# Cursor Task Management Versus Claude Code ExitPlanMode: Planning Architecture Compared > Compare Cursor task management and Claude Code ExitPlanMode. Discover Cursor's todo list workflow vs Claude's strict mode transitions for AI planning and execution. - Repository: [Lucas Valbuena/system-prompts-and-models-of-ai-tools](https://github.com/x1xhlol/system-prompts-and-models-of-ai-tools) - Tags: architecture - Published: 2026-02-25 --- **Cursor implements planning as a continuous todo list workflow via the `todo_write` tool, while Claude Code enforces a strict mode transition requiring the explicit `exit_plan_mode` tool before any code execution can begin.** The `x1xhlol/system-prompts-and-models-of-ai-tools` repository reveals fundamentally different philosophies for agentic task planning in AI coding assistants. While both Cursor and Claude Code separate planning from implementation, Cursor treats planning as a flexible, user-visible artifact, whereas Claude Code relies on an internal state machine with a mandatory hand-off mechanism. These architectural choices directly impact how each assistant handles multi-step coding workflows. ## How Cursor Structures Task Management Cursor embeds planning directly into the conversation through a persistent todo list managed via the **`todo_write`** tool. This system operates as a first-class artifact that the assistant continuously updates throughout the interaction. ### The Todo List Schema According to `Cursor Prompts/Agent Tools v1.0.json`, the `todo_write` tool accepts a structured JSON payload that supports incremental updates through the `merge` parameter: ```json { "merge": false, "todos": [ { "id": "t1", "content": "Search the repository for all usages of `fetch_pull_request`", "status": "pending", "dependencies": [] }, { "id": "t2", "content": "Update the CLI to use the new `fetch_pull_request` signature", "status": "pending", "dependencies": ["t1"] }, { "id": "t3", "content": "Run unit tests and fix any failures", "status": "pending", "dependencies": ["t2"] } ] } ``` The assistant progresses through tasks by calling `todo_write` again with `merge: true` to update statuses without rewriting the entire list: ```json { "merge": true, "todos": [ { "id": "t1", "status": "completed" }, { "id": "t2", "status": "in_progress" } ] } ``` ### Autonomous State Transitions As documented in `Cursor Prompts/Agent Prompt v1.2.txt` and `Agent Prompt 2.0.txt`, the assistant independently manages the transition between **pending**, **in_progress**, and **completed** states. No additional permission or tool calls are required to move from planning to execution; the assistant simply proceeds to the next relevant tool (e.g., `read_file`, `edit_file`) based on the current todo state. ## How Claude Code ExitPlanMode Works Claude Code implements a rigid architectural boundary between planning and execution that requires an explicit system-level transition. ### The Exit Plan Mode Tool Defined in `Claude Code/Tools.json` at approximately line 177, the **`exit_plan_mode`** tool serves as a mandatory checkpoint: ```json { "name": "exit_plan_mode", "description": "Use this tool when you are in plan mode and have finished presenting your plan and are ready to code. This will prompt the user to exit plan mode. IMPORTANT: Only use this tool when the task requires planning the implementation steps of a task that requires writing code." } ``` ### Mandatory Mode Transition Unlike Cursor's fluid workflow, Claude Code requires the model to emit the exit tool call before invoking any code-related tools. The `Claude Code 2.0.txt` documentation explicitly prohibits calling `exit_plan_mode` for pure research or file-searching tasks. Typical usage follows this strict sequence: ``` Plan: 1. Read the existing `fetch_pull_request` implementation. 2. Add support for pull-request comments. 3. Update the README. ``` If the model forgets to call the tool, it constitutes a planning error; the conversation remains in plan mode and the model must immediately correct itself before any code actions can execute. ## Key Architectural Distinctions ### Visibility and User Transparency - **Cursor** exposes the todo list as a visible artifact that users can monitor throughout the conversation, providing real-time transparency into which tasks are pending, active, or completed. - **Claude Code** treats the mode transition as an internal system operation; users see only the plan text and a subsequent "Now I'll start coding" message, with the actual state change occurring implicitly through the tool call. ### Scope of Application - **Cursor's** `todo_write` applies to **any multi-step task**, including research, refactoring, UI design, and testing workflows. - **Claude Code's** `exit_plan_mode` is **strictly limited to code implementation tasks**. The documentation explicitly forbids its use for research or understanding existing code without accompanying implementation work. ### Error Handling and Flexibility - **Cursor** allows **self-correction** through the `todo_write` tool. If a task is missed or needs reordering, the assistant can dynamically adjust the list using `merge: true`. - **Claude Code** enforces a **hard constraint**: failure to call `exit_plan_mode` completely blocks code execution, requiring immediate correction before the workflow can proceed. ## Summary - **Cursor task management** relies on a continuous `todo_write` workflow with visible state tracking through `pending`, `in_progress`, and `completed` statuses stored in `Cursor Prompts/Agent Tools v1.0.json`. - **Claude Code ExitPlanMode** requires a mandatory `exit_plan_mode` tool call defined in `Claude Code/Tools.json` that acts as a gateway between planning and code execution. - Cursor supports flexible multi-step workflows including research and design, while Claude Code restricts `exit_plan_mode` to implementation tasks only according to `Claude Code 2.0.txt`. - Cursor todo lists are first-class user-visible artifacts that persist throughout the conversation; Claude Code mode transitions are internal system operations with strict guardrails. ## Frequently Asked Questions ### What happens if Claude Code forgets to call exit_plan_mode? If the model fails to invoke the `exit_plan_mode` tool after presenting a plan, it cannot proceed to code-related tools like `read_file` or `edit_file`. According to the source code in `Claude Code/Tools.json`, this constitutes a planning error, and the model must immediately correct itself by calling the tool before any code actions can execute. ### Can Cursor's todo_write tool handle task dependencies? Yes. As shown in `Cursor Prompts/Agent Tools v1.0.json`, each todo item includes a `dependencies` array that allows the assistant to specify which tasks must complete before others begin. The assistant manages these dependencies automatically when updating task statuses through subsequent `todo_write` calls with `merge: true`. ### Is Claude Code's plan mode visible to users? No. While users see the plan text and a message indicating coding will begin, the actual mode transition occurs through the internal `exit_plan_mode` tool call. Unlike Cursor's persistent todo list, which serves as a first-class artifact visible throughout the conversation, Claude Code's planning state is an internal mechanism defined in `Claude Code 2.0.txt`. ### Which approach is more flexible for non-coding tasks? **Cursor's approach** is significantly more flexible. The `Agent Prompt 2.0.txt` explicitly supports using `todo_write` for research, refactoring, UI design, and testing. In contrast, Claude Code's documentation explicitly prohibits using `exit_plan_mode` for pure research or file-searching without implementation, limiting it strictly to code-writing tasks according to the tool definition in `Claude Code/Tools.json`.