Struct SessionMeta 

pub struct SessionMeta {

    pub id: String,
    pub timestamp: String,
    pub cwd: PathBuf,
    pub originator: String,
    pub cli_version: String,
    pub source: String,
    pub forked_from_id: Option<String>,
    pub agent_nickname: Option<String>,
    pub agent_role: Option<String>,
    pub agent_path: Option<String>,
    pub model_provider: Option<String>,
    pub base_instructions: Option<BaseInstructions>,
    pub dynamic_tools: Option<Value>,
    pub memory_mode: Option<String>,
    pub git: Option<GitInfo>,
    pub extra: HashMap<String, Value>,
}

First line of every rollout file; session_meta payload.

Matches SessionMeta (+ git denormalization) from codex-rs/protocol/src/protocol.rs.

Fields

id: String

UUIDv7 session id.

timestamp: String

ISO-8601 timestamp for session creation (distinct from the outer line timestamp, which is the write time).

cwd: PathBuf

Working directory at session creation.

originator: String

Who launched Codex (codex-tui, codex-exec, IDE plugins).

cli_version: String

source: String

Entry point: cli, vscode, etc.

forked_from_id: Option<String>

Parent session if this was forked (multi-agent).

agent_nickname: Option<String>

agent_role: Option<String>

agent_path: Option<String>

model_provider: Option<String>

base_instructions: Option<BaseInstructions>

Embedded system prompt for the session. Typically large (~20 KB).

dynamic_tools: Option<Value>

memory_mode: Option<String>

git: Option<GitInfo>

Git state at session start. Populated when cwd is inside a repo.

extra: HashMap<String, Value>

Forward-compat catch-all.

Trait Implementations

impl Clone for SessionMeta

fn clone(&self) -> SessionMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionMeta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SessionMeta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SessionMeta

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

where __S: Serializer,

Serialize this value into the given Serde serializer.