Enum Event 

pub enum Event {
    Notify,
    Done,
    Idle,
    Working,
    Unknown(String),
}

Lifecycle state the producing hook reported for a session.

On the wire this is a plain JSON string — the four known values (notify, done, working, idle) round-trip through their named variants, and anything else is preserved verbatim in Unknown(String) so new hook event types added by future agents don’t break older binaries. The variant order matches the switcher’s display priority (most-attention-needing first): Notify, Done, Idle, Working, Unknown.

Variants

Notify

Agent explicitly signals the user (Claude Code Notification / PermissionRequest, pi before_user_input analogues).

Done

Agent just finished a turn (Claude Code Stop, pi agent_end).

Idle

Session is alive but not interacting (Claude Code SessionStart placeholder, pi session_start).

Working

Agent is in the middle of working — typing, calling tools (Claude Code UserPromptSubmit / PreToolUse, pi before_agent_start / tool_execution_start).

Unknown(String)

Forward-compat: a hook reported an event string we don’t recognize. Kept verbatim so re-serialization is lossless.

Implementations

impl Event

pub fn as_str(&self) -> &str

Borrow this event as the wire string the hooks use.

pub fn needs_attention(&self) -> bool

Whether this event represents a session asking for the user’s eyes right now. Notify is an explicit “blocked on you” signal; Done is the just-finished state the next prompt will move on from. Any future / unknown event value is treated as attention-worthy so a new hook type added by an agent does not silently disappear from the tmux indicator. Working and Idle are alive-but-not-asking.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Eq for Event

impl From<&str> for Event

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for Event

fn from(s: String) -> Self

Converts to this type from the input type.

impl Hash for Event

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Event

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Event

fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Event