Prelint

Catches AI-written code that works but drifts from your actual product spec

What it is

Prelint reviews every pull request against your product specs, architecture decision records, and business rules, then flags spots where AI-written code technically works but drifts from what the team actually decided to build. It's built for teams whose engineers ship fast with AI coding agents but keep losing time to code that works yet misses the point. There's a free path for open source projects and a pay-per-review model with no seats, so small teams can try it without a subscription commitment.

Catching AI agents that solve the wrong problem correctlyEnforcing ADRs and business rules on every PR automaticallyReducing manual review load on teams that ship with AI coding agentsOpen source maintainers who want spec-drift checks without cost

Price: $1; free tier available
Free tier: Yes; no card required
Platforms: 2; Web · API

What you get free vs paid

Verdict

Where it wins and loses

Pros

Checks pull requests against your own specs, ADRs, and business rules instead of generic code style
Pay-per-review pricing with no seats, so cost scales with actual usage
Free for open source projects, plus a startup program
Specs live as markdown/YAML in your own repo instead of a locked-in dashboard
On teams running multiple AI reviewers, a large share of the comments that actually get fixed come from Prelint's product-drift checks specifically

Cons

Only useful if your team actually writes down specs, ADRs, or constraints for it to check against
Narrower scope than a general code reviewer; it's not trying to catch bugs or style issues
Newer product with a small independent track record outside its own Product Hunt launch

Worth adding alongside your existing AI code reviewer if your team already documents product decisions, since it catches a specific failure mode (correct code, wrong direction) that generic reviewers miss entirely.
— QuestLoops verdict

Capabilities

Core features

Reviews every pull request against product specs, ADRs, and business constraints
Flags AI-written code that works but breaks a documented product decision
Specs stored as markdown or YAML alongside your codebase
GitHub and GitLab integration
Pay-per-completed-review pricing with no per-seat cost
Free tier for open source projects

AI stacks & blueprints

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Common questions

Prelint · 3 questions

Is Prelint free?

Prelint offers a free tier you can use without paying. Browse QuestLoops for verified ways to get more out of it for free.

How much does Prelint cost?

Prelint's paid plans start at about $1. There's also a free tier for lighter use. Pricing changes over time — QuestLoops focuses on legitimate ways to reduce or avoid that cost.

What are the best alternatives to Prelint?

You can compare Prelint side-by-side with similar Developer Tools on QuestLoops to weigh free-tier limits, pricing, and tradeoffs before deciding.

Community workarounds

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