refactor: detect md hard-wraps via mdast AST, not regex

Per review feedback (use a real markdown parser with an AST linked to source positions), rewrite verify-md-wrap to parse each file with mdast-util-from-markdown (the CommonMark parser behind remark) + the GFM extension, then flag any `paragraph` node whose source span covers more than one line. Why a parser over the hand-rolled line scanner: - It is a checker, not a formatter — it reports and never rewrites, so zero cosmetic churn (no emphasis-marker or table-delimiter normalization, which is why Prettier was rejected for this). - The AST owns every structural exemption (fenced code of any fence length, tables, lists, blockquotes, HTML, headings, reference defs), fixing both bugs the regex version had: it now catches wrapped list-item / blockquote prose (a `paragraph` inside those nodes) and no longer false-positives on a longer ```` fence wrapping an inner ```. Also unwrap two pre-existing hard-wrapped blockquotes (architecture.md, adding-a-tool.md) that the stricter AST check correctly surfaced.
2026-06-16 23:35:33 +08:00
parent 67447fcdc3
commit 63425a2b87
5 changed files with 570 additions and 122 deletions
@@ -61,17 +61,7 @@ Swappable capabilities are split into **three packages** so each part evolves in

 The LLM seam has the same topology folded differently: `dsh-llm` carries the interface (`LlmAdapter`) AND the consumer surface (`ctx.llm.stream()`), with adapters as implementation packages — there the consumer is the loop itself, not a swappable schema surface. Use the full three-package split when the consumer is independently replaceable; keep interface + consumer together when they are one concern. Don't split preemptively: a capability with one conceivable implementation and one consumer stays one package until proven otherwise.

-> **"Capability" — two unrelated meanings.** (1) The *seam pattern* above
-> ("one plugin provides a capability, another needs it") is realized by
-> plain Cordis **services + `inject`**: a provider registers a service
-> (`ctx.bash`, declared in `interface Context`); a consumer declares
-> `inject: ['bash']` and its fiber stays pending until the service exists,
-> tearing down via HMR if it later vanishes. No extra library is needed.
-> (2) `@cordisjs/plugin-capability` is a different axis entirely — a
-> **permission/capability-security** service (named permissions with
-> inheritance/dependency, tested against a session via `ctx.capability.test`).
-> It is a candidate for the deferred permissions/sandbox work (the
-> `tools/execute` veto seam), NOT a mechanism for swapping implementations.
+> **"Capability" — two unrelated meanings.** (1) The *seam pattern* above ("one plugin provides a capability, another needs it") is realized by plain Cordis **services + `inject`**: a provider registers a service (`ctx.bash`, declared in `interface Context`); a consumer declares `inject: ['bash']` and its fiber stays pending until the service exists, tearing down via HMR if it later vanishes. No extra library is needed. (2) `@cordisjs/plugin-capability` is a different axis entirely — a **permission/capability-security** service (named permissions with inheritance/dependency, tested against a session via `ctx.capability.test`). It is a candidate for the deferred permissions/sandbox work (the `tools/execute` veto seam), NOT a mechanism for swapping implementations.

 ## The vocabulary (dsh-llm)

@@ -42,9 +42,7 @@ Registration is effect-based: disposing the plugin fiber unregisters the tool (w

 Follow tool-bash's background pattern: a `run_in_background` flag returns a task id immediately; companion tools poll incrementally and kill; completion notices arrive via `agent.inject()`. Bound buffers and spill full output to disk so nothing is silently lost.

-> TODO: each tool reimplements this background pattern by hand today. At some
-> point we need a generic long-running-tool layer that handles task ids,
-> incremental polling, kill, and completion notices uniformly.
+> TODO: each tool reimplements this background pattern by hand today. At some point we need a generic long-running-tool layer that handles task ids, incremental polling, kill, and completion notices uniformly.

