diff --git a/javascript/packages/linter/docs/rules/README.md b/javascript/packages/linter/docs/rules/README.md
index 4ac203b84..5c88667e4 100644
--- a/javascript/packages/linter/docs/rules/README.md
+++ b/javascript/packages/linter/docs/rules/README.md
@@ -135,6 +135,7 @@ This page contains documentation for all Herb Linter rules.
 
 #### Turbo
 
+- [`turbo-permanent-no-misleading-value`](./turbo-permanent-no-misleading-value.md) - Disallow misleading values on `data-turbo-permanent`
 - [`turbo-permanent-require-id`](./turbo-permanent-require-id.md) - Require `id` attribute on elements with `data-turbo-permanent`
 
 
diff --git a/javascript/packages/linter/docs/rules/turbo-permanent-no-misleading-value.md b/javascript/packages/linter/docs/rules/turbo-permanent-no-misleading-value.md
new file mode 100644
index 000000000..b5d64eb3f
--- /dev/null
+++ b/javascript/packages/linter/docs/rules/turbo-permanent-no-misleading-value.md
@@ -0,0 +1,32 @@
+# Linter Rule: Disallow misleading values on `data-turbo-permanent`
+
+**Rule:** `turbo-permanent-no-misleading-value`
+
+## Description
+
+Ensure that `data-turbo-permanent` is used correctly on HTML elements. The `data-turbo-permanent` attribute marks elements that should persist across page navigations in Turbo Drive.
+
+## Rationale
+
+`data-turbo-permanent` is active whenever the attribute is present, so `data-turbo-permanent="false"` behaves the same as `data-turbo-permanent` or `data-turbo-permanent="true"`. Allowing values is misleading and should be disallowed to avoid confusion.
+
+## Examples
+
+### ✅ Good
+
+```html
+<div id="cart-counter" data-turbo-permanent>1 item</div>
+```
+
+### 🚫 Bad
+
+```html
+<div id="cart-counter" data-turbo-permanent="true">1 item</div>
+<div id="cart-counter" data-turbo-permanent="false">1 item</div>
+<div id="cart-counter" data-turbo-permanent="foo">1 item</div>
+```
+
+## References
+
+- [Turbo: `data-turbo-permanent` attribute](https://turbo.hotwired.dev/handbook/drive#permanent-elements)
+- [HTML: Boolean Attributes](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML)
diff --git a/javascript/packages/linter/src/rules.ts b/javascript/packages/linter/src/rules.ts
index b960ce2f2..f7bef916b 100644
--- a/javascript/packages/linter/src/rules.ts
+++ b/javascript/packages/linter/src/rules.ts
@@ -106,6 +106,7 @@ import { SourceIndentationRule } from "./rules/source-indentation.js"
 
 import { SVGTagNameCapitalizationRule } from "./rules/svg-tag-name-capitalization.js"
 
+import { TurboPermanentNoMisleadingValueRule } from "./rules/turbo-permanent-no-misleading-value.js"
 import { TurboPermanentRequireIdRule } from "./rules/turbo-permanent-require-id.js"
 
 export const rules: RuleClass[] = [
@@ -215,5 +216,6 @@ export const rules: RuleClass[] = [
 
