Diagnostic codes: rule-needs-capture: An isolate rule names a part whose pattern captures nothing, so it has only one instance. # rule-needs-capture > An isolate rule names a part whose pattern captures nothing, so it has only one instance. Config problems. This text is what `archangel docs rule-needs-capture` prints. An isolate rule names a part whose pattern captures nothing, so it has only one instance. ## Example ```ts // elements: { shared: 'src/shared/**' } isolate('shared') ``` ## What to do Give the part a capture, such as `src/features/{feature}/**`, or remove the rule.