 ## Permissions / sandboxing

@@ -35,12 +35,16 @@
  },
  "devDependencies": {
    "@stylistic/eslint-plugin": "^5.10.0",
+    "@types/mdast": "^4.0.4",
    "@types/node": "^25.3.5",
    "@vitest/coverage-v8": "^4.1.8",
    "eslint": "^10.4.1",
    "fast-check": "^4.8.0",
    "knip": "^6.16.1",
    "lefthook": "^2.1.9",
+    "mdast-util-from-markdown": "^2.0.3",
+    "mdast-util-gfm": "^3.1.0",
+    "micromark-extension-gfm": "^3.0.0",
    "publint": "^0.3.21",
    "tsdown": "^0.22.2",
    "tsx": "^4.22.4",
@@ -11,6 +11,9 @@ importers:
      '@stylistic/eslint-plugin':
        specifier: ^5.10.0
        version: 5.10.0(eslint@10.5.0(jiti@2.7.0))
+      '@types/mdast':
+        specifier: ^4.0.4
+        version: 4.0.4
      '@types/node':
        specifier: ^25.3.5
        version: 25.9.3
@@ -29,6 +32,15 @@ importers:
      lefthook:
        specifier: ^2.1.9
        version: 2.1.9
+      mdast-util-from-markdown:
+        specifier: ^2.0.3
+        version: 2.0.3
+      mdast-util-gfm:
+        specifier: ^3.1.0
+        version: 3.1.0
+      micromark-extension-gfm:
+        specifier: ^3.0.0
+        version: 3.0.0
      publint:
        specifier: ^0.3.21
        version: 0.3.21
@@ -1305,6 +1317,9 @@ packages:
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+
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@@ -1320,6 +1335,12 @@ packages:
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+  '@types/mdast@4.0.4':
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+
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+
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+
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    engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
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    engines: {node: '>=20.19.0'}

+  ccount@2.0.1:
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+
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    engines: {node: '>=18'}

+  character-entities@2.0.2:
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+
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    engines: {node: '>= 14.16.0'}
@@ -1534,16 +1564,26 @@ packages:
      supports-color:
        optional: true

+  decode-named-character-reference@1.3.0:
+    resolution: {integrity: sha512-GtpQYB283KrPp6nRw50q3U9/VfOutZOe103qlN7BPP6Ad27xYnOIWv4lPzo8HCAL+mMZofJ9KEy30fq6MfaK6Q==}
+
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+  dequal@2.0.3:
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+    engines: {node: '>=6'}
+
  detect-libc@2.1.2:
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    engines: {node: '>=8'}

+  devlop@1.1.0:
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+
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    engines: {node: ^22.18.0 || >=24.0.0}
@@ -1572,6 +1612,10 @@ packages:
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    engines: {node: '>=10'}

+  escape-string-regexp@5.0.0:
+    resolution: {integrity: sha512-/veY75JbMK4j1yjvuUxuVsiS/hr/4iHs9FTT6cgTexxdE0Ly/glccBAkloH/DofkjRbZU3bnoj38mOmhkZ0lHw==}
+    engines: {node: '>=12'}
+
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    engines: {node: ^20.19.0 || ^22.13.0 || >=24}
@@ -1972,6 +2016,9 @@ packages:
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+
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    engines: {node: '>=10'}

