20 vibe coding prompts with dated test notes
20 prompts for the moments that decide whether a build works: before it starts, when it breaks, and before it ships. Each one has its own page with the full text, a copy button, and a test log.
18 of the 20 prompts were run in a chat window on September 27, 2026 and graded against pass standards written before the runs: ChatGPT on all 18 and Claude.ai on 7. The other two say Not tested yet. A run that fails gets logged the same way as one that works.
Every run was graded against pass standards written down and dated before the run. If your AI tool has just told you something is finished, start with how to check “done”.
The same prompts are also a deck of cards you can filter and flip through, on the home page.
Build
- Lock the StackStop it choosing your tools for youPass, ChatGPT (Pro), September 27, 2026; Partial, Claude.ai (Fable 5.1 Max), September 27, 2026
- Security BoundaryAI will not guess your privacy rulesPass, ChatGPT (Pro), September 27, 2026; Pass, Claude.ai (Fable 5.1 Max), September 27, 2026
- Plan Before It TypesRead, then suggest, then stopPass, ChatGPT (Pro), September 27, 2026; Pass, Claude.ai (Fable 5.1 Max), September 27, 2026
- Reversible MigrationEvery database change arrives with its undoPartial, ChatGPT (Pro), September 27, 2026
- Red Before GreenThe test exists before the feature doesNot tested yet
- Write the Rules FileThe standing rules, taken from your actual projectNot tested yet
Debug
- Hand It An ErrorGive it more than “it broke”Pass, ChatGPT (Pro), September 27, 2026; Pass, Claude.ai (Fable 5.1 Max), September 27, 2026
- Policy RecursionYour database rule is chasing its own tailPartial, ChatGPT (Pro), September 27, 2026; Pass, Claude.ai (Fable 5.1 Max), September 27, 2026
- Verify The ImportsIt used something that does not existPartial, ChatGPT (Pro), September 27, 2026
- Measure Before OptimisingNo guessing at slowPartial, ChatGPT (Pro), September 27, 2026
Refine
- Stop RefactoringYou asked for one line, you got four hundredPass, ChatGPT (Pro), September 27, 2026
- Stop It AgreeingMake it argue against you firstPass, ChatGPT (Pro), September 27, 2026
- Explain It Like I Own ItFor the builder who did not write the codePartial, ChatGPT (Pro), September 27, 2026
- Cold HandoffBrief the next session so it does not start overPass, ChatGPT (Pro), September 27, 2026
Ship
- Define Done“It runs” is not donePartial, ChatGPT (Pro), September 27, 2026; Fail, Claude.ai (Fable 5.1 Max), September 27, 2026
- Show Your Work“Implemented” is not proofPass, ChatGPT (Pro), September 27, 2026
- Hunt RegressionsMake it hunt for its own mistakesPass, ChatGPT (Pro), September 27, 2026
- Build ReceiptMake it write down what it actually didPartial, ChatGPT (Pro), September 27, 2026
Audit
- The Titan AuditGrade your app against 28 giantsPartial, ChatGPT (Pro), September 27, 2026; Partial, Claude.ai (Fable 5.1 Max), September 27, 2026
- Dependency InterrogationEvery add-on answers three questionsPartial, ChatGPT (Pro), September 27, 2026