Struct WorkflowTracker 

pub struct WorkflowTracker { /* private fields */ }

Aggregates cost, token, and duration metrics for a named workflow.

Create one tracker per workflow run with WorkflowTracker::new, record each step with record_shell or record_agent, then call summary to emit a structured log line.

Implementations

impl WorkflowTracker

pub fn new(name: &str) -> Self

Create a new tracker for a workflow with the given name.

The wall-clock timer starts immediately.

pub fn max_steps(self, limit: usize) -> Self

Set the maximum number of steps to retain.

When exceeded, the oldest step is removed. Defaults to 10 000.

pub fn record_shell(&mut self, name: &str, output: &ShellOutput)

Record a completed shell step.

Extracts the duration from the ShellOutput. Shell steps have no associated cost or token counts.

pub fn record_http(&mut self, name: &str, output: &HttpOutput)

Record a completed HTTP step.

Extracts the duration from the HttpOutput. HTTP steps have no associated cost or token counts.

pub fn record_agent(&mut self, name: &str, result: &AgentResult)

Record a completed agent step.

Extracts duration, cost, and token counts from the AgentResult.

pub fn total_cost_usd(&self) -> f64

Return the sum of all agent step costs in USD.

Steps that did not report a cost (including all shell steps) are skipped.

pub fn total_input_tokens(&self) -> u64

Return the sum of all input tokens across agent steps.

pub fn total_output_tokens(&self) -> u64

Return the sum of all output tokens across agent steps.

pub fn total_duration_ms(&self) -> u64

Return the wall-clock duration since the tracker was created, in milliseconds.

pub fn step_count(&self) -> usize

Return the number of recorded steps (shell + agent).

pub fn summary(&self)

Emit a structured log summary of the entire workflow and each step.

Uses tracing::info! to log one line for the workflow totals and one line per step with its kind, duration, cost, and token counts.