| ActivationStrategyInterface | Interface for activation strategies for the FingersCrossedHandler. |
| ChannelLevelActivationStrategy | Channel and Error level based monolog activation strategy. Allows to trigger activation based on level per channel. e.g. trigger activation on level 'ERROR' by default, except for records of the 'sql' channel; those should trigger activation on level 'WARN'. |
| ErrorLevelActivationStrategy | Error level based activation strategy. |