diff --git a/src/dualentry_cli/commands/__init__.py b/src/dualentry_cli/commands/__init__.py
index e6e43f7..69c3ad5 100644
--- a/src/dualentry_cli/commands/__init__.py
+++ b/src/dualentry_cli/commands/__init__.py
@@ -183,6 +183,7 @@ def make_resource_app(
     resource: str,
     path: str,
     *,
+    has_get: bool = True,
     has_create: bool = True,
     has_update: bool = True,
     has_delete: bool = False,
@@ -254,7 +255,7 @@ def list_cmd(
         sig = inspect.signature(list_cmd)
         list_cmd.__signature__ = sig.replace(parameters=[p for p in sig.parameters.values() if p.name not in remove])
 
-    if has_number:
+    if has_get and has_number:
 
         @app.command("get")
         def get_cmd_auto(
@@ -308,7 +309,8 @@ def get_cmd_by_id(
             format_output(data, resource=resource, fmt=output)
 
         get_cmd_by_id.__doc__ = f"Get a {resource} by ID."
-    else:
+
+    elif has_get and not has_number:
 
         @app.command("get")
         def get_cmd(
diff --git a/src/dualentry_cli/main.py b/src/dualentry_cli/main.py
index 912bdb1..5576943 100644
--- a/src/dualentry_cli/main.py
+++ b/src/dualentry_cli/main.py
@@ -61,13 +61,13 @@
     make_resource_app("fixed assets", "fixed-asset", "fixed-assets", has_number=True, filters={"search", "status", "company", "customer", "vendor"}),
     name="fixed-assets",
 )
-app.add_typer(make_resource_app("depreciation books", "depreciation-book", "depreciation-books", filters=set()), name="depreciation-books")
+app.add_typer(make_resource_app("depreciation books", "depreciation-book", "depreciation-books", has_create=False, has_update=False, filters=set()), name="depreciation-books")
 
 # Entities
 app.add_typer(make_resource_app("customers", "customer", "customers", filters={"search", "status", "company"}), name="customers")
 app.add_typer(make_resource_app("vendors", "vendor", "vendors", filters=TXN), name="vendors")
 app.add_typer(make_resource_app("items", "item", "items", filters={"search", "status"}), name="items")
-app.add_typer(make_resource_app("companies", "company", "companies", filters={"search"}), name="companies")
+app.add_typer(make_resource_app("companies", "company", "companies", has_create=False, has_update=False, filters={"search"}), name="companies")
 app.add_typer(make_resource_app("classifications", "classification", "classifications", filters={"search"}), name="classifications")
 
 # Recurring
@@ -84,7 +84,7 @@
 # Other
 # Contracts name their status filter `status`, not `record_status`.
 app.add_typer(make_resource_app("contracts", "contract", "contracts", filters=TXN_CUSTOMER, status_param="status"), name="contracts")
-app.add_typer(make_resource_app("budgets", "budget", "budgets", filters={"search", "status", "company"}), name="budgets")
+app.add_typer(make_resource_app("budgets", "budget", "budgets", has_create=False, has_update=False, filters={"search", "status", "company"}), name="budgets")
 app.add_typer(
     make_resource_app("workflows", "workflow", "workflows", has_create=False, has_update=False, filters={"search", "company"}),
     name="workflows",
@@ -103,8 +103,8 @@
     ),
     name="intercompany-journal-entries",
 )
-app.add_typer(make_resource_app("paper checks", "paper-check", "paper-checks", has_number=True, filters=TXN_ALL_PARTIES), name="paper-checks")
-app.add_typer(make_resource_app("inbox items", "inbox-item", "inbox", has_create=False, has_update=False, filters={"search"}), name="inbox")
+app.add_typer(make_resource_app("paper checks", "paper-check", "paper-checks", has_create=False, has_update=False, filters=TXN_ALL_PARTIES), name="paper-checks")
+app.add_typer(make_resource_app("inbox items", "inbox-item", "inbox", has_get=False, has_create=False, has_update=False, filters={"search"}), name="inbox")
 
 
 def version_callback(value: bool):
diff --git a/tests/test_stale_commands.py b/tests/test_stale_commands.py
new file mode 100644
index 0000000..f3fbf39
--- /dev/null
+++ b/tests/test_stale_commands.py
@@ -0,0 +1,44 @@
+from __future__ import annotations
+
+import pytest
+
+from dualentry_cli.main import app
+
+STALE_COMMANDS = [
+    ("companies", "create"),
+    ("companies", "update"),
+    ("budgets", "create"),
+    ("budgets", "update"),
+    ("depreciation-books", "create"),
+    ("depreciation-books", "update"),
+    ("paper-checks", "create"),
+    ("paper-checks", "update"),
+    ("inbox", "get"),
+]
+
+
+def _commands(resource: str) -> set[str]:
+    group = next(g for g in app.registered_groups if g.name == resource)
+    return {c.name for c in group.typer_instance.registered_commands}
+
+
+@pytest.mark.parametrize(("resource", "command"), STALE_COMMANDS)
+def test_stale_command_is_not_registered(resource: str, command: str):
+    assert command not in _commands(resource), f"'dualentry {resource} {command}' has no v2 route and must not be registered"
+
+
+@pytest.mark.parametrize("resource", ["companies", "budgets", "depreciation-books", "paper-checks"])
+def test_read_only_resource_keeps_its_read_commands(resource: str):
+    assert _commands(resource) == {"list", "get"}
+
+
+def test_inbox_keeps_only_list():
+    assert _commands("inbox") == {"list"}
+
+
+def test_paper_checks_has_no_number_lookups():
+    assert not _commands("paper-checks") & {"get-number", "get-id"}
+
+
+def test_writable_resource_is_untouched():
+    assert {"create", "update"} <= _commands("invoices")