Why Cursor Skips Planning Mode and How a Strict Plan-Execute Loop Fixes It
Why Cursor Skips Planning Mode and How a Strict Plan-Execute Loop Fixes It
You ask Cursor to refactor a module. Instead of showing you what it plans to change, it immediately starts editing files. Five minutes later, you are staring at a diff across twelve files, trying to figure out if any of this is what you actually wanted.
This is the default behavior in most AI coding tools. The agent is optimized for speed, not for collaboration. It assumes that executing fast is better than planning first. For simple tasks, that works. For anything involving architectural decisions, it is a recipe for wasted time and reverted commits.
The Plan-Then-Execute Pattern
The fix is a strict loop where the agent cannot touch files until you approve the plan. The workflow looks like this:
- You describe the task
- The agent analyzes the codebase and produces a plan - which files change, what changes, and why
- You review the plan and approve, modify, or reject it
- Only after approval does the agent execute
This is not a new idea. It is how good human engineers work - think before you type. But AI tools skip this step because showing a plan feels slower than just doing the work.
Why It Matters
Without planning, the agent anchors on its first interpretation of your request. If that interpretation is wrong, every file it touches compounds the error. With planning, you catch misunderstandings before they become a twenty-file diff you have to manually unwind.
The planning step also forces the agent to reason about dependencies and side effects. "Change the API response format" sounds simple until you realize it breaks three downstream consumers.
Standalone Desktop Agents
This is why some developers have switched to standalone desktop agents with explicit plan-approve-execute loops. The agent proposes, you review, it executes. No surprises, no runaway edits, no archaeology through git blame to figure out what went wrong.
The tradeoff is speed. But the time you save by not reverting bad changes more than makes up for the time spent reviewing plans.
- Pair Programming AI Spec First Approve Plan
- Agent Execution Harder Than Planning
- Architecture Problem Not Claude Code Problem
Fazm is an open source macOS AI agent. Open source on GitHub.