fix: correct workspace truncation warning

tests/test_workspace_artifact.py

@@ -0,0 +1,23 @@
+import logging
+
+from utils.attachments import AttachmentStore
+from workflow.hooks.workspace_artifact import WorkspaceArtifactHook
+
+
+def test_snapshot_logs_counts_when_scan_is_truncated(tmp_path, caplog):
+    workspace = tmp_path / "workspace"
+    workspace.mkdir()
+    (workspace / "artifact.txt").write_text("payload", encoding="utf-8")
+
+    hook = WorkspaceArtifactHook(
+        attachment_store=AttachmentStore(tmp_path / "attachments"),
+        emit_callback=lambda _: None,
+        max_files_scanned=1,
+    )
+
+    with caplog.at_level(logging.WARNING, logger=hook.logger.name):
+        snapshot, truncated = hook._snapshot(workspace)
+
+    assert truncated is True
+    assert set(snapshot) == {"artifact.txt"}
+    assert caplog.messages == ["Workspace scan truncated (files=1 total_bytes=7)"]

workflow/hooks/workspace_artifact.py

@@ -204,7 +204,7 @@ def _snapshot(self, workspace: Path) -> Tuple[Dict[str, _FileSignature], bool]:
                 entries[str(rel_path)] = _FileSignature(sha256=sha256, size=stat.st_size)
                 if file_count >= self.max_files_scanned or total_bytes >= self.max_bytes_scanned:
                     self.logger.warning(
-                        "Workspace scan truncated (files=%s total_bytes=%s) for session %s",
+                        "Workspace scan truncated (files=%s total_bytes=%s)",
                         file_count,
                         total_bytes,
                     )