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Codex writes the pull request; IonWarp reviews it on GitHub with models from outside the family that wrote it.

By Ilya Volodarsky · Updated

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IonWarpbotcommented 15 min ago

IonWarp Review — PR #310

3 issues| 3 P1
#SevIssueFile
1Retry charges the same order twicebilling/checkout.ts
2Failed save still returns successapi/preferences.ts
3Reopening the editor clears saved changescomponents/editor.tsx
billing/checkout.ts
42434445
−+++
await payments.charge(order);await payments.charge(order, {  idempotencyKey: order.id,});

A timed-out response can charge the order twice · Code Review

When payment succeeds but the response times out, the caller retries the same order. Both calls charge it. Pass the stable order ID as the payment idempotency key.

Suggested fixAI fix prompt

How to review pull requests written with Codex

Codex code review posts a standard GitHub review when you comment @codex review on a pull request, or on every pull request once automatic reviews are on, and it follows the Code Review Rules in your AGENTS.md files.[1] In GitHub it flags only P0 and P1 issues.[1] Codex comes with every ChatGPT plan, and the reviews it runs on GitHub draw on the plan's Code Review usage.[2]

IonWarp adds an independent review. Code Review runs DeepSeek v4.1 Flash, a model from outside the family that wrote the code, and traces each change to the code that calls it; the planner adds Security Review or AI Architecture when the diff needs them. Every finding carries a fix prompt to hand back to Codex; Starter is free and Pro is $49/mo per workspace.

IonWarp gets you:

What a second reviewer catches on Codex pull requests

  • A caller outside the diff

    A changed signature, return shape or default that a file the pull request never touched still depends on. With tools to read the whole repository, about half of IonWarp's significant findings rest on code the pull request never touched.

    Code ReviewOn Starter, Pro and Max

  • A trust boundary that moved

    An auth check moved below the work it guards, a token in a log line, user input reaching a query or a shell.

    Security ReviewOn Starter, Pro and Max

  • A helper that already existed

    Coding agents rarely search before they write. The finding names the existing helper and asks for one implementation.

    AI ArchitectureOn Pro and Max

  • Docs that no longer match

    A README, API reference or config comment that still describes the behavior this pull request just changed.

    Docs FreshnessOn Pro and Max

IonWarp and Codex code review

OpenAI facts are from its public documentation, read on 2026-10-02; numbered notes link to the exact page.

IonWarp and Codex code review
CriterionIonWarpCodex code review
What it isA GitHub app that reviews every pull request, adding security, performance and docs reviewers when the diff needs themAnother high-signal review pass on GitHub pull requests that follows your repository guidance[1]
When it runsEvery new pull request, and again on each pushWhen you comment @codex review, or on every pull request with automatic review on[1]
What it postsFindings with a severity, a suggested fix and an AI fix prompt, tracked across pushes until resolved or declinedA standard GitHub code review that flags only P0 and P1 issues[1]
CostStarter free for 3 seats (15,000 credits on signup); Pro $49/mo per workspaceIncluded with ChatGPT plans; GitHub reviews draw on the plan's Code Review usage[2]

Starter is free for 3 seats. Pro is $49 a month with 5 seats, and Max is $149 a month with 10 seats. Compare plans

FAQ

Frequently asked questions

Sources

  1. Review GitHub pull requests with Codex — OpenAI, read 2026-10-02.
  2. Codex pricing — OpenAI, read 2026-10-02.
  3. Pricing — CodeRabbit, read 2026-10-02.

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