diff --git a/src/simple_scibuddy/coevolve/loop.py b/src/simple_scibuddy/coevolve/loop.py
index 8570cef..9e29b47 100644
--- a/src/simple_scibuddy/coevolve/loop.py
+++ b/src/simple_scibuddy/coevolve/loop.py
@@ -186,6 +186,7 @@ def run(config, cfg):
                 "max_output_tokens": hcfg["max_tokens"],
                 "context_tokens": hcfg["context_tokens"],
                 "rollout_timeout_seconds": hcfg["seconds"],
+                "tool_seconds": cfg["tool_seconds"],
                 "tool_response_tokens": hcfg["tool_response_tokens"],
                 "tool_history_tokens": hcfg["tool_history_tokens"],
                 "train_index": str(root / "train.jsonl"),
diff --git a/src/simple_scibuddy/coevolve/worker.py b/src/simple_scibuddy/coevolve/worker.py
index eac2477..0128839 100644
--- a/src/simple_scibuddy/coevolve/worker.py
+++ b/src/simple_scibuddy/coevolve/worker.py
@@ -39,7 +39,8 @@ def plan_round(cfg, directory, steps=50):
                   no_eval=False, no_checkpoint=False, eval_samples=1, eval_temperature=0.0)
     mapping = {"context_tokens": "context_tokens", "max_output_tokens": "max_tokens",
                "max_model_calls": "actions", "rollout_timeout_seconds": "seconds",
-               "tool_response_tokens": "tool_response_tokens", "tool_history_tokens": "tool_history_tokens"}
+               "tool_seconds": "tool_seconds", "tool_response_tokens": "tool_response_tokens",
+               "tool_history_tokens": "tool_history_tokens"}
     for source, destination in mapping.items():
         value = contract[source]
         if not isinstance(value, int) or isinstance(value, bool) or value < 1:
diff --git a/tests/test_explicit_dataset.py b/tests/test_explicit_dataset.py
index 1d9be11..2e364d4 100644
--- a/tests/test_explicit_dataset.py
+++ b/tests/test_explicit_dataset.py
@@ -75,7 +75,7 @@ def test_rl_handoff_accepts_only_declared_train_test_ids(tmp_path, monkeypatch):
     contract = dict(thinking_enabled=False, execution_network='disabled', temperature=1.0, top_p=1.0,
                     top_k=-1, entrypoint='run(task, api)', max_model_calls=9, max_tool_calls=9,
                     context_tokens=24576, max_output_tokens=4096, rollout_timeout_seconds=900,
-                    tool_response_tokens=2048, tool_history_tokens=8192)
+                    tool_seconds=47, tool_response_tokens=2048, tool_history_tokens=8192)
     for split, key in [('train', 'train_index'), ('test', 'eval_index')]:
         path = tmp_path / f'{split}.jsonl'
         path.write_text(''.join(json.dumps(r) + '\n' for r in rows if r['split'] == split))
@@ -85,7 +85,8 @@ def test_rl_handoff_accepts_only_declared_train_test_ids(tmp_path, monkeypatch):
     write_json(tmp_path / 'request.json', request)
     monkeypatch.setattr(protocol, 'read_request', lambda _: request)
     monkeypatch.setattr(worker, 'validate_payloads', lambda *args: None)
-    worker.plan_round({'dataset': str(tmp_path / 'dataset')}, tmp_path, 30)
+    _, planned = worker.plan_round({'dataset': str(tmp_path / 'dataset'), 'tool_seconds': 999}, tmp_path, 30)
+    assert planned['tool_seconds'] == contract['tool_seconds'] == 47
     path = tmp_path / 'train.jsonl'
     path.write_text(path.read_text().replace('train-0', 'val-0'))
     with pytest.raises(ValueError, match='differs from frozen'):