fix: conditionally include codebase_search in native tools based on feature status

src/core/prompts/tools/native-tools/__tests__/index.spec.ts

@@ -0,0 +1,61 @@
+import { describe, it, expect } from "vitest"
+import { getNativeTools } from "../index"
+
+// Helper to extract tool names
+function getToolNames(tools: ReturnType<typeof getNativeTools>): string[] {
+	return tools.map((t) => ("function" in t ? t.function.name : ""))
+}
+
+// Helper to find a tool by name
+function findTool(tools: ReturnType<typeof getNativeTools>, name: string) {
+	return tools.find((t) => "function" in t && t.function.name === name)
+}
+
+describe("getNativeTools", () => {
+	it("should include codebase_search when codebaseSearchEnabled is true", () => {
+		const tools = getNativeTools(true, true)
+		const toolNames = getToolNames(tools)
+		expect(toolNames).toContain("codebase_search")
+	})
+
+	it("should exclude codebase_search when codebaseSearchEnabled is false", () => {
+		const tools = getNativeTools(true, false)
+		const toolNames = getToolNames(tools)
+		expect(toolNames).not.toContain("codebase_search")
+	})
+
+	it("should include codebase_search by default (codebaseSearchEnabled defaults to true)", () => {
+		const tools = getNativeTools(true)
+		const toolNames = getToolNames(tools)
+		expect(toolNames).toContain("codebase_search")
+	})
+
+	it("should include read_file with line_ranges when partialReadsEnabled is true", () => {
+		const tools = getNativeTools(true, true)
+		const readFileTool = findTool(tools, "read_file")
+		expect(readFileTool).toBeDefined()
+		if (readFileTool && "function" in readFileTool) {
+			expect(readFileTool.function.description).toContain("line_ranges")
+		}
+	})
+
+	it("should include read_file without line_ranges when partialReadsEnabled is false", () => {
+		const tools = getNativeTools(false, true)
+		const readFileTool = findTool(tools, "read_file")
+		expect(readFileTool).toBeDefined()
+		if (readFileTool && "function" in readFileTool) {
+			expect(readFileTool.function.description).not.toContain("line_ranges")
+		}
+	})
+
+	it("should always include core tools regardless of settings", () => {
+		const tools = getNativeTools(true, true)
+		const toolNames = getToolNames(tools)
+		expect(toolNames).toContain("read_file")
+		expect(toolNames).toContain("write_to_file")
+		expect(toolNames).toContain("execute_command")
+		expect(toolNames).toContain("apply_diff")
+		expect(toolNames).toContain("ask_followup_question")
+		expect(toolNames).toContain("attempt_completion")
+	})
+})

src/core/prompts/tools/native-tools/index.ts

@@ -26,16 +26,19 @@ export { convertOpenAIToolToAnthropic, convertOpenAIToolsToAnthropic } from "./c
  * Get native tools array, optionally customizing based on settings.
  *
  * @param partialReadsEnabled - Whether to include line_ranges support in read_file tool (default: true)
+ * @param codebaseSearchEnabled - Whether to include codebase_search tool (default: true)
  * @returns Array of native tool definitions
  */
-export function getNativeTools(partialReadsEnabled: boolean = true): OpenAI.Chat.ChatCompletionTool[] {
-	return [
+export function getNativeTools(
+	partialReadsEnabled: boolean = true,
+	codebaseSearchEnabled: boolean = true,
+): OpenAI.Chat.ChatCompletionTool[] {
+	const tools: OpenAI.Chat.ChatCompletionTool[] = [
 		accessMcpResource,
 		apply_diff_single_file,
 		askFollowupQuestion,
 		attemptCompletion,
 		browserAction,
-		codebaseSearch,
 		executeCommand,
 		fetchInstructions,
 		generateImage,
@@ -49,7 +52,13 @@ export function getNativeTools(partialReadsEnabled: boolean = true): OpenAI.Chat
 		switchMode,
 		updateTodoList,
 		writeToFile,
-	] satisfies OpenAI.Chat.ChatCompletionTool[]
+	]
+
+	if (codebaseSearchEnabled) {
+		tools.push(codebaseSearch)
+	}
+
+	return tools
 }
 
 // Backward compatibility: export default tools with line ranges enabled

src/core/task/build-tools.ts

@@ -41,8 +41,15 @@ export async function buildNativeToolsArray(options: BuildToolsOptions): Promise
 	// Determine if partial reads are enabled based on maxReadFileLine setting
 	const partialReadsEnabled = maxReadFileLine !== -1
 
+	// Determine if codebase_search should be included
+	const codebaseSearchEnabled = !!(
+		codeIndexManager?.isFeatureEnabled &&
+		codeIndexManager?.isFeatureConfigured &&
+		codeIndexManager?.isInitialized
+	)
+
 	// Build native tools with dynamic read_file tool based on partialReadsEnabled
-	const nativeTools = getNativeTools(partialReadsEnabled)
+	const nativeTools = getNativeTools(partialReadsEnabled, codebaseSearchEnabled)
 
 	// Filter native tools based on mode restrictions
 	const filteredNativeTools = filterNativeToolsForMode(