fix: update task tracker storage location in system prompt (#24034)

evals/tracker.eval.ts

@@ -113,4 +113,21 @@ describe('tracker_mode', () => {
       assertModelHasOutput(result);
     },
   });
+
+  evalTest('USUALLY_PASSES', {
+    name: 'should correctly identify the task tracker storage location from the system prompt',
+    params: {
+      settings: { experimental: { taskTracker: true } },
+    },
+    prompt:
+      'Where is my task tracker storage located? Please provide the absolute path in your response.',
+    assert: async (rig, result) => {
+      // The rig sets GEMINI_CLI_HOME to rig.homeDir
+      const homeDir = rig.homeDir!;
+      // The response should contain the dynamic path which includes the home directory
+      // and follows the .gemini/tmp/.../tracker structure.
+      expect(result).toContain(homeDir);
+      expect(result).toMatch(/\.gemini\/tmp\/.*\/tracker/);
+    },
+  });
 });

packages/core/src/core/__snapshots__/prompts.test.ts.snap

@@ -2899,7 +2899,7 @@ Use 'read_file' to understand context and validate any assumptions you may have.
 6. **Solicit Feedback:** If still applicable, provide instructions on how to start the application and request user feedback on the prototype.
 
 # TASK MANAGEMENT PROTOCOL
-You are operating with a persistent file-based task tracking system located at \`.tracker/tasks/\`. You must adhere to the following rules:
+You are operating with a persistent file-based task tracking system located at \`/mock/.gemini/tmp/session/tracker\`. You must adhere to the following rules:
 
 1.  **NO IN-MEMORY LISTS**: Do not maintain a mental list of tasks or write markdown checkboxes in the chat. Use the provided tools (\`tracker_create_task\`, \`tracker_list_tasks\`, \`tracker_update_task\`) for all state management.
 2.  **IMMEDIATE DECOMPOSITION**: Upon receiving a task, evaluate its functional complexity and scope. If the request involves more than a single atomic modification, or necessitates research before execution, you MUST immediately decompose it into discrete entries using \`tracker_create_task\`.
@@ -3079,7 +3079,7 @@ Operate using a **Research -> Strategy -> Execution** lifecycle. For the Executi
 5. **Solicit Feedback:** Provide instructions on how to start the application and request user feedback on the prototype.
 
 # TASK MANAGEMENT PROTOCOL
-You are operating with a persistent file-based task tracking system located at \`.tracker/tasks/\`. You must adhere to the following rules:
+You are operating with a persistent file-based task tracking system located at \`/mock/.gemini/tmp/session/tracker\`. You must adhere to the following rules:
 
 1.  **NO IN-MEMORY LISTS**: Do not maintain a mental list of tasks or write markdown checkboxes in the chat. Use the provided tools (\`tracker_create_task\`, \`tracker_list_tasks\`, \`tracker_update_task\`) for all state management.
 2.  **IMMEDIATE DECOMPOSITION**: Upon receiving a task, evaluate its functional complexity and scope. If the request involves more than a single atomic modification, or necessitates research before execution, you MUST immediately decompose it into discrete entries using \`tracker_create_task\`.

packages/core/src/core/prompts.test.ts

@@ -93,6 +93,9 @@ describe('Core System Prompt (prompts.ts)', () => {
       storage: {
         getProjectTempDir: vi.fn().mockReturnValue('/tmp/project-temp'),
         getPlansDir: vi.fn().mockReturnValue('/tmp/project-temp/plans'),
+        getProjectTempTrackerDir: vi
+          .fn()
+          .mockReturnValue('/mock/.gemini/tmp/session/tracker'),
       },
       isInteractive: vi.fn().mockReturnValue(true),
       isInteractiveShellEnabled: vi.fn().mockReturnValue(true),

packages/core/src/prompts/promptProvider.test.ts

@@ -64,6 +64,9 @@ describe('PromptProvider', () => {
       storage: {
         getProjectTempDir: vi.fn().mockReturnValue('/tmp/project-temp'),
         getPlansDir: vi.fn().mockReturnValue('/tmp/project-temp/plans'),
+        getProjectTempTrackerDir: vi
+          .fn()
+          .mockReturnValue('/tmp/project-temp/tracker'),
       },
       isInteractive: vi.fn().mockReturnValue(true),
       isInteractiveShellEnabled: vi.fn().mockReturnValue(true),
@@ -104,6 +107,36 @@ describe('PromptProvider', () => {
     );
   });
 
