From fe871aad77ea9d56935ae197276ca8b3f97411ef Mon Sep 17 00:00:00 2001 From: zhayujie Date: Wed, 13 May 2026 16:15:06 +0800 Subject: [PATCH] fix(tools): unify text file truncation thresholds in read tool --- agent/tools/read/read.py | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/agent/tools/read/read.py b/agent/tools/read/read.py index 72876c9e..09cd1f9c 100644 --- a/agent/tools/read/read.py +++ b/agent/tools/read/read.py @@ -245,16 +245,11 @@ class Read(BaseTool): }) # Read file (utf-8-sig strips BOM automatically on Windows) + # Note: Truncation is unified via truncate_head (DEFAULT_MAX_LINES / DEFAULT_MAX_BYTES) + # so that offset/limit can paginate the entire file correctly. with open(absolute_path, 'r', encoding='utf-8-sig') as f: content = f.read() - - # Truncate content if too long (20K characters max for model context) - MAX_CONTENT_CHARS = 20 * 1024 # 20K characters - content_truncated = False - if len(content) > MAX_CONTENT_CHARS: - content = content[:MAX_CONTENT_CHARS] - content_truncated = True - + all_lines = content.split('\n') total_file_lines = len(all_lines) @@ -290,11 +285,7 @@ class Read(BaseTool): output_text = "" details = {} - - # Add truncation warning if content was truncated - if content_truncated: - output_text = f"[文件内容已截断到前 {format_size(MAX_CONTENT_CHARS)}，完整文件大小: {format_size(file_size)}]\n\n" - + if truncation.first_line_exceeds_limit: # First line exceeds 30KB limit first_line_size = format_size(len(all_lines[start_line].encode('utf-8')))