The other half is discipline: a refactor is only safe if you scope it, branch it, and review it.

How Do You Scope a Refactor in Windsurf?

Open the target folder rather than the monorepo root when you can. Cascade indexes what it sees, and a tighter scope means faster responses and fewer stray edits.

State the invariant explicitly. “Change the return type to a Result, keep all existing callers compiling” gives the agent a constraint to check itself against.

What Does the Multi-File Diff Look Like?

Changes arrive as a reviewable batch across files. You can accept or reject per file, which matters when the agent gets four files right and one wrong. Rejecting one file does not throw away the rest.

How Cascade Differs From a Terminal Agent

Does It Run Tests and Fix Its Own Mistakes?

Yes. Cascade reads terminal output, so when a test fails it can inspect the error and adjust. That loop is where a lot of the time savings come from on refactors — you are not copying stack traces back into a chat box.

How Do You Verify the Result?

• Run your full test suite after accepting changes
• Grep for dynamic imports and reflection the agent cannot see
• Check the public API surface with a diff of exported symbols
• Review the commit as one unit, not file by file

What Are the Limits?

Credit consumption rises fast on wide refactors, since each agent action costs. A twenty-file change can eat a meaningful slice of a free month. Pro at roughly $15 a month raises the ceiling, and the agent still will not find call sites it cannot see statically.

Quick Summary

• Cascade remembers session edits, keeping multi-file changes consistent.
• Scope to a folder and state your invariant in the prompt.
• Accept or reject changes per file.
• It reads test output and iterates on failures.
• Check dynamic call sites yourself; credits drain on wide refactors.

The editor looks like VS Code because it is a fork of it. Your extensions and keybindings carry over, which removes the usual switching cost.

How Do You Install Windsurf and Import Your Setup?

• Download the installer for macOS, Windows, or Linux
• On first launch, choose to import settings from VS Code
• Sign in to activate the free tier
• Open a project folder and let the index build
• Open the Cascade panel from the sidebar

The import step copies extensions, themes, and shortcuts. Budget ten minutes for the first index on a large project.

What Is Cascade and Why Does It Feel Different?

Cascade tracks your recent edits, terminal output, and stated intent, so you rarely re-explain context. Ask it to fix a test that just failed and it already knows which test, because it watched the run.

That continuity is the product’s real selling point. Other agents start each conversation cold.

How Do You Use Cascade Day to Day?

Write a goal in the Cascade panel, not a command list. “Add pagination to the user list endpoint and update the client” works better than a numbered procedure, because the agent can inspect the code and choose its own path.

Review the proposed diff set before accepting. Multi-file changes land as one reviewable batch.

Is Windsurf Free?

There is a free tier with a monthly allowance of Cascade credits, enough for light use. Pro starts around $15 a month and raises the credit ceiling. Autocomplete runs on in-house models with low latency and does not consume the same quota.

What Does It Handle Poorly?

Very large monorepos stretch the index, and the agent occasionally edits a file you did not ask it to touch while pursuing the goal. Keep changes on a branch and read the diff. Also, because it is a fork, new VS Code features arrive late.

Quick Summary

• Windsurf is an AI-first editor with the Cascade agent built in.
• It imports VS Code settings, extensions and keybindings.
• Cascade keeps session context so you re-explain less.
• Free tier has a monthly Cascade credit allowance; Pro is about $15/mo.
• Branch your work and review multi-file diffs before accepting.