diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..6e4266f
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,3 @@
+__pycache__/
+*.py[cod]
+*$py.class
diff --git a/README.md b/README.md
index 612c8e1..f7f046c 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 
 This repo is the canonical spec. Vendor it into any project that wants the pattern.
 
-## What's new in 1.5
+## What's new in 1.12
 
 More features, more reach, and a tighter runtime:
 
@@ -24,8 +24,8 @@ More features, more reach, and a tighter runtime:
   snapshot.
 - **Always-on invocation** — a `UserPromptSubmit` hook routes every message
   through the runtime with no trigger keyword, now including a Gemini CLI target.
-- **One-command test suite** — `npm test` runs both the Node CLI/hook tests and
-  the full Python kernel suite (44 tests) in a single pass.
+- **One-command test suite** — `npm test` runs the Node CLI/hook/cache/target
+  tests plus the full Python kernel suite (100 tests) in a single pass.
 
 ## Scope — where simplicio-prompt actually wins
 
diff --git a/package.json b/package.json
index bdfa6e7..d51635e 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,10 @@
     "docs/",
     "YOOL_TUPLE_HAMT.md",
     "README.md",
-    "LICENSE"
+    "LICENSE",
+    "!**/__pycache__/**",
+    "!**/*.py[cod]",
+    "!**/*$py.class"
   ],
   "scripts": {
     "print": "node bin/simplicio-prompt.mjs",