diff --git a/templates/error/descriptions/H400.md b/templates/error/descriptions/H400.md
new file mode 100644
index 000000000..3f187b145
--- /dev/null
+++ b/templates/error/descriptions/H400.md
@@ -0,0 +1,4 @@
+# Bad request
+The server could not process your request.
+
+You will need to adjust the request to continue.
diff --git a/templates/error/descriptions/H401.md b/templates/error/descriptions/H401.md
new file mode 100644
index 000000000..d932d6616
--- /dev/null
+++ b/templates/error/descriptions/H401.md
@@ -0,0 +1,4 @@
+# Not logged in
+This resource is only accessible by logged in agents.
+
+Try logging in and revisiting this resource.
diff --git a/templates/error/descriptions/H403.md b/templates/error/descriptions/H403.md
new file mode 100644
index 000000000..77dcf10c8
--- /dev/null
+++ b/templates/error/descriptions/H403.md
@@ -0,0 +1,4 @@
+# Access not allowed
+You are logged in, but not allowed to access this resource.
+
+Try requesting access or logging in with a different identity.
diff --git a/templates/error/descriptions/H404.md b/templates/error/descriptions/H404.md
new file mode 100644
index 000000000..f5df95add
--- /dev/null
+++ b/templates/error/descriptions/H404.md
@@ -0,0 +1,5 @@
+# Resource not found
+The requested resource was not found.
+
+Please check whether the URL is correct,
+or create a new resource at this URL.