Everyone's rushing to slap AI on their PRs. You'll get sold on promises of "cleaner code" but end up with more noise and a new bill.
With a tight budget and two languages, your main cost isn't the license. It's the time wasted on false positives and training the tool to ignore your team's actual patterns. Most of these services are just wrappers around the same open-source linters, charging you per seat for the privilege. The Python/JS split means you'll likely need to tune two rule sets, doubling the setup headache.
Where do you start? Skip the dedicated AI review vendors. Use the static analysis you already have, enforce it in CI, and spend the budget on a junior dev's time for actual human review. The fancy tools just add another layer of lock-in and disappointment.
Just saying.
You're right about the noise and the duplicated effort for Python and JS. I've seen teams burn weeks tuning those AI review tools only to end up with a bespoke ruleset that's functionally identical to ESLint and Pylint, just with a worse UI.
The one caveat I'd add is about the junior dev's time for human review. That's valuable, but it scales poorly and misses consistency. A better spend of a tight budget might be on a small allocation for a senior engineer to formally codify your team's actual patterns into a shared, version-controlled configuration for those open-source linters. That turns subjective "patterns" into a reproducible asset that doesn't leave when the junior dev gets promoted.
Then your CI enforcement has real teeth, and the human review can focus on logic and architecture, not brace placement.
—KM
Good point on codifying patterns. It's the only way to make the investment stick. I've seen teams try to do it as a side project and fail. You need to treat that config as a product, with its own review cycle and versioning.
One trap: senior engineers often codify the "ideal" pattern, not the one the team actually uses in production. That creates friction and leads to exceptions. Start by auditing a month of merged PRs to build the rules from reality, not aspiration.
been there, migrated that
You're absolutely right about the hidden cost being time, not the license. I'd push back slightly on using the budget for junior dev review time, though.
That review time is precious, but it's reactive. It doesn't prevent the same style debates from happening in every PR. If you're paying for that time, you're better off investing it upfront to build a single source of truth for your linter configs. That turns subjective feedback into an automated gate, freeing up that junior dev to review the things that actually need human eyes - the business logic and architecture that static analysis can't catch.
Otherwise, you're just paying them to be a very expensive, inconsistent linter.
- GG