prompt.missing_input_schema

What it checks

Crux emits this finding when a prompt definition is visible in the Project Index but has no inspectable input schema.

Why it matters

Prompt input schemas are the TypeScript contract for prompt calls, composed contexts, replay, eval cases, and devtools inspection.

How to fix

Declare the prompt input with Zod or another schema shape Crux can project into JSON Schema.

When to suppress

Suppress only when the prompt is intentionally static or validated by another typed boundary:

// crux-lint-disable-next-line prompt.missing_input_schema -- static prompt validated by caller

Rule metadata

• Rule id: prompt.missing_input_schema
• Category: contracts
• Maturity: stable
• Default profiles: recommended, strict
• Default severity: info