32 - §8's depth sentences say what the guard does, and item 32 moves to history

AGENTS.md

@@ -158,20 +158,14 @@ converts no raw HTML, so at `0.2.0` the mapped elements stop erroring and the co
 no ADF node carries. A refusal found before its path is known — the block walk's, a directive
 reader's — is a `ConvertFault`, the code and message alone; the node walk attaches the path as it
 descends, so a document reports its first error in document order. `not-an-adf-document` carries
-the document's own path throughout: eight of the guard's nine branches read the document's own
+the document's own path throughout: seven of the guard's eight branches read the document's own
-shape, and threading a path to the ninth — a malformed node anywhere in the tree — wants the
+shape, and threading a path to the eighth — a malformed node anywhere in the tree — wants the
 manual stack §11's no-recursion rule forces, whose empty half no input reaches. The message names
-the violation instead. Depth is not one of the nine: `adfDocumentFault` returns the code with the
+the violation instead. An attribute value past 500 levels is `unsupported-nesting-depth` in both
-message, so an attribute value past 500 levels is `unsupported-nesting-depth` from the emitter as
+directions, the guard included. An attribute is counted from its value; a spelling that nests it
-it already is from the parser, both directions refusing the same value. An attribute, a node's or
+deeper — the block directive's `marks`, the carry — refuses in its own format, as its parser does.
-a mark's, is counted from the value itself, never from the `attrs` object holding it; a spelling
+A non-finite number takes two codes: `unsupported-node-shape` parsing, `not-an-adf-document`
-nesting the value deeper — the block directive's marks attribute, three levels in, or the carry —
+emitting — no document holds one, so no round-trip crosses them.
-refuses in its own format, as that format's parser does. `isAdfDocument` is true for a depth fault:
-a deep document is a document, as the 2000-level blocks and the 600-deep marks the guard already
-waves through are, and depth is the walks' answer rather than the shape's. A non-finite number
-stays parted where depth is joined: the parse says `unsupported-node-shape` because the markdown is
-at fault, the emit `not-an-adf-document` because the input is, and unlike depth nothing round-trips
-inconsistently between them.
 
 `position` is the parse side's alone: an emitter reads no source, so an emit error carries `path`
 and nothing more. It is `{ line, offset }` at the start of the line the block holding the refusal

todo-history.md

@@ -1018,6 +1018,18 @@ The done `todo.md` items in full, as they were written. `todo.md` keeps a one-li
       `parse/` imports `emit/` twice — `commonMarkSpelling` and `openingLinkTakesDirective` — and
       §11 says those two are the whole of the seam a `../emit/` grep under `parse/` reads.
 
+- [x] **32 — The mark depth `adf/` counts is stated in ADF's terms (`0.2.0`).**
+      `document.ts`'s `markAttributeNesting` is `largestNesting - 3`, and both the comment above it
+      and AGENTS.md §8 give the reason as markdown's: the block directive spells the whole mark set
+      as one JSON attribute, so the parser reads the value at the bottom of array, mark and
+      `attrs`. That is a format's spelling deciding a constant inside the directory §11 forbids to
+      know a format. Move the derivation to where that spelling lives, or state the three levels in
+      ADF's own vocabulary. Before 7 gives the constant a second format whose spelling may not
+      spend the same three levels.
+      **Done** (2026-09-23): `adf/` counts a mark's attribute from its value at 500, as a node's;
+      the block directive's `marks` spelling refuses its own over-deep JSON with the parser's
+      message and the node's path, and §8 says a deeper spelling refuses in its own format.
+
 ## 5 — Ship `0.1.0`
 
 - [ ] **5 — Ship `0.1.0`.** Only the maintainer's own acts are left (§15): make the Gitea repo

todo.md

@@ -56,14 +56,6 @@ chunk clearing a §11 seam.
       upward, so the first raise to the measured figure reddens a run that changed nothing. Make
       the measurement repeatable, or state the number the floor may be raised to and why it is not
       the measured one.
-- [ ] **32 — The mark depth `adf/` counts is stated in ADF's terms (`0.2.0`).**
-      `document.ts`'s `markAttributeNesting` is `largestNesting - 3`, and both the comment above it
-      and AGENTS.md §8 give the reason as markdown's: the block directive spells the whole mark set
-      as one JSON attribute, so the parser reads the value at the bottom of array, mark and
-      `attrs`. That is a format's spelling deciding a constant inside the directory §11 forbids to
-      know a format. Move the derivation to where that spelling lives, or state the three levels in
-      ADF's own vocabulary. Before 7 gives the constant a second format whose spelling may not
-      spend the same three levels.
 - [ ] **23 — The block-directive fragments are one file (`0.2.0`).** `block-directive-arguments.ts`,
       `-forms.ts` and `-marks.ts` are three files under 25 lines answering one question. Fold them,
       and take `src/markdown/` — the worst level both architects named, 13 entries with no
@@ -292,6 +284,7 @@ chunk clearing a §11 seam.
 - [x] **28 — `emitLine`'s retry loop cannot spin (`0.2.0`).**
 - [x] **29 — The README reads raw HTML as refused for good (`0.2.0`).**
 - [x] **30 — AGENTS.md says each thing once (`0.2.0`).**
+- [x] **32 — The mark depth `adf/` counts is stated in ADF's terms (`0.2.0`).**
 
 ## The ADF inventory to cover