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TaskListTool: List Tasks

8/2/2026, 4:06:40 PM · Source

AI-translated on 8/2/2026, 4:07:22 PM · by Qwen3.6 35B (fast, default)

#claude-code#best-practices#workflow-automation#task-management

Learn how to use TaskListTool in Claude Code to get a global task view, including task filtering and managing blocking items.

It Provides a Global Task View for the Main Thread

TaskListTool's purpose is to allow the model to regain visibility into "what tasks are currently active, who is blocking whom, and what remains incomplete."
In multi-step workflows, it serves as the overview panel for the task system.

Key Source Code

const allTasks = (await listTasks(taskListId)).filter(
  t => !t.metadata?._internal,
)

It also filters out resolved blockers, making the output more aligned with the "current actionable state."

Call Chain

Model needs to view global tasks > TaskListTool > read all tasks > filter internal/resolved blockers > return overview

Summary

TaskListTool gives Claude Code the ability to "step back and see the big picture" within complex task flows.

Learning map

Claude Code Task Management Learning Map

Phase 1: Foundational Knowledge

  • Understand Claude Code's task management mechanisms
  • Grasp the core functionality and value of TaskListTool
  • Distinguish between internal and global task states

Phase 2: Tool Invocation

  • Learn how to call TaskListTool to retrieve the task list
  • Understand the parameter descriptions for the listTasks API
  • Comprehend the function of the metadata filtering mechanism (_internal)

Phase 3: Blocker Management

  • Learn how to identify which tasks are blocked
  • Understand the filtering logic for resolved blockers
  • Adjust execution priorities based on task status

Phase 4: Comprehensive Application

  • Coordinate tasks across multi-step workflows using a global view
  • Integrate with other tools to automate workflows
  • Monitor completion progress for complex task flows

Get hands-on — step by step

  1. Open Claude Code and ensure the project is active
  2. Enter a command to view the current task list (e.g., use /tasks or a similar built-in directive)
  3. Review the returned task overview: identify which tasks are completed, in progress, and blocked
  4. Pay attention to tasks marked with _internal—these are for internal use and can be ignored
  5. Check "resolved blocks": if a task is labeled as "waiting on dependency but dependency resolved," it means that block may have automatically cleared
  6. Determine the current course of action based on the overall view: prioritize core tasks that are not blocked
  7. After completing key tasks, call TaskListTool again to refresh the list and verify status updates
  8. Repeat steps 3-7 throughout the multi-step workflow to continuously track progress

Top 3 sources

  1. 1
    Claude Code Official Documentation

    Claude Code 官方文档，涵盖工具使用和任务管理的完整指南。

    https://docs.anthropic.com/en/docs/claude-code/overview

  2. 2
    GitHub - Claude Code Repository

    Anthropics 官方 GitHub 仓库，提供 Claude Code 的示例代码和最佳实践。

    https://github.com/anthropics/anthropic-quickstarts

  3. 3
    Claude Code Blog - AI Programming Tools

    Anthropics 官方博客，介绍 Claude Code 的最新功能与更新动态。

    https://www.anthropic.com/news/claude-code

Links are AI-suggested — worth a quick sanity check before diving in.