PromptVault
CodingProIntermediate

How coherent is this API’s error contract?

For engineers maintaining public endpoints; scores consistency using concrete handler evidence.

Works with
  • Codex
The prompt121 words · 3 blanks

Analyze the existing endpoints under an [api_style] contract for [consumer_type] over a…

The full prompt is in the app

Included with PromptVault Pro. Fill in the blanks there, then copy it into Codex.

What you fill in

  • API style[api_style]ExampleREST with JSON errors
  • Primary consumer[consumer_type]ExampleThird-party integrations
  • Compatibility horizon[compatibility_window]ExampleMultiple supported client versions

How to use it

  1. 1Open it in PromptVault. Find it in Coding, or search for “How coherent is this API’s error contract?”.
  2. 2Fill in the 3 blanks. api style, primary consumer and compatibility horizon — the only things the prompt cannot know.
  3. 3Copy and paste it into Codex. That is the tool it is written for.

About this prompt

“How coherent is this API’s error contract?” is a intermediate coding prompt. For engineers maintaining public endpoints; scores consistency using concrete handler evidence. It is 121 words long and written to get a usable answer on the first message, in Codex or any other chat assistant. Good for: analysis, api design, audit, code review and deep dive. Like every prompt in PromptVault, it was written and edited in-house, and it works offline once the app is installed.

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