diff --git a/src/runners/claude.ts b/src/runners/claude.ts
index 36b5689..5c5d6b3 100644
--- a/src/runners/claude.ts
+++ b/src/runners/claude.ts
@@ -96,10 +96,11 @@ export function runWithClaude(agentDir: string, manifest: AgentManifest, options
     if (result.error) {
       error(`Failed to launch Claude Code: ${result.error.message}`);
       info('Make sure Claude Code CLI is installed: npm install -g @anthropic-ai/claude-code');
-      process.exit(1);
+      process.exitCode = 1;
+      return;
     }
 
-    process.exit(result.status ?? 0);
+    process.exitCode = result.status ?? 0;
   } finally {
     for (const f of tmpFiles) {
       try { unlinkSync(f); } catch { /* ignore */ }
diff --git a/src/runners/crewai.ts b/src/runners/crewai.ts
index 3f8e95a..8947331 100644
--- a/src/runners/crewai.ts
+++ b/src/runners/crewai.ts
@@ -25,10 +25,11 @@ export function runWithCrewAI(agentDir: string, _manifest: AgentManifest): void
     if (result.error) {
       error(`Failed to run CrewAI: ${result.error.message}`);
       info('Make sure the crewai CLI is installed: pip install crewai');
-      process.exit(1);
+      process.exitCode = 1;
+      return;
     }
 
-    process.exit(result.status ?? 0);
+    process.exitCode = result.status ?? 0;
   } finally {
     try { unlinkSync(tmpFile); } catch { /* ignore */ }
   }
diff --git a/src/runners/nanobot.ts b/src/runners/nanobot.ts
index 92f1841..713737f 100644
--- a/src/runners/nanobot.ts
+++ b/src/runners/nanobot.ts
@@ -58,10 +58,11 @@ export function runWithNanobot(agentDir: string, manifest: AgentManifest, option
       error(`Failed to launch Nanobot: ${result.error.message}`);
       info('Install Nanobot with: pip install nanobot-ai');
       info('Or: uv tool install nanobot-ai');
-      process.exit(1);
+      process.exitCode = 1;
+      return;
     }
 
-    process.exit(result.status ?? 0);
+    process.exitCode = result.status ?? 0;
   } finally {
     try { rmSync(tmpConfigDir, { recursive: true, force: true }); } catch { /* ignore */ }
   }
diff --git a/src/runners/openai.ts b/src/runners/openai.ts
index 722e235..7f289e7 100644
--- a/src/runners/openai.ts
+++ b/src/runners/openai.ts
@@ -32,10 +32,11 @@ export function runWithOpenAI(agentDir: string, _manifest: AgentManifest): void
     if (result.error) {
       error(`Failed to run Python: ${result.error.message}`);
       info('Make sure python3 is installed and the openai-agents package is available');
-      process.exit(1);
+      process.exitCode = 1;
+      return;
     }
 
-    process.exit(result.status ?? 0);
+    process.exitCode = result.status ?? 0;
   } finally {
     try { unlinkSync(tmpFile); } catch { /* ignore */ }
   }
diff --git a/src/runners/openclaw.ts b/src/runners/openclaw.ts
index a162b96..b38e180 100644
--- a/src/runners/openclaw.ts
+++ b/src/runners/openclaw.ts
@@ -118,10 +118,11 @@ export function runWithOpenClaw(agentDir: string, manifest: AgentManifest, optio
     if (result.error) {
       error(`Failed to launch OpenClaw: ${result.error.message}`);
       info('Make sure OpenClaw is installed: npm install -g openclaw@latest');
-      process.exit(1);
+      process.exitCode = 1;
+      return;
     }
 
-    process.exit(result.status ?? 0);
+    process.exitCode = result.status ?? 0;
   } finally {
     // Cleanup temp workspace
     try { rmSync(workspaceDir, { recursive: true, force: true }); } catch { /* ignore */ }