fix(ext): !stop CancelCascadeInvocation RPC — AG 빨간■ 동일 메커니즘 적용 #task-411

extension/out/extension.js

@@ -435,7 +435,7 @@ async function activate(context) {
             onCommand: (data) => {
                 logToFile(`[WS-CMD] ${data.text?.substring(0, 50)}`);
                 (0, command_handler_1.handleWSCommand)({
-                    bridgePath, projectName, sdk, autoApproveEnabled, logToFile,
+                    bridgePath, projectName, sdk, ls: sdk?.ls, autoApproveEnabled, logToFile,
                     onAutoApproveChanged: (enabled) => { autoApproveEnabled = enabled; },
                     recentDiscordSentTexts,
                 }, data);
@@ -558,7 +558,7 @@ async function activate(context) {
     }
     // Watch commands directory
     (0, command_handler_1.watchCommandsDir)({
-        bridgePath, projectName, sdk, autoApproveEnabled, logToFile,
+        bridgePath, projectName, sdk, ls: sdk?.ls, autoApproveEnabled, logToFile,
         onAutoApproveChanged: (enabled) => { autoApproveEnabled = enabled; },
         recentDiscordSentTexts,
     });

extension/src/command-handler.ts

@@ -17,6 +17,8 @@ export interface CommandHandlerContext {
     bridgePath: string;
     projectName: string;
     sdk: any;
+    /** LSBridge instance for direct LS RPC calls (cancelCascade, etc.) */
+    ls: any;
     autoApproveEnabled: boolean;
     logToFile: (msg: string) => void;
     /** Called when auto-approve is toggled; extension.ts updates its own state */
@@ -93,9 +95,7 @@ export function handleWSCommand(ctx: CommandHandlerContext, data: { text?: strin
 
     if (text === '!stop') {
         ctx.logToFile('[WS-CMD] !stop — cancelling AG task');
-        if (ctx.sdk) {
-            try { ctx.sdk.cascade.cancelCurrentTask(); } catch { }
-        }
+        _cancelCurrentCascade(ctx);
         return;
     }
 
@@ -122,6 +122,42 @@ export function handleWSCommand(ctx: CommandHandlerContext, data: { text?: strin
 
 // ─── Private ───
 
+/**
+ * Cancel the currently active cascade via CancelCascadeInvocation RPC.
+ * This is the same mechanism AG's native red ■ stop button uses.
+ */
+async function _cancelCurrentCascade(ctx: CommandHandlerContext) {
+    // 1. Get the active cascade ID from SDK titles manager
+    const cascadeId = ctx.sdk?.titles?.getActiveCascadeId?.();
+    if (!cascadeId) {
+        ctx.logToFile('[STOP] No active cascade to cancel (getActiveCascadeId returned null)');
+        return;
+    }
+
+    ctx.logToFile(`[STOP] Cancelling cascade: ${cascadeId.substring(0, 12)}...`);
+
+    // 2. Use LSBridge.cancelCascade() → CancelCascadeInvocation RPC
+    if (ctx.ls) {
+        try {
+            await ctx.ls.cancelCascade(cascadeId);
+            ctx.logToFile(`[STOP] ✅ CancelCascadeInvocation sent for ${cascadeId.substring(0, 12)}`);
+            return;
+        } catch (e: any) {
+            ctx.logToFile(`[STOP] LSBridge cancelCascade failed: ${e.message}`);
+        }
+    }
+
+    // 3. Fallback: try rawRPC directly via sdk.ls
+    if (ctx.sdk?.ls?.rawRPC) {
+        try {
+            await ctx.sdk.ls.rawRPC('CancelCascadeInvocation', { cascadeId });
+            ctx.logToFile(`[STOP] ✅ rawRPC CancelCascadeInvocation sent for ${cascadeId.substring(0, 12)}`);
+        } catch (e: any) {
+            ctx.logToFile(`[STOP] rawRPC fallback also failed: ${e.message}`);
+        }
+    }
+}
+
 function _processCommandFile(filePath: string, ctx: CommandHandlerContext) {
     try {
         const content = fs.readFileSync(filePath, 'utf-8');
@@ -158,15 +194,8 @@ function _processCommandFile(filePath: string, ctx: CommandHandlerContext) {
                 console.log(`Gravity Bridge: approve_terminal error: ${e.message}`)
             );
         } else if (text === '!stop') {
-            // Cancel current operation — use SDK (rejectAgentStep is NOT a registered VS Code command)
-            if (ctx.sdk) {
-                try {
-                    ctx.sdk.cascade.cancelCurrentTask();
-                    console.log('Gravity Bridge: ✅ stop sent via SDK');
-                } catch (e: any) {
-                    console.log(`Gravity Bridge: stop error: ${e.message}`);
-                }
-            }
+            // Cancel current operation — use CancelCascadeInvocation RPC (same as AG's red ■ button)
+            _cancelCurrentCascade(ctx);
         } else if (text.startsWith('!auto')) {
             // Auto-approve mode toggle
             let enabled: boolean;