact postnummer rewrites shipped rows, so a minor with no breaking change follows it first.