+  markdown-table@3.0.4:
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+
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+
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+
+  micromark-util-resolve-all@2.0.1:
+    resolution: {integrity: sha512-VdQyxFWFT2/FGJgwQnJYbe1jjQoNTS4RjglmSjTUlpUMa95Htx9NHeYW4rGDJzbjvCsl9eLjMQwGeElsqmzcHg==}
+
+  micromark-util-sanitize-uri@2.0.1:
+    resolution: {integrity: sha512-9N9IomZ/YuGGZZmQec1MbgxtlgougxTodVwDzzEouPKo3qFWvymFHWcnDi2vzV1ff6kas9ucW+o3yzJK9YB1AQ==}
+
+  micromark-util-subtokenize@2.1.0:
+    resolution: {integrity: sha512-XQLu552iSctvnEcgXw6+Sx75GflAPNED1qx7eBJ+wydBb2KCbRZe+NwvIEEMM83uml1+2WSXpBAcp9IUCgCYWA==}
+
+  micromark-util-symbol@2.0.1:
+    resolution: {integrity: sha512-vs5t8Apaud9N28kgCrRUdEed4UJ+wWNvicHLPxCa9ENlYuAY31M0ETy5y1vA33YoNPDFTghEbnh6efaE8h4x0Q==}
+
+  micromark-util-types@2.0.2:
+    resolution: {integrity: sha512-Yw0ECSpJoViF1qTU4DC6NwtC4aWGt1EkzaQB8KPPyCRR8z9TWeV0HbEFGTO+ZY1wB22zmxnJqhPyTpOVCpeHTA==}
+
+  micromark@4.0.2:
+    resolution: {integrity: sha512-zpe98Q6kvavpCr1NPVSCMebCKfD7CA2NqZ+rykeNhONIJBpc1tFKt9hucLGwha3jNTNI8lHpctWJWoimVF4PfA==}
+
  minimatch@10.2.5:
    resolution: {integrity: sha512-MULkVLfKGYDFYejP07QOurDLLQpcjk7Fw+7jXS2R2czRQzR56yHRveU5NDJEOviH+hETZKSkIk5c+T23GjFUMg==}
    engines: {node: 18 || 20 || >=22}
@@ -2309,6 +2476,18 @@ packages:
  undici-types@7.24.6:
    resolution: {integrity: sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==}

+  unist-util-is@6.0.1:
+    resolution: {integrity: sha512-LsiILbtBETkDz8I9p1dQ0uyRUWuaQzd/cuEeS1hoRSyW5E5XGmTzlwY1OrNzzakGowI9Dr/I8HVaw4hTtnxy8g==}
+
+  unist-util-stringify-position@4.0.0:
+    resolution: {integrity: sha512-0ASV06AAoKCDkS2+xw5RXJywruurpbC4JZSm7nr7MOt1ojAzvyyaO+UxZf18j8FCF6kmzCZKcAgN/yu2gm2XgQ==}
+
+  unist-util-visit-parents@6.0.2:
+    resolution: {integrity: sha512-goh1s1TBrqSqukSc8wrjwWhL0hiJxgA8m4kFxGlQ+8FYQ3C/m11FcTs4YYem7V664AhHVvgoQLk890Ssdsr2IQ==}
+
+  unist-util-visit@5.1.0:
+    resolution: {integrity: sha512-m+vIdyeCOpdr/QeQCu2EzxX/ohgS8KbnPDgFni4dQsfSCtpz8UqDyY5GjRru8PDKuYn7Fq19j1CQ+nJSsGKOzg==}
+
  uri-js@4.4.1:
    resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}

@@ -2456,6 +2635,9 @@ packages:
  zod@4.4.3:
    resolution: {integrity: sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==}

+  zwitch@2.0.4:
+    resolution: {integrity: sha512-bXE4cR/kVZhKZX/RjPEflHaKVhUVl85noU3v6b8apfQEc1x4A+zBxjZ4lN8LqGd6WZ3dl98pY4o717VFmoPp+A==}
+
 snapshots:

  '@anthropic-ai/sdk@0.91.1(zod@4.4.3)':
@@ -3308,6 +3490,10 @@ snapshots:
      '@types/deep-eql': 4.0.2
      assertion-error: 2.0.1

+  '@types/debug@4.1.13':
+    dependencies:
+      '@types/ms': 2.1.0
+
  '@types/deep-eql@4.0.2': {}

  '@types/esrecurse@4.3.1': {}
@@ -3318,6 +3504,12 @@ snapshots:

  '@types/json-schema@7.0.15': {}

+  '@types/mdast@4.0.4':
+    dependencies:
+      '@types/unist': 3.0.3
+
+  '@types/ms@2.1.0': {}
+
  '@types/node@25.9.3':
    dependencies:
      undici-types: 7.24.6
@@ -3326,6 +3518,8 @@ snapshots:

