diff --git a/src/shared/native-chat/input/native-chat-paste-bytes.test.ts b/src/shared/native-chat/input/native-chat-paste-bytes.test.ts
index bb7c5cad670..37545d986dc 100644
--- a/src/shared/native-chat/input/native-chat-paste-bytes.test.ts
+++ b/src/shared/native-chat/input/native-chat-paste-bytes.test.ts
@@ -31,13 +31,13 @@ describe('buildNativeChatPasteBytes', () => {
     expect(buildNativeChatPasteBytes('hi\x1b there')).toBe('hi␛ there')
   })
 
-  it('frames single-line text over 1 KiB of UTF-8 so agents keep every read (#13332)', () => {
-    const atBoundary = 'é'.repeat(512)
+  it('frames single-line text over 512 UTF-8 bytes so agents keep every read (#13332, #32071)', () => {
+    const atBoundary = 'é'.repeat(256)
     const overBoundary = `${atBoundary}x`
     expect(buildNativeChatPasteBytes(atBoundary)).toBe(atBoundary)
     expect(buildNativeChatPasteBytes(overBoundary)).toBe(`${BEGIN}${overBoundary}${END}`)
     // Each ESC becomes a 3-byte ␛, so the sent length, not the typed one, decides.
-    expect(buildNativeChatPasteBytes('\x1b'.repeat(400))).toBe(`${BEGIN}${'␛'.repeat(400)}${END}`)
+    expect(buildNativeChatPasteBytes('\x1b'.repeat(200))).toBe(`${BEGIN}${'␛'.repeat(200)}${END}`)
   })
 })
 
diff --git a/src/shared/terminal/input/terminal-bracketed-paste-text.ts b/src/shared/terminal/input/terminal-bracketed-paste-text.ts
index 425dcbd8d58..6e75398377e 100644
--- a/src/shared/terminal/input/terminal-bracketed-paste-text.ts
+++ b/src/shared/terminal/input/terminal-bracketed-paste-text.ts
@@ -3,8 +3,8 @@
 const ESCAPE = '\u001b'
 export const BRACKETED_PASTE_START = `${ESCAPE}[200~`
 export const BRACKETED_PASTE_END = `${ESCAPE}[201~`
-// Agents can keep only the last read of unframed input longer than this (#13332).
-export const UNFRAMED_AGENT_INPUT_MAX_BYTES = 1024
+// Agents can split or keep only the last read of unframed input longer than a PTY read (#13332, #32071).
+export const UNFRAMED_AGENT_INPUT_MAX_BYTES = 512
 
 // Replace embedded ESC with printable ␛ (U+241B) so pasted framing bytes cannot close the frame and execute its tail.
 export function sanitizeBracketedPasteText(text: string): string {