diff --git a/package.json b/package.json
index afa70329..c979603a 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
   },
   "files": [
     "AGENTS.md",
+    "commands/",
     "hooks/",
     "skills/",
     ".opencode/",
diff --git a/tests/gemini-extension.test.js b/tests/gemini-extension.test.js
index db096617..269f41fd 100644
--- a/tests/gemini-extension.test.js
+++ b/tests/gemini-extension.test.js
@@ -20,7 +20,10 @@ const VERSIONED_MANIFESTS = [
   'gemini-extension.json',
   '.claude-plugin/plugin.json',
   '.codex-plugin/plugin.json',
+  '.devin-plugin/plugin.json',
   '.github/plugin/plugin.json',
+  'package.json',
+  'ponytail-mcp/package.json',
 ];
 // Gemini auto-discovers these by directory; the manifest is only useful if they exist.
 const REUSED_COMMANDS = ['commands/ponytail.toml', 'commands/ponytail-review.toml'];