Documentation 2026-08-28 23:59 UTC to 2026-08-29 18:58 UTC

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29 <img src="https://mintcdn.com/claude-code/jhXrDR5TrSZ5hgXM/images/hooks-lifecycle.svg?fit=max&auto=format&n=jhXrDR5TrSZ5hgXM&q=85&s=3ca47113d5956460e6e4611b8dbc63b7" alt="Diagramme du cycle de vie des hooks montrant Setup optionnel alimentant SessionStart, puis une boucle par tour contenant UserPromptSubmit, UserPromptExpansion pour les slash commands, la boucle agentique imbriquée (PreToolUse, PermissionRequest, PostToolUse, PostToolUseFailure, PostToolBatch, SubagentStart/Stop, TaskCreated, TaskCompleted), et Stop ou StopFailure, suivis de TeammateIdle, PreCompact, PostCompact et SessionEnd, avec Elicitation et ElicitationResult imbriqués dans l'exécution de l'outil MCP, PermissionDenied comme branche latérale de PermissionRequest pour les refus en mode auto, WorktreeCreate, WorktreeRemove, Notification, ConfigChange, InstructionsLoaded, CwdChanged et FileChanged comme événements asynchrones autonomes, et MessageDisplay comme événement d'affichage uniquement qui s'exécute pendant que le texte du message de l'assistant est diffusé en continu" width="520" height="1228" data-path="images/hooks-lifecycle.svg" />29 <img src="https://mintcdn.com/claude-code/x7pO8l4XcvAXCoVc/images/hooks-lifecycle.svg?fit=max&auto=format&n=x7pO8l4XcvAXCoVc&q=85&s=81b9256c1bbe8832553485f5d9e9c746" alt="Diagramme du cycle de vie des hooks montrant Setup optionnel alimentant SessionStart, puis une boucle par tour contenant UserPromptSubmit, UserPromptExpansion pour les slash commands, la boucle agentique imbriquée (PreToolUse, PermissionRequest, PostToolUse, PostToolUseFailure, PostToolBatch, SubagentStart/Stop, TaskCreated, TaskCompleted), et Stop ou StopFailure, suivis de TeammateIdle, PreCompact, PostCompact et SessionEnd, avec Elicitation et ElicitationResult imbriqués dans l'exécution de l'outil MCP, PermissionDenied comme branche latérale de PermissionRequest pour les refus en mode auto, WorktreeCreate, WorktreeRemove, Notification, ConfigChange, InstructionsLoaded, CwdChanged et FileChanged comme événements asynchrones autonomes, et MessageDisplay comme événement d'affichage uniquement qui s'exécute pendant que le texte du message de l'assistant est diffusé en continu" width="520" height="1336" data-path="images/hooks-lifecycle.svg" />

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62| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |62| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |

63| `PreCompact` | Before context compaction |63| `PreCompact` | Before context compaction |

64| `PostCompact` | After context compaction completes |64| `PostCompact` | After context compaction completes |

65| `PreModelSwitch` | Before Claude Code applies a model switch that you or a client requested. Can block the switch |

66| `PostModelSwitch` | After the session's model changes, including changes Claude Code makes on its own, such as restoring the model when you resume a session |

65| `Elicitation` | When an MCP server requests user input during a tool call |67| `Elicitation` | When an MCP server requests user input during a tool call |

66| `ElicitationResult` | After a user responds to an MCP elicitation, before the response is sent back to the server |68| `ElicitationResult` | After a user responds to an MCP elicitation, before the response is sent back to the server |

67| `SessionEnd` | When a session terminates |69| `SessionEnd` | When a session terminates |

488| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |488| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |

489| `PreCompact` | Before context compaction |489| `PreCompact` | Before context compaction |

490| `PostCompact` | After context compaction completes |490| `PostCompact` | After context compaction completes |

491| `PreModelSwitch` | Before Claude Code applies a model switch that you or a client requested. Can block the switch |

492| `PostModelSwitch` | After the session's model changes, including changes Claude Code makes on its own, such as restoring the model when you resume a session |

491| `Elicitation` | When an MCP server requests user input during a tool call |493| `Elicitation` | When an MCP server requests user input during a tool call |

492| `ElicitationResult` | After a user responds to an MCP elicitation, before the response is sent back to the server |494| `ElicitationResult` | After a user responds to an MCP elicitation, before the response is sent back to the server |

493| `SessionEnd` | When a session terminates |495| `SessionEnd` | When a session terminates |

148| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |148| `WorktreeRemove` | When a worktree is being removed at session exit, when a subagent finishes, or when you delete a background session |

149| `PreCompact` | Before context compaction |149| `PreCompact` | Before context compaction |

150| `PostCompact` | After context compaction completes |150| `PostCompact` | After context compaction completes |

151| `PreModelSwitch` | Before Claude Code applies a model switch that you or a client requested. Can block the switch |

152| `PostModelSwitch` | After the session's model changes, including changes Claude Code makes on its own, such as restoring the model when you resume a session |

151| `Elicitation` | When an MCP server requests user input during a tool call |153| `Elicitation` | When an MCP server requests user input during a tool call |

152| `ElicitationResult` | After a user responds to an MCP elicitation, before the response is sent back to the server |154| `ElicitationResult` | After a user responds to an MCP elicitation, before the response is sent back to the server |

153| `SessionEnd` | When a session terminates |155| `SessionEnd` | When a session terminates |