v0.7.9

- Optimized the display of Skills information
            - Added the replaceedit default editor
            - Optimized the loading display of sub-agents
            - Fixed the ambiguity bug of reranker model configuration between global and project
            - Fixed the issue where sub-agent Diffviewer did not display

Author: MayDay-wpf

.github/workflows/publish.yml

@@ -56,11 +56,11 @@ jobs:
 
             ### What's New
 
-            - Optimized the UI display effects of some components
-            - Added model list deduplication
-            - Added Markdown rendering to the Btw panel
-            - Codebase added Rerank selection
-            - Added retry mechanism for compression failure
+            - Optimized the display of Skills information
+            - Added the replaceedit default editor
+            - Optimized the loading display of sub-agents
+            - Fixed the ambiguity bug of reranker model configuration between global and project
+            - Fixed the issue where sub-agent Diffviewer did not display
 
             ### Installation
             ```bash

package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "snow-ai",
-	"version": "0.7.8",
+	"version": "0.7.9",
 	"description": "Agentic coding in your terminal",
 	"license": "MIT",
 	"bin": {

package.json

@@ -1478,15 +1478,9 @@ export class FilesystemMCPService {
 			const modifiedLines = [...beforeLines, ...replaceLines, ...afterLines];
 			const modifiedContent = modifiedLines.join('\n');
 
-			// Calculate replaced content for display (compress whitespace for readability)
-
+			// Calculate replaced content for display (raw text, no line-number prefix)
 			const replacedLines = lines.slice(startLine - 1, endLine);
-			const replacedContent = replacedLines
-				.map((line, idx) => {
-					const lineNum = startLine + idx;
-					return `${lineNum}→${normalizeForDisplay(line)}`;
-				})
-				.join('\n');
+			const replacedContent = replacedLines.join('\n');
 
 			// Calculate context boundaries
 			const lineDifference = replaceLines.length - (endLine - startLine + 1);
@@ -1500,14 +1494,9 @@ export class FilesystemMCPService {
 			const contextStart = smartBoundaries.start;
 			const contextEnd = smartBoundaries.end;
 
-			// Extract old content for context (compress whitespace for readability)
+			// Extract old content for context (raw text for reliable diff rendering)
 			const oldContextLines = lines.slice(contextStart - 1, contextEnd);
-			const oldContent = oldContextLines
-				.map((line, idx) => {
-					const lineNum = contextStart + idx;
-					return `${lineNum}→${normalizeForDisplay(line)}`;
-				})
-				.join('\n');
+			const oldContent = oldContextLines.join('\n');
 
 			// Write the modified content
 			if (isRemote) {
@@ -1558,16 +1547,30 @@ export class FilesystemMCPService {
 				}
 			}
 
-			// Extract new content for context (compress whitespace for readability)
+			// Extract new content for context (raw text for reliable diff rendering)
 			const newContextLines = finalLines.slice(
 				contextStart - 1,
 				finalContextEnd,
 			);
-			const newContextContent = newContextLines
-				.map((line, idx) => {
-					const lineNum = contextStart + idx;
-					return `${lineNum}→${normalizeForDisplay(line)}`;
-				})
+			const newContextContent = newContextLines.join('\n');
+
+			// Provide a larger overflow window so UI can render a broader diff hunk
+			// and help models verify bracket/block closure with surrounding context.
+			const overflowPadding = Math.max(3, contextLines);
+			const completeOldStart = Math.max(1, contextStart - overflowPadding);
+			const completeOldEnd = Math.min(lines.length, contextEnd + overflowPadding);
+			const completeOldContent = lines
+				.slice(completeOldStart - 1, completeOldEnd)
+				.join('\n');
+
+			const finalLineDifference = finalLines.length - lines.length;
+			const completeNewStart = Math.max(1, completeOldStart);
+			const completeNewEnd = Math.min(
+				finalLines.length,
+				completeOldEnd + finalLineDifference,
+			);
+			const completeNewContent = finalLines
+				.slice(completeNewStart - 1, completeNewEnd)
 				.join('\n');
 