  '@types/retry@0.12.0': {}

+  '@types/unist@3.0.3': {}
+
  '@typescript-eslint/eslint-plugin@8.61.0(@typescript-eslint/parser@8.61.0(eslint@10.5.0(jiti@2.7.0))(typescript@6.0.3))(eslint@10.5.0(jiti@2.7.0))(typescript@6.0.3)':
    dependencies:
      '@eslint-community/regexpp': 4.12.2
@@ -3525,8 +3719,12 @@ snapshots:

  cac@7.0.0: {}

+  ccount@2.0.1: {}
+
  chai@6.2.2: {}

+  character-entities@2.0.2: {}
+
  chokidar@4.0.3:
    dependencies:
      readdirp: 4.1.2
@@ -3555,12 +3753,22 @@ snapshots:
    dependencies:
      ms: 2.1.3

+  decode-named-character-reference@1.3.0:
+    dependencies:
+      character-entities: 2.0.2
+
  deep-is@0.1.4: {}

  defu@6.1.7: {}

+  dequal@2.0.3: {}
+
  detect-libc@2.1.2: {}

+  devlop@1.1.0:
+    dependencies:
+      dequal: 2.0.3
+
  dts-resolver@3.0.0(oxc-resolver@11.20.0):
    optionalDependencies:
      oxc-resolver: 11.20.0
@@ -3604,6 +3812,8 @@ snapshots:

  escape-string-regexp@4.0.0: {}

+  escape-string-regexp@5.0.0: {}
+
  eslint-scope@9.1.2:
    dependencies:
      '@types/esrecurse': 4.3.1
@@ -4001,6 +4211,8 @@ snapshots:

  long@5.3.2: {}

+  longest-streak@3.1.0: {}
+
  magic-string@0.30.21:
    dependencies:
      '@jridgewell/sourcemap-codec': 1.5.5
@@ -4015,6 +4227,301 @@ snapshots:
    dependencies:
      semver: 7.8.4

