# Hooks Other modules may register operations to execute when a certain event has occurred within staking. These events can be registered to execute either right `Before` or `After` the staking event (as per the hook name). The following hooks can registered with staking: * `AfterValidatorCreated(Context, ValAddress) error` * called when a validator is created * `BeforeValidatorModified(Context, ValAddress) error` * called when a validator's state is changed * `AfterValidatorRemoved(Context, ConsAddress, ValAddress) error` * called when a validator is deleted * `AfterValidatorBonded(Context, ConsAddress, ValAddress) error` * called when a validator is bonded * `AfterValidatorBeginUnbonding(Context, ConsAddress, ValAddress) error` * called when a validator begins unbonding * `BeforeDelegationCreated(Context, AccAddress, ValAddress) error` * called when a delegation is created * `BeforeDelegationSharesModified(Context, AccAddress, ValAddress) error` * called when a delegation's shares are modified * `AfterDelegationModified(Context, AccAddress, ValAddress) error` * called when a delegation is created or modified * `BeforeDelegationRemoved(Context, AccAddress, ValAddress) error` * called when a delegation is removed --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.metanovaverse.com/protocol-developers/modules/staking/hooks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.