   SVGTagNameCapitalizationRule,
 
+  TurboPermanentNoMisleadingValueRule,
   TurboPermanentRequireIdRule,
 ]
diff --git a/javascript/packages/linter/src/rules/turbo-permanent-no-misleading-value.ts b/javascript/packages/linter/src/rules/turbo-permanent-no-misleading-value.ts
new file mode 100644
index 000000000..0d52d6a76
--- /dev/null
+++ b/javascript/packages/linter/src/rules/turbo-permanent-no-misleading-value.ts
@@ -0,0 +1,64 @@
+import { BaseRuleVisitor } from "./rule-utils.js"
+import { getAttribute, hasAttributeValue } from "@herb-tools/core"
+
+import { ParserRule, BaseAutofixContext, Mutable } from "../types.js"
+import type { UnboundLintOffense, LintOffense, LintContext, FullRuleConfig } from "../types.js"
+import type { HTMLAttributeNode, HTMLOpenTagNode, ParseResult } from "@herb-tools/core"
+
+interface TurboPermanentAutofixContext extends BaseAutofixContext {
+  node: Mutable<HTMLAttributeNode>
+}
+
+class TurboPermanentNoMisleadingValueVisitor extends BaseRuleVisitor<TurboPermanentAutofixContext> {
+  visitHTMLOpenTagNode(node: HTMLOpenTagNode): void {
+    this.checkTurboPermanentAttribute(node)
+    super.visitHTMLOpenTagNode(node)
+  }
+
+  private checkTurboPermanentAttribute(node: HTMLOpenTagNode): void {
+    const attribute = getAttribute(node, "data-turbo-permanent")
+
+    if (!attribute) return
+    if (!hasAttributeValue(attribute)) return
+
+    this.addOffense(
+      "Attribute `data-turbo-permanent` should not contain any value. Its presence alone enables the behavior, so values like `\"true\"` or `\"false\"` are misleading.",
+      attribute.value!.location,
+      {
+        node: attribute
+      }
+    )
+  }
+}
+
+export class TurboPermanentNoMisleadingValueRule extends ParserRule<TurboPermanentAutofixContext> {
+  static autocorrectable = true
+  static ruleName = "turbo-permanent-no-misleading-value"
+  static introducedIn = this.version("0.9.0")
+
+  get defaultConfig(): FullRuleConfig {
+    return {
+      enabled: true,
+      severity: "error"
+    }
+  }
+
+  check(result: ParseResult, context?: Partial<LintContext>): UnboundLintOffense<TurboPermanentAutofixContext>[] {
+    const visitor = new TurboPermanentNoMisleadingValueVisitor(this.ruleName, context)
+
+    visitor.visit(result.value)
+
+    return visitor.offenses
+  }
+
+  autofix(offense: LintOffense<TurboPermanentAutofixContext>, result: ParseResult, _context?: Partial<LintContext>): ParseResult | null {
+    if (!offense.autofixContext) return null
+
+    const { node } = offense.autofixContext
+
+    node.equals = null
+    node.value = null
+
+    return result
+  }
+}
diff --git a/javascript/packages/linter/test/__snapshots__/cli.test.ts.snap b/javascript/packages/linter/test/__snapshots__/cli.test.ts.snap
index 8888e0b32..c461d4e6f 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 | 16 not enabled"
+  Rules        84 enabled | 10 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 enabled | 16 not enabled"
 `;
 