+  markdown-table@3.0.4: {}
+
+  mdast-util-find-and-replace@3.0.2:
+    dependencies:
+      '@types/mdast': 4.0.4
+      escape-string-regexp: 5.0.0
+      unist-util-is: 6.0.1
+      unist-util-visit-parents: 6.0.2
+
+  mdast-util-from-markdown@2.0.3:
+    dependencies:
+      '@types/mdast': 4.0.4
+      '@types/unist': 3.0.3
+      decode-named-character-reference: 1.3.0
+      devlop: 1.1.0
+      mdast-util-to-string: 4.0.0
+      micromark: 4.0.2
+      micromark-util-decode-numeric-character-reference: 2.0.2
+      micromark-util-decode-string: 2.0.1
+      micromark-util-normalize-identifier: 2.0.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+      unist-util-stringify-position: 4.0.0
+    transitivePeerDependencies:
+      - supports-color
+
+  mdast-util-gfm-autolink-literal@2.0.1:
+    dependencies:
+      '@types/mdast': 4.0.4
+      ccount: 2.0.1
+      devlop: 1.1.0
+      mdast-util-find-and-replace: 3.0.2
+      micromark-util-character: 2.1.1
+
+  mdast-util-gfm-footnote@2.1.0:
+    dependencies:
+      '@types/mdast': 4.0.4
+      devlop: 1.1.0
+      mdast-util-from-markdown: 2.0.3
+      mdast-util-to-markdown: 2.1.2
+      micromark-util-normalize-identifier: 2.0.1
+    transitivePeerDependencies:
+      - supports-color
+
+  mdast-util-gfm-strikethrough@2.0.0:
+    dependencies:
+      '@types/mdast': 4.0.4
+      mdast-util-from-markdown: 2.0.3
+      mdast-util-to-markdown: 2.1.2
+    transitivePeerDependencies:
+      - supports-color
+
+  mdast-util-gfm-table@2.0.0:
+    dependencies:
+      '@types/mdast': 4.0.4
+      devlop: 1.1.0
+      markdown-table: 3.0.4
+      mdast-util-from-markdown: 2.0.3
+      mdast-util-to-markdown: 2.1.2
+    transitivePeerDependencies:
+      - supports-color
+
+  mdast-util-gfm-task-list-item@2.0.0:
+    dependencies:
+      '@types/mdast': 4.0.4
+      devlop: 1.1.0
+      mdast-util-from-markdown: 2.0.3
+      mdast-util-to-markdown: 2.1.2
+    transitivePeerDependencies:
+      - supports-color
+
+  mdast-util-gfm@3.1.0:
+    dependencies:
+      mdast-util-from-markdown: 2.0.3
+      mdast-util-gfm-autolink-literal: 2.0.1
+      mdast-util-gfm-footnote: 2.1.0
+      mdast-util-gfm-strikethrough: 2.0.0
+      mdast-util-gfm-table: 2.0.0
+      mdast-util-gfm-task-list-item: 2.0.0
+      mdast-util-to-markdown: 2.1.2
+    transitivePeerDependencies:
+      - supports-color
+
+  mdast-util-phrasing@4.1.0:
+    dependencies:
+      '@types/mdast': 4.0.4
+      unist-util-is: 6.0.1
+
+  mdast-util-to-markdown@2.1.2:
+    dependencies:
+      '@types/mdast': 4.0.4
+      '@types/unist': 3.0.3
+      longest-streak: 3.1.0
+      mdast-util-phrasing: 4.1.0
+      mdast-util-to-string: 4.0.0
+      micromark-util-classify-character: 2.0.1
+      micromark-util-decode-string: 2.0.1
+      unist-util-visit: 5.1.0
+      zwitch: 2.0.4
+
+  mdast-util-to-string@4.0.0:
+    dependencies:
+      '@types/mdast': 4.0.4
+
+  micromark-core-commonmark@2.0.3:
+    dependencies:
+      decode-named-character-reference: 1.3.0
+      devlop: 1.1.0
+      micromark-factory-destination: 2.0.1
+      micromark-factory-label: 2.0.1
+      micromark-factory-space: 2.0.1
+      micromark-factory-title: 2.0.1
+      micromark-factory-whitespace: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-chunked: 2.0.1
+      micromark-util-classify-character: 2.0.1
+      micromark-util-html-tag-name: 2.0.1
+      micromark-util-normalize-identifier: 2.0.1
+      micromark-util-resolve-all: 2.0.1
+      micromark-util-subtokenize: 2.1.0
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm-autolink-literal@2.1.0:
+    dependencies:
+      micromark-util-character: 2.1.1
+      micromark-util-sanitize-uri: 2.0.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm-footnote@2.1.0:
+    dependencies:
+      devlop: 1.1.0
+      micromark-core-commonmark: 2.0.3
+      micromark-factory-space: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-normalize-identifier: 2.0.1
+      micromark-util-sanitize-uri: 2.0.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm-strikethrough@2.1.0:
