fix(cli): skip json crew sync when locked

lib/cli/src/crewai_cli/run_crew.py

@@ -256,9 +256,16 @@ def _run_json_crew(trained_agents_file: str | None = None) -> Any:
     return app._crew_result
 
 
-def _install_json_crew_dependencies() -> None:
-    """Lock and sync JSON crew projects before loading them in-process."""
-    if not (Path.cwd() / "pyproject.toml").is_file():
+def _has_lockfile(project_root: Path | None = None) -> bool:
+    """Return True when the project already has a dependency lockfile."""
+    root = project_root or Path.cwd()
+    return (root / "uv.lock").is_file() or (root / "poetry.lock").is_file()
+
+
+def _install_json_crew_dependencies_if_needed() -> None:
+    """Lock and sync JSON crew projects only when no lockfile exists."""
+    project_root = Path.cwd()
+    if not (project_root / "pyproject.toml").is_file() or _has_lockfile(project_root):
         return
 
     from crewai_cli.install_crew import install_crew
@@ -286,7 +293,7 @@ def _run_json_crew_in_project_env(trained_agents_file: str | None = None) -> Any
     if not (Path.cwd() / "pyproject.toml").is_file():
         return _run_json_crew(trained_agents_file=trained_agents_file)
 
-    _install_json_crew_dependencies()
+    _install_json_crew_dependencies_if_needed()
 
     command = ["uv", "run", "--no-sync", "python", "-c", _JSON_CREW_RUNNER_CODE]
     env = build_env_with_all_tool_credentials()

lib/cli/tests/test_run_crew.py

@@ -39,7 +39,7 @@ def test_json_run_uses_project_env_when_pyproject_exists(monkeypatch, tmp_path:
 
     monkeypatch.setattr(
         run_crew_module,
-        "_install_json_crew_dependencies",
+        "_install_json_crew_dependencies_if_needed",
         lambda: install_calls.append(True),
     )
     monkeypatch.setattr(
@@ -161,7 +161,9 @@ def test_json_project_env_run_failure_exits_nonzero(monkeypatch, tmp_path: Path)
     monkeypatch.chdir(tmp_path)
     (tmp_path / "pyproject.toml").write_text("[project]\nname = 'demo'\n")
 
-    monkeypatch.setattr(run_crew_module, "_install_json_crew_dependencies", lambda: None)
+    monkeypatch.setattr(
+        run_crew_module, "_install_json_crew_dependencies_if_needed", lambda: None
+    )
     monkeypatch.setattr(
         run_crew_module, "build_env_with_all_tool_credentials", lambda: {}
     )
@@ -177,10 +179,10 @@ def test_json_project_env_run_failure_exits_nonzero(monkeypatch, tmp_path: Path)
     assert exc_info.value.code == 7
 
 
-def test_json_run_installs_dependencies_when_pyproject_exists(
+def test_json_run_installs_dependencies_when_pyproject_has_no_lockfile(
     monkeypatch, tmp_path: Path
 ):
-    """JSON crew runs should lock/sync project dependencies before loading."""
+    """JSON crew runs should lock/sync project dependencies only once."""
     monkeypatch.chdir(tmp_path)
     (tmp_path / "pyproject.toml").write_text("[project]\nname = 'demo'\n")
     calls = []
@@ -192,11 +194,32 @@ def test_json_run_installs_dependencies_when_pyproject_exists(
 
     monkeypatch.setattr("crewai_cli.install_crew.install_crew", fake_install_crew)
 
-    run_crew_module._install_json_crew_dependencies()
+    run_crew_module._install_json_crew_dependencies_if_needed()
 
     assert calls == [([], True, False)]
 
 
+@pytest.mark.parametrize("lockfile", ["uv.lock", "poetry.lock"])
+def test_json_run_skips_dependency_install_when_lockfile_exists(
+    monkeypatch, tmp_path: Path, lockfile: str
+):
+    monkeypatch.chdir(tmp_path)
+    (tmp_path / "pyproject.toml").write_text("[project]\nname = 'demo'\n")
+    (tmp_path / lockfile).write_text("# lock\n")
+    calls = []
+
+    def fake_install_crew(
+        proxy_options, *, raise_on_error=False, install_project=None
+    ):
+        calls.append((proxy_options, raise_on_error, install_project))
+
+    monkeypatch.setattr("crewai_cli.install_crew.install_crew", fake_install_crew)
+
+    run_crew_module._install_json_crew_dependencies_if_needed()
+
+    assert calls == []
+
+
 def test_json_run_skips_dependency_install_without_pyproject(
     monkeypatch, tmp_path: Path
 ):
@@ -210,7 +233,7 @@ def test_json_run_skips_dependency_install_without_pyproject(
 
     monkeypatch.setattr("crewai_cli.install_crew.install_crew", fake_install_crew)
 
-    run_crew_module._install_json_crew_dependencies()
+    run_crew_module._install_json_crew_dependencies_if_needed()
 
     assert calls == []
 
@@ -227,7 +250,7 @@ def test_json_run_install_failure_exits_nonzero(monkeypatch, tmp_path: Path):
     monkeypatch.setattr("crewai_cli.install_crew.install_crew", fake_install_crew)
 
     with pytest.raises(SystemExit) as exc_info:
-        run_crew_module._install_json_crew_dependencies()
+        run_crew_module._install_json_crew_dependencies_if_needed()
 
     assert exc_info.value.code == 42