A message lands in Slack or email mid-task: could you also add a fourth page, or one more screen, or a small extra that was never in the quote. You have thirty seconds before the reply either gives away free work or reads like a refusal. This page shows the manual way to answer it fairly, with a written record of what was agreed, using nothing but the message you already have.
Do this before you type a single word back.
Cost in time: quoting the scope line and naming the extra takes a minute or two once you know where the original quote lives. Estimating hours and writing the change order by hand, from a blank page, usually takes ten to fifteen minutes, longer if the file has no reusable layout.
Scopeframe runs the same idea in one file, in your own browser tab, with nothing installed and no account. Paste the ask, name the scope line it falls outside, enter hours, rate and days, and it writes back a reply in three tones and a one-page change order. Try the free version, which writes all three tones and the change order preview, or visit the product page to buy the file, which adds the log, monthly totals, your remembered rate and CSV export, 19.00 USD personal, 79.00 USD team, one purchase. A change order is a document you send to your client; it is not a contract on its own, and nothing on this page is legal advice. A company that wants every desk covered can take the Source and Intranet Licence, all six tools with their source, one purchase.
What you type stays in your browser and in the files you save. Nothing leaves this page.