+    dependencies:
+      devlop: 1.1.0
+      micromark-util-chunked: 2.0.1
+      micromark-util-classify-character: 2.0.1
+      micromark-util-resolve-all: 2.0.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm-table@2.1.1:
+    dependencies:
+      devlop: 1.1.0
+      micromark-factory-space: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm-tagfilter@2.0.0:
+    dependencies:
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm-task-list-item@2.1.0:
+    dependencies:
+      devlop: 1.1.0
+      micromark-factory-space: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-extension-gfm@3.0.0:
+    dependencies:
+      micromark-extension-gfm-autolink-literal: 2.1.0
+      micromark-extension-gfm-footnote: 2.1.0
+      micromark-extension-gfm-strikethrough: 2.1.0
+      micromark-extension-gfm-table: 2.1.1
+      micromark-extension-gfm-tagfilter: 2.0.0
+      micromark-extension-gfm-task-list-item: 2.1.0
+      micromark-util-combine-extensions: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-factory-destination@2.0.1:
+    dependencies:
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-factory-label@2.0.1:
+    dependencies:
+      devlop: 1.1.0
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-factory-space@2.0.1:
+    dependencies:
+      micromark-util-character: 2.1.1
+      micromark-util-types: 2.0.2
+
+  micromark-factory-title@2.0.1:
+    dependencies:
+      micromark-factory-space: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-factory-whitespace@2.0.1:
+    dependencies:
+      micromark-factory-space: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-util-character@2.1.1:
+    dependencies:
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-util-chunked@2.0.1:
+    dependencies:
+      micromark-util-symbol: 2.0.1
+
+  micromark-util-classify-character@2.0.1:
+    dependencies:
+      micromark-util-character: 2.1.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-util-combine-extensions@2.0.1:
+    dependencies:
+      micromark-util-chunked: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-util-decode-numeric-character-reference@2.0.2:
+    dependencies:
+      micromark-util-symbol: 2.0.1
+
+  micromark-util-decode-string@2.0.1:
+    dependencies:
+      decode-named-character-reference: 1.3.0
+      micromark-util-character: 2.1.1
+      micromark-util-decode-numeric-character-reference: 2.0.2
+      micromark-util-symbol: 2.0.1
+
+  micromark-util-encode@2.0.1: {}
+
+  micromark-util-html-tag-name@2.0.1: {}
+
+  micromark-util-normalize-identifier@2.0.1:
+    dependencies:
+      micromark-util-symbol: 2.0.1
+
+  micromark-util-resolve-all@2.0.1:
+    dependencies:
+      micromark-util-types: 2.0.2
+
+  micromark-util-sanitize-uri@2.0.1:
+    dependencies:
+      micromark-util-character: 2.1.1
+      micromark-util-encode: 2.0.1
+      micromark-util-symbol: 2.0.1
+
+  micromark-util-subtokenize@2.1.0:
+    dependencies:
+      devlop: 1.1.0
+      micromark-util-chunked: 2.0.1
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+
+  micromark-util-symbol@2.0.1: {}
+
+  micromark-util-types@2.0.2: {}
+
+  micromark@4.0.2:
+    dependencies:
+      '@types/debug': 4.1.13
+      debug: 4.4.3
+      decode-named-character-reference: 1.3.0
+      devlop: 1.1.0
+      micromark-core-commonmark: 2.0.3
+      micromark-factory-space: 2.0.1
+      micromark-util-character: 2.1.1
+      micromark-util-chunked: 2.0.1
+      micromark-util-combine-extensions: 2.0.1
+      micromark-util-decode-numeric-character-reference: 2.0.2
+      micromark-util-encode: 2.0.1
+      micromark-util-normalize-identifier: 2.0.1
+      micromark-util-resolve-all: 2.0.1
+      micromark-util-sanitize-uri: 2.0.1
+      micromark-util-subtokenize: 2.1.0
+      micromark-util-symbol: 2.0.1
+      micromark-util-types: 2.0.2
+    transitivePeerDependencies:
+      - supports-color
+
  minimatch@10.2.5:
    dependencies:
      brace-expansion: 5.0.6
@@ -4353,6 +4860,25 @@ snapshots:

