diff --git a/.claude/skills/tiny-blocks-create/assets/config/.gitattributes b/.claude/skills/tiny-blocks-create/assets/config/.gitattributes
index 2bd9baa..7f1ede8 100644
--- a/.claude/skills/tiny-blocks-create/assets/config/.gitattributes
+++ b/.claude/skills/tiny-blocks-create/assets/config/.gitattributes
@@ -2,6 +2,9 @@
 
 *.php text diff=php
 
+# Keep Claude tooling scripts out of GitHub language stats
+/.claude/**/*.py linguist-vendored
+
 # Dev-only, excluded from the Packagist tarball
 /.github             export-ignore
 /tests               export-ignore
diff --git a/.claude/skills/tiny-blocks-create/assets/config/.gitignore b/.claude/skills/tiny-blocks-create/assets/config/.gitignore
index c8f4364..55ebe78 100644
--- a/.claude/skills/tiny-blocks-create/assets/config/.gitignore
+++ b/.claude/skills/tiny-blocks-create/assets/config/.gitignore
@@ -26,3 +26,7 @@ infection.log
 Thumbs.db
 .DS_Store
 Desktop.ini
+
+# Cache from .claude Python hooks
+__pycache__/
+*.pyc
diff --git a/.gitattributes b/.gitattributes
index 2bd9baa..7f1ede8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -2,6 +2,9 @@
 
 *.php text diff=php
 
+# Keep Claude tooling scripts out of GitHub language stats
+/.claude/**/*.py linguist-vendored
+
 # Dev-only, excluded from the Packagist tarball
 /.github             export-ignore
 /tests               export-ignore
diff --git a/.gitignore b/.gitignore
index c8f4364..55ebe78 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,7 @@ infection.log
 Thumbs.db
 .DS_Store
 Desktop.ini
+
+# Cache from .claude Python hooks
+__pycache__/
+*.pyc
diff --git a/composer.json b/composer.json
index 495711a..a3a94e7 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
     },
     "require-dev": {
         "ergebnis/composer-normalize": "^2.52",
-        "guzzlehttp/psr7": "^2.9",
+        "guzzlehttp/psr7": "^2.12",
         "infection/infection": "^0.33",
         "phpstan/phpstan": "^2.2",
         "phpunit/phpunit": "^13.1",