diff --git a/manual_slop.toml b/manual_slop.toml
index fc304ea..8f0b00b 100644
--- a/manual_slop.toml
+++ b/manual_slop.toml
@@ -43,6 +43,25 @@ search_files = true
 get_file_summary = true
 web_search = true
 fetch_url = true
+py_get_skeleton = true
+py_get_code_outline = true
+get_file_slice = true
+py_get_definition = true
+py_get_signature = true
+py_get_class_summary = true
+py_get_var_declaration = true
+get_git_diff = true
+py_find_usages = true
+py_get_imports = true
+py_check_syntax = true
+py_get_hierarchy = true
+py_get_docstring = true
+get_tree = true
+get_ui_performance = true
+set_file_slice = false
+py_update_definition = false
+py_set_signature = false
+py_set_var_declaration = false
 
 [gemini_cli]
 binary_path = "C:\\projects\\manual_slop\\.venv\\Scripts\\python.exe C:\\projects\\manual_slop\\tests\\mock_gemini_cli.py"
diff --git a/project_manager.py b/project_manager.py
index 5b21bb0..0356741 100644
--- a/project_manager.py
+++ b/project_manager.py
@@ -102,7 +102,26 @@ def default_project(name: str = "unnamed") -> dict[str, Any]:
     "search_files": True,
     "get_file_summary": True,
     "web_search": True,
-    "fetch_url": True
+    "fetch_url": True,
+    "py_get_skeleton": True,
+    "py_get_code_outline": True,
+    "get_file_slice": True,
+    "py_get_definition": True,
+    "py_get_signature": True,
+    "py_get_class_summary": True,
+    "py_get_var_declaration": True,
+    "get_git_diff": True,
+    "py_find_usages": True,
+    "py_get_imports": True,
+    "py_check_syntax": True,
+    "py_get_hierarchy": True,
+    "py_get_docstring": True,
+    "get_tree": True,
+    "get_ui_performance": True,
+    "set_file_slice": False,
+    "py_update_definition": False,
+    "py_set_signature": False,
+    "py_set_var_declaration": False,
    }
   },
   "discussion":  {
diff --git a/tests/test_arch_boundary_phase2.py b/tests/test_arch_boundary_phase2.py
new file mode 100644
index 0000000..dd1ea63
--- /dev/null
+++ b/tests/test_arch_boundary_phase2.py
@@ -0,0 +1,57 @@
+"""
+Tests for architecture_boundary_hardening_20260302 — Phase 2.
+Tasks 2.1-2.4: MCP tool config exposure + MUTATING_TOOLS + HITL enforcement.
+"""
+import tomllib
+import pytest
+from project_manager import default_project
+
+MUTATING_TOOLS = {"set_file_slice", "py_update_definition", "py_set_signature", "py_set_var_declaration"}
+ALL_DISPATCH_TOOLS = {
+ "run_powershell", "read_file", "list_directory", "search_files", "get_file_summary",
+ "web_search", "fetch_url", "py_get_skeleton", "py_get_code_outline", "get_file_slice",
+ "py_get_definition", "py_update_definition", "py_get_signature", "py_set_signature",
+ "py_get_class_summary", "py_get_var_declaration", "py_set_var_declaration", "get_git_diff",
+ "py_find_usages", "py_get_imports", "py_check_syntax", "py_get_hierarchy",
+ "py_get_docstring", "get_tree", "get_ui_performance", "set_file_slice",
+}
+
+
+# ---------------------------------------------------------------------------
+# Task 2.1: manual_slop.toml and default_project() expose all tools
+# ---------------------------------------------------------------------------
+
+def test_toml_exposes_all_dispatch_tools():
+ """manual_slop.toml [agent.tools] must list every tool in mcp_client.dispatch()."""
+ with open("manual_slop.toml", "rb") as f:
+  config = tomllib.load(f)
+ toml_tools = set(config["agent"]["tools"].keys())
+ missing = ALL_DISPATCH_TOOLS - toml_tools
+ assert not missing, f"Tools missing from manual_slop.toml: {missing}"
+
+
+def test_toml_mutating_tools_disabled_by_default():
+ """Mutating tools must default to false in manual_slop.toml."""
+ with open("manual_slop.toml", "rb") as f:
+  config = tomllib.load(f)
+ tools = config["agent"]["tools"]
+ for tool in MUTATING_TOOLS:
+  assert tool in tools, f"{tool} missing from toml"
+  assert tools[tool] is False, f"Mutating tool '{tool}' should default to false"
+
+
+def test_default_project_exposes_all_dispatch_tools():
+ """default_project() agent.tools must list every tool in mcp_client.dispatch()."""
+ proj = default_project()
+ project_tools = set(proj["agent"]["tools"].keys())
+ missing = ALL_DISPATCH_TOOLS - project_tools
+ assert not missing, f"Tools missing from default_project(): {missing}"
+
+
+def test_default_project_mutating_tools_disabled():
+ """Mutating tools must default to False in default_project()."""
+ proj = default_project()
+ tools = proj["agent"]["tools"]
+ for tool in MUTATING_TOOLS:
+  assert tool in tools, f"{tool} missing from default_project"
+  assert tools[tool] is False, f"Mutating tool '{tool}' should default to False"