 			// Analyze code structure
@@ -1605,6 +1608,8 @@ export class FilesystemMCPService {
 				filePath, // Include file path for DiffViewer display on Resume/re-render
 				oldContent,
 				newContent: newContextContent,
+				completeOldContent,
+				completeNewContent,
 				replacedContent,
 				matchLocation: {startLine, endLine},
 				contextStartLine: contextStart,
@@ -2418,8 +2423,8 @@ export const mcpTools = [
 	{
 		name: 'filesystem-replaceedit',
 		description:
-			'OPTIONAL (off by default — enable in MCP panel): Fuzzy search-and-replace editing. ' +
-			'**WHEN**: Prefer `filesystem-edit` (hashline anchors) for normal workflow; use this only when you need to match raw text. ' +
+			'DEFAULT edit tool: Fuzzy search-and-replace editing. ' +
+			'**WHEN**: Prefer this for normal workflow and diff-friendly context display. Use `filesystem-edit` when you need strict hash-anchored safety checks. ' +
 			'**REMOTE SSH**: Supports ssh:// paths like other filesystem tools. ' +
 			'**INPUT**: `searchContent` must be raw source text — strip `lineNum:hash→` prefixes if you pasted from `filesystem-read`. ' +
 			'**BATCH**: `filePath` may be a string, string[] with top-level search/replace, or {path, searchContent, replaceContent, occurrence?}[]. ' +
@@ -2500,7 +2505,7 @@ export const mcpTools = [
 	{
 		name: 'filesystem-edit',
 		description:
-			'PREFERRED edit tool: Hash-anchored editing using content hashes from filesystem-read. ' +
+			'OPTIONAL strict edit tool: Hash-anchored editing using content hashes from filesystem-read. ' +
 			'Line format: "lineNum:hash→content" (e.g. "42:a3→code"). Use anchors "lineNum:hash" to reference lines — no text reproduction needed. ' +
 			'**OPERATIONS**: (1) replace — replaces startAnchor..endAnchor with content; ' +
 			'(2) insert_after — inserts content after startAnchor; ' +

source/mcp/filesystem.ts

@@ -114,8 +114,9 @@ export default function SubAgentConfigScreen({
 			tools: [
 				'filesystem-read',
 				'filesystem-create',
+				'filesystem-replaceedit',
 				'filesystem-edit',
-							],
+			],
 		},
 		{
 			name: t.subAgentConfig.aceTools,

source/ui/pages/SubAgentConfigScreen.tsx

@@ -21,7 +21,7 @@ interface OptInMCPConfig {
 }
 
 /** Tools that are off until explicitly enabled (Tab in MCP tools list writes opt-in file). */
-const DEFAULT_OPT_IN_DISABLED_KEYS = new Set<string>(['filesystem:replaceedit']);
+const DEFAULT_OPT_IN_DISABLED_KEYS = new Set<string>(['filesystem:edit']);
 
 function getProjectConfigPath(): string {
 	return path.join(process.cwd(), '.snow', CONFIG_FILE);

source/utils/config/disabledMCPTools.ts

@@ -27,13 +27,16 @@ const SUB_AGENTS_CONFIG_FILE = join(CONFIG_DIR, 'sub-agents.json');
 
 /**
  * Built-in sub-agents (hardcoded, always available)
+ * Build dynamically so tool enable/disable changes are reflected immediately.
  */
-const BUILTIN_AGENTS: SubAgent[] = getAllBuiltinAgentDefinitions().map(def => ({
-	...def,
-	createdAt: '2024-01-01T00:00:00.000Z',
-	updatedAt: '2024-01-01T00:00:00.000Z',
-	builtin: true,
-}));
+function getBuiltinAgents(): SubAgent[] {
+	return getAllBuiltinAgentDefinitions().map(def => ({
+		...def,
+		createdAt: '2024-01-01T00:00:00.000Z',
+		updatedAt: '2024-01-01T00:00:00.000Z',
+		builtin: true,
+	}));
+}
 
 function ensureConfigDirectory(): void {
 	if (!existsSync(CONFIG_DIR)) {
@@ -72,9 +75,10 @@ export function getUserSubAgents(): SubAgent[] {
 export function getSubAgents(): SubAgent[] {
 	const userAgents = getUserSubAgents();
 	const userAgentIds = new Set(userAgents.map(a => a.id));
+	const builtinAgents = getBuiltinAgents();
 
