diff --git a/javascript/packages/linter/docs/rules/README.md b/javascript/packages/linter/docs/rules/README.md
index 93f5541fd..4ac203b84 100644
--- a/javascript/packages/linter/docs/rules/README.md
+++ b/javascript/packages/linter/docs/rules/README.md
@@ -8,6 +8,7 @@ This page contains documentation for all Herb Linter rules.
 
 - [`a11y-avoid-generic-link-text`](./a11y-avoid-generic-link-text.md) - Avoid generic link text like "Click here" or "Read more"
 - [`a11y-disabled-attribute`](./a11y-disabled-attribute.md) - Prevent usage of the `disabled` attribute on unsupported elements
+- [`a11y-nested-interactive-elements`](./a11y-nested-interactive-elements.md) - Disallow nesting interactive elements
 - [`a11y-no-accesskey-attribute`](./a11y-no-accesskey-attribute.md) - Prevent usage of the `accesskey` attribute
 - [`a11y-no-aria-label-misuse`](./a11y-no-aria-label-misuse.md) - Prevent `aria-label` and `aria-labelledby` on non-interactive elements
 - [`a11y-no-aria-unsupported-elements`](./a11y-no-aria-unsupported-elements.md) - Prevent usage of ARIA on unsupported elements
diff --git a/javascript/packages/linter/docs/rules/a11y-nested-interactive-elements.md b/javascript/packages/linter/docs/rules/a11y-nested-interactive-elements.md
new file mode 100644
index 000000000..6958b1967
--- /dev/null
+++ b/javascript/packages/linter/docs/rules/a11y-nested-interactive-elements.md
@@ -0,0 +1,65 @@
+# Linter Rule: No nested interactive elements
+
+**Rule:** `a11y-nested-interactive-elements`
+
+## Description
+
+Disallow nesting interactive elements inside other interactive elements. Interactive controls such as `<button>`, `<summary>`, `<input>`, `<select>`, `<textarea>`, or `<a>` must not contain other interactive elements.
+
+## Rationale
+
+Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.
+
+## Exceptions
+
+- `<a>` inside `<summary>` is allowed.
+- `<input type="hidden">` is not considered an interactive element.
+
+## Examples
+
+### ✅ Good
+
+```erb
+<button>Confirm</button>
+```
+
+```erb
+<a href="/about">About</a>
+```
+
+```erb
+<div><a href="/about">About</a></div>
+```
+
+```erb
+<summary><a href="/about">About</a></summary>
+```
+
+```erb
+<button><input type="hidden" name="token" /></button>
+```
+
+### 🚫 Bad
+
+```erb
+<button><a href="https://github.com/">Go to GitHub</a></button>
+```
+
+```erb
+<a href="/about"><button>Click</button></a>
+```
+
+```erb
+<button><select><option>A</option></select></button>
+```
+
+```erb
+<button><input type="text" /></button>
+```
+
+## References
+
+- [erblint-github: NestedInteractiveElements](https://github.com/github/erblint-github/blob/main/lib/erblint-github/linters/github/accessibility/nested_interactive_elements.rb)
+- [erblint-github docs](https://github.com/github/erblint-github/blob/main/docs/rules/accessibility/nested-interactive-elements.md)
+- [Deque University: nested-interactive](https://dequeuniversity.com/rules/axe/4.8/nested-interactive)
+- [Accessibility Insights](https://accessibilityinsights.io/info-examples/web/nested-interactive/)
diff --git a/javascript/packages/linter/src/rules.ts b/javascript/packages/linter/src/rules.ts
index 89c2318f8..b960ce2f2 100644
--- a/javascript/packages/linter/src/rules.ts
+++ b/javascript/packages/linter/src/rules.ts
@@ -2,6 +2,7 @@ import type { RuleClass } from "./types.js"
 
 import { A11yAvoidGenericLinkTextRule } from "./rules/a11y-avoid-generic-link-text.js"
 import { A11yDisabledAttributeRule } from "./rules/a11y-disabled-attribute.js"
+import { A11yNestedInteractiveElementsRule } from "./rules/a11y-nested-interactive-elements.js"
 import { A11yNoAccesskeyAttributeRule } from "./rules/a11y-no-accesskey-attribute.js"
 import { A11yNoAriaLabelMisuseRule } from "./rules/a11y-no-aria-label-misuse.js"
 import { A11yNoAriaUnsupportedElementsRule } from "./rules/a11y-no-aria-unsupported-elements.js"
@@ -110,6 +111,7 @@ import { TurboPermanentRequireIdRule } from "./rules/turbo-permanent-require-id.
