Fix assistant file links with line suffixes

packages/app/src/utils/inline-path.test.ts

@@ -84,6 +84,19 @@ describe("parseAssistantFileLink", () => {
     });
   });
 
+  it("parses absolute POSIX hrefs with VS Code-style line suffixes inside the active workspace", () => {
+    expect(
+      parseAssistantFileLink("/Users/test/project/src/app.tsx:33", {
+        workspaceRoot: "/Users/test/project",
+      }),
+    ).toEqual({
+      raw: "/Users/test/project/src/app.tsx:33",
+      path: "/Users/test/project/src/app.tsx",
+      lineStart: 33,
+      lineEnd: undefined,
+    });
+  });
+
   it("parses absolute Windows hrefs inside the active workspace", () => {
     expect(
       parseAssistantFileLink("C:/repo/src/app.tsx#L12-L20", {
@@ -97,6 +110,19 @@ describe("parseAssistantFileLink", () => {
     });
   });
 
+  it("parses absolute Windows hrefs with VS Code-style line suffixes inside the active workspace", () => {
+    expect(
+      parseAssistantFileLink("C:/repo/src/app.tsx:12-20", {
+        workspaceRoot: "C:/repo",
+      }),
+    ).toEqual({
+      raw: "C:/repo/src/app.tsx:12-20",
+      path: "C:/repo/src/app.tsx",
+      lineStart: 12,
+      lineEnd: 20,
+    });
+  });
+
   it("allows file URLs even when they are outside the workspace root", () => {
     expect(
       parseAssistantFileLink("file:///tmp/outside.txt", {

packages/app/src/utils/inline-path.ts

@@ -166,6 +166,21 @@ export function parseAssistantFileLink(
     return null;
   }
 
+  const inlinePathTarget = parseInlinePathToken(trimmed);
+  if (inlinePathTarget) {
+    const normalizedPath = normalizePathToken(inlinePathTarget.path);
+    if (
+      normalizedPath &&
+      isAbsolutePath(normalizedPath) &&
+      isAllowedAbsolutePath(normalizedPath, options.workspaceRoot)
+    ) {
+      return {
+        ...inlinePathTarget,
+        path: normalizedPath,
+      };
+    }
+  }
+
   const windowsPathMatch = trimmed.match(/^([A-Za-z]:[\\/][^?#]*)(#[^?]+)?$/);
   if (windowsPathMatch) {
     const normalizedPath = normalizePathToken(windowsPathMatch[1] ?? "");