II.
HookSurface JSON
Structured · livehook-surface:claude.post-compact
PostCompact (Claude Code) json
Inspect the normalized record payload exactly as the atlas UI reads it.
{
"id": "hook-surface:claude.post-compact",
"_kind": "HookSurface",
"_file": "channels-hooks/hook-surfaces/native/claude-code-extended-hooks.yaml",
"_cluster": "channels-hooks",
"attributes": {
"eventName": "PostCompact (Claude Code)",
"displayName": "PostCompact (Claude Code)",
"kind": "native",
"originVendor": "Anthropic",
"direction": "post",
"blocking": false,
"family": "observer",
"payloadSchema": {
"type": "object",
"required": [
"hook_event_name",
"trigger"
],
"properties": {
"hook_event_name": {
"type": "string",
"const": "PostCompact"
},
"trigger": {
"type": "string",
"enum": [
"manual",
"auto"
]
}
}
},
"description": "Fires after context compaction completes. Pairs with PreCompact\n(which is blocking; this one is observer-only). Used for\ncompaction-event telemetry + downstream context refresh.\n"
},
"outgoingEdges": [],
"incomingEdges": [
{
"from": "agent-runtime-impl:claude-code.runtime@1.x",
"to": "hook-surface:claude.post-compact",
"kind": "exposes",
"attributes": {}
},
{
"from": "hook-mapping:claude-post-compact",
"to": "hook-surface:claude.post-compact",
"kind": "maps_hook",
"attributes": {}
}
]
}