Import zod as a namespace everywhere and lint against the z import

.oxlintrc.json

@@ -89,6 +89,7 @@
     "jsx-a11y/role-has-required-aria-props": "off",
     "no-unmodified-loop-condition": "off",
     "oxc/no-accumulating-spread": "error",
+    "zod-imports/namespace": "error",
     "anti-slop/no-array-filter-map": "error",
     "anti-slop/no-reduce-accumulator-copy": "error",
     "anti-slop/require-readable-spacing": "error",
@@ -117,6 +118,10 @@
       "name": "canvas-styles",
       "specifier": "./tools/oxlint/canvas-styles/index.ts"
     },
+    {
+      "name": "zod-imports",
+      "specifier": "./tools/oxlint/zod-imports/index.ts"
+    },
     {
       "name": "stylex",
       "specifier": "@stylexjs/eslint-plugin"

AGENTS.md

@@ -42,7 +42,8 @@ review.
   `pnpm --filter @dev.fast/review-desktop protocol:sync`. The fork's protocol
   copy is generated and gitignored.
 - Prefer named static imports from public package entry points over namespace
-  imports.
+  imports. zod is the exception: `import * as z from "zod"`, since its `z`
+  export keeps every locale in a bundle (`zod-imports/namespace` enforces it).
 
 ## Agent capability switches
 

diffr/diffr-ts/src/contract.ts

@@ -4,7 +4,7 @@
  * Defaults are omitted, not null. Lines are zero-based, columns are UTF-8 bytes,
  * and ranges are half-open.
  */
-import { z } from "zod";
+import * as z from "zod";
 
 /** A pairing always has at least one side; additions/deletions omit the other. */
 export type StructuralPairing<T> =