Type Alias SchemaValidatorOptions

Which field on the Command to validate. Default: 'target'.

• 'target' — validate cmd.target
• 'payload' — validate cmd.payload
• 'both' — validate { target, payload } as a single object
• (cmd) => unknown — extract a custom value from cmd

What to do on validation failure:

• 'reject' (default) — return { ok: false, error: BusError(VC_VALIDATION_FAILED) } without invoking the handler
• 'warn' — console.warn and continue to the handler with the original (un-coerced) command

Even in 'warn' mode, the schema's .parse() coercions are NOT applied — the original command flows through unchanged. To use coerced values, use 'reject' mode and validate before dispatching.