 	// 过滤掉已被用户覆盖的内置代理
-	const effectiveBuiltinAgents = BUILTIN_AGENTS.filter(
+	const effectiveBuiltinAgents = builtinAgents.filter(
 		agent => !userAgentIds.has(agent.id),
 	);
 

source/utils/config/subAgentConfig.ts

@@ -275,7 +275,7 @@ async function refreshToolsCache(): Promise<void> {
 		}
 	};
 
-	// Built-in filesystem (includes filesystem-replaceedit — off by default; enable in MCP panel: V on filesystem, Tab on replaceedit)
+	// Built-in filesystem (filesystem-edit is opt-in; filesystem-replaceedit is enabled by default)
 	addBuiltInService('filesystem', filesystemTools, 'filesystem');
 
 	// Add built-in terminal tools
@@ -1347,7 +1347,7 @@ export async function executeMCPTool(
 					);
 					break;
 				case 'replaceedit':
-					// Opt-in tool (default off): enable under MCP panel → filesystem → V → Tab on replaceedit
+					// Default-on tool (can be disabled in MCP panel)
 					if (!args.filePath) {
 						throw new Error(
 							`Missing required parameter 'filePath' for filesystem-replaceedit tool.\n` +

source/utils/execution/mcpToolsManager.ts

@@ -196,7 +196,8 @@ Inserted log points:
 ### Filesystem Tools (core work)
 - filesystem-read: Read file contents
 - filesystem-create: Create new files (write the logger helper function file in Phase 2)
-- filesystem-edit: Hash-anchored file editing (insert/replace/delete via anchors)
+- filesystem-replaceedit: Default edit tool for readable diff validation and closure checks
+- filesystem-edit: Optional strict hash-anchored editing (insert/replace/delete via anchors)
 
 ### Terminal Tools (auxiliary)
 - terminal-execute: Execute commands (check directory structure, etc.)
@@ -218,6 +219,7 @@ Inserted log points:
 	tools: [
 		'filesystem-read',
 		'filesystem-create',
+		'filesystem-replaceedit',
 		'filesystem-edit',
 		'terminal-execute',
 		'ace-find_definition',

source/utils/execution/subagents/debugAgent.ts

@@ -83,7 +83,8 @@ You are a versatile task execution agent with full tool access, capable of handl
 5. Never guess line numbers or code structure
 
 ### File Modification Strategy
-- USE filesystem-edit: Hash-anchored editing, no text reproduction needed, stale-read safe
+- USE filesystem-replaceedit by default: Better diff readability with overflow context for closure checks
+- USE filesystem-edit when you need strict hash-anchored stale-read safety
 - ALWAYS verify boundaries: Functions need full body, markup needs complete tags
 - BATCH operations: Modify 2+ files? Use batch mode in single call
 
@@ -105,7 +106,8 @@ You are a versatile task execution agent with full tool access, capable of handl
 
 ### Filesystem Tools (Primary Work)
 - filesystem-read: Read files, use batch for multiple files
-- filesystem-edit: Hash-anchored editing (reference "lineNum:hash" anchors from read output)
+- filesystem-replaceedit: Default edit tool for search-replace workflow and readable diffs
+- filesystem-edit: Optional strict hash-anchored editing (reference "lineNum:hash" anchors from read output)
 - filesystem-create: Create new files with content
 
 ### Terminal Tools (Build and Test)
@@ -187,6 +189,7 @@ You are a versatile task execution agent with full tool access, capable of handl
 	tools: [
 		'filesystem-read',
 		'filesystem-create',
+		'filesystem-replaceedit',
 		'filesystem-edit',
 		'terminal-execute',
 		'ace-find_definition',