From d2fb201fc59cd8b249d862fd4a202ee29cd51918 Mon Sep 17 00:00:00 2001
From: merlinmiao <820962493@qq.com>
Date: Sun, 5 Apr 2026 10:25:16 +0800
Subject: [PATCH] fix(tool): make escape semantics descriptions
 provider-agnostic

Replace CLI-specific "In function.arguments" phrasing with
provider-neutral language about JSON escaping, since:
- CLI providers: function.arguments is JSON-encoded string (double decode)
- API providers (Anthropic, OpenAI, Bedrock): function.arguments is
  a JSON object directly (single decode)

This affects write_file, edit_file, and append_file tool descriptions.

Fixes #2337
---
 pkg/tools/edit.go       | 10 +++++-----
 pkg/tools/filesystem.go |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/pkg/tools/edit.go b/pkg/tools/edit.go
index 09d1f545b..ed037f3af 100644
--- a/pkg/tools/edit.go
+++ b/pkg/tools/edit.go
@@ -29,7 +29,7 @@ func (t *EditFileTool) Name() string {
 }
 
 func (t *EditFileTool) Description() string {
-	return "Edit a file by replacing old_text with new_text. The old_text must exist exactly in the file. In `function.arguments`, use \\n for newline and \\\\n for literal backslash-n."
+	return "Edit a file by replacing old_text with new_text. The old_text must exist exactly in the file. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n."
 }
 
 func (t *EditFileTool) Parameters() map[string]any {
@@ -42,11 +42,11 @@ func (t *EditFileTool) Parameters() map[string]any {
 			},
 			"old_text": map[string]any{
 				"type":        "string",
-				"description": "The exact text to find and replace. In `function.arguments`, use \\n for newline and \\\\n for literal backslash-n.",
+				"description": "The exact text to find and replace. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n.",
 			},
 			"new_text": map[string]any{
 				"type":        "string",
-				"description": "The text to replace with. In `function.arguments`, use \\n for newline and \\\\n for literal backslash-n.",
+				"description": "The text to replace with. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n.",
 			},
 		},
 		"required": []string{"path", "old_text", "new_text"},
@@ -92,7 +92,7 @@ func (t *AppendFileTool) Name() string {
 }
 
 func (t *AppendFileTool) Description() string {
-	return "Append content to the end of a file. In `function.arguments`, use \\n for newline and \\\\n for literal backslash-n."
+	return "Append content to the end of a file. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n."
 }
 
 func (t *AppendFileTool) Parameters() map[string]any {
@@ -105,7 +105,7 @@ func (t *AppendFileTool) Parameters() map[string]any {
 			},
 			"content": map[string]any{
 				"type":        "string",
-				"description": "The content to append. In `function.arguments`, use \\n for newline and \\\\n for literal backslash-n.",
+				"description": "The content to append. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n.",
 			},
 		},
 		"required": []string{"path", "content"},
diff --git a/pkg/tools/filesystem.go b/pkg/tools/filesystem.go
index 52d77f665..71eee371f 100644
--- a/pkg/tools/filesystem.go
+++ b/pkg/tools/filesystem.go
@@ -870,7 +870,7 @@ func (t *WriteFileTool) Name() string {
 }
 
 func (t *WriteFileTool) Description() string {
-	return "Write content to a file. In `function.arguments`, use \\n for a newline and \\\\n for a literal backslash-n sequence. Content is written byte-for-byte after argument decoding. If the file already exists, you must set overwrite=true to replace it."
+	return "Write content to a file. Content is written byte-for-byte after argument decoding. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n. If the file already exists, you must set overwrite=true to replace it."
 }
 
 func (t *WriteFileTool) Parameters() map[string]any {
@@ -883,7 +883,7 @@ func (t *WriteFileTool) Parameters() map[string]any {
 			},
 			"content": map[string]any{
 				"type":        "string",
-				"description": "Content to write to the file. In `function.arguments`, use \\n for newline and \\\\n for literal backslash-n.",
+				"description": "Content to write to the file. Standard JSON escaping applies: use `\n` for newline, `\\n` for literal backslash-n.",
 			},
 			"overwrite": map[string]any{
 				"type":        "boolean",