diff --git a/mcp-server/src/legal_mcp/services/block_writer.py b/mcp-server/src/legal_mcp/services/block_writer.py
index 6ad63fd..ce6ac5c 100644
--- a/mcp-server/src/legal_mcp/services/block_writer.py
+++ b/mcp-server/src/legal_mcp/services/block_writer.py
@@ -410,7 +410,7 @@ async def write_block(
     # Call Claude via Claude Code session (no API)
     model_key = block_cfg["model"]
     timeout = claude_session.LONG_TIMEOUT if model_key == "opus" else claude_session.DEFAULT_TIMEOUT
-    content = await claude_session.query(prompt, timeout=timeout)
+    content = await claude_session.query(prompt, timeout=timeout, tools="")  # prose gen — no tool_use → no error_max_turns
 
     sources = await _collect_block_sources(case_id, block_id)
     sources["case_law_ids"] = _precedent_case_law_ids
diff --git a/mcp-server/src/legal_mcp/services/style_analyzer.py b/mcp-server/src/legal_mcp/services/style_analyzer.py
index 810b0b1..c394b86 100644
--- a/mcp-server/src/legal_mcp/services/style_analyzer.py
+++ b/mcp-server/src/legal_mcp/services/style_analyzer.py
@@ -166,6 +166,7 @@ async def _analyze_single_pass(rows, appeal_subtype: str = "") -> dict:
     raw = await claude_session.query(
         ANALYSIS_PROMPT.format(decisions=decisions_text),
         timeout=claude_session.LONG_TIMEOUT,
+        tools="",  # text→JSON style analysis — no tool_use → no error_max_turns
     )
 
     return await _parse_and_store_patterns(raw, len(rows), appeal_subtype)
@@ -183,6 +184,7 @@ async def _analyze_multi_pass(rows, appeal_subtype: str = "") -> dict:
         raw = await claude_session.query(
             SINGLE_DECISION_PROMPT.format(decision=decision_text),
             timeout=claude_session.LONG_TIMEOUT,
+            tools="",  # text→JSON style analysis — no tool_use → no error_max_turns
         )
 
         patterns = _extract_json(raw)
@@ -199,6 +201,7 @@ async def _analyze_multi_pass(rows, appeal_subtype: str = "") -> dict:
             patterns=json.dumps(all_patterns, ensure_ascii=False, indent=2),
         ),
         timeout=claude_session.LONG_TIMEOUT,
+        tools="",  # text→JSON style analysis — no tool_use → no error_max_turns
     )
 
     return await _parse_and_store_patterns(raw, len(rows), appeal_subtype)