From 47591a34105a21bcd6b95ee7971ccb31ef2ae701 Mon Sep 17 00:00:00 2001
From: marshall <leia@hellomarshall.com>
Date: Fri, 6 Nov 2026 23:34:42 -0800
Subject: [PATCH] fix(shared): keep block markers after a task checkbox as
 visible text

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 packages/shared/src/document-anchors.test.ts | 2 ++
 packages/shared/src/document-anchors.ts      | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/shared/src/document-anchors.test.ts b/packages/shared/src/document-anchors.test.ts
index 3b7f5cb246..1c43a24295 100644
--- a/packages/shared/src/document-anchors.test.ts
+++ b/packages/shared/src/document-anchors.test.ts
@@ -99,6 +99,8 @@ describe("document text projection", () => {
   it("keeps text the renderer shows literally", () => {
     expect(projectMarkdownToText("# - Roadmap").text).toBe("- Roadmap");
     expect(projectMarkdownToText("> # - Quoted heading").text).toBe("- Quoted heading");
+    expect(projectMarkdownToText("- [ ] # Release").text).toBe("# Release");
+    expect(projectMarkdownToText("- [x] - Shipped").text).toBe("- Shipped");
     expect(projectMarkdownToText("Intro\n\n| --- |").text).toBe("Intro ---");
     expect(projectMarkdownToText("| A | B |\n| --- | --- |\n| 1 | 2 |").text).not.toContain("---");
     expect(projectMarkdownToText("Show \\&amp; and &Amp; and &constructor;").text)
diff --git a/packages/shared/src/document-anchors.ts b/packages/shared/src/document-anchors.ts
index a7336b2757..e0072cddec 100644
--- a/packages/shared/src/document-anchors.ts
+++ b/packages/shared/src/document-anchors.ts
@@ -275,9 +275,11 @@ function stripBlockSyntax(line: string, absoluteOffset: number): { text: string;
       consumed += quote[0].length;
       continue;
     }
-    const listItem = rest.match(/^\s*(?:[-+*]|\d+[.)])\s+(?:\[[ xX]\]\s+)?/);
+    const listItem = rest.match(/^\s*(?:[-+*]|\d+[.)])\s+(\[[ xX]\]\s+)?/);
     if (listItem) {
       consumed += listItem[0].length;
+      // A task checkbox starts the item's paragraph, so markers after it stay visible.
+      if (listItem[1]) break;
       continue;
     }
     // Heading text is inline content, so markers after `#` stay visible.