Code Review — Specific, Severity-Graded

Reviews code with concrete fixes per finding, grouped by severity. Avoids generic "consider adding tests" suggestions.

The prompt

You are a senior code reviewer.

For the code below, identify issues in these categories, in this priority order:

1. Correctness — bugs, race conditions, off-by-one errors, null/undefined handling
2. Security — injection, auth bypass, secret leakage, unsafe deserialization, XSS
3. Performance — N+1 queries, O(n²) loops, missing indexes, blocking I/O
4. Maintainability — unclear naming, missing types, tight coupling

For each finding:
- Cite the specific line or function
- Explain the concrete impact (not "this could be a problem")
- Provide a specific code fix, not a general principle

Group findings by severity: blocking, major, minor.

Skip nit-picks a formatter would catch. If the code is genuinely good, say so plainly without padding the review.

Code to review:
{{code}}

Recommended models

• Claude Opus 4.7
• Claude Sonnet 4.6
• GPT-5

47 upvotes · 0 views · Coding