slopsieve: a diff linter for the AI slop era

Description and use

slopsieve is a CLI tool that scores diffs and PRs on 12 code hygiene signals, helping to surface hidden issues and improve the review process.

Problem

Maintainers struggle with code quality in pull requests, as code may appear fine until reviewed, leading to wasted time and potential bugs.

Outcome

slopsieve provides a quick, zero-dependency way to surface common PR hygiene issues, reducing manual review effort and catching problems that might otherwise slip through.

Workflow

• 1. Run npx slopsieve <diff_or_pr> to analyze the diff.
• 2. Review the printed score and flagged lines.
• 3. Optionally use --fail-at <threshold> to fail CI if score is below the threshold.
• 4. Use --json to feed the output into other tooling.

Evidence

so i built slopsieve, a zero-dep node CLI that scores a diff or PR for the 12 signals a tired reviewer checks at 1am

Source

what it does: parses the unified diff, runs 12 weighted checks (it.skip, assertions removed, console.log/debugger, catch-all deps, exports nothing references, "this function..." comments), prints file and line for every flag.

Source

--fail-at makes it a CI gate, --json feeds tooling.

Source

the bug that embarrassed me: my debug-leftovers regex dd\s*\( matched isQuantityOdd( because the string "dd(" hides inside "Odd(".

Source