 export const rules: RuleClass[] = [
   A11yAvoidGenericLinkTextRule,
   A11yDisabledAttributeRule,
+  A11yNestedInteractiveElementsRule,
   A11yNoAccesskeyAttributeRule,
   A11yNoAriaLabelMisuseRule,
   A11yNoAriaUnsupportedElementsRule,
diff --git a/javascript/packages/linter/src/rules/a11y-nested-interactive-elements.ts b/javascript/packages/linter/src/rules/a11y-nested-interactive-elements.ts
new file mode 100644
index 000000000..5e4be1e8b
--- /dev/null
+++ b/javascript/packages/linter/src/rules/a11y-nested-interactive-elements.ts
@@ -0,0 +1,76 @@
+import { ElementStackVisitor } from "./rule-utils.js"
+import { getTagLocalName, getStaticAttributeValue } from "@herb-tools/core"
+
+import { ParserRule } from "../types.js"
+import type { UnboundLintOffense, LintContext, FullRuleConfig } from "../types.js"
+import type { HTMLElementNode, ParseResult, ParserOptions } from "@herb-tools/core"
+
+const INTERACTIVE_ELEMENTS = new Set([
+  "a",
+  "button",
+  "input",
+  "select",
+  "summary",
+  "textarea",
+])
+
+class NestedInteractiveElementsVisitor extends ElementStackVisitor {
+  visitHTMLElementNode(node: HTMLElementNode): void {
+    const tagName = getTagLocalName(node)
+
+    if (tagName && INTERACTIVE_ELEMENTS.has(tagName)) {
+      if (tagName === "input" && getStaticAttributeValue(node, "type") === "hidden") {
+        super.visitHTMLElementNode(node)
+        return
+      }
+
+      const ancestor = this.findInteractiveAncestor(tagName)
+
+      if (ancestor) {
+        this.addOffense(
+          `Found \`<${tagName}>\` nested inside of \`<${ancestor}>\`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.`,
+          node.location,
+        )
+      }
+    }
+
+    super.visitHTMLElementNode(node)
+  }
+
+  private findInteractiveAncestor(childTagName: string): string | null {
+    for (const ancestor of this.ancestors) {
+      const ancestorTag = getTagLocalName(ancestor)
+
+      if (!ancestorTag || !INTERACTIVE_ELEMENTS.has(ancestorTag)) continue
+      if (ancestorTag === "summary" && childTagName === "a") continue
+
+      return ancestorTag
+    }
+
+    return null
+  }
+}
+
+export class A11yNestedInteractiveElementsRule extends ParserRule {
+  static ruleName = "a11y-nested-interactive-elements"
+  static introducedIn = this.version("unreleased")
+
+  get defaultConfig(): FullRuleConfig {
+    return {
+      enabled: false,
+      severity: "error"
+    }
+  }
+
+  get parserOptions(): Partial<ParserOptions> {
+    return {
+      action_view_helpers: true,
+    }
+  }
+
+  check(result: ParseResult, context?: Partial<LintContext>): UnboundLintOffense[] {
+    const visitor = new NestedInteractiveElementsVisitor(this.ruleName, context)
+    visitor.visit(result.value)
+    return visitor.offenses
+  }
+}
diff --git a/javascript/packages/linter/src/rules/index.ts b/javascript/packages/linter/src/rules/index.ts
index e079641f1..12171b8d7 100644
--- a/javascript/packages/linter/src/rules/index.ts
+++ b/javascript/packages/linter/src/rules/index.ts
@@ -1,5 +1,6 @@
 export * from "./a11y-avoid-generic-link-text.js"
 export * from "./a11y-disabled-attribute.js"
+export * from "./a11y-nested-interactive-elements.js"
 export * from "./a11y-no-accesskey-attribute.js"
 export * from "./a11y-no-aria-label-misuse.js"
 export * from "./a11y-no-aria-unsupported-elements.js"
diff --git a/javascript/packages/linter/src/rules/rule-utils.ts b/javascript/packages/linter/src/rules/rule-utils.ts
index 2e70e27e1..c585fb207 100644
--- a/javascript/packages/linter/src/rules/rule-utils.ts
+++ b/javascript/packages/linter/src/rules/rule-utils.ts
@@ -226,6 +226,13 @@ export abstract class ElementStackVisitor<TAutofixContext extends BaseAutofixCon
     })
   }
 
+  /**
+   * All ancestor HTML elements, from outermost to innermost.
