You built it
with AI.
Now make it yours.

Rotwise reads the code you didn’t write, ranks what is actually dangerous, and ships the fixes as small pull requests you approve.

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No credit card. Read-only scan. You’re in control.

From complexity to clarity

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Risk detectedSQL injectionapp/models/order.rb:24

Small change. Real progress.Fix ready for your review+12 −81 pull request

Your code, untangled.Illustrative scan

Whatever you build with.
Make it better with Rotwise.

Cursor Claude GitHub Copilot Windsurf Lovable

01 / See the whole picture

The happy path is only
half the story.

Your app works. Until an unhandled error, exposed secret, or slow query says otherwise. Find what’s hiding between the lines.

Close the open doors.

Catch hardcoded secrets, missing authentication, and injection risks before they become someone else’s opportunity.

SECRETS / AUTH / INJECTION

Expect the unexpected.

Spot swallowed exceptions, missing error handling, and untested code that only looks ready for production.

ERROR HANDLING / MISSING TESTS

Keep your momentum.

Find N+1 queries, tangled methods, and growing complexity that make every new feature harder to ship.

PERFORMANCE / COMPLEXITY

Built for Ruby, JavaScript, TypeScript, Python, Go, Rust, and PHP. Connected through GitHub.

02 / A way forward

From “we should
fix that” to
“already done.”

A clear starting point. A manageable fix.
A codebase you can keep building on.

Try it with your code

Reading northwind/storefront

No need to refresh. We email you the moment the report is ready.

Files parsed214

Findings so far6

Time elapsed1:12

Live progress Running analysis

Queued
Cloning repository
Parsing files
Running analysis
Scoring debt

Read-only. Your code is analyzed, never executed.

‹ northwind/storefront

Here’s what Rotwise found.

CompletedScan #491e72383 minutes ago

52/100

Debt score · Needs attention

A starting point, not a verdict. Every merged fix batch moves this number.

2P0 · Critical

4P1 · High

9P2 · Medium

3P3 · Low

Start hereHighest severity, highest confidence

P0SecurityAI reviewed

SQL built with string interpolation in order.rb

app/models/order.rb:24 · confidence 95%

Customer input is interpolated into a WHERE clause. A bind parameter keeps the input out of the statement.

2 fix batches sequenced, security first.

‹ Scan #4

Batch 1: Security fixes (P0)

Ready for review2 findings12 changed linesrotwise/batch-1

Approve & open PR ↗Skip

✓Both diffs pass git apply --check. Nothing is pushed until you approve.

#1P0SecurityFix ready

SQL built with string interpolation in order.rb

Proposed fix · Applicable+1 −1 · ~4 min review

Use a bind parameter instead of interpolating customer_id into the query.

@@ -22,4 +22,4 @@ class Order

def self.for_customer(customer_id)

- where("customer_id = #{customer_id}")

+ where(customer_id: customer_id)

end

Dry run. main is never touched.

Pull request open.

One batch, one pull request, one easy revert. Merge when you’re ready.

Fix SQL injection in order lookupOpen

#41 · rotwise/batch-1 → main · 1 file · +1 −1

Proposed diff reviewed
Batch approved by you
Pull request opened on GitHub
Your review. Your merge.

Debt score after merge52 → 61

Next upBatch 2 · Performance (P1)

Example only. No repository connected.

Intelligence, with boundaries.

AI proposes.You decide. ↗

03 / Trust is built in

Your code.
Your call.

Give AI the busywork. Keep the decisions that matter.

Nothing touches main without you.

Review the proposed diff. Approve the pull request. Merge when you’re ready.

Small enough to understand. Easy to undo.

Up to 8 findings and 300 changed lines per batch by default. Every pull request can be reverted.

Your source code isn’t our storage.

Repository clones are temporary and deleted after each job. Your code is analyzed, never executed.

More about access and security

For the builders who keep building

Your next big idea deserves
a better foundation.

The weekend project that became a business. The MVP finding its first customers.
The codebase you just inherited. Keep the progress. Clean up what’s underneath.

Solo foundersSmall engineering teamsYour first engineering hire

04 / Start with clarity

Your first step is free.
Your next is up to you.

See where your code stands. Choose a paid plan when you’re ready to turn findings into fixes.

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−Report only; fixes on paid plans

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Keep your side project moving.

Get started

✓1 repository
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✓5 fix batches / month

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14-day trial

$499/ month

Make room for your next stage.

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✓3 repositories
✓Unlimited scans
✓75,000 lines per repository
✓Unlimited fix batches

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Clarity across a growing codebase.

