Files
supabase/apps
Charis 8920439569 Expose previous notebook content in update_notebook (#49401)
## Summary
- Plumb pre-update notebook snapshot through `update_notebook` tool
response as `previous_content`
- Add sanitizers in `tool-sanitizer.ts` to strip snapshot before model
sees it
- Add client-side stripping in `prepareMessagesForAPI` to avoid
re-uploading snapshot on subsequent turns
- This is PR 2 of 3 fixing Linear issue FE-4243 (notebook update
proposal shows 'unapplyable' error for already-completed updates)
- Ships no visible behavior change on its own; enables PR 3 to restore
diff preview for completed updates

## Test plan
- [x] Unit tests: 80/80 passing across notebook-tools.test.ts,
tool-sanitizer.test.ts, generate-assistant-response.utils.test.ts,
message-utils.test.ts, and mock-tools.test.ts
- [x] Typecheck: clean for all changed files
- [x] ESLint: zero errors, lint:ratchet passes (exit 0)
- [x] Integration: previous_content is correctly populated with
pre-update notebook, stripped before model context, and stripped on
client-side re-upload

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **Bug Fixes**
- Notebook updates now retain previous content for recovery and history.
- AI responses expose only the notebook’s ID and name, keeping previous
content out of model-visible data.

- **Tests**
- Added coverage for notebook update results, content sanitization, and
message preparation, including cases where previous content is absent or
preserved.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-08-21 14:58:32 -04:00
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2026-08-20 20:05:35 +10:00