  undici-types@7.24.6: {}

+  unist-util-is@6.0.1:
+    dependencies:
+      '@types/unist': 3.0.3
+
+  unist-util-stringify-position@4.0.0:
+    dependencies:
+      '@types/unist': 3.0.3
+
+  unist-util-visit-parents@6.0.2:
+    dependencies:
+      '@types/unist': 3.0.3
+      unist-util-is: 6.0.1
+
+  unist-util-visit@5.1.0:
+    dependencies:
+      '@types/unist': 3.0.3
+      unist-util-is: 6.0.1
+      unist-util-visit-parents: 6.0.2
+
  uri-js@4.4.1:
    dependencies:
      punycode: 2.3.1
@@ -4438,3 +4964,5 @@ snapshots:
      zod: 4.4.3

  zod@4.4.3: {}
+
+  zwitch@2.0.4: {}
@@ -5,17 +5,22 @@
 * paragraph (a one-word edit reflows and re-diffs the whole block) is a defect
 * this script catches before review.
 *
- * Scope mirrors doc-typecheck plus the two AGENTS.md files that doc-sync does
- * NOT otherwise cover (the convention itself lives there): README.md,
- * docs/** /*.md, packages/* /README.md, AGENTS.md, packages/AGENTS.md. (The
- * root and packages/ CLAUDE.md are symlinks to the AGENTS.md files, so they are
- * skipped to avoid double-reporting.)
+ * Detection is AST-based: we parse each file with mdast-util-from-markdown (the
+ * CommonMark parser behind remark) plus the GFM extension, then flag any
+ * `paragraph` node whose source span covers more than one line. The parser owns
+ * all the structure that legitimately occupies multiple lines — fenced code
+ * (any fence length), tables, list items, blockquotes, HTML blocks, headings,
+ * thematic breaks, link-reference definitions — so a hard wrap is simply "a
+ * paragraph node that starts and ends on different lines." This is checker, not
+ * formatter: it reports and never rewrites, so it introduces zero cosmetic
+ * churn (no emphasis-marker or table-delimiter normalization).
 *
- * A violation is two consecutive *prose* lines — a paragraph that spans
- * physical lines instead of soft-wrapping. Structure that legitimately occupies
- * multiple lines is exempt: fenced code blocks, tables, list items (and their
- * indented continuations), headings, blockquotes, HTML blocks/comments,
- * horizontal rules, and reference-link / footnote definitions.
+ * A wrapped paragraph inside a list item or blockquote is still a `paragraph`
+ * node, so those are caught too. Scope mirrors doc-typecheck plus the two
+ * AGENTS.md files that doc-sync does NOT otherwise cover (the convention itself
+ * lives there): README.md, docs/** /*.md, packages/* /README.md, AGENTS.md,
+ * packages/AGENTS.md. The root and packages/ CLAUDE.md are symlinks to the
+ * AGENTS.md files, so they are deduped by real path.
 *
 * Run: `tsx scripts/verify-md-wrap.ts`.
 */
@@ -23,124 +28,47 @@
 import { readFileSync, realpathSync } from 'node:fs'
 import { relative, resolve } from 'node:path'
 import { glob } from 'node:fs/promises'
+import { fromMarkdown } from 'mdast-util-from-markdown'
+import { gfmFromMarkdown } from 'mdast-util-gfm'
+import { gfm } from 'micromark-extension-gfm'
+import type { Nodes } from 'mdast'

 const root = resolve(import.meta.dirname, '..')

 /** Files to check: doc-typecheck's scope plus the AGENTS.md pair. */
 const PATTERNS = ['README.md', 'docs/**/*.md', 'packages/*/README.md', 'AGENTS.md', 'packages/AGENTS.md']

-/** A located hard-wrap: the second line of a multi-line prose paragraph. */
+/** A located hard-wrap: a prose paragraph spanning more than one source line. */
 interface Violation {
  file: string
-  /** 1-based line number of the offending continuation line. */
+  /** 1-based line where the hard-wrapped paragraph starts. */
  line: number
  text: string
 }

