Answer principles round 1: 0 🔴, 7 🟡; mint task ids within the engine limits, fold == into inline-tokens.ts, keep one frame per quote level, pass the list's path once

src/markdown/parse/inline-content.ts

@@ -10,10 +10,9 @@ import { commonMarkLink, linkHref, linkMark } from '../mark-spellings.ts'
 import { decodeTextEscapes, trimTrailingSpace } from '../commonmark/grammar.ts'
 import { failure, faulted, success, type ConvertErrorPath, type Result } from '../../result.ts'
 import { flavourClaims } from '../flavour.ts'
-import { highlightDelimiter } from '../highlight-syntax.ts'
+import { highlightDelimiter, inlineSource, readInlineToken } from '../inline-tokens.ts'
 import { identicalMarks, mergeAdjacentText, nodeAttrs, nodeMarks } from '../../adf/document.ts'
 import { inlineNodeModel, takesMark } from '../../adf/inline-nodes.ts'
-import { inlineSource, readInlineToken } from '../inline-tokens.ts'
 import { joinsWhenRead, textBreakName, textBreakSpelling } from '../adjacent-text.ts'
 import { matchEmphasis } from '../commonmark/emphasis-matching.ts'
 import { normalizeLabel, readInlineTarget, readLabel } from '../commonmark/link-syntax.ts'

src/markdown/parse/markdown-to-adf.ts

@@ -19,9 +19,9 @@ import { spellStringAttribute, unsupportedNodeShape } from '../directive/syntax.
 import { spellsEmpty } from '../directive/empty-keys.ts'
 import { withinEngineLimits } from '../length-bound.ts'
 
-// A flavour's own reading of a quote and of a bullet list, which may read to several blocks.
+// A flavour's own reading of a quote and of a bullet list, which may read to several blocks; `path` is the container's, `index` the list's among its blocks.
 export type FlavourBlockReaders = {
-  bulletList: (items: readonly Block[][], reading: FlavourReading, path: ConvertErrorPath, depth: number, listIndex: number) => Result<AdfNode[]>
+  bulletList: (items: readonly Block[][], reading: FlavourReading, path: ConvertErrorPath, depth: number, index: number) => Result<AdfNode[]>
   quote: (blocks: readonly Block[], reading: FlavourReading, path: ConvertErrorPath, depth: number) => Result<AdfNode>
 }
 
@@ -77,7 +77,7 @@ export function readBlocks(blocks: readonly Block[], reading: Reading, path: Con
       return positioned(faulted(fault, nodePath), block.position)
     }
     if (block.kind === 'bulletList' && reading.flavour === 'portable') {
-      const listed = positioned(reading.blocks.bulletList(block.items, reading, nodePath, depth, content.length), block.position)
+      const listed = positioned(reading.blocks.bulletList(block.items, reading, path, depth, content.length), block.position)
       if (!listed.ok) return listed
       for (const node of listed.value) content.push(node)
       continue