 exports[`CLI Output Formatting > formats JSON output correctly for bad file 1`] = `
@@ -881,7 +881,7 @@ exports[`CLI Output Formatting > formats JSON output correctly for bad file 1`]
   "summary": {
     "filesChecked": 1,
     "filesWithOffenses": 1,
-    "ruleCount": 83,
+    "ruleCount": 84,
     "totalErrors": 2,
     "totalHints": 0,
     "totalIgnored": 0,
@@ -902,7 +902,7 @@ exports[`CLI Output Formatting > formats JSON output correctly for clean file 1`
   "summary": {
     "filesChecked": 1,
     "filesWithOffenses": 0,
-    "ruleCount": 83,
+    "ruleCount": 84,
     "totalErrors": 0,
     "totalHints": 0,
     "totalIgnored": 0,
@@ -975,7 +975,7 @@ exports[`CLI Output Formatting > formats JSON output correctly for file with err
   "summary": {
     "filesChecked": 1,
     "filesWithOffenses": 1,
-    "ruleCount": 83,
+    "ruleCount": 84,
     "totalErrors": 2,
     "totalHints": 0,
     "totalIgnored": 0,
@@ -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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 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 | 16 not enabled"
+  Rules        84 enabled | 16 not enabled"
 `;
diff --git a/javascript/packages/linter/test/autofix/turbo-permanent-no-misleading-value.autofix.test.ts b/javascript/packages/linter/test/autofix/turbo-permanent-no-misleading-value.autofix.test.ts
new file mode 100644
index 000000000..c100daa93
--- /dev/null
+++ b/javascript/packages/linter/test/autofix/turbo-permanent-no-misleading-value.autofix.test.ts
@@ -0,0 +1,65 @@
+import { describe, test, expect, beforeAll } from "vitest"
+import { Herb } from "@herb-tools/node-wasm"
+import { Linter } from "../../src/linter.js"
+import { TurboPermanentNoMisleadingValueRule } from "../../src/rules/turbo-permanent-no-misleading-value.js"
+
+describe("turbo-permanent-no-misleading-value autofix", () => {
+  beforeAll(async () => {
+    await Herb.load()
+  })
+
+  test("removes `\"true\"` value", () => {
+    const input = '<div id="cart" data-turbo-permanent="true">1 item</div>'
+    const expected = '<div id="cart" data-turbo-permanent>1 item</div>'
+
+    const linter = new Linter(Herb, [TurboPermanentNoMisleadingValueRule])
+    const result = linter.autofix(input)
+
+    expect(result.source).toBe(expected)
+    expect(result.fixed).toHaveLength(1)
+    expect(result.unfixed).toHaveLength(0)
+  })
+
+  test("removes `\"false\"` value", () => {
+    const input = '<div id="cart" data-turbo-permanent="false">1 item</div>'
+    const expected = '<div id="cart" data-turbo-permanent>1 item</div>'
+
+    const linter = new Linter(Herb, [TurboPermanentNoMisleadingValueRule])
+    const result = linter.autofix(input)
+
+    expect(result.source).toBe(expected)
+    expect(result.fixed).toHaveLength(1)
+  })
+
+  test("removes empty string value", () => {
+    const input = '<div id="cart" data-turbo-permanent="">1 item</div>'
+    const expected = '<div id="cart" data-turbo-permanent>1 item</div>'
+
+    const linter = new Linter(Herb, [TurboPermanentNoMisleadingValueRule])
+    const result = linter.autofix(input)
+
+    expect(result.source).toBe(expected)
+    expect(result.fixed).toHaveLength(1)
+  })
+
+  test("removes arbitrary value", () => {
+    const input = '<div id="cart" data-turbo-permanent="foo">1 item</div>'
+    const expected = '<div id="cart" data-turbo-permanent>1 item</div>'
+
+    const linter = new Linter(Herb, [TurboPermanentNoMisleadingValueRule])
+    const result = linter.autofix(input)
+
+    expect(result.source).toBe(expected)
+    expect(result.fixed).toHaveLength(1)
+  })
+
+  test("leaves valueless attribute untouched", () => {
+    const input = '<div id="cart" data-turbo-permanent>1 item</div>'
+
+    const linter = new Linter(Herb, [TurboPermanentNoMisleadingValueRule])
+    const result = linter.autofix(input)
+
+    expect(result.source).toBe(input)
+    expect(result.fixed).toHaveLength(0)
+  })
+})
diff --git a/javascript/packages/linter/test/rules/turbo-permanent-no-misleading-value.test.ts b/javascript/packages/linter/test/rules/turbo-permanent-no-misleading-value.test.ts
new file mode 100644
index 000000000..aaec2830e
--- /dev/null
+++ b/javascript/packages/linter/test/rules/turbo-permanent-no-misleading-value.test.ts
@@ -0,0 +1,37 @@
+import { describe, test } from "vitest"
+import { TurboPermanentNoMisleadingValueRule } from "../../src/rules/turbo-permanent-no-misleading-value.js"
+import { createLinterTest } from "../helpers/linter-test-helper.js"
+
+const { expectNoOffenses, expectError, assertOffenses } = createLinterTest(TurboPermanentNoMisleadingValueRule)
+
+const MESSAGE = "Attribute `data-turbo-permanent` should not contain any value. Its presence alone enables the behavior, so values like `\"true\"` or `\"false\"` are misleading."
+
+describe("turbo-permanent-no-misleading-value", () => {
+  test("passes when no explicit value is given", () => {
+    expectNoOffenses('<div id="cart-counter" data-turbo-permanent>1 item</div>')
+  })
+
+  test("passes when attribute is absent", () => {
+    expectNoOffenses('<div id="cart-counter">1 item</div>')
+  })
+
+  test("fails with value `true`", () => {
+    expectError(MESSAGE)
+    assertOffenses('<div id="cart-counter" data-turbo-permanent="true">1 item</div>')
+  })
+
+  test("fails with value `false`", () => {
+    expectError(MESSAGE)
+    assertOffenses('<div id="cart-counter" data-turbo-permanent="false">1 item</div>')
+  })
+
+  test("fails with arbitrary value", () => {
+    expectError(MESSAGE)
+    assertOffenses('<div id="cart-counter" data-turbo-permanent="foo">1 item</div>')
+  })
+
+  test("fails with empty string value", () => {
+    expectError(MESSAGE)
+    assertOffenses('<div id="cart-counter" data-turbo-permanent="">1 item</div>')
+  })
+})