diff --git a/src/resources/extensions/gsd/error-classifier.ts b/src/resources/extensions/gsd/error-classifier.ts
index 786a5c5d6..c63927b98 100644
--- a/src/resources/extensions/gsd/error-classifier.ts
+++ b/src/resources/extensions/gsd/error-classifier.ts
@@ -47,7 +47,7 @@ const RATE_LIMIT_RE = /rate.?limit|too many requests|429/i;
 const NETWORK_RE = /network|ECONNRESET|ETIMEDOUT|ECONNREFUSED|socket hang up|fetch failed|connection.*reset|dns/i;
 const SERVER_RE = /internal server error|500|502|503|overloaded|server_error|api_error|service.?unavailable/i;
 // ECONNRESET/ECONNREFUSED are in NETWORK_RE (same-model retry first).
-const CONNECTION_RE = /terminated|connection.?refused|other side closed|EPIPE|network.?(?:is\s+)?unavailable/i;
+const CONNECTION_RE = /terminated|connection.?refused|other side closed|EPIPE|network.?(?:is\s+)?unavailable|stream_exhausted(?:_without_result)?/i;
 const STREAM_RE = /Unexpected end of JSON|Unexpected token.*JSON|Expected double-quoted property name|SyntaxError.*JSON/i;
 const RESET_DELAY_RE = /reset in (\d+)s/i;
 
diff --git a/src/resources/extensions/gsd/tests/provider-errors.test.ts b/src/resources/extensions/gsd/tests/provider-errors.test.ts
index 901e9a0c7..dfe07867c 100644
--- a/src/resources/extensions/gsd/tests/provider-errors.test.ts
+++ b/src/resources/extensions/gsd/tests/provider-errors.test.ts
@@ -43,6 +43,13 @@ test("classifyError defaults to 60s for rate limit without reset", () => {
   assert.ok("retryAfterMs" in result && result.retryAfterMs === 60_000);
 });
 
+test("classifyError treats stream_exhausted_without_result as transient connection failure", () => {
+  const result = classifyError("stream_exhausted_without_result");
+  assert.ok(isTransient(result));
+  assert.equal(result.kind, "connection");
+  assert.ok("retryAfterMs" in result && result.retryAfterMs === 15_000);
+});
+
 test("classifyError detects Anthropic internal server error", () => {
   const msg = '{"type":"error","error":{"details":null,"type":"api_error","message":"Internal server error"}}';
   const result = classifyError(msg);