What does a well-written scope of work protect me against?

It can also protect you from non-payment by clearly stating what's included in your services and what isn't. Make sure to get client acknowledgment.

A good scope of work outlines deliverables, timelines, and payment terms. It protects you against scope creep and helps manage client expectations.

A solid SOW keeps you from getting burned. It locks in exactly what's being built, for how much, when it's done, and the exact form of delivery expected. Without it, you're wide open to endless changes, surprise bills, and finger-pointing. It's your safeguard, not just paperwork.

There is nothing that can be redundant information when compiling a SOW. Every small thought in terms of work expectation should be mentioned with proper explanation wherever possible.

P.S.: Risk mitigation and IP of the work are sometimes not properly stated.