II.
HookSurface overview
Reference · livehook-surface:claude.pre-compact
PreCompact (Claude) overview
Claude Code's PreCompact hook. Fires before context compaction; can block or alter compaction.
Attributes
eventName
PreCompact (Claude)
displayName
PreCompact (Claude)
kind
native
originVendor
Anthropic
direction
pre
blocking
true
family
shell-hook
description
Claude Code's PreCompact hook. Fires before context compaction;
can block or alter compaction.
Outgoing edges
canonicalized_to1
- hook-surface:pre-compact·HookSurfacePreCompact (canonical)
emits_hook1
- agentVersion:claude:ge-0-0-0·AgentVersionClaude Code
Incoming edges
exposes1
- agent-runtime-impl:claude-code.runtime@1.x·AgentRuntimeImplClaude Code Runtime (1.x)
maps_hook1
- hook-mapping:claude-pre-compact-native·HookMapping