PR Walkthrough

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PR Walkthrough explains a pull request before anyone reads a line of it: what changed and why, how the changed files fit together, how behavior shifts, and where the risk is. It arrives as one structured comment at the top of the PR, separate from inline findings, so reviewers spend their time judging the change instead of reconstructing it.

GitHubaccounts-api#42 Feature preview
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Add tenant-scoped profile lookup

A new profile endpoint authenticates the caller, checks access in the service layer and scopes the database query to the caller's tenant.

Changed files summary

api/profiles.ts
services/profiles.ts

Add the route and enforce the caller's access policy.

API + behavior
repositories/profiles.ts

Keep tenant isolation inside the database query.

Data access
tests/profiles.test.ts

Cover own-tenant, cross-tenant and anonymous requests.

Verification

Sequence diagram

CallerAPIServiceRepository
GET /profiles/:id
Authenticate + authorize
Query by tenant + ID
Profile or not found
Tenant scope stays in the query, not just the response.

Estimated review effort

3 / 5 Moderate

Focus on authorization and cross-tenant behavior.

Linked issue assessment

Gap to verify

#128 requires isolation. Confirm the test fails without tenant scoping.

Related issues

#128 Tenant isolation for profile access

Related PRs

#38 Centralize profile authorization

Suggested labels

enhancementapisecurity

Suggested reviewers

@api-owner · @security-owner

Custom reviewer rules

Authentication or access-control changes → security owner.

Review status

Walkthrough ready

Inline findings remain in the code review.

AI-written code looks right. That is the problem.

Coding agents write code that reads well: idiomatic, clearly named, and consistent with the code around it. When it is wrong, the flaw sits in the logic or the structure, not on the surface.

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