diff --git a/cmd/tfplugindocs/main.go b/cmd/tfplugindocs/main.go
index 1bf63bf1..df6e336a 100644
--- a/cmd/tfplugindocs/main.go
+++ b/cmd/tfplugindocs/main.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package main
 
 import (
diff --git a/cmd/tfplugindocs/version.go b/cmd/tfplugindocs/version.go
index 1e63a05b..68dc6cee 100644
--- a/cmd/tfplugindocs/version.go
+++ b/cmd/tfplugindocs/version.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package main
 
 var (
diff --git a/internal/cmd/generate.go b/internal/cmd/generate.go
index e41780b2..14275961 100644
--- a/internal/cmd/generate.go
+++ b/internal/cmd/generate.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package cmd
 
 import (
diff --git a/internal/cmd/run.go b/internal/cmd/run.go
index 9438288e..82f47cde 100644
--- a/internal/cmd/run.go
+++ b/internal/cmd/run.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package cmd
 
 import (
diff --git a/internal/cmd/serve.go b/internal/cmd/serve.go
index 4e8f21ee..8d0dde22 100644
--- a/internal/cmd/serve.go
+++ b/internal/cmd/serve.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package cmd
 
 //TODO: this command can run an emulated server to simulate the registry
diff --git a/internal/cmd/validate.go b/internal/cmd/validate.go
index 890ef8d1..c4a406cf 100644
--- a/internal/cmd/validate.go
+++ b/internal/cmd/validate.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package cmd
 
 import (
diff --git a/internal/mdplain/mdplain.go b/internal/mdplain/mdplain.go
index ea2a7789..ded53b65 100644
--- a/internal/mdplain/mdplain.go
+++ b/internal/mdplain/mdplain.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package mdplain
 
 import "github.com/russross/blackfriday"
diff --git a/internal/mdplain/renderer.go b/internal/mdplain/renderer.go
index 143e20f4..660cdae5 100644
--- a/internal/mdplain/renderer.go
+++ b/internal/mdplain/renderer.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package mdplain
 
 import (
diff --git a/internal/provider/generate.go b/internal/provider/generate.go
index 41dc5e96..46f76664 100644
--- a/internal/provider/generate.go
+++ b/internal/provider/generate.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package provider
 
 import (
diff --git a/internal/provider/template.go b/internal/provider/template.go
index 96006e31..2896fde5 100644
--- a/internal/provider/template.go
+++ b/internal/provider/template.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package provider
 
 import (
diff --git a/internal/provider/template_test.go b/internal/provider/template_test.go
index d69f495d..88804e25 100644
--- a/internal/provider/template_test.go
+++ b/internal/provider/template_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package provider
 
 import (
diff --git a/internal/provider/util.go b/internal/provider/util.go
index 00c1e763..06aee6b1 100644
--- a/internal/provider/util.go
+++ b/internal/provider/util.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package provider
 
 import (
diff --git a/internal/provider/util_test.go b/internal/provider/util_test.go
index 3cbc923a..d25bfdc9 100644
--- a/internal/provider/util_test.go
+++ b/internal/provider/util_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package provider
 
 import (
diff --git a/internal/provider/validate.go b/internal/provider/validate.go
index 5bc53656..c2748e80 100644
--- a/internal/provider/validate.go
+++ b/internal/provider/validate.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package provider
 
 import (
diff --git a/internal/tmplfuncs/tmplfuncs.go b/internal/tmplfuncs/tmplfuncs.go
index 99d28f37..8fd393f5 100644
--- a/internal/tmplfuncs/tmplfuncs.go
+++ b/internal/tmplfuncs/tmplfuncs.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package tmplfuncs
 
 import (
diff --git a/schemamd/behaviors.go b/schemamd/behaviors.go
index 954225ea..f0006ef2 100644
--- a/schemamd/behaviors.go
+++ b/schemamd/behaviors.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/behaviors_test.go b/schemamd/behaviors_test.go
index 44ed4d39..cdc93af2 100644
--- a/schemamd/behaviors_test.go
+++ b/schemamd/behaviors_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/render.go b/schemamd/render.go
index 14c06aaa..90617d86 100644
--- a/schemamd/render.go
+++ b/schemamd/render.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/render_test.go b/schemamd/render_test.go
index 40cb44e2..447826db 100644
--- a/schemamd/render_test.go
+++ b/schemamd/render_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd_test
 
 import (
diff --git a/schemamd/write_attribute_description.go b/schemamd/write_attribute_description.go
index 13517b53..a8aa45b9 100644
--- a/schemamd/write_attribute_description.go
+++ b/schemamd/write_attribute_description.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/write_attribute_description_test.go b/schemamd/write_attribute_description_test.go
index 17a929a8..dc2724af 100644
--- a/schemamd/write_attribute_description_test.go
+++ b/schemamd/write_attribute_description_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd_test
 
 import (
diff --git a/schemamd/write_block_type_description.go b/schemamd/write_block_type_description.go
index 14a18153..31ca2782 100644
--- a/schemamd/write_block_type_description.go
+++ b/schemamd/write_block_type_description.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/write_block_type_description_test.go b/schemamd/write_block_type_description_test.go
index 81e29891..16183303 100644
--- a/schemamd/write_block_type_description_test.go
+++ b/schemamd/write_block_type_description_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd_test
 
 import (
diff --git a/schemamd/write_nested_attribute_type_description.go b/schemamd/write_nested_attribute_type_description.go
index f9e90a57..c51be83c 100644
--- a/schemamd/write_nested_attribute_type_description.go
+++ b/schemamd/write_nested_attribute_type_description.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/write_nested_attribute_type_description_test.go b/schemamd/write_nested_attribute_type_description_test.go
index a77b39d2..c576f2df 100644
--- a/schemamd/write_nested_attribute_type_description_test.go
+++ b/schemamd/write_nested_attribute_type_description_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd_test
 
 import (
diff --git a/schemamd/write_type.go b/schemamd/write_type.go
index 0250edd8..d44a9eb4 100644
--- a/schemamd/write_type.go
+++ b/schemamd/write_type.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd
 
 import (
diff --git a/schemamd/write_type_test.go b/schemamd/write_type_test.go
index 2f84dbde..2256b370 100644
--- a/schemamd/write_type_test.go
+++ b/schemamd/write_type_test.go
@@ -1,3 +1,6 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
 package schemamd_test
 
 import (