THE JEV DECISION LIBRARY

Small questions.
Useful decisions.

Find a use case. Copy the prompt and code.
Put Jev to work in your application.

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9 decisions

Prompts + sample input + code
RoutingChoice

Route a support request

Send each message to the right handler, with an explicit fallback.

THE QUESTION

Which support team should handle this message? Choose other when the request does not fit a listed team.

Adapted example
RoutingChoice

Escalate uncertain classifications

Separate a predicted label from the decision to act on it.

THE QUESTION

What action is the customer asking for? Choose unclear if the message does not establish a specific action.

Adapted example

Screen a diff for runtime bugs

Find changes worth a closer human review before inspecting every line.

THE QUESTION

Does file.patch directly support that this change likely introduces incorrect runtime behavior?

Source extraction

Keep or trim a tool result

Ask whether an older tool call and its full output still matter to the current task.

THE QUESTION · 1 OF 2

Tool call t1 (read_file) should stay in the history: knowing this call was made, with its input, still matters for what the assistant does next

Source extraction

Flag hidden side effects

Identify functions whose names and contracts hide observable changes.

THE QUESTION

Does this function change observable state in a way that is not apparent from its name or supplied contract?

Original example

Check a release note in one call

Ask independent questions about one document without resending the context.

THE QUESTION · 1 OF 2

Does this release note describe a change that can break an existing integration?

Adapted example
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