bxcore: ToolSummary log record; messages ignore it

Co-Authored-By: ornith-1.5-35b-a3b <agent@wntrmute.dev>

crates/loopd/tests/tool_summary_messages.rs

@@ -0,0 +1,88 @@
+//! Tests that `messages()` ignores `ToolSummary`. Do not edit.
+
+use bxcore::{CallId, DataClass, Epoch, Hash32, LogRecord, SessionId, Timestamp};
+use loopd::baseline::{Baseline, messages};
+use loopd::llama::ChatMessage;
+use loopd::llama::ToolSchema;
+
+fn ts() -> Timestamp {
+    Timestamp::parse("2026-09-18T08:00:00.000Z").unwrap()
+}
+
+fn baseline() -> Baseline {
+    Baseline {
+        system: "sys".to_string(),
+        tools: vec![ToolSchema {
+            name: "clock".to_string(),
+            description: "t".to_string(),
+            parameters: serde_json::json!({"type": "object", "properties": {}}),
+        }],
+    }
+}
+
+fn user(content: &str) -> LogRecord {
+    LogRecord::User {
+        time: ts(),
+        content: content.to_string(),
+        speaker: None,
+    }
+}
+
+fn result() -> LogRecord {
+    LogRecord::ToolResult {
+        time: ts(),
+        call: CallId(1),
+        tool_call_id: "c".to_string(),
+        content: "raw body".to_string(),
+        class: DataClass::Public,
+        untrusted: false,
+        truncated: false,
+    }
+}
+
+fn summary() -> LogRecord {
+    LogRecord::ToolSummary {
+        time: ts(),
+        call: CallId(1),
+        tool_call_id: "c".to_string(),
+        content: "a short account".to_string(),
+        class: DataClass::Public,
+        untrusted: false,
+    }
+}
+
+#[test]
+fn messages_ignore_tool_summary() {
+    let start = LogRecord::SessionStart {
+        time: ts(),
+        session: SessionId::new("a").unwrap(),
+        epoch: Epoch(0),
+        slot: 0,
+        baseline: Hash32::ZERO,
+    };
+    let without = messages(&baseline(), &[start.clone(), user("hi"), result()]);
+    let with = messages(&baseline(), &[start, user("hi"), result(), summary()]);
+    assert_eq!(without, with);
+    assert!(
+        !with
+            .iter()
+            .any(|m| matches!(m, ChatMessage::User { content } if content == "a short account")),
+        "{with:?}"
+    );
+}
+
+#[test]
+fn a_summary_is_not_replayed_as_a_tool_message() {
+    let msgs = messages(&baseline(), &[summary()]);
+    assert_eq!(msgs.len(), 1, "only the system message");
+    assert!(matches!(msgs[0], ChatMessage::System { .. }));
+}
+
+#[test]
+fn inserting_a_summary_does_not_break_prefix_extension() {
+    let a = vec![user("hi"), result()];
+    let b = vec![user("hi"), result(), summary(), user("next")];
+    let ma = messages(&baseline(), &a);
+    let mb = messages(&baseline(), &b);
+    assert_eq!(&mb[..ma.len()], &ma[..]);
+}