fix: re-raise SIGINT/SIGTERM after plugin cleanup

src/index.ts

@@ -591,13 +591,19 @@ export const OpenCodeMemPlugin: Plugin = async (ctx: PluginInput) => {
     if (memoryClient) await memoryClient.close();
   };
 
-  const shutdownHandler = async () => {
+  const shutdownHandler = async (signal: NodeJS.Signals) => {
     try {
       await cleanupPlugin();
     } catch (error) {
       log("Shutdown error", { error: String(error) });
       process.exitCode = 1;
     }
+    // Registering listeners disables the runtime's default termination.
+    // After cleanup, remove ours and re-raise so the host can exit (#408).
+    // Avoid forced process exit here — that crashes onnxruntime-node finalizers (#114).
+    process.off("SIGINT", shutdownHandler);
+    process.off("SIGTERM", shutdownHandler);
+    process.kill(process.pid, signal);
   };
 
   const beforeExitHandler = () => {

tests/plugin-shutdown.test.ts

@@ -8,6 +8,16 @@ describe("plugin shutdown", () => {
     expect(source).not.toContain("process.exit(");
   });
 
+  it("re-raises SIGINT/SIGTERM after cleanup so the host can exit", () => {
+    const source = readFileSync(new URL("../src/index.ts", import.meta.url), "utf-8");
+
+    // Listeners suppress default termination; after cleanup we must drop them
+    // and re-deliver the signal (#408) without process.exit (#114).
+    expect(source).toContain('process.off("SIGINT", shutdownHandler)');
+    expect(source).toContain('process.off("SIGTERM", shutdownHandler)');
+    expect(source).toContain("process.kill(process.pid, signal)");
+  });
+
   it("clears pending idle auto-capture work during cleanup", () => {
     const source = readFileSync(new URL("../src/index.ts", import.meta.url), "utf-8");