Like Most of Your AI Draft? Fix One Part Without Starting Over

One awkward paragraph does not need a whole new draft

You like the opening. The structure makes sense. One paragraph is too wordy. So you ask AI to improve it—and get a different opening, a new structure and several changes you never requested.

That is the frustration I address in the workshop when we move from an onboarding checklist into an editable document. I want to keep the text that is working and make changes where I need them. I can type a word myself, or select a passage and ask for help with that passage.

You do not need to describe the problem like a professional editor. Say what you mean: shorten this paragraph, make these actions easier to follow, or explain this term. Then inspect what actually changed.

Keep the text and open it for editing

What to notice: Notice how Joe tells the AI to preserve the existing wording before opening Canvas. This is the workshop interface; use the current steps in the article if your controls differ.

0:58. From The One-Person AI Business, 47:09.60–48:07.20.

Visual context: Joe demonstrates moving existing text into Canvas. His spoken instruction asks to preserve the text and open it for editing.

Give yourself a version to come back to

Before you ask for a revision, keep a copy of the draft you like. Give it a useful name, such as “Welcome guide — before shorter introduction.” You need something to compare with if the next response changes more than you intended.

In the workshop, I ask for the existing text to be opened for editing without changing it first. That instruction establishes the job, but it is not a guarantee. Check the document after it opens: same title, same sections, same important details.

I want to edit this existing draft, not create a new version of its content.
Open the exact text below as an editable document.
Keep its wording, headings, order, facts and references unchanged.
Wait for my editing instructions after opening it.

[Paste the complete draft you want to preserve.]

This is an authored prompt based on the workshop method. Pasting the exact draft avoids relying on an uncertain reference such as “that thing we wrote earlier.”

Choose the smallest change that solves the problem

If you know the replacement word, type it. AI does not need to mediate every correction. Use an AI-assisted edit when you want help expressing something more clearly or reorganizing a passage.

Gemini Canvas supports direct text editing and requests applied to selected text. On the computer version, Google documents starting Canvas through Add Files → Canvas. Open the draft, select the text you want help with and enter the requested change. Saved versions are available through the previous and next version controls. See Google’s Canvas instructions.

For a local edit, avoid starting with a document-wide request such as “make everything more professional.” Define a boundary and a purpose: “Change only this paragraph into three short bullets, keeping every condition.” You can widen the task later if the document needs it.

Make it easier to read without changing the rule

Here is a fictional practice paragraph created for this article. The revision below is an authored example, not an actual AI response or a policy from the workshop.

The purpose of this edit is to help a new volunteer follow the sequence. Here is a request that defines both the improvement and what must remain intact.

Edit only the selected paragraph into a short checklist.
Keep every requirement and condition, including what to do if the email is missing.
Keep the same meaning. Do not add a start time, contact details or new rules.
Do not change the rest of the document.

Notice what the edit did not decide for you: an arrival time, an email address, or permission to begin work before orientation. If a generated revision adds any of those, reject that addition. A cleaner layout does not make a new instruction correct.

Read the difference, then read the whole passage

Check the revised passage against the old one before moving on. A quick comparison can reveal a dropped condition or a change from “may” to “must.” Then read it with the paragraph before and after it. A good sentence can still interrupt the surrounding explanation.

• Meaning: does the revision say the same thing, unless you deliberately changed the idea?
• Details: are names, amounts, dates, responsibilities and references intact?
• Scope: did anything outside the selection change?
• Voice: would you actually say this, and will your reader understand it?

If the task was to shorten, compare the length too. Sometimes a polished replacement is longer than the passage you were trying to simplify.

For a student working within their course’s AI rules, add one more step: explain why you accepted or rejected the revision. “I kept the condition and separated the actions” shows an editing decision. “AI said this version was better” does not explain the choice.

Treat added information as a new decision

In the workshop, I also describe asking for more detail or outside sources. That changes the task. You have moved from expressing existing information differently to adding information that needs its own evidence.

Keep the two jobs separate. First decide whether the paragraph needs expansion. Then ask for proposed additions with their supporting sources. Read those sources before placing the new claims into the draft. An existing handbook reference cannot support a new recommendation simply because the recommendation sits beside it.

With the historical Valve practice handbook, an added day-by-day onboarding schedule remains a proposal. Editing its wording does not turn the schedule into company policy. The same applies to a procedure, course requirement or research claim in your own work.

If it changes too much, narrow the request

Return to your saved copy. Select a smaller passage and ask for one change. If the tool still rewrites surrounding text, ask it to suggest a replacement in the conversation without applying it, then paste in the version you accept.

If the wrong document opens, supply the exact draft again. Do not assume a fresh chat can retrieve the one you mean. During the workshop, people needed help getting into the right editing view; that does not establish one universal cause or fix for every account.

Try this now: choose one paragraph in a draft you mostly like. Save the current version, make one direct edit and one selected-text edit, then compare both. Stop when the paragraph serves its purpose and the rest of the document still says what you intended.

If the difficulty is getting any draft on the page, start with a small draft you can respond to. Once you have useful text, this focused editing process helps you keep it.

Questions that come up

About this lesson

First-person teaching adapted from Joe McKenna’s September 29, 2026 workshop transcript: preserving existing wording on entry to Canvas, direct text edits, selection-based edits and plain-language revision requests. Practice volunteer paragraph, before/after revision, prompts and comparison checklist authored for this article. No direct spoken quotations, actual generated-response claims or audio-verification claims. Omitted unsupported blanket product claims, speculative connection diagnosis and promises of cross-chat retrieval. Current Canvas controls verified against Google’s official help on September 30, 2026.

Source passages: 45:18–48:07; 48:56–51:07; 52:14–52:40. Source: The One-Person AI Business, September 29, 2026.

Official guidance checked September 30, 2026. Product features can change.

• Create docs, apps & more with Canvas — Google Help

AI-assisted organization and supplementary examples. Prepared from Joe McKenna’s workshop.