Struct ToolPostContext 

pub struct ToolPostContext {
    pub turn: usize,
    pub tool: String,
    pub result_hash: Option<u64>,
    pub is_error: bool,
    pub duration: Duration,
}

Context for LoopObserver::on_tool_post.

Sent after a tool completes, providing the tool name, a hash of the output, whether an error occurred, and the execution duration.

Fields

turn: usize

Turn number.

Identifies which turn this tool result belongs to.

tool: String

Tool name.

Matches the name the tool was registered under.

result_hash: Option<u64>

Deterministic hash of the tool output, if available.

Used by loop detection to identify repeated tool results without exposing the full output content.

is_error: bool

Whether the tool returned an error.

true when the tool execution resulted in an error response rather than a successful output.

duration: Duration

Wall-clock execution duration.

Measured from tool dispatch to completion, including any permission prompts.

Trait Implementations

impl Clone for ToolPostContext

fn clone(&self) -> ToolPostContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolPostContext

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

Formats the value using the given formatter.