OptionalagentOptionalagentOptionalagentOptionalentrypointOptionalgitOptionalisCompact summary injected by CC's auto-compact are marked isCompactSummary: true.
OptionalisTool-result-only user messages are marked isMeta: true by CC.
true when this entry belongs to a subagent's transcript rather than the main session.
CC writes subagent turns to a separate file (subagents/agent-<id>.jsonl) and marks them
isSidechain: true. Use agentId to identify which subagent this turn belongs to.
OptionallogicalRaw message payload. Use helpers from message-helpers to access typed sub-fields.
OptionalpromptOptionalrequestUsed to deduplicate assistant entries replayed after /resume.
OptionalslugOptionalteam
A user turn in the session transcript.