fix(agent): recover when action intent has no tool call

src/backends/native/agent.ts

@@ -259,6 +259,7 @@ export class NativeAgent {
     let sameToolStreak = 0;
     const maxSameToolStreak = 4; // nudge after 4 calls to the same tool
     let nudged = false;
+    let actionIntentNudged = false;
 
     for (let iteration = 0; iteration < this.maxIterations; iteration++) {
       try {
@@ -305,6 +306,16 @@ export class NativeAgent {
         const wantsToolUse = toolCalls.length > 0;
         if (!wantsToolUse) {
           const pseudoToolUse = this.extractPseudoToolUse(response.content);
+          if (this.shouldNudgeForMissingToolCall(response.content, pseudoToolUse) && !actionIntentNudged) {
+            actionIntentNudged = true;
+            const normalized = this.normalizeAssistantContent(response.content);
+            loopMessages.push({ role: 'assistant', content: normalized });
+            loopMessages.push({
+              role: 'user',
+              content: 'You said you would perform an action now, but no tool call was emitted. If a tool is needed, call it now. If blocked, explain the exact blocker.',
+            });
+            continue;
+          }
           const baseContent = pseudoToolUse
             ? this.buildPseudoToolUseWarning(response.content, pseudoToolUse)
             : this.normalizeAssistantContent(response.content);
@@ -472,6 +483,21 @@ export class NativeAgent {
     return warningMsg;
   }
 
+  private shouldNudgeForMissingToolCall(content: string, pseudoToolUse: PseudoToolUse | null): boolean {
+    if (!content || pseudoToolUse) {
+      return false;
+    }
+
+    const normalized = content.toLowerCase();
+    const intentRegex = /\b(i(?:'m| am)? going to|i(?:'ll| will)|let me|proceeding(?: now)?|i can(?: now)?)\b/;
+    if (!intentRegex.test(normalized)) {
+      return false;
+    }
+
+    const actionRegex = /\b(create|run|execute|call|use|check|fetch|search|read|write|send|retry|proceed|attempt|apply|delete|update|list)\b/;
+    return actionRegex.test(normalized);
+  }
+
   private async chatWithRouter(request: ChatRequest): Promise<ChatResponse> {
     const runSignal = this._runAbortController?.signal;
     const requestSignal = request.signal;