Get started

✓10 repositories
✓Unlimited scans
✓250,000 lines per repository
✓Unlimited fix batches

Start on Free Scan. Upgrade from your dashboard whenever you’re ready.

A little more context

Good questions.
Straight answers.

Something else on your mind?
Let’s talk

What do I get with the free scan?

Connect one GitHub repository and run one scan per month on up to 10,000 lines of code. You get a debt score and a prioritized report of findings. Generating fixes and opening pull requests requires a paid plan. No credit card is needed for Free Scan.

Will Rotwise change my code automatically?

No. Scanning is read-only. On a paid plan, you can generate proposed fixes and inspect the diff before you approve a batch. Only then does Rotwise open a pull request on a separate branch. You decide whether and when to merge it.

Which languages and repositories are supported?

Rotwise analyzes Ruby, JavaScript, TypeScript, Python, Go, Rust, and PHP repositories hosted on GitHub, including private repositories. You choose which repositories the GitHub App can access. You don’t need to change your editor or coding workflow.

What happens to my source code?

Rotwise temporarily clones your selected repository for analysis, then deletes the clone when the job finishes. Relevant code is sent to Anthropic’s Claude for AI analysis and fix generation. Rotwise does not execute your code or run your test suite. Findings and proposed diffs remain available in your account.

What permissions does the GitHub App need?

The app requests access to repository contents, pull requests, and metadata so it can scan code and open approved fixes. Installing the app grants write access for that workflow, but a scan itself makes no changes. You control the repositories it can access and can revoke access in GitHub.

How is this different from asking my AI editor?

Your editor helps you write the next change. Rotwise examines the repository for existing debt, ranks the risks, and sequences fixes into small batches. Each proposed change includes a diff you can review, so cleanup becomes a repeatable part of shipping.

From the blog

Notes on code
that lasts.

Field notes on the debt AI-generated code leaves behind, and on paying it down one pull request at a time.

Diligence

Read the blog

Less debt. More possibility.

Keep the ambition.
Lose the tech debt.

Scan my code for free

Your first scan is free. Your code stays yours.

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          . : + # @ @ # * + + * # @ @ # + : .
       . : * @ @ * : .           . : * @ @ * : .
     . + # @ # :                     : # @ # + .
    : * @ @ +                         + @ @ * :
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   : * @ # .     : * @ @ @ @ @ * :     . # @ * :
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              . : + * # @ @ @ @ # * + : .
                    . : + * * + : .

[ a little less tangled. ]

You built it
with AI.
Now make it yours.

The happy path is only
half the story.

Close the open doors.

Expect the unexpected.

Keep your momentum.

From “we should
fix that” to
“already done.”

Reading northwind/storefront

Here’s what Rotwise found.

SQL built with string interpolation in order.rb

Batch 1: Security fixes (P0)

SQL built with string interpolation in order.rb

Pull request open.

Your code.
Your call.

Nothing touches main without you.

Small enough to understand. Easy to undo.

Your source code isn’t our storage.

Your next big idea deserves
a better foundation.

Your first step is free.
Your next is up to you.

Free Scan

Indie

Startup

Growth

Good questions.
Straight answers.

Notes on code
that lasts.

Technical due diligence checklist for AI-generated code

Vibe coding technical debt: what it is and how to pay it down

Five security holes AI coding assistants leave behind

Keep the ambition.
Lose the tech debt.

You built itwith AI.Now make it yours.

The happy path is onlyhalf the story.

Close the open doors.

Expect the unexpected.

Keep your momentum.

From “we shouldfix that” to“already done.”

Reading northwind/storefront

Here’s what Rotwise found.

SQL built with string interpolation in order.rb

Batch 1: Security fixes (P0)

SQL built with string interpolation in order.rb

Pull request open.

Your code.Your call.

Nothing touches main without you.

Small enough to understand. Easy to undo.

Your source code isn’t our storage.

Your next big idea deserves a better foundation.

Your first step is free.Your next is up to you.

Free Scan

Indie

Startup

Growth

Good questions.Straight answers.

Notes on codethat lasts.

Technical due diligence checklist for AI-generated code

Vibe coding technical debt: what it is and how to pay it down

Five security holes AI coding assistants leave behind

Keep the ambition.Lose the tech debt.

You built it
with AI.
Now make it yours.

The happy path is only
half the story.

From “we should
fix that” to
“already done.”

Your code.
Your call.

Your next big idea deserves
a better foundation.

Your first step is free.
Your next is up to you.

Good questions.
Straight answers.

Notes on code
that lasts.

Keep the ambition.
Lose the tech debt.