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Tracks›Claude Cowork
L2Lesson 7Free

Compare versions without losing the thread

Draft, final, old, and new

After this, you'll be able to create a version comparison table and use it to make Claude's work with local files safer and easier to verify.

Before you start

Complete Rewrite a document with source proof first.

The idea

File folders often contain versions. Claude needs to know which one is source, draft, final, old, or current. This lesson asks you to make a version comparison table, not a broad promise that Claude can use files. The output should be specific enough that you can inspect what Claude read, what it produced, and what still needs review.

Two document versions overlap and changes are hard to inspect.
Two document versions overlap and changes are hard to inspect.

Here is the before and after: Before, Claude reads whatever file looks relevant and may mix old and new facts. After, the comparison table shows what changed, what stayed, what conflicts, and which file should be treated as current. For example, a client folder might include notes, drafts, exports, and old versions. The lesson output should say which files are in scope, which are out, what Claude is making, and how you will prove the result came from the right source.

Now try it: Give Claude two or three versions and ask for a comparison before synthesis. Make one choice before asking Claude to work: folder, file set, output shape, source check, access path, or maintenance rule. That choice keeps desktop file work from becoming vague local search.

Compare versions without losing the thread runtime mapThe folder workflow works when a version comparison table connects the input, the check, and the next step.
  1. 1
    Messy inputThe raw desktop files material before the lesson shapes it.
  2. 2
    a version comparison tableThe thing you can inspect, edit, and reuse.
  3. 3
    Review checkThe source check that catches a weak assumption.
  4. 4
    Next stepThe output moves into the next lesson instead of sitting alone.

The lesson is done when you can show the source boundary, the output, and the check that proves the output is safe to use.

Try it (15 min)

Watch out for

  • Assuming newest filename means current truth.
  • Mixing draft and final content.
  • Ignoring conflicts because the answer sounds coherent.

Paste this into Claude

Compare these file versions: [list files]. Return Version, Date, Status, Major Changes, Conflicts, Which File Is Current, What To Ignore, and Questions Before Using These Files.

If any input is missing, ask me up to three questions before producing the artifact. Then return five sections: Finished Artifact, Realistic File Example, Assumptions To Check, What I Should Use In The Next Lesson, and One Risk If I Trust This Without Fixing It. Keep the answer practical enough that I can paste it into my folder workflow notes.

Created by potrace 1.16, written by Peter Selinger 2001-2019 What a good response looks like

Finished Artifact:
- a version comparison table
- Why it matters: it gives the folder workflow a concrete thing to inspect instead of a vague intention.
- Use it next: paste this artifact into the next lesson before asking Claude to write, build, import, publish, or review anything.

Reality Check:
- The artifact names the user, input, decision, owner, or proof it depends on.
- The weakest assumption is visible.
- The next step can be completed in one sitting.

Created by potrace 1.16, written by Peter Selinger 2001-2019 What good looks like

  • Versions are named and dated when possible.
  • Current file is identified or marked uncertain.
  • Conflicts are listed.
  • Ignored files or sections are named.

Created by potrace 1.16, written by Peter Selinger 2001-2019 Go deeper (8 min)

Paste this into Claude

Without rereading the lesson, explain why a version comparison table matters in three bullets. Then apply it to a second file example: [describe a different folder or document set]. Return What Changed, What Stayed The Same, What To Check Before Trusting The Output, and the exact next action.

Created by potrace 1.16, written by Peter Selinger 2001-2019 What a good response looks like

Transfer Check:
- What changed: the second example has a different audience, input, or delivery context.
- What stayed the same: a version comparison table still needs a source, a review check, and a next step.
- Before trusting it: inspect the source check that would catch a wrong assumption.
- Next action: run the check once, then carry the revised artifact into the next lesson.

Created by potrace 1.16, written by Peter Selinger 2001-2019 What good looks like

  • You explained the lesson idea from memory before applying it again.
  • The second example changes the artifact instead of copying the first answer.
  • The trust check names a real risk.
  • The next action can be done in one sitting.

When this breaks

  • Breaks when old and new files are mixed because the final output carries stale decisions.
  • Fails when conflicts are hidden because the owner cannot resolve source truth.

AI can help with this

Paste the exercise prompt into Claude with your real folder or file context. Ask Claude to interview you one question at a time, produce a version comparison table, challenge the weakest assumption, and rewrite the artifact once so it is ready for the next file step.

Two thin outline document versions separate into a light comparison grid with keep, change, and question lanes, and no filled cells.

Created by potrace 1.16, written by Peter Selinger 2001-2019 You can now

✓

You can point to a version comparison table.

  • ✓You can explain which files are in scope.
  • ✓You can name the assumption that still needs checking.
  • ✓You can use the output in the next lesson.

Key takeaways

Version comparison protects desktop file work from stale or conflicting source material.

  1. 1Newest file name is not proof.
  2. 2Conflicts should be visible.
  3. 3Draft and final need labels.
  4. 4Synthesis should wait for source truth.

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Rewrite a document with source proofAsk for source-backed questions
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