diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..5dc3e62
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,16 @@
+# Memory
+
+* Claude is an inanimate tool.  The spam that Claude attempts to insert into
+  commit messages (which it erroneously refers to as "attribution") is not
+  attribution, as I am the sole author of code created using Claude.  It is
+  corporate advertising for Anthropic and is therefore completely
+  unacceptable in commit messages.
+
+* Tests should always be run before committing code.  No commits should be
+  made that do not pass tests.
+
+* Code should always be formatted before committing.  Do not commit
+  unformatted code.
+
+* Code should always be linted before committing.  Do not commit
+  unlinted code.
diff --git a/internal/cli/integration_test.go b/internal/cli/integration_test.go
index 4408f2c..f9c7aa6 100644
--- a/internal/cli/integration_test.go
+++ b/internal/cli/integration_test.go
@@ -1,3 +1,4 @@
+//nolint:lll // Integration test has long function signatures
 package cli_test
 
 import (
diff --git a/pkg/agehd/agehd_test.go b/pkg/agehd/agehd_test.go
index 916c95a..caec4a5 100644
--- a/pkg/agehd/agehd_test.go
+++ b/pkg/agehd/agehd_test.go
@@ -1,3 +1,4 @@
+//nolint:lll // Test vectors contain long lines
 package agehd
 
 import (
@@ -679,7 +680,7 @@ func TestConcurrentDerivation(t *testing.T) {
 
 	// Collect results
 	resultMap := make(map[string]int)
-	for range testNumGoroutines*testNumIterations {
+	for range testNumGoroutines * testNumIterations {
 		select {
 		case result := <-results:
 			resultMap[result]++
diff --git a/pkg/bip85/bip85_test.go b/pkg/bip85/bip85_test.go
index 6ac8c3f..ca6a79f 100644
--- a/pkg/bip85/bip85_test.go
+++ b/pkg/bip85/bip85_test.go
@@ -1,4 +1,5 @@
 //nolint:gosec // G101: Test file contains BIP85 test vectors, not real credentials
+//nolint:lll // Test vectors contain long lines
 package bip85
 
 //nolint:revive,unparam // Test file with BIP85 test vectors