From e6303589edc81377030f1d72568ab04557ae9bae Mon Sep 17 00:00:00 2001
From: Fsocietyhhh <1211904451@qq.com>
Date: Mon, 18 May 2026 22:22:03 -0700
Subject: [PATCH] feat(ui): only collapse pasted text into [Pasted ~N lines]
 block when >= 5 lines
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Previously every bracketed-paste, no matter how short, was replaced with a
[Pasted ~1 line] placeholder — including single-line prompts of a couple
hundred characters. This hid the actual content from both the user and
the model.

Mirror Hermes's behavior: inline short pastes (<5 lines) as plain text;
only collapse longer multi-line pastes (logs, files, stack traces).

Threshold lives in a single constant near the other paste markers so
it can later be promoted to a config field if needed.

Comparison with other agents:
  Claude Code: >= 4 lines
  opencode:    >= 3 lines OR > 150 chars (community complaints too aggressive)
  Hermes:      >= 5 lines  (this PR)
  Cursor:      ~10 lines / ~1 KB
  Aider:       never collapses
---
 src/ui/app.tsx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/ui/app.tsx b/src/ui/app.tsx
index e3fccf9..60aa98b 100644
--- a/src/ui/app.tsx
+++ b/src/ui/app.tsx
@@ -30,6 +30,9 @@ const DISABLE_BRACKETED_PASTE = '\x1b[?2004l';
 const USER_PROMPT_COLOR = '#FFD700';
 const PASTE_BLOCK_START = '\uE000PASTE:';
 const PASTE_BLOCK_END = ':PASTE\uE001';
+// Mirror Hermes: only collapse pastes of >= this many lines into a [Pasted ~N lines] block.
+// Short pastes (one-liners, 2-4 line snippets) inline as plain text so the model sees them verbatim.
+const PASTE_COLLAPSE_LINE_THRESHOLD = 5;
 
 const DISABLE_AUTO_WRAP = '\x1b[?7l';
 const ENABLE_AUTO_WRAP = '\x1b[?7h';
@@ -242,7 +245,11 @@ function PromptTextInput({ value, onChange, onSubmit, placeholder = '', focus =
 
       if (!hasPasteEnd) return;
 
-      text = encodePasteBlock(pasteBufferRef.current);
+      const buffered = pasteBufferRef.current;
+      const lineCount = buffered.length === 0 ? 0 : buffered.split('\n').length;
+      text = lineCount >= PASTE_COLLAPSE_LINE_THRESHOLD
+        ? encodePasteBlock(buffered)
+        : buffered;
       pasteBufferRef.current = '';
       pasteActiveRef.current = false;
     }