> Bron: https://neuralex.nl/en/showcase/reviewpilot
> ReviewPilot verifies every GitHub PR, routes the diff to the cheapest suitable model and posts back one substantiated review. Free for open source, € 9/mo for private repos, cost per review logged.

Showcase · ReviewPilot

# A code review on every pull request.

Install the GitHub App and every PR gets a concrete, friendly review within minutes: what the PR does, what is actually broken, what you might consider. No noise, no flattery — and **free for open source**. The diff automatically goes to the cheapest model that can handle it, and every review is traceable down to the cent.

[Request a demo](/en/contact) [See the tech](#techniek)

€ 0

for every public repository

€ 9

per month for private repos

< € 0,05

target cost per review

2

models, chosen automatically by diff size

Architecture

## From webhook to review, with a guardrail up front

GitHub knocks, ReviewPilot verifies the signature first and only then does anything happen. The diff determines which model does the work; the answer comes back as one comment. Underneath runs the same correlation thread as through the rest of the lab: every review is a cost line.

How it works

## Seven steps, one comment

### From PR to review

1.  GitHub sends a webhook the moment a pull request opens or updates
2.  The signature (HMAC-SHA256) is verified — no valid secret, no review
3.  Public repo → free tier; private repo → customer check
4.  A GitHub App token fetches the diff, read-only and per installation
5.  Diff size determines the model: small → DeepSeek V4 Flash, large → DeepSeek V4 Pro
6.  The review comes back as one clean PR comment, referencing file and line
7.  Every call gets a correlation id, so AgentLedger records the cost per review

What a review looks like

## Concrete, specific, and short where it can be

Every review follows the same shape: summary, what is really broken, what you should consider, and a few minor points. It never invents line numbers; if the diff is trivial, it says so in two lines instead of forcing feedback.

ReviewPilot · PR #42 — add rate limiting to /login

**Summary.** Adds a fixed-window rate limiter to the login route. Sensible approach; two edge cases need attention before merge.

**Must fix.**

-   auth.js:38 — the counter is keyed on username only, so an attacker rotating usernames bypasses the limit. Key on IP + username.
-   auth.js:51 — the window resets with Date.now() per request instead of per window, so the limit never actually triggers.

**Should consider.** Return 429 with a Retry-After header; add a test for the 11th attempt.

— 🧾 Review by ReviewPilot · free for open source · review.neuralex.nl

Example to illustrate the format; the content differs per PR.

Pricing

## Free for open source. Affordable for the rest.

### Open Source

€ 0/mo

-   Public repositories
-   10 reviews per repo per day
-   Smart model routing
-   Community support

[Sign up](/en/contact)

Most chosen

### Indie Dev

€ 9/mo

-   Unlimited reviews
-   Private repos included
-   Priority on the stronger route
-   Slack/Discord notifications

[Request a demo](/en/contact)

Why developers value it

## Not another bot

### Right after it opens

Feedback within ~2 minutes of a PR — no queue, no manual work.

### Smart routing

Small diffs to a fast, cheap model; large diffs to a stronger model. Always the cheapest one that fits.

### Privacy first

No data retention, no training on your code. The review is ephemeral: used and gone.

### Free for open source

Public repos get reviews at no cost. Every review is marketing at the same time.

### Transparent costs

On average under € 0,05 per review, with full cost logging via AgentLedger.

### No vendor lock-in

Runs on our own model router. No dependency on a single American API.

### Where it stands now

ReviewPilot runs in **dogfood**: the chain is built and tested, and reviews our own repos. The amounts and times above are prices and design targets — not production measurements. As soon as the test week is done, we replace them with real numbers from the register, just like with [AgentLedger](/en/showcase/agentledger).

Built with GitHub Appn8nHMAC-SHA256Bifrost model-routerDeepSeek V4Cloudflare WorkerAgentLedger

Early access

## Want AI reviews on your repos?

ReviewPilot installs as a GitHub App and posts back a substantiated review from the very first PR. Free for open source; for private repos we run a demo on your own code.

[Request a demo](/en/contact) [See the cost tracking](/en/showcase/agentledger)

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Volledige (opgemaakte) versie: https://neuralex.nl/en/showcase/reviewpilot