+   */
+  protected get ancestors(): readonly HTMLElementNode[] {
+    return this.elementStack
+  }
+
   /**
    * The current nesting depth (number of ancestor HTML elements).
    */
diff --git a/javascript/packages/linter/test/__snapshots__/cli.test.ts.snap b/javascript/packages/linter/test/__snapshots__/cli.test.ts.snap
index f726878e3..8888e0b32 100644
--- a/javascript/packages/linter/test/__snapshots__/cli.test.ts.snap
+++ b/javascript/packages/linter/test/__snapshots__/cli.test.ts.snap
@@ -111,7 +111,7 @@ test/fixtures/ignored.html.erb:8:8
   Offenses     5 errors | 2 warnings (7 offenses across 1 file)
   Note         3 additional offenses reported (would have been ignored)
   Fixable      7 offenses | 4 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > Excluded Files > skips excluded file in subdirectory with README.md project indicator 1`] = `
@@ -177,7 +177,7 @@ test/fixtures/test-file-with-errors.html.erb:2:22
   Checked      1 file
   Offenses     2 errors | 1 warning (3 offenses across 1 file)
   Fixable      3 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > GitHub Actions format includes rule codes 1`] = `
@@ -202,7 +202,7 @@ test/fixtures/no-trailing-newline.html.erb:1:29
   Checked      1 file
   Offenses     1 error | 0 warnings (1 offense across 1 file)
   Fixable      1 offense | 1 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > GitHub Actions format includes rule codes 2`] = `
@@ -266,7 +266,7 @@ test/fixtures/erb-no-extra-whitespace-inside-tags.html.erb:1:4
   Checked      1 file
   Offenses     4 errors | 0 warnings (4 offenses across 1 file)
   Fixable      4 offenses | 3 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > Ignores disabled rules 1`] = `
@@ -307,7 +307,7 @@ test/fixtures/ignored.html.erb:6:14
   Checked      1 file
   Offenses     2 errors | 0 warnings | 3 ignored (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > allows tag.attributes in attribute position 1`] = `
@@ -346,7 +346,7 @@ test/fixtures/tag-attributes.html.erb:5:0
   Checked      1 file
   Offenses     2 warnings (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > diplays only parsers errors if one is present 1`] = `
@@ -372,7 +372,7 @@ test/fixtures/parser-errors.html.erb:2:16
   Checked      1 file
   Offenses     1 error | 0 warnings (1 offense across 1 file)
   Fixable      0 offenses
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > displays most violated rules with multiple offenses 1`] = `
@@ -587,7 +587,7 @@ test/fixtures/multiple-rule-offenses.html.erb:4:7
   Checked      1 file
   Offenses     8 errors | 6 warnings (14 offenses across 1 file)
   Fixable      14 offenses | 4 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > displays rule offenses when showing all rules 1`] = `
@@ -684,7 +684,7 @@ test/fixtures/few-rule-offenses.html.erb:6:0
   Checked      1 file
   Offenses     4 errors | 2 warnings (6 offenses across 1 file)
   Fixable      6 offenses | 3 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats GitHub Actions output correctly for bad file 1`] = `
@@ -723,7 +723,7 @@ test/fixtures/bad-file.html.erb:1:16
   Checked      1 file
   Offenses     2 errors | 0 warnings (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats GitHub Actions output correctly for clean file 1`] = `
@@ -735,7 +735,7 @@ exports[`CLI Output Formatting > formats GitHub Actions output correctly for cle
   Checked      1 file
   Offenses     0 offenses
   Fixable      0 offenses
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats GitHub Actions output correctly for file with errors 1`] = `
@@ -795,7 +795,7 @@ test/fixtures/test-file-with-errors.html.erb:2:22
   Checked      1 file
   Offenses     2 errors | 1 warning (3 offenses across 1 file)
   Fixable      3 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats GitHub Actions output with --format=github option 1`] = `
@@ -834,7 +834,7 @@ test/fixtures/test-file-simple.html.erb:2:22
   Checked      1 file
