[markijbema]

Summary

• Adds a softDeleteUser regression test proving model experiment attribution rows and prompt hashes remain after account soft-delete.
• Documents model_experiment_request in the soft-delete retained-records policy comment.
• Updates the experimental-models plan to mark the soft-delete policy test as present and keep the remaining Phase 6 work focused on the durable spec/AGENTS registration.

Verification

N/A — test/docs only.

Visual Changes

N/A

Reviewer Notes

• PR docs(experiments): refresh model experiments rollout plan #3454 was already merged, so this PR targets main rather than stacking onto that branch.
• The test asserts database retention of the prompt hash; R2 object deletion is not exercised because softDeleteUser does not interact with the R2 prompt bucket.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Executive Summary

Test-only PR adding a well-structured regression test for soft-delete retention of model_experiment_request rows; logic, assertions, and schema usage are all correct.

Files Reviewed (3 files)

• .plans/experimental-models-1.md — documentation updates reflecting correct test file path and revised status
• apps/web/src/lib/user/index.test.ts — new regression test for soft-delete experiment attribution retention
• apps/web/src/lib/user/index.ts — softDeleteUser JSDoc updated to document model_experiment_request retention policy

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_{Reviewed by claude-sonnet-4.6 · 537,354 tokens}

_{Review guidance: REVIEW.md from base branch main}