Hook execution results now record a distinct hook_did_not_run failure reason, with an explicit stderr-inclusive message, when a PreToolUse or other hook's script process never actually ran. This is separate from a generic nonzero exit code or JSON-validation failure, making it clearer why a hook had no effect.
Hook execution now distinguishes 'did not run' from other failures
Hook results now say specifically when the hook's process never ran, separate from a bad exit code or invalid JSON.
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
HooksArea: what it touches
ImprovementsKind: in v2.1.257,
ImprovementsSection of the release