-/**
- * True when a line is *prose* — ordinary paragraph text, not markdown
- * structure. Structural lines (headings, lists, tables, blockquotes, HTML,
- * fences, hrs, reference defs) legitimately stand alone or stack, so they never
- * count toward a hard-wrap pair. Caller handles fenced-code and list-body state.
- */
-function isProse(line: string): boolean {
-  if (line.trim() === '') return false
-  // Up to 3 leading spaces is still a "top-level" block in CommonMark; deeper
-  // indentation is handled as list continuation by the caller.
-  const s = line.replace(/^ {0,3}/, '')
-  if (/^#{1,6}\s/.test(s)) return false // ATX heading
-  if (/^([-*+])\s/.test(s)) return false // bullet list
-  if (/^\d{1,9}[.)]\s/.test(s)) return false // ordered list
-  if (/^>/.test(s)) return false // blockquote
-  if (/^\|/.test(s)) return false // table row
-  if (/^<!--/.test(s) || /-->\s*$/.test(s)) return false // HTML comment line
-  if (/^</.test(s)) return false // HTML block line
-  if (/^([-*_])( *\1){2,}\s*$/.test(s)) return false // thematic break (hr)
-  if (/^\[[^\]]+\]:\s/.test(s)) return false // reference-link / footnote definition
-  if (/^[=-]+\s*$/.test(s)) return false // setext heading underline
-  return true
-}
-
-/** Find every hard-wrapped prose paragraph in one Markdown file. */
+/** Find every hard-wrapped prose paragraph in one Markdown file via its AST. */
 function findViolations(absPath: string): Violation[] {
  const file = relative(root, absPath)
-  const lines = readFileSync(absPath, 'utf8').split('\n')
+  const source = readFileSync(absPath, 'utf8')
+  const tree = fromMarkdown(source, { extensions: [gfm()], mdastExtensions: [gfmFromMarkdown()] })
  const out: Violation[] = []

-  let inFence = false
-  let fenceMarker = '' // '```' or '~~~'
-  let inComment = false // inside a multi-line <!-- … --> HTML comment
-  let inListItem = false // inside a list item's body (its indented continuations)
-  let prevWasProse = false
-
-  lines.forEach((raw, i) => {
-    const trimmed = raw.trim()
-
-    // Fenced code blocks: everything between matching fences is exempt.
-    const fence = /^ {0,3}(```+|~~~+)/.exec(raw)
-    if (fence) {
-      const marker = (fence[1] ?? '').startsWith('`') ? '```' : '~~~'
-      if (!inFence) {
-        inFence = true
-        fenceMarker = marker
-      } else if (marker === fenceMarker) {
-        inFence = false
+  const visit = (node: Nodes): void => {
+    if (node.type === 'paragraph' && node.position) {
+      const { start, end } = node.position
+      if (end.line > start.line) {
+        const firstLine = source.split('\n')[start.line - 1] ?? ''
+        out.push({ file, line: start.line, text: firstLine.trim() })
      }
-      prevWasProse = false
+      // A paragraph's children are inline (text/emphasis/…); no nested
+      // paragraphs to find, so don't descend.
      return
    }
-    if (inFence) {
-      prevWasProse = false
-      return
+    if ('children' in node) {
+      for (const child of node.children) visit(child)
    }
-
-    // Multi-line HTML comments are exempt (e.g. generated-file headers). Track
-    // open/close across lines so the body of a 3+ line comment isn't read as
-    // hard-wrapped prose.
-    if (inComment) {
-      if (/-->/.test(raw)) inComment = false
-      prevWasProse = false
-      return
-    }
-    if (/^ {0,3}<!--/.test(raw) && !/-->/.test(raw)) {
-      inComment = true
-      prevWasProse = false
-      return
-    }
-
-    if (trimmed === '') {
-      inListItem = false
-      prevWasProse = false
-      return
-    }
-
-    // Track list context so an item's wrapped continuation lines (indented or
-    // lazy) are treated as list structure, not a hard-wrapped prose paragraph.
-    const isListMarker = /^ {0,3}([-*+]|\d{1,9}[.)])\s/.test(raw)
-    if (isListMarker) {
-      inListItem = true
-      prevWasProse = false
-      return
-    }
-    if (inListItem) {
-      // Indented under the item, or lazy continuation — still the list item.
-      prevWasProse = false
-      return
-    }
-
-    if (!isProse(raw)) {
-      prevWasProse = false
-      return
-    }
-
-    // A prose line. If the line before it was also prose, the paragraph spans
-    // physical lines — a hard wrap.
-    if (prevWasProse) {
-      out.push({ file, line: i + 1, text: trimmed })
-    }
-    prevWasProse = true
-  })
-
+  }
+  visit(tree)
  return out
 }