diff --git a/cache/doc.go b/cache/doc.go
new file mode 100644
index 0000000..ebf302d
--- /dev/null
+++ b/cache/doc.go
@@ -0,0 +1,2 @@
+// Package cache is a memory store for key-value pairs for all loaded symbols available for output.
+package cache
diff --git a/dev/asm/doc.go b/dev/asm/doc.go
new file mode 100644
index 0000000..066e5ad
--- /dev/null
+++ b/dev/asm/doc.go
@@ -0,0 +1,2 @@
+// Executable asm compiles festival assembly code to bytecode instructions.
+package main
diff --git a/dev/disasm/doc.go b/dev/disasm/doc.go
new file mode 100644
index 0000000..3e83254
--- /dev/null
+++ b/dev/disasm/doc.go
@@ -0,0 +1,2 @@
+// Executable disasm generates festival assembly code from bytecode instructions.
+package main
diff --git a/dev/gendata/doc.go b/dev/gendata/doc.go
new file mode 100644
index 0000000..3515165
--- /dev/null
+++ b/dev/gendata/doc.go
@@ -0,0 +1,2 @@
+// Execution gendata output testdata provisions compatible with resource.FsResource to a filesystem directory.
+package main
diff --git a/dev/interactive/doc.go b/dev/interactive/doc.go
new file mode 100644
index 0000000..ba44358
--- /dev/null
+++ b/dev/interactive/doc.go
@@ -0,0 +1,2 @@
+// Executable interactive runs the Engine execution loop against interactive client input in the terminal.
+package main
diff --git a/engine/doc.go b/engine/doc.go
new file mode 100644
index 0000000..40d8e42
--- /dev/null
+++ b/engine/doc.go
@@ -0,0 +1,2 @@
+// Package engine orchestrates client input with vm execution.
+package engine
diff --git a/persist/doc.go b/persist/doc.go
new file mode 100644
index 0000000..902a244
--- /dev/null
+++ b/persist/doc.go
@@ -0,0 +1,2 @@
+// Package persist enables persistent storage of the execution state.
+package persist
diff --git a/render/doc.go b/render/doc.go
new file mode 100644
index 0000000..ae7c8d1
--- /dev/null
+++ b/render/doc.go
@@ -0,0 +1,2 @@
+// Package render handles output size constraints and paginated rendering of contents and menus against templates.
+package render
diff --git a/resource/doc.go b/resource/doc.go
new file mode 100644
index 0000000..e1091e1
--- /dev/null
+++ b/resource/doc.go
@@ -0,0 +1,2 @@
+// Package resource interfaces retrieval of bytecode, output templates and external code execution.
+package resource