Can I use plan mode and auto mode at the same time?

Yes, and it's a great combination. Plan mode makes Claude show you the plan before acting. Auto mode means the safe steps in that plan run without permission prompts. You approve the strategy, then execution flows smoothly.

Does plan mode make Claude slower?

It adds one round of review before work starts. For a quick one-liner, that's overhead. For a multi-file change, it's the cheapest insurance you'll ever buy — catching a wrong approach before it runs is always faster than undoing it.

What counts as 'safe' in auto mode?

A built-in classifier decides. Reading files, running tests, checking git status — safe. Force-pushing, deleting files, running unknown scripts — those still pause for approval. You can also set hard deny rules for anything that should never auto-approve.

Plan mode vs Auto mode in Claude Code

Plan mode and auto mode sound like they might be opposites, but they answer completely different questions:

Plan mode: Should Claude think first or act immediately?
Auto mode: Should Claude ask permission for safe actions or just do them?

The one-line version

Plan mode = “Show me your plan before you touch anything.”
Auto mode = “Do safe things without asking; pause on risky things.”

Plan mode — think before you act

When you turn on plan mode, Claude lays out a numbered plan and stops. Nothing changes until you review it and say go.

Add a dark-mode toggle to the settings page — plan it first, don't change anything yet.

Claude responds with something like:

Add a theme toggle component
Wire it to a context provider
Update the settings page layout
Add CSS variables for dark theme

You read it, push back (“step 2 is overkill, just use localStorage”), and then it executes.

Use plan mode when: the task is bigger than a one-line fix and you want to approve the approach before work starts.

Auto mode — act without nagging

Auto mode is about permissions. Normally, Claude pauses before every action: “Can I read this file? Can I run this command?” Auto mode lets the safe ones through automatically while still stopping on risky ones.

/auto

Now git status, reading files, running tests — they flow without interruption. But git push --force or deleting files still pause for your approval.

Use auto mode when: you trust Claude on the routine actions and don’t want to click “approve” fifty times during a long task.

Side by side

	Plan mode	Auto mode
Question it answers	”What’s the approach?"	"Do I need to approve each step?”
What it controls	Strategy (plan vs execute)	Permissions (ask vs auto-approve)
When to use	Big or risky tasks	Long tasks with many safe actions
The win	Catch a wrong approach early	Stop babysitting approvals
The risk if skipped	Claude takes a bad path	You approve spam or miss a risky action

Better together

The best workflow for a significant task:

Plan mode on: “Here’s what I want. Plan it first.”
Review the plan: Push back, adjust, approve.
Auto mode on: “Go execute. Don’t ask me about the safe stuff.”

You get strategic oversight (plan mode) without tactical friction (auto mode). The big decisions are yours; the routine execution flows.

When to skip each

Skip plan mode for quick, obvious tasks: “rename this variable,” “fix this typo.” Adding a planning step to a one-liner is pure overhead.
Skip auto mode when you’re doing something sensitive and want to approve every step — a production deploy script, a database migration, anything where “safe by default” isn’t safe enough for your situation.