fix(vscode): validate autocomplete model settings

packages/kilo-vscode/src/services/autocomplete/__tests__/settings.spec.ts

@@ -0,0 +1,66 @@
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+const state = new Map<string, unknown>()
+const update = vi.fn(async (key: string, value: unknown) => {
+  state.set(key, value)
+})
+
+vi.mock("vscode", () => ({
+  ConfigurationTarget: {
+    Global: 1,
+  },
+  workspace: {
+    getConfiguration: vi.fn(() => ({
+      get: vi.fn((key: string, fallback: unknown) => state.get(key) ?? fallback),
+      update,
+    })),
+    onDidChangeConfiguration: vi.fn(),
+  },
+}))
+
+describe("autocomplete settings", () => {
+  beforeEach(() => {
+    state.clear()
+    update.mockClear()
+  })
+
+  it("includes the configured model in loaded settings", async () => {
+    state.set("model", "inception/mercury-edit")
+    const { buildAutocompleteSettingsMessage } = await import("../settings")
+
+    expect(buildAutocompleteSettingsMessage().settings.model).toBe("inception/mercury-edit")
+  })
+
+  it("persists supported model updates", async () => {
+    const post = vi.fn()
+    const { routeAutocompleteMessage } = await import("../settings")
+
+    await routeAutocompleteMessage(
+      { type: "updateAutocompleteSetting", key: "model", value: "inception/mercury-edit" },
+      post,
+    )
+
+    expect(update).toHaveBeenCalledWith("model", "inception/mercury-edit", 1)
+    expect(post).toHaveBeenCalledWith(expect.objectContaining({ type: "autocompleteSettingsLoaded" }))
+  })
+
+  it("rejects unsupported model updates", async () => {
+    const post = vi.fn()
+    const { routeAutocompleteMessage } = await import("../settings")
+
+    await routeAutocompleteMessage({ type: "updateAutocompleteSetting", key: "model", value: "other/model" }, post)
+
+    expect(update).not.toHaveBeenCalled()
+    expect(post).not.toHaveBeenCalled()
+  })
+
+  it("rejects non-boolean toggle updates", async () => {
+    const post = vi.fn()
+    const { routeAutocompleteMessage } = await import("../settings")
+
+    await routeAutocompleteMessage({ type: "updateAutocompleteSetting", key: "enableAutoTrigger", value: "true" }, post)
+
+    expect(update).not.toHaveBeenCalled()
+    expect(post).not.toHaveBeenCalled()
+  })
+})

packages/kilo-vscode/src/services/autocomplete/settings.ts

@@ -1,5 +1,5 @@
 import * as vscode from "vscode"
-import { DEFAULT_AUTOCOMPLETE_MODEL } from "../../shared/autocomplete-models"
+import { AUTOCOMPLETE_MODELS, DEFAULT_AUTOCOMPLETE_MODEL } from "../../shared/autocomplete-models"
 
 const keys = new Set(["enableAutoTrigger", "enableSmartInlineTaskKeybinding", "enableChatAutocomplete", "model"])
 
@@ -52,6 +52,7 @@ export function watchAutocompleteConfig(post: Post): vscode.Disposable {
 async function update(key: unknown, value: unknown) {
   if (typeof key !== "string") return false
   if (!keys.has(key)) return false
+  if (!valid(key, value)) return false
 
   await vscode.workspace
     .getConfiguration("kilo-code.new.autocomplete")
@@ -59,3 +60,12 @@ async function update(key: unknown, value: unknown) {
 
   return true
 }
+
+function valid(key: string, value: unknown) {
+  if (key === "model") {
+    if (typeof value !== "string") return false
+    return AUTOCOMPLETE_MODELS.some((m) => m.id === value)
+  }
+
+  return typeof value === "boolean"
+}