Comparison · both free
Diff Risk Reviewer vs Vibe-code Security Checker
The short answer
The Diff Risk Reviewer asks what behavior changed and what could break for users. The Security Checker asks who could abuse the change: leaked keys, missing auth, injection. Run both on anything touching accounts or money. Behavior first, then security.
Diff Risk Reviewer
Read a vibe-coded diff for behavior risk: what changed, what can break, and which check to run before you push.
- You paste
- Copy the diff, not the whole repo. From your editor or git, copy the unified diff for the change you are about to push. Keep it under a few hundred lines. If it is larger, review one file at a time.
- You get
- The check. Send the old cart fixture and assert the stored total matches the server sum, not the body.
- When to use it
- Use it when Cursor or Claude just wrote a change you did not type yourself and you need to know which behavior moved before you push.
- When to skip it
- It is not a style linter and it does not know your production traffic. If the diff touches payments or auth, a human reviewer still signs off.
- Runs in
- Cursor, Claude, ChatGPT
- Difficulty
- Medium
- Shelf
- Coding & Vibe Coding
Vibe-code Security Checker
A review prompt for vibe-coded diffs. It hunts secrets, missing auth, injection, and insecure defaults, then names the fix.
- You paste
- Save the prompt where you write code. In Cursor, add the prompt as a project rule or paste it at the start of a review chat. In Claude or ChatGPT, save it as a project instruction. The rubric JSON can sit beside it.
- You get
- What it will not do. It will not hand you a working exploit. The sample key is fake. The output is the safer handler, not a payload.
- When to use it
- Use it before you deploy anything a model wrote that touches logins, secrets, user data, or a database.
- When to skip it
- It is not a penetration test and it refuses to write exploits. It names the risk and the fix.
- Runs in
- Cursor, Claude, ChatGPT
- Difficulty
- Medium
- Shelf
- Coding & Vibe Coding
Questions
What is the difference between Diff Risk Reviewer and Vibe-code Security Checker?
The Diff Risk Reviewer asks what behavior changed and what could break for users. The Security Checker asks who could abuse the change: leaked keys, missing auth, injection. Run both on anything touching accounts or money. Behavior first, then security.
Are Diff Risk Reviewer and Vibe-code Security Checker free?
Yes. Both are free prompts from One Agent a Day under CC BY 4.0. Diff Risk Reviewer runs in Cursor, Claude, ChatGPT. Vibe-code Security Checker runs in Cursor, Claude, ChatGPT.
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