init claude-code

migrations/migrateLegacyOpusToCurrent.ts

@@ -0,0 +1,57 @@
+import {
+  type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+  logEvent,
+} from '../services/analytics/index.js'
+import { saveGlobalConfig } from '../utils/config.js'
+import { isLegacyModelRemapEnabled } from '../utils/model/model.js'
+import { getAPIProvider } from '../utils/model/providers.js'
+import {
+  getSettingsForSource,
+  updateSettingsForSource,
+} from '../utils/settings/settings.js'
+
+/**
+ * Migrate first-party users off explicit Opus 4.0/4.1 model strings.
+ *
+ * The 'opus' alias already resolves to Opus 4.6 for 1P, so anyone still
+ * on an explicit 4.0/4.1 string pinned it in settings before 4.5 launched.
+ * parseUserSpecifiedModel now silently remaps these at runtime anyway —
+ * this migration cleans up the settings file so /model shows the right
+ * thing, and sets a timestamp so the REPL can show a one-time notification.
+ *
+ * Only touches userSettings. Legacy strings in project/local/policy settings
+ * are left alone (we can't/shouldn't rewrite those) and are still remapped at
+ * runtime by parseUserSpecifiedModel. Reading and writing the same source
+ * keeps this idempotent without a completion flag, and avoids silently
+ * promoting 'opus' to the global default for users who only pinned it in one
+ * project.
+ */
+export function migrateLegacyOpusToCurrent(): void {
+  if (getAPIProvider() !== 'firstParty') {
+    return
+  }
+
+  if (!isLegacyModelRemapEnabled()) {
+    return
+  }
+
+  const model = getSettingsForSource('userSettings')?.model
+  if (
+    model !== 'claude-opus-4-20250514' &&
+    model !== 'claude-opus-4-1-20250805' &&
+    model !== 'claude-opus-4-0' &&
+    model !== 'claude-opus-4-1'
+  ) {
+    return
+  }
+
+  updateSettingsForSource('userSettings', { model: 'opus' })
+  saveGlobalConfig(current => ({
+    ...current,
+    legacyOpusMigrationTimestamp: Date.now(),
+  }))
+  logEvent('tengu_legacy_opus_migration', {
+    from_model:
+      model as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
+  })
+}