feat(mcp): respond with snapshot diff when beneficial#37500
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dgozman merged 2 commits intomicrosoft:mainfrom Sep 22, 2025
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feat(mcp): respond with snapshot diff when beneficial#37500dgozman merged 2 commits intomicrosoft:mainfrom
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pavelfeldman
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| - Page Snapshot: | ||
| \`\`\`yaml | ||
| - button "Button"`), | ||
| - Page Title: Title`), |
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I'd say if the dom did not change we should not include the snapshot at all, along with url / title.
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I'll follow up in a separate PR.
Upon capturing aria snapshot for a tab, we also diff it
against a previous one. If the diff is small enough, mcp tool
responds with the diff, otherwise it includes the full snapshot.
Example response:
```
- Page Snapshot Diff:
The following refs have changed
'''yaml
button "Button 1" [active] [ref=e2]
'''
'''yaml
button "Button 2" [ref=e3]
'''
'''yaml
listitem [ref=e5]:
- text: Filler 0
- button "new button" [ref=e105]
'''
```
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Test results for "tests 1"2 failed 4 flaky46969 passed, 821 skipped Merge workflow run. |
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…oft#37500)" This reverts commit c92b9a1.
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Upon capturing aria snapshot for a tab, we also diff it against a previous one. If the diff is small enough, mcp tool responds with the diff, otherwise it includes the full snapshot.
Example response: