By task · 6 free agents
AI for vibe coding
Free prompts for the parts of vibe coding the model skips: reviewing the diff, testing what you forgot, auditing env vars, and handing off a session.
Vibe coding gets a feature on screen fast. These prompts cover the boring half that decides whether it survives: reviewing the change, testing the cases nobody mentioned, keeping config in sync, and picking up tomorrow where you stopped.
Each one is a plain prompt you paste into the tool you already use. No extension, no account.
Which one to use
- 01 · Coding & Vibe CodingEasySession HandoffPaste the mess from a coding session. Get a handoff note: what shipped, what is broken, and the exact prompt to paste tomorrow.When to use itUse it at the end of a coding session, before you close the laptop and lose what the chat knew.When to skip itIt summarizes what you paste. It does not read your repo, so paste the git status and the last errors too.
- 02 · Coding & Vibe CodingMediumVibe-code Security CheckerA review prompt for vibe-coded diffs. It hunts secrets, missing auth, injection, and insecure defaults, then names the fix.When to use itUse it before you deploy anything a model wrote that touches logins, secrets, user data, or a database.When to skip itIt is not a penetration test and it refuses to write exploits. It names the risk and the fix.
- 03 · Coding & Vibe CodingMediumEnv Var AuditorPaste .env.example and the code that reads it. Get missing keys, unused keys, and names that look like live secrets.When to use itUse it when .env.example and the code drifted apart and you cannot tell which key the app will demand at boot.When to skip itNever paste your real .env with live values. Paste the example file and the code that reads it.
- 04 · Coding & Vibe CodingMediumTest Plan from the PromptPaste the prompt you used to vibe-code a feature. Get the checks to run before merge, including the case that prompt forgot.When to use itUse it right after you vibe-code a feature, when the happy path works and the cases you never mentioned are untested.When to skip itIt writes the checks, not the test code. Ask your coding agent to implement the cases once you agree with the list.
- 05 · LearningEasyExplain Like I'm ShippingLearn a concept by making the model explain the smallest version you could ship this week, then quiz the gap.When to use itUse it when you can recite the definition of something like idempotency or OAuth and still freeze when you try to add it to your project.When to skip itIt is not a full course. It teaches the smallest version you could ship this week and quizzes the gap, then stops.
- 06 · Coding & Vibe CodingMediumDiff Risk ReviewerRead a vibe-coded diff for behavior risk: what changed, what can break, and which check to run before you push.When to use itUse 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 itIt 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.
Side by side
- Diff Risk Reviewer vs Test Plan from the PromptThe Diff Risk Reviewer reads the code the model wrote and names what could break.
- Diff Risk Reviewer vs Vibe-code Security CheckerThe Diff Risk Reviewer asks what behavior changed and what could break for users.
- Env Var Auditor vs Vibe-code Security CheckerThe Env Var Auditor reconciles your .env.example with the code and flags secret-looking values.
Questions
What is the best free AI prompt for vibe coding?
It depends on what you start with. Session Handoff: use it at the end of a coding session, before you close the laptop and lose what the chat knew. Vibe-code Security Checker: use it before you deploy anything a model wrote that touches logins, secrets, user data, or a database. Env Var Auditor: use it when .env.example and the code drifted apart and you cannot tell which key the app will demand at boot. Test Plan from the Prompt: use it right after you vibe-code a feature, when the happy path works and the cases you never mentioned are untested. Explain Like I'm Shipping: use it when you can recite the definition of something like idempotency or OAuth and still freeze when you try to add it to your project. Diff Risk Reviewer: 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.
Are these vibe coding prompts really free?
Yes. All 6 are free to copy and reuse under CC BY 4.0, with no sign-up. They are plain-text prompts you paste into ChatGPT, Claude, Gemini, or Cursor.
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