diff --git a/tools/python/defs.bzl b/tools/python/defs.bzl
index b25af1d..17b20c2 100644
--- a/tools/python/defs.bzl
+++ b/tools/python/defs.bzl
@@ -43,6 +43,7 @@ def py_pytest(name, srcs, deps, main=None, python_version=None, args=None, **kwa
         py_requirement("pytest-pudb"),
         py_requirement("pytest-cov"),
         py_requirement("pytest-timeout"),
+        py_requirement("pytest-clarity"),
     ] + deps))
 
     srcs = [f] + srcs
diff --git a/tools/python/requirements.in b/tools/python/requirements.in
index f41f110..0c9f421 100644
--- a/tools/python/requirements.in
+++ b/tools/python/requirements.in
@@ -2,8 +2,10 @@ attrs
 black
 cattrs
 hypothesis
+lark
 pudb
 pytest
+pytest-clarity
 pytest-cov
 pytest-pudb
 pytest-timeout
diff --git a/tools/python/requirements_lock.txt b/tools/python/requirements_lock.txt
index 0c07594..7278701 100644
--- a/tools/python/requirements_lock.txt
+++ b/tools/python/requirements_lock.txt
@@ -9,19 +9,25 @@ hypothesis==6.68.2
 iniconfig==2.0.0
 isort==5.12.0
 jedi==0.18.2
+lark==1.1.5
+markdown-it-py==2.2.0
+mdurl==0.1.2
 mypy-extensions==1.0.0
 packaging==23.0
 parso==0.8.3
 pathspec==0.11.0
 platformdirs==3.1.0
 pluggy==1.0.0
+pprintpp==0.4.0
 pudb==2022.1.3
 pyflakes==3.0.1
 Pygments==2.14.0
 pytest==7.2.2
+pytest-clarity==1.0.1
 pytest-cov==4.0.0
 pytest-pudb==0.7.0
 pytest-timeout==2.1.0
+rich==13.3.5
 sortedcontainers==2.4.0
 tomli==2.0.1
 urwid==2.1.2