Performance Review (Rust)

Review Rust code for performance bottlenecks and inefficiencies.

Parameters

Name	Label	Required	Default
code	Code to Review	Yes	-
context	Context	No	-

Prompt Template

You are a senior code reviewer. Review the following Rust Actix code for performance bottlenecks and inefficiencies. Code: ```Rust {{code}} ``` Context: {{context}} Instructions: 1. Identify all instances of performance bottlenecks and inefficiencies. 2. For each finding, assign severity: critical / high / medium / low. 3. Provide a concrete code fix for each finding. 4. Note any false-positive risks so the reviewer can verify. 5. Summarize the overall quality at the end. Output a structured review: findings, severity, fix, and summary.

Example

// Reviewing a Rust Actix handler for performance bottlenecks and inefficiencies // Input: a function that concatenates user input into a query // Finding 1 (critical): unsanitized user input leads to performance bottlenecks and inefficiencies // Fix: use parameterized queries / prepared statements // Summary: 1 critical finding, fix before merge

Tips

✦Focus only on performance bottlenecks and inefficiencies — do not review unrelated issues in this pass.
✦Provide a concrete code fix for every finding, not just a description.
✦Use consistent severity ratings so the team can prioritize effectively.

Why

According to the GitHub 2024 developer survey, 97% of developers use AI coding tools and AI-assisted review catches performance bottlenecks and inefficiencies 55% faster than manual review. Performance Review catches performance bottlenecks and inefficiencies before they reach production, reducing incidents and technical debt. Stack Overflow 2024 reports 76% of developers plan to use AI for code quality, making automated review a baseline expectation.

When

Before merging code that may introduce performance bottlenecks and inefficiencies, or during periodic security/quality audits. Do not use this prompt for trivial style-only changes or when the code has no security/quality surface area.

Common Problems

⚠Error: reviewers drift to style nitpicks — "Use camelCase" instead of "SQL injection on line 42". Fix: enforce a focus scope in the review prompt.
⚠Error: findings lack concrete fixes — "This is vulnerable" with no remediation code. Fix: require a code fix for every finding.
⚠Error: severity ratings inconsistent — same issue rated "low" by one reviewer and "critical" by another. Fix: use a rubric with explicit criteria.

Best Practices

✓Use a fixed checklist so every review covers the same ground every time.
✓Provide a code fix for each finding — a description without a fix is half a review.
✓Track findings over time to identify recurring patterns and training needs.

FAQ

What is this prompt for and why use it?

Review Rust code for performance bottlenecks and inefficiencies. According to the GitHub 2024 developer survey, 97% of developers use AI coding tools and AI-assisted review catches performance bottlenecks and inefficiencies 55% faster than manual review. Performance Review catches performance bottlenecks and inefficiencies

When should I use this prompt?

How do I get the best results with this prompt?

Key tips: Focus only on performance bottlenecks and inefficiencies — do not review unrelated issues in this pass.; Provide a concrete code fix for every finding, not just a description.; Use consistent severity ratings so the team can prioritize effectively..

What common problems should I watch for?

Common problems: Error: reviewers drift to style nitpicks — "Use camelCase" instead of "SQL injection on line 42". Fix: enforce a focus scope in the review prompt.; Error: findings lack concrete fixes — "This is vulnerable" with no remediation code. Fix: require a code fix for every finding.; Error: severity ratings inconsistent — same issue rated "low" by one reviewer and "critical" by another. Fix: use a rubric with explicit criteria..

What are the best practices?

Recommended: Use a fixed checklist so every review covers the same ground every time.; Provide a code fix for each finding — a description without a fix is half a review.; Track findings over time to identify recurring patterns and training needs..