Module explain 

Trace explanation and visualization

Stable facade for the Wave4 Step3 split. Public symbols remain under crate::explain::* while implementation lives in explain_next/*.

Structs

ExplainedStep

A single step in the explained trace

RuleEvaluation

ToolCall

Tool call input for explanation

TraceExplainer

Trace explainer

TraceExplanation

Complete explanation of a trace

Enums

StepVerdict