Struct SubagentLineage 

pub struct SubagentLineage {
    pub child_agent_id: String,
    pub parent_session_id: Option<String>,
    pub parent_tool_use_id: String,
    pub depth: usize,
    pub agent_type: Option<String>,
    pub task: String,
    pub background: bool,
    pub spawned_at_ms: i64,
    pub model: String,
}

Typed, lossless NATIVE-WRITE lineage record for a spawned child (§1.13; §5.2 P5 row 3: “native write side — store already parses CC sidechains + CX lineage on import”). Field names deliberately mirror the keys the IMPORT-side loaders already populate on crate::session::SessionMeta::parent_tool_use_id/ crate::session::SessionMeta::lineage (see Self::to_lineage_map), so a natively-spawned session and an imported CC/CX one land in the same shape rather than two parallel formats a translator would need to know about separately.

Fields

child_agent_id: String

This child’s own agent id (the native analog of CC’s agentId).

parent_session_id: Option<String>

The parent session’s store name/id, if the parent is itself a stored session.

parent_tool_use_id: String

The tool_use_id of the parent’s spawn_subagent call that created this child — the native analog of CC’s recovered parent_tool_use_id.

depth: usize

How deep in the spawn tree this child is (parent’s own depth + 1; a top-level agent is depth 0).

agent_type: Option<String>

The named capabilities.subagents.agents.<name> type spawned, if any (None for an ad-hoc inline system_prompt spawn).

task: String

The task/prompt text the child was spawned with.

background: bool

Whether this child was spawned in background mode.

spawned_at_ms: i64

Unix-ms wall-clock time the spawn happened.

model: String

The model the child ran.

Implementations

impl SubagentLineage

pub fn to_lineage_map(&self) -> BTreeMap<String, String>

The crate::session::SessionMeta::lineage map a native-spawned child’s crate::session::Session carries. parent_thread_id is the SAME key crate::session::Session::reconstruct_tree’s Codex-lineage nesting step already reads (see that function’s doc comment) — reusing it rather than minting a new key means a native-spawned child nests under its parent via the identical mechanism an imported Codex thread-tree does.

Trait Implementations

impl Clone for SubagentLineage

fn clone(&self) -> SubagentLineage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SubagentLineage

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SubagentLineage

fn deserialize<__D>( __deserializer: __D, ) -> Result<SubagentLineage, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for SubagentLineage

fn eq(&self, other: &SubagentLineage) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for SubagentLineage

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SubagentLineage