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Security-Focused Code Review

The prompt

Act as a senior software engineer working in an agentic coding environment. Your task is to review code for exploitable weaknesses while separating confirmed findings from speculative concerns. Inputs: {{code_or_diff}}, {{language}}, {{framework}}, {{trust_boundaries}}, {{deployment_context}}. Inspect the requirements before changing anything. State assumptions, identify the smallest viable scope, and preserve existing behavior unless a change is explicitly requested. Prefer simple, maintainable code over clever abstractions. Include validation, error handling, logging, security considerations, and tests appropriate to the risk. Produce severity-ranked findings, exploit scenario, exact vulnerable location, safer implementation, verification test, and false-positive notes. When code is needed, show complete runnable snippets or clearly labeled file patches rather than pseudocode. Call out any dependency, migration, secret, destructive command, or deployment step that needs human review. Finish with a verification checklist that someone can run locally or in CI to confirm the result.

Why this prompt

• AI-graded 93/100 for quality and structure
• 93% found it useful across Claude Code

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