diff --git a/src/agents/embedded-agent-runner/run.overflow-compaction.loop.test.ts b/src/agents/embedded-agent-runner/run.overflow-compaction.loop.test.ts
index 37f43530521e..61d63d05d2c9 100644
--- a/src/agents/embedded-agent-runner/run.overflow-compaction.loop.test.ts
+++ b/src/agents/embedded-agent-runner/run.overflow-compaction.loop.test.ts
@@ -14,6 +14,7 @@ import {
   mockedIsCompactionFailureError,
   mockedIsLikelyContextOverflowError,
   mockedLog,
+  mockedMarkAuthProfileSuccess,
   mockedResolveModelAsync,
   mockedRunEmbeddedAttempt,
   mockedSessionLikelyHasOversizedToolResults,
@@ -187,6 +188,22 @@ describe("overflow compaction in run loop", () => {
     expect(requireMockCallArg(mockedRunEmbeddedAttempt, 0).thinkLevel).toBe("adaptive");
   });
 
+  it("does not wait for post-run auth-profile success bookkeeping before returning", async () => {
+    let resolveSuccess!: () => void;
+    const successPromise = new Promise<void>((resolve) => {
+      resolveSuccess = resolve;
+    });
+    mockedMarkAuthProfileSuccess.mockReturnValueOnce(successPromise);
+    mockedRunEmbeddedAttempt.mockResolvedValueOnce(makeAttemptResult());
+
+    const result = await runEmbeddedAgent(baseParams);
+
+    expect(result.meta.error).toBeUndefined();
+    expect(mockedMarkAuthProfileSuccess).toHaveBeenCalledTimes(1);
+    resolveSuccess();
+    await successPromise;
+  });
+
   it("continues from transcript after compaction when the current inbound message was persisted", async () => {
     const overflowError = makeOverflowError();
 
diff --git a/src/agents/embedded-agent-runner/run.ts b/src/agents/embedded-agent-runner/run.ts
index 9e7e95905ff1..2b718aa0c38c 100644
--- a/src/agents/embedded-agent-runner/run.ts
+++ b/src/agents/embedded-agent-runner/run.ts
@@ -31,6 +31,7 @@ import {
 import { sleepWithAbort } from "../../infra/backoff.js";
 import { freezeDiagnosticTraceContext } from "../../infra/diagnostic-trace-context.js";
 import { formatErrorMessage, toErrorObject } from "../../infra/errors.js";
+import { redactIdentifier } from "../../logging/redact-identifier.js";
 import { buildAgentHookContextChannelFields } from "../../plugins/hook-agent-context.js";
 import { getGlobalHookRunner } from "../../plugins/hook-runner-global.js";
 import { resolveProviderAuthProfileId } from "../../plugins/provider-runtime.js";
@@ -599,6 +600,8 @@ function resolveInitialEmbeddedRunModel(params: {
   };
 }
 
+const POST_RUN_AUTH_PROFILE_SUCCESS_SLOW_MS = 1_000;
+
 export function runEmbeddedAgent(
   paramsInput: RunEmbeddedAgentParams,
 ): Promise<EmbeddedAgentRunResult> {
@@ -1733,6 +1736,48 @@ async function runEmbeddedAgentInternal(
           modelId: failure.modelId,
         });
       };
+      const markAuthProfileSuccessAfterRun = () => {
+        if (!lastProfileId) {
+          return;
+        }
+        const successProfileId = lastProfileId;
+        const safeSuccessProfileId = redactIdentifier(successProfileId, { len: 12 });
+        const successProvider = resolveAuthProfileStateProvider(
+          profileFailureStore,
+          successProfileId,
+          provider,
+        );
+        const successStarted = Date.now();
+        void markAuthProfileSuccess({
+          store: profileFailureStore,
+          provider: successProvider,
+          profileId: successProfileId,
+          agentDir: params.agentDir,
+        })
+          .then(() => {
+            const durationMs = Date.now() - successStarted;
+            if (durationMs >= POST_RUN_AUTH_PROFILE_SUCCESS_SLOW_MS) {
+              log.warn(
+                `post-run auth-profile success bookkeeping completed after ${durationMs}ms: ` +
+                  `runId=${params.runId} sessionId=${params.sessionId} ` +
+                  `provider=${sanitizeForLog(successProvider)} profileId=${safeSuccessProfileId}`,
+              );
+            } else if (log.isEnabled("trace")) {
+              log.trace(
+                `post-run auth-profile success bookkeeping completed: ` +
+                  `runId=${params.runId} sessionId=${params.sessionId} durationMs=${durationMs}`,
+              );
+            }
+          })
+          .catch((err: unknown) => {
+            log.warn(
+              `post-run auth-profile success bookkeeping failed: ` +
+                `runId=${params.runId} sessionId=${params.sessionId} ` +
+                `provider=${sanitizeForLog(successProvider)} profileId=${safeSuccessProfileId} ` +
+                `error=${formatErrorMessage(err)}`,
+            );
+          });
+      };
       const resolveRunAuthProfileFailureReason = (
         failoverReason: FailoverReason | null,
         opts?: { providerStarted?: boolean; transientRateLimit?: boolean },
@@ -4036,18 +4081,7 @@ async function runEmbeddedAgentInternal(
           log.debug(
             `embedded run done: runId=${params.runId} sessionId=${params.sessionId} durationMs=${Date.now() - started} aborted=${aborted}`,
           );
-          if (lastProfileId) {
-            await markAuthProfileSuccess({
-              store: profileFailureStore,
-              provider: resolveAuthProfileStateProvider(
-                profileFailureStore,
-                lastProfileId,
-                provider,
-              ),
-              profileId: lastProfileId,
-              agentDir: params.agentDir,
-            });
-          }
+          markAuthProfileSuccessAfterRun();
           const replayInvalid = resolveReplayInvalidForAttempt(null);
           const livenessState = attempt.yieldDetected
             ? "paused"