fix: report AgentExecutionBlocked in non-interactive programmatic modes (#26262)

packages/core/src/output/json-formatter.test.ts

@@ -331,4 +331,19 @@ describe('JsonFormatter', () => {
     expect(parsed.error.message).toBe('Error\x07 with\x08 control\x0B chars');
     expect(() => JSON.parse(formatted)).not.toThrow();
   });
+
+  it('should format warnings as JSON', () => {
+    const formatter = new JsonFormatter();
+    const warnings = ['Warning 1', '\x1B[33mWarning 2 with ANSI\x1B[0m'];
+    const formatted = formatter.format(
+      undefined,
+      undefined,
+      undefined,
+      undefined,
+      warnings,
+    );
+    const parsed = JSON.parse(formatted);
+
+    expect(parsed.warnings).toEqual(['Warning 1', 'Warning 2 with ANSI']);
+  });
 });

packages/core/src/output/json-formatter.ts

@@ -15,6 +15,7 @@ export class JsonFormatter {
     response?: string,
     stats?: SessionMetrics,
     error?: JsonError,
+    warnings?: string[],
   ): string {
     const output: JsonOutput = {};
 
@@ -34,6 +35,10 @@ export class JsonFormatter {
       output.error = error;
     }
 
+    if (warnings && warnings.length > 0) {
+      output.warnings = warnings.map((w) => stripAnsi(w));
+    }
+
     return JSON.stringify(output, null, 2);
   }
 

packages/core/src/output/types.ts

@@ -23,6 +23,7 @@ export interface JsonOutput {
   response?: string;
   stats?: SessionMetrics;
   error?: JsonError;
+  warnings?: string[];
 }
 
 // Streaming JSON event types