+  it('should include the task tracker storage location in the system prompt', () => {
+    vi.mocked(mockConfig.isTrackerEnabled).mockReturnValue(true);
+    const mockTrackerDir = '/mock/tracker/path';
+    vi.mocked(mockConfig.storage.getProjectTempTrackerDir).mockReturnValue(
+      mockTrackerDir,
+    );
+
+    const provider = new PromptProvider();
+    const prompt = provider.getCoreSystemPrompt(mockConfig);
+
+    expect(prompt).toContain('# TASK MANAGEMENT PROTOCOL');
+    expect(prompt).toContain(`located at \`${mockTrackerDir}\``);
+  });
+
+  it('should sanitize the task tracker storage location in the system prompt', () => {
+    vi.mocked(mockConfig.isTrackerEnabled).mockReturnValue(true);
+    const mockTrackerDir = '/mock/tracker/path\nwith-newline]and-bracket';
+    vi.mocked(mockConfig.storage.getProjectTempTrackerDir).mockReturnValue(
+      mockTrackerDir,
+    );
+
+    const provider = new PromptProvider();
+    const prompt = provider.getCoreSystemPrompt(mockConfig);
+
+    expect(prompt).toContain('# TASK MANAGEMENT PROTOCOL');
+    expect(prompt).toContain(
+      'located at `/mock/tracker/path with-newlineand-bracket`',
+    );
+  });
+
   it('should handle multiple context filenames in user memory section', () => {
     vi.mocked(getAllGeminiMdFilenames).mockReturnValue([
       DEFAULT_CONTEXT_FILENAME,

packages/core/src/prompts/promptProvider.ts

@@ -72,6 +72,16 @@ export class PromptProvider {
     const activeSnippets = isModernModel ? snippets : legacySnippets;
     const contextFilenames = getAllGeminiMdFilenames();
 
+    let trackerDir = context.config.isTrackerEnabled()
+      ? context.config.storage.getProjectTempTrackerDir()
+      : undefined;
+
+    if (trackerDir) {
+      // Sanitize path to prevent prompt injection
+      trackerDir = trackerDir.replace(/\n/g, ' ').replace(/\]/g, '');
+    }
+
+    // --- Context Gathering ---
     let planModeToolsList = '';
     if (isPlanMode) {
       const allTools = context.toolRegistry.getAllTools();
@@ -149,7 +159,7 @@ export class PromptProvider {
             })),
           skills.length > 0,
         ),
-        taskTracker: context.config.isTrackerEnabled(),
+        taskTracker: trackerDir,
         hookContext: isSectionEnabled('hookContext') || undefined,
         primaryWorkflows: this.withSection(
           'primaryWorkflows',
@@ -167,7 +177,7 @@ export class PromptProvider {
             approvedPlan: approvedPlanPath
               ? { path: approvedPlanPath }
               : undefined,
-            taskTracker: context.config.isTrackerEnabled(),
+            taskTracker: trackerDir,
             topicUpdateNarration:
               context.config.isTopicUpdateNarrationEnabled(),
           }),
@@ -180,7 +190,6 @@ export class PromptProvider {
             planModeToolsList,
             plansDir: context.config.storage.getPlansDir(),
             approvedPlanPath: context.config.getApprovedPlanPath(),
-            taskTracker: context.config.isTrackerEnabled(),
           }),
           isPlanMode,
         ),

packages/core/src/prompts/snippets.legacy.ts

@@ -37,7 +37,7 @@ export interface SystemPromptOptions {
   hookContext?: boolean;
   primaryWorkflows?: PrimaryWorkflowsOptions;
   planningWorkflow?: PlanningWorkflowOptions;
-  taskTracker?: boolean;
+  taskTracker?: string;
   operationalGuidelines?: OperationalGuidelinesOptions;
   sandbox?: SandboxOptions;
   interactiveYoloMode?: boolean;
@@ -63,7 +63,7 @@ export interface PrimaryWorkflowsOptions {
   enableWriteTodosTool: boolean;
   enableEnterPlanModeTool: boolean;
   approvedPlan?: { path: string };
-  taskTracker?: boolean;
+  taskTracker?: string;
   topicUpdateNarration?: boolean;
 }
 
