Reproduction

1. Add enableGlobalVirtualStore: true to pnpm-workspace.yaml
2. Run pnpm install — dependencies are installed (virtual store at <storeDir>/links)
3. Remove enableGlobalVirtualStore: true from pnpm-workspace.yaml
4. Run pnpm install — expected: deps reinstalled with local virtual store (node_modules/.pnpm) — actual: pnpm prints "Already up to date" and does nothing

Root cause

enableGlobalVirtualStore is missing from WORKSPACE_STATE_SETTING_KEYS in workspace/state/src/types.ts. The optimisticRepeatInstall fast path in installDeps calls checkDepsStatus before mutateModules. Since the workspace state file never recorded enableGlobalVirtualStore, the comparison finds nothing changed and short-circuits with upToDate: true — bypassing validateModules → checkCompatibility which would have detected the virtualStoreDir mismatch and triggered a purge + reinstall.

Fix

Add 'enableGlobalVirtualStore' to WORKSPACE_STATE_SETTING_KEYS in workspace/state/src/types.ts:

 export const WORKSPACE_STATE_SETTING_KEYS = [
+  'enableGlobalVirtualStore',
   'allowBuilds',
   'autoInstallPeers',

This ensures the workspace state detects the GVS toggle, checkDepsStatus returns upToDate: false, and the full mutateModules path runs (which includes the virtualStoreDir compatibility check and purge).

Written by an agent (opencode, glm-5.1).