diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index d25df16d1d..6521ecb064 100755
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -59,6 +59,21 @@ const Handlers = Runtime.handlers(Commands, {
 
 Effect.gen(function* () {
   yield* Heap.listen
+  const runFork = Effect.runForkWith(yield* Effect.context<never>())
+  const uncaughtException = (cause: Error, origin: "uncaughtException" | "unhandledRejection") => {
+    runFork(Effect.logError("uncaught exception", { cause, origin }))
+  }
+  const unhandledRejection = (cause: unknown) => {
+    runFork(Effect.logError("unhandled rejection", { cause }))
+  }
+  process.on("uncaughtException", uncaughtException)
+  process.on("unhandledRejection", unhandledRejection)
+  yield* Effect.addFinalizer(() =>
+    Effect.sync(() => {
+      process.off("uncaughtException", uncaughtException)
+      process.off("unhandledRejection", unhandledRejection)
+    }),
+  )
   yield* Effect.logInfo("cli starting", {
     version: OPENCODE_VERSION,
     channel: OPENCODE_CHANNEL,
@@ -67,6 +82,12 @@ Effect.gen(function* () {
   })
   return yield* Runtime.run(Commands, Handlers, { version: OPENCODE_VERSION })
 }).pipe(
+  Effect.catchCause((cause) =>
+    Effect.logError("cli process failed", {
+      cause,
+      args: process.argv.slice(2),
+    }).pipe(Effect.andThen(Effect.failCause(cause))),
+  ),
   Effect.annotateLogs({ role: "cli" }),
   Effect.provide(Config.layer),
   Effect.provide(Updater.layer),
diff --git a/packages/cli/src/server-process.ts b/packages/cli/src/server-process.ts
index ba3a38d5ad..aeedf4a3bf 100644
--- a/packages/cli/src/server-process.ts
+++ b/packages/cli/src/server-process.ts
@@ -180,27 +180,38 @@ const register = Effect.fnUntraced(function* (
     password,
   }
   const encoded = yield* encodeInfo(info)
-  const current = fs.readFileString(file).pipe(
-    Effect.flatMap(decodeInfo),
-    Effect.orElseSucceed(() => undefined),
-  )
-  const owns = (found: Info | undefined) =>
-    found?.id === info.id &&
+  const current = fs.readFileString(file).pipe(Effect.flatMap(decodeInfo))
+  const owns = (found: Info) =>
+    found.id === info.id &&
     found.version === info.version &&
     found.url === info.url &&
     found.pid === info.pid &&
     found.password === info.password
   yield* fs.writeFileString(temp, encoded, { mode: 0o600 }).pipe(Effect.andThen(fs.rename(temp, file)))
   yield* current.pipe(
-    Effect.filterOrFail(owns),
-    Effect.repeat(Schedule.spaced("5 seconds")),
-    Effect.tapError(() =>
-      Effect.logWarning("managed service registration lost; shutting down", {
+    Effect.catchCause((cause) =>
+      Effect.logWarning("managed service registration check failed; shutting down", {
+        cause,
         serviceID: id,
         servicePID: process.pid,
         registration: file,
-      }),
+      }).pipe(Effect.andThen(Effect.failCause(cause))),
     ),
+    Effect.tap((found) =>
+      owns(found)
+        ? Effect.void
+        : Effect.logWarning("managed service registration replaced; shutting down", {
+            serviceID: id,
+            servicePID: process.pid,
+            registration: file,
+            observedServiceID: found.id,
+            observedServicePID: found.pid,
+            observedVersion: found.version,
+            observedURL: found.url,
+          }),
+    ),
+    Effect.filterOrFail(owns),
+    Effect.repeat(Schedule.spaced("5 seconds")),
     Effect.ignore,
     Effect.andThen(shutdown),
     Effect.forkScoped,