diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..897af4a
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,3 @@
+.nyc_output/
+node_modules/
+test/
diff --git a/package.json b/package.json
index 3ff40b2..dfaee7a 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "mocha-froth",
+  "name": "mocha-foam",
   "version": "0.1.0",
   "main": "out/src/index.js",
   "author": "ssube <seansube@gmail.com>",
diff --git a/src/index.ts b/src/index.ts
index 43907a2..7197113 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -113,7 +113,8 @@ export function formatPrefix<T>(details: RunDetails<[T]>): string {
 }
 
 /**
- * Guess whether the run threw an error.
+ * Guess whether the run threw an error. Looks for strings starting with `Error` or a typed error
+ * like `AssertionError`.
  *
  * @private
  */