diff --git a/cli/main.py b/cli/main.py
index bbd1971..caf7e8d 100644
--- a/cli/main.py
+++ b/cli/main.py
@@ -44,13 +44,13 @@ def _cli_version() -> str:
 
 def _version_callback(value: bool) -> None:
     if value:
-        typer.echo(f"da {_cli_version()}")
+        typer.echo(f"agnes {_cli_version()}")
         raise typer.Exit()
 
 
 app = typer.Typer(
-    name="da",
-    help="AI Data Analyst CLI — data sync, queries, and admin for AI agents",
+    name="agnes",
+    help="Agnes — AI Data Analyst CLI",
     no_args_is_help=True,
 )
 
diff --git a/pyproject.toml b/pyproject.toml
index 9988dc4..a5e94eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -79,7 +79,7 @@ dev = [
 ]
 
 [project.scripts]
-da = "cli.main:app"
+agnes = "cli.main:app"
 
 [build-system]
 requires = ["hatchling"]
diff --git a/tests/test_cli_binary_rename.py b/tests/test_cli_binary_rename.py
new file mode 100644
index 0000000..785bb61
--- /dev/null
+++ b/tests/test_cli_binary_rename.py
@@ -0,0 +1,29 @@
+"""Confirm the wheel installs the binary as `agnes`, not `da`."""
+
+import subprocess
+
+
+def test_agnes_command_exists():
+    """`agnes --version` must succeed once the package is editable-installed."""
+    result = subprocess.run(
+        ["agnes", "--version"],
+        capture_output=True,
+        text=True,
+    )
+    assert result.returncode == 0, (
+        f"agnes --version failed (rc={result.returncode}); "
+        f"stdout={result.stdout!r} stderr={result.stderr!r}"
+    )
+
+
+def test_da_command_no_longer_works():
+    """Greenfield rename: no backward-compat alias kept for `da`."""
+    result = subprocess.run(
+        ["bash", "-c", "command -v da"],
+        capture_output=True,
+        text=True,
+    )
+    assert result.returncode != 0, (
+        f"`da` should NOT be on PATH after the rename, but resolved to: "
+        f"{result.stdout.strip()!r}"
+    )