Review Examples

Written by a senior engineer.
Every single time.

Six real PR reviews across different languages and severity levels. No generic platitudes — specific findings, real diffs, actionable fixes. This is what Codio ships on every pull request.

TypeScript High
#01

SQL Injection in User Input Handler

Unsanitized user input directly interpolated into raw SQL query — classic injection vector.

payments-service · 1 file · +18 / -6 lines
Read full review
Python Medium
#02

Missing Test Coverage for Payment Edge Case

New payment processor logic has zero test coverage for refund reversal scenarios.

billing-service · 3 files · +142 / -28 lines
Read full review
TypeScript High
#03

Race Condition in Async Cache Refresh

Concurrent cache invalidation calls can overwrite each other, serving stale data.

auth-service · 2 files · +45 / -12 lines
Read full review
Go Medium
#04

Unhandled Error in HTTP Client Retry Logic

Retry loop swallows errors on non-idempotent requests, silently dropping failed calls.

notification-worker · 1 file · +33 / -9 lines
Read full review
Python Medium
#05

N+1 Query in ORM Lookup Loop

Loop over users executes one DB query per iteration instead of batched fetch.

reporting-api · 2 files · +67 / -14 lines
Read full review
TypeScript Blocks Merge
#06

Standards Violation: Missing Input Validation

Endpoint accepts raw request body without schema validation per standards.md Rule #4.

api-gateway · 4 files · +89 / -21 lines
Read full review

Get these reviews on every PR.

Join the waitlist — Codio reviews pull requests automatically, every time, with no reminders needed.

Join the waitlist