edenfunf Code Review Checklist
Read the diff once for shape, then again for correctness. Comment on intent, not just style.
Security
Always use parameterized queries for every database access. Never concatenate user-provided strings into SQL statements directly. This includes dynamic WHERE clauses, ORDER BY clauses, and table names.
Validate and sanitize all user-provided data at the system boundary before it enters business logic. Reject inputs that do not match the expected shape, range, or type.
Secrets must never be committed to the repository under any circumstance. If you see one in a diff, ask the author to revoke it before merging.
Tests
Every PR must add tests for new behavior. Tests should describe the behavior, not the implementation. Prefer integration tests over mocks when the integration is cheap.
Logging
Never log secrets, personally identifiable information, or full request or response bodies. Scrub sensitive fields at the logging boundary using a structured logger.
Boundary discipline
Treat any data that crossed a network or process boundary as untrusted until proven otherwise. Apply the same scrutiny to data from other internal services as you would to data from the public internet. The threat model assumes lateral movement; act accordingly across every service-to-service hop in the system.