Internship Diary Entry: April 9, 2026

Role: AI Engineer — SynerSense Project: AnanaCare CDSS (API Contract Simplification & Flow Stabilization) Hours Worked: 8

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Daily Work Report (Apr 09, 2026)

Work Summary

Simplified the validation API contract and stabilized the end-to-end Validate → Analyze flow. Focus areas included a minimal JSON response format, frontend integration updates, flow standardization, server verification, and migration planning for removing legacy fields.

Hours Worked

8.0

Show Your Work (References)

• Validation API Contract Simplification
  • Refactored /api/validate/image to return a minimal JSON response.
  • Removed legacy fields: valid, face_detected, dimensions.
  • Updated all return branches including error cases (e.g., oversized images) to match the new schema.
• Frontend Integration Fix
  • Updated internal test UI (index.html) to align with the new contract.
  • Replaced face_detected dependency with validate_image_cache_id as the driver for the analyze step.
  • Ensured analyze flow consumes the returned image ID directly.
• End-to-End Flow Alignment
  • Standardized pipeline: Upload → Validate → return image_id → Analyze using image_id.
  • Confirmed analyze endpoint works using the cache-based image reference.
• Server Verification
  • Started FastAPI dev server and verified startup, response validation, and endpoint behavior.
• Migration Planning
  • Created a migration plan for removing legacy validation fields; noted it was reverted and requires a persistent migration record.

Learnings / Outcomes

• Minimal API responses simplify frontend integration and reduce redundancy.
• Removing legacy fields requires repository-wide auditing and careful migration notes.
• Using image_id as a single source of truth simplifies multi-step flows.
• Strict backend–frontend contract alignment prevents subtle integration bugs.

Blockers / Risks

• Residual code may still reference removed fields (valid, face_detected, dimensions).
• Consumers (frontend or scripts) may break if not updated for the new schema.
• Migration documentation must be preserved to avoid confusion during future changes.

Skills Used

API design and schema simplification, FastAPI endpoint verification, frontend integration, migration planning, end-to-end flow testing.

Next Step

1. Perform a repo-wide search to remove references to deprecated fields.
2. Run full end-to-end tests (invalid image, oversized image, valid image → analyze).
3. Recreate and commit a persistent migration note documenting the API change.
4. Add defensive handling in frontend for missing/optional fields.

Outcome

Validation pipeline is cleaner, more consistent, and easier to integrate; the system now centers around image_id for multi-step flows, improving reliability and production readiness.