react-doctor/rendering-conditional-render

Change to `{items.length > 0 && <List />}` or use a ternary: `{items.length ? <List /> : null}`

Validation prompt

Confirm the detector match and collect the required evidence before deciding whether an edit is warranted.

Rule flags numericValue && <Jsx /> where the left operand is either a .length member access (items.length) or an identifier whose name ends with count, length, total, size, or num: in camelCase like userCount or upper snake like USER_COUNT. When the value is 0, React renders the literal text '0' to the DOM. Confirm the left value can actually reach zero in practice.

Evidence boundary

The diagnostic proves only that the detector’s modeled source pattern matched. It does not prove runtime impact, product intent, rendered failure, or that one remediation is correct.

Establish the environment, repository policy, exceptions, and required rendered or runtime evidence before deciding the occurrence.

Record one outcome:

• Confirmed failure: The required evidence establishes the violation.
• Rejected: A documented exception or false-positive predicate applies.
• Needs evidence: Named evidence can still be collected.
• Unavailable: Required evidence cannot be collected in this run.
• Waived with evidence: An authorized, scoped exception applies to an established failure.
• Observation: The review records an optional tradeoff without claiming a defect.

A waiver records its scope, authority, evidence, and review condition. It is not a pass or false positive.

Default severity is registry metadata. Use the occurrence’s JSON severity after repository configuration when ordering real findings.

Fix prompt

Apply this candidate correction only after the required evidence confirms the risk.

Convert to an explicit boolean check: {items.length > 0 && <List />}, {Boolean(count) && <Badge />}, or a ternary {items.length ? <List /> : null}. Only false, null, and undefined render to nothing in JSX: 0 always renders. See https://react.dev/learn/conditional-rendering#logical-and-operator-

Repository-wide copy prompt

Use this repository-wide prompt only after validating each occurrence. For one occurrence, use the guidance above.