   Offenses     2 errors | 0 warnings (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats JSON output correctly for bad file 1`] = `
@@ -1038,7 +1038,7 @@ test/fixtures/test-file-with-errors.html.erb:2:22
   Checked      1 file
   Offenses     2 errors | 1 warning (3 offenses across 1 file)
   Fixable      3 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats simple output correctly 1`] = `
@@ -1057,7 +1057,7 @@ test/fixtures/test-file-simple.html.erb:
   Checked      1 file
   Offenses     2 errors | 0 warnings (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats simple output for bad-file correctly 1`] = `
@@ -1076,7 +1076,7 @@ test/fixtures/bad-file.html.erb:
   Checked      1 file
   Offenses     2 errors | 0 warnings (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats success output correctly 1`] = `
@@ -1088,7 +1088,7 @@ exports[`CLI Output Formatting > formats success output correctly 1`] = `
   Checked      1 file
   Offenses     0 offenses
   Fixable      0 offenses
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > handles boolean attributes 1`] = `
@@ -1100,7 +1100,7 @@ exports[`CLI Output Formatting > handles boolean attributes 1`] = `
   Checked      1 file
   Offenses     0 offenses
   Fixable      0 offenses
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > handles multiple errors correctly 1`] = `
@@ -1135,7 +1135,7 @@ test/fixtures/bad-file.html.erb:1:16
   Checked      1 file
   Offenses     2 errors | 0 warnings (2 offenses across 1 file)
   Fixable      2 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > herb:disable rules 1`] = `
@@ -1267,7 +1267,7 @@ test/fixtures/disabled-1.html.erb:14:19
   Checked      1 file
   Offenses     2 errors | 6 warnings | 8 ignored (8 offenses across 1 file)
   Fixable      8 offenses | 1 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > herb:disable rules 2`] = `
@@ -1470,7 +1470,7 @@ test/fixtures/disabled-2.html.erb:2:44
   Checked      1 file
   Offenses     6 errors | 7 warnings | 5 ignored (13 offenses across 1 file)
   Fixable      13 offenses | 6 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > uses GitHub Actions format by default when GITHUB_ACTIONS is true 1`] = `
@@ -1530,5 +1530,5 @@ test/fixtures/test-file-with-errors.html.erb:2:22
   Checked      1 file
   Offenses     2 errors | 1 warning (3 offenses across 1 file)
   Fixable      3 offenses | 2 autocorrectable using \`--fix\`
-  Rules        83 enabled | 15 not enabled"
+  Rules        83 enabled | 16 not enabled"
 `;
diff --git a/javascript/packages/linter/test/rules/a11y-nested-interactive-elements.test.ts b/javascript/packages/linter/test/rules/a11y-nested-interactive-elements.test.ts
new file mode 100644
index 000000000..96688126f
--- /dev/null
+++ b/javascript/packages/linter/test/rules/a11y-nested-interactive-elements.test.ts
@@ -0,0 +1,132 @@
+import { describe, test } from "vitest"
+import { A11yNestedInteractiveElementsRule } from "../../src/rules/a11y-nested-interactive-elements.js"
+import { createLinterTest } from "../helpers/linter-test-helper.js"
+
+const { expectNoOffenses, expectError, assertOffenses } = createLinterTest(A11yNestedInteractiveElementsRule)
+
+describe("a11y-nested-interactive-elements", () => {
+  test("passes for button without nested interactive elements", () => {
+    expectNoOffenses('<button>Confirm</button>')
+  })
+
+  test("passes for anchor without nested interactive elements", () => {
+    expectNoOffenses('<a href="/about">About</a>')
+  })
+
+  test("passes for non-interactive parent with interactive child", () => {
+    expectNoOffenses('<div><a href="/about">About</a></div>')
+  })
+
+  test("passes for summary with nested anchor (allowed exception)", () => {
+    expectNoOffenses('<summary><a href="/about">About</a></summary>')
+  })
+
+  test("passes for hidden input inside button", () => {
+    expectNoOffenses('<button><input type="hidden" name="token" /></button>')
+  })
+
+  test("fails for anchor nested inside button", () => {
