huskies: merge 1186 story compact chat command: distill session context deterministically, then reset with a seed

server/src/llm/providers/claude_code/events/mod.rs

@@ -6,6 +6,7 @@ mod stream;
 mod tests;
 
 use super::parse::{parse_assistant_message, parse_tool_results};
+use crate::agents::TokenUsage;
 use crate::llm::types::Message;
 use crate::slog;
 use std::sync::atomic::{AtomicBool, Ordering};
@@ -16,6 +17,7 @@ use stream::handle_stream_event;
 /// Routes the event to the appropriate handler based on `type`, emitting tokens,
 /// thinking output, activity signals, and parsed messages to their respective channels.
 /// Returns `true` only for `"result"` events, which signal that the CLI turn is complete.
+#[allow(clippy::too_many_arguments)]
 pub(super) fn process_json_event(
     json: &serde_json::Value,
     token_tx: &tokio::sync::mpsc::UnboundedSender<String>,
@@ -23,6 +25,7 @@ pub(super) fn process_json_event(
     activity_tx: &tokio::sync::mpsc::UnboundedSender<String>,
     msg_tx: &std::sync::mpsc::Sender<Message>,
     sid_tx: &mut Option<tokio::sync::oneshot::Sender<String>>,
+    usage_tx: &mut Option<tokio::sync::oneshot::Sender<TokenUsage>>,
     auth_failed: &AtomicBool,
 ) -> bool {
     let event_type = match json.get("type").and_then(|t| t.as_str()) {
@@ -80,7 +83,14 @@ pub(super) fn process_json_event(
             }
             false
         }
-        "result" => true,
+        "result" => {
+            if let Some(tx) = usage_tx.take()
+                && let Some(usage) = TokenUsage::from_result_event(json)
+            {
+                let _ = tx.send(usage);
+            }
+            true
+        }
         // system, rate_limit_event, and unknown types are no-ops
         _ => false,
     }