(chore) rush update for new @rushstack/rush-schemas package

Agent-Logs-Url: https://github.com/microsoft/rushstack/sessions/b7297c08-8212-4a0e-b5fa-f4d4ff39a8db

Co-authored-by: iclanton <5010588+iclanton@users.noreply.github.com>

Author: Copilot

common/changes/@microsoft/rush-lib/zod-schema-pilot_2026-04-19.json

@@ -2,7 +2,7 @@
   "changes": [
     {
       "packageName": "@microsoft/rush-lib",
-      "comment": "Pilot for @rushstack/heft-zod-schema-plugin: introduce experiments.zod.ts as a parallel zod-based source of truth for experiments.json. The hand-authored IExperimentsJson interface and experiments.schema.json remain unchanged; a compile-time assertion now guarantees the zod schema stays in sync with the interface.",
+      "comment": "Move the IExperimentsJson interface declaration to the new @rushstack/rush-schemas package. rush-lib re-exports the interface so existing imports remain stable.",
       "type": "none"
     }
   ],

common/changes/@rushstack/rush-schemas/rush-schemas-init_2026-04-19.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@rushstack/rush-schemas",
+      "comment": "Initial release. Pilots a dedicated home for zod-authored Rush configuration schemas (experiments, cobuild, repo-state, build-cache) that emits both runtime validators and *.schema.json artifacts.",
+      "type": "none"
+    }
+  ],
+  "packageName": "@rushstack/rush-schemas"
+}

common/config/rush/browser-approved-packages.json

@@ -46,6 +46,10 @@
       "name": "@rushstack/problem-matcher",
       "allowedCategories": [ "libraries" ]
     },
+    {
+      "name": "@rushstack/rush-schemas",
+      "allowedCategories": [ "libraries" ]
+    },
     {
       "name": "@rushstack/rush-themed-ui",
       "allowedCategories": [ "libraries" ]

common/config/subspaces/build-tests-subspace/pnpm-lock.yaml

@@ -1,6 +1,6 @@
 // DO NOT MODIFY THIS FILE MANUALLY BUT DO COMMIT IT. It is generated and used by Rush.
 {
-  "pnpmShrinkwrapHash": "4497f5b169c39c6d45b2f351e4484d4879102c71",
+  "pnpmShrinkwrapHash": "0d3fa0f98a02504bf1f36a2cea15fadf76e1f0b9",
   "preferredVersionsHash": "550b4cee0bef4e97db6c6aad726df5149d20e7d9",
-  "packageJsonInjectedDependenciesHash": "e7087a8987565f709ad2f841d39cd7078a57d8ad"
+  "packageJsonInjectedDependenciesHash": "c4fba4181349178d4b8b8aa1fee6cfe76e3639c0"
 }

common/config/subspaces/build-tests-subspace/repo-state.json

@@ -17,6 +17,7 @@ import { CredentialCache } from '@rushstack/credential-cache';
 import { HookMap } from 'tapable';
 import { ICredentialCacheEntry } from '@rushstack/credential-cache';
 import { ICredentialCacheOptions } from '@rushstack/credential-cache';
+import type { IExperimentsJson } from '@rushstack/rush-schemas/lib/experiments.zod';
 import { IFileDiffStatus } from '@rushstack/package-deps-hash';
 import { IPackageJson } from '@rushstack/node-core-library';
 import { IPrefixMatch } from '@rushstack/lookup-by-path';
@@ -466,28 +467,7 @@ export interface IExecutionResult {
     readonly status: OperationStatus;
 }
 
-// @beta
-export interface IExperimentsJson {
-    allowCobuildWithoutCache?: boolean;
-    buildCacheWithAllowWarningsInSuccessfulBuild?: boolean;
-    buildSkipWithAllowWarningsInSuccessfulBuild?: boolean;
-    cleanInstallAfterNpmrcChanges?: boolean;
-    enableSubpathScan?: boolean;
-    exemptDecoupledDependenciesBetweenSubspaces?: boolean;
-    forbidPhantomResolvableNodeModulesFolders?: boolean;
-    generateProjectImpactGraphDuringRushUpdate?: boolean;
-    noChmodFieldInTarHeaderNormalization?: boolean;
-    omitAppleDoubleFilesFromBuildCache?: boolean;
-    omitImportersFromPreventManualShrinkwrapChanges?: boolean;
-    printEventHooksOutputToConsole?: boolean;
-    rushAlerts?: boolean;
-    strictChangefileValidation?: boolean;
-    useIPCScriptsInWatchMode?: boolean;
-    usePnpmFrozenLockfileForRushInstall?: boolean;
-    usePnpmLockfileOnlyThenFrozenLockfileForRushUpdate?: boolean;
-    usePnpmPreferFrozenLockfileForRushUpdate?: boolean;
-    usePnpmSyncForInjectedDependencies?: boolean;
-}
+export { IExperimentsJson }
 
 // @beta
 export interface IFileSystemBuildCacheProviderOptions {

common/config/subspaces/default/pnpm-lock.yaml

@@ -97,23 +97,6 @@
               ]
             }
           }
-        },
-
-        // PILOT (heft-zod-schema-plugin): generate the experiments.json
-        // JSON Schema from the colocated experiments.zod.ts source file.
-        // Writes to temp/zod-schemas to avoid colliding with the legacy
-        // hand-authored schema in src/schemas/. The generated file is for
-        // review during the pilot; the runtime still uses the legacy schema.
-        "zod-schemas": {
-          "taskDependencies": ["typescript"],
-          "taskPlugin": {
-            "pluginPackage": "@rushstack/heft-zod-schema-plugin",
-            "pluginName": "zod-schema-plugin",
-            "options": {
-              "inputGlobs": ["lib-intermediate-commonjs/schemas/*.zod.js"],
-              "outputFolder": "temp/zod-schemas"
-            }
-          }
         }
       }
     }

common/reviews/api/rush-lib.api.md

@@ -74,6 +74,7 @@
     "pnpm-sync-lib": "0.3.3",
     "read-package-tree": "~5.1.5",
     "rxjs": "~6.6.7",
+    "@rushstack/rush-schemas": "workspace:*",
     "semver": "~7.7.4",
     "ssri": "~8.0.0",
     "strict-uri-encode": "~2.0.0",
@@ -84,7 +85,6 @@
   "devDependencies": {
     "@pnpm/lockfile.types-900": "npm:@pnpm/lockfile.types@~900.0.0",
     "@rushstack/heft-webpack5-plugin": "workspace:*",
-    "@rushstack/heft-zod-schema-plugin": "workspace:*",
     "@rushstack/heft": "workspace:*",
     "@rushstack/operation-graph": "workspace:*",
     "@rushstack/webpack-deep-imports-plugin": "workspace:*",
@@ -99,8 +99,7 @@
     "@types/webpack-env": "1.18.8",
     "eslint": "~9.37.0",
     "local-node-rig": "workspace:*",
-    "webpack": "~5.105.2",
-    "zod": "~4.3.6"
+    "webpack": "~5.105.2"
   },
   "publishOnlyDependencies": {
     "@rushstack/rush-amazon-s3-build-cache-plugin": "workspace:*",