Struct SessionMeta 

pub struct SessionMeta {

    pub session_id: String,
    pub goal: String,
    pub model: String,
    pub provider: String,
    pub created_at: String,
    pub updated_at: String,
    pub message_count: u64,
    pub status: String,
    pub tool_registry_hash: Option<String>,
    pub first_prompt: Option<String>,
    pub last_prompt: Option<String>,
    pub cost: Option<SessionCost>,
    pub preset: Option<String>,
    pub name: Option<String>,
}

Metadata for a JSONL session.

Fields

session_id: String

goal: String

model: String

provider: String

created_at: String

updated_at: String

message_count: u64

status: String

tool_registry_hash: Option<String>

BLAKE3 hash of the tool registry specs at session creation time. Used by recursive resume (g151) to refuse loading a session whose tool inventory has drifted. None for pre-g151 sessions; resume tolerates the absence with a warning rather than an abort.

first_prompt: Option<String>

First user message in this session, truncated to 200 chars (g157).

last_prompt: Option<String>

Most recent user message, truncated to 200 chars (g157).

cost: Option<SessionCost>

Cumulative token usage for this session (g156).

preset: Option<String>

Resolved provider preset id (e.g. “deepseek”) at session creation time. None for pre-preset-config sessions or when the user did not configure a preset. Optional + skipped on serialize so old session files round-trip cleanly.

name: Option<String>

Optional human-readable display name for this session, set via --name. Shown in the /resume picker and sessions list output.

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.