Method validate

src/specify_cli/workflows/steps/fan_in/__init__.py:53–61

(self, config: dict[str, Any])

        )

    def validate(self, config: dict[str, Any]) -> list[str]:
        errors = super().validate(config)
        wait_for = config.get("wait_for", [])
        if not isinstance(wait_for, list) or not wait_for:
            errors.append(
                f"Fan-in step {config.get('id', '?')!r}: "
                f"'wait_for' must be a non-empty list of step IDs."
            )
        return errors