+    expectError('Found `<a>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><a href="https://github.com/">Go to GitHub</a></button>')
+  })
+
+  test("fails for button nested inside anchor", () => {
+    expectError('Found `<button>` nested inside of `<a>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<a href="/about"><button>Click</button></a>')
+  })
+
+  test("fails for select nested inside button", () => {
+    expectError('Found `<select>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><select><option>A</option></select></button>')
+  })
+
+  test("fails for textarea nested inside anchor", () => {
+    expectError('Found `<textarea>` nested inside of `<a>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<a href="/edit"><textarea></textarea></a>')
+  })
+
+  test("fails for input nested inside button", () => {
+    expectError('Found `<input>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><input type="text" /></button>')
+  })
+
+  test("fails for anchor deeply nested inside button", () => {
+    expectError('Found `<a>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><span><a href="#">Link</a></span></button>')
+  })
+
+  test("fails for input deeply nested inside anchor", () => {
+    expectError('Found `<input>` nested inside of `<a>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<a href="#"><div><input type="text" /></div></a>')
+  })
+
+  test("fails for input with dynamic type inside button", () => {
+    expectError('Found `<input>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><input type="<%= type %>" /></button>')
+  })
+
+  test("passes for div with role=button containing anchor", () => {
+    expectNoOffenses('<div role="button"><a href="#">Link</a></div>')
+  })
+
+  test("fails for tag.a nested inside tag.button", () => {
+    expectError('Found `<a>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<%= tag.button do %><%= link_to "Click", "#" %><% end %>')
+  })
+
+  test("passes for tag.button without nested interactive elements", () => {
+    expectNoOffenses('<%= tag.button "Confirm" %>')
+  })
+
+  test("fails for button with nested link_to", () => {
+    expectError('Found `<a>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><%= link_to "Click", "#" %></button>')
+  })
+
+  test("fails for link_to block with nested button", () => {
+    expectError('Found `<button>` nested inside of `<a>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<%= link_to "#" do %><button>Click</button><% end %>')
+  })
+
+  test("fails for link_to block with nested tag.button", () => {
+    expectError('Found `<button>` nested inside of `<a>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<%= link_to "#" do %><%= tag.button "Click" %><% end %>')
+  })
+
+  test("passes for link_to block with non-interactive content", () => {
+    expectNoOffenses('<%= link_to "#" do %><%= tag.span "Click" %><% end %>')
+  })
+
+  test("passes for tag.summary with nested link_to", () => {
+    expectNoOffenses('<%= tag.summary do %><%= link_to "Details", "#" %><% end %>')
+  })
+
+  test("fails for tag.button with nested tag.select", () => {
+    expectError('Found `<select>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<%= tag.button do %><%= tag.select do %><option>A</option><% end %><% end %>')
+  })
+
+  test("passes for tag.button with nested hidden input", () => {
+    expectNoOffenses('<%= tag.button do %><%= tag.input type: "hidden", name: "token" %><% end %>')
+  })
+
+  test("reports multiple offenses for multiple nested interactive elements", () => {
+    expectError('Found `<a>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+    expectError('Found `<input>` nested inside of `<button>`. Nesting interactive elements produces invalid HTML, and assistive technologies, such as screen readers, might ignore or respond unexpectedly to such nested controls.')
+
+    assertOffenses('<button><a href="#">Link</a><input type="text" /></button>')
+  })
+})