fix(chat): compress-history on PostgreSQL dict rows

- Normalize select id,content rows from dict_row vs sqlite Row in history_tool_result_compact.

- Expand memory_wiki_search ToolSpec to match wiki_search parameters; add schema regression test.

Co-authored-by: Cursor <cursoragent@cursor.com>

runtime/chat/history_tool_result_compact.py

@@ -25,6 +25,13 @@ class HistoryCompactionResult:
     detail: str = ""
 
 
+def _chat_message_id_content(row: Any) -> tuple[int, str]:
+    """Normalize SQLite Row/tuple vs PostgreSQL dict_row for ``select id, content``."""
+    if isinstance(row, dict):
+        return int(row["id"]), str(row.get("content") or "")
+    return int(row[0]), str(row[1] or "")  # type: ignore[index]
+
+
 def _json_dumps_safe(obj: Any) -> str:
     try:
         return json.dumps(obj, ensure_ascii=False, default=str)
@@ -150,7 +157,8 @@ def compact_tool_results_in_session_history(
             (sid, max(1, min(int(limit_messages or 5000), 200_000))),
         )
         rows = cur.fetchall() or []
-        for mid, raw in rows:
+        for row in rows:
+            mid, raw = _chat_message_id_content(row)
             scanned += 1
             txt = str(raw or "")
             max_seen = max(max_seen, len(txt))

runtime/tools/public/memory_wiki_tools.py

@@ -99,10 +99,27 @@ def _search_tool(public_name: str, desc: str) -> ToolSpec:
         parameters={
             "type": "object",
             "properties": {
-                "query": {"type": "string"},
-                "limit": {"type": "integer"},
+                "query": {"type": "string", "description": "Search query string."},
+                "limit": {"type": "integer", "description": "Max hits per page (server caps to wiki max)."},
+                "offset": {"type": "integer", "description": "Hit offset for pagination (0-based)."},
+                "context_lines": {
+                    "type": "integer",
+                    "description": "Lines of context around each match (server caps at 5).",
+                },
                 "is_regex": {"type": "boolean"},
                 "case_sensitive": {"type": "boolean"},
+                "path_prefix": {
+                    "type": "string",
+                    "description": "Only search under this relative path prefix (e.g. users/).",
+                },
+                "expand_query": {
+                    "type": "boolean",
+                    "description": "If true, try synonym-expanded variants (ignored when is_regex is true).",
+                },
+                "max_rounds": {
+                    "type": "integer",
+                    "description": "Max expansion rounds when expand_query is true (1–5).",
+                },
             },
             "required": ["query"],
             "additionalProperties": False,