@@ -95,7 +95,6 @@ export interface PlanningWorkflowOptions {
   planModeToolsList: string;
   plansDir: string;
   approvedPlanPath?: string;
-  taskTracker?: boolean;
 }
 
 export interface AgentSkillOptions {
@@ -132,7 +131,7 @@ ${
     : renderPrimaryWorkflows(options.primaryWorkflows)
 }
 
-${options.taskTracker ? renderTaskTracker() : ''}
+${options.taskTracker ? renderTaskTracker(options.taskTracker) : ''}
 
 ${renderOperationalGuidelines(options.operationalGuidelines)}
 
@@ -491,10 +490,10 @@ An approved plan is available for this task.
 `;
 }
 
-export function renderTaskTracker(): string {
+export function renderTaskTracker(trackerDir: string): string {
   return `
 # TASK MANAGEMENT PROTOCOL
-You are operating with a persistent file-based task tracking system located at \`.tracker/tasks/\`. You must adhere to the following rules:
+You are operating with a persistent file-based task tracking system located at \`${trackerDir}\`. You must adhere to the following rules:
 
 1.  **NO IN-MEMORY LISTS**: Do not maintain a mental list of tasks or write markdown checkboxes in the chat. Use the provided tools (\`${TRACKER_CREATE_TASK_TOOL_NAME}\`, \`${TRACKER_LIST_TASKS_TOOL_NAME}\`, \`${TRACKER_UPDATE_TASK_TOOL_NAME}\`) for all state management.
 2.  **IMMEDIATE DECOMPOSITION**: Upon receiving a task, evaluate its functional complexity and scope. If the request involves more than a single atomic modification, or necessitates research before execution, you MUST immediately decompose it into discrete entries using \`${TRACKER_CREATE_TASK_TOOL_NAME}\`.

packages/core/src/prompts/snippets.ts

@@ -47,7 +47,7 @@ export interface SystemPromptOptions {
   hookContext?: boolean;
   primaryWorkflows?: PrimaryWorkflowsOptions;
   planningWorkflow?: PlanningWorkflowOptions;
-  taskTracker?: boolean;
+  taskTracker?: string;
   operationalGuidelines?: OperationalGuidelinesOptions;
   sandbox?: SandboxOptions;
   interactiveYoloMode?: boolean;
@@ -74,7 +74,7 @@ export interface PrimaryWorkflowsOptions {
   enableGrep: boolean;
   enableGlob: boolean;
   approvedPlan?: { path: string };
-  taskTracker?: boolean;
+  taskTracker?: string;
   topicUpdateNarration: boolean;
 }
 
@@ -101,7 +101,6 @@ export interface PlanningWorkflowOptions {
   planModeToolsList: string;
   plansDir: string;
   approvedPlanPath?: string;
-  taskTracker?: boolean;
 }
 
 export interface AgentSkillOptions {
@@ -139,7 +138,7 @@ ${
     : renderPrimaryWorkflows(options.primaryWorkflows)
 }
 
-${options.taskTracker ? renderTaskTracker() : ''}
+${options.taskTracker ? renderTaskTracker(options.taskTracker) : ''}
 
 ${renderOperationalGuidelines(options.operationalGuidelines)}
 
@@ -537,14 +536,14 @@ ${trimmed}
   return `\n---\n\n<loaded_context>\n${sections.join('\n')}\n</loaded_context>`;
 }
 
-export function renderTaskTracker(): string {
+export function renderTaskTracker(trackerDir: string): string {
   const trackerCreate = formatToolName(TRACKER_CREATE_TASK_TOOL_NAME);
   const trackerList = formatToolName(TRACKER_LIST_TASKS_TOOL_NAME);
   const trackerUpdate = formatToolName(TRACKER_UPDATE_TASK_TOOL_NAME);
 
   return `
 # TASK MANAGEMENT PROTOCOL
-You are operating with a persistent file-based task tracking system located at \`.tracker/tasks/\`. You must adhere to the following rules:
+You are operating with a persistent file-based task tracking system located at \`${trackerDir}\`. You must adhere to the following rules:
 
 1.  **NO IN-MEMORY LISTS**: Do not maintain a mental list of tasks or write markdown checkboxes in the chat. Use the provided tools (${trackerCreate}, ${trackerList}, ${trackerUpdate}) for all state management.
 2.  **IMMEDIATE DECOMPOSITION**: Upon receiving a task, evaluate its functional complexity and scope. If the request involves more than a single atomic modification, or necessitates research before execution, you MUST immediately decompose it into discrete entries using ${trackerCreate}.