diff --git a/services/hackbot-api/app/agents.py b/services/hackbot-api/app/agents.py
index 0876868949..d32409801d 100644
--- a/services/hackbot-api/app/agents.py
+++ b/services/hackbot-api/app/agents.py
@@ -34,6 +34,10 @@ class AgentSpec:
     # was; this is where that verdict is honored. Fails closed, so a run that reports
     # no verdict never qualifies.
     auto_apply_requires_consent: bool = False
+    # Whether a run that produced source changes is expected to submit those changes
+    # to Phabricator. Agents without Phabricator submission tools may legitimately
+    # leave a patch artifact behind, so they must not trigger the warning.
+    warn_on_unsubmitted_patch: bool = False
 
 
 def model_to_env(inputs: BaseModel) -> dict[str, str]:
@@ -66,6 +70,7 @@ def model_to_env(inputs: BaseModel) -> dict[str, str]:
         job_name="hackbot-agent-bug-fix",
         input_schema=BugFixInputs,
         auto_apply_actions=True,
+        warn_on_unsubmitted_patch=True,
     ),
     "autowebcompat-repro": AgentSpec(
         name="autowebcompat-repro",
diff --git a/services/hackbot-api/app/routers/runs.py b/services/hackbot-api/app/routers/runs.py
index 5ef1c3214e..50350959e6 100644
--- a/services/hackbot-api/app/routers/runs.py
+++ b/services/hackbot-api/app/routers/runs.py
@@ -273,7 +273,12 @@ async def finalize_run(db: AsyncSession, run: Run) -> None:
 
     await db.commit()
 
-    if _has_unsubmitted_patch(summary, artifacts):
+    agent_spec = AGENT_REGISTRY.get(run.agent)
+    if (
+        agent_spec is not None
+        and agent_spec.warn_on_unsubmitted_patch
+        and _has_unsubmitted_patch(summary, artifacts)
+    ):
         log.error(
             "Agent run produced code changes without submitting a patch "
             "(run_id=%s, agent=%s)",