Tool-Nutzung: tool_choice pro Agent konfigurierbar (default: any), wiederholte Instruktionen im System-Prompt, MaxIterations in appsettings

Services/DatabaseService.cs

@@ -126,6 +126,7 @@ public class DatabaseService
         TryAddColumn(conn, "chains", "cache_read_tokens", "INTEGER NOT NULL DEFAULT 0");
         TryAddColumn(conn, "messages", "attachment_count", "INTEGER NOT NULL DEFAULT 0");
         TryAddColumn(conn, "messages", "attachment_names", "TEXT");
+        TryAddColumn(conn, "agents", "tool_choice", "TEXT DEFAULT 'any'");
     }
 
     private void TryAddColumn(SqliteConnection conn, string table, string column, string type)
@@ -144,8 +145,8 @@ public class DatabaseService
         agent.CreatedAt = now;
         agent.UpdatedAt = now;
         await conn.ExecuteAsync(@"
-            INSERT INTO agents (agent_id, name, avatar, description, model, persona, instructions, is_deleted, created_at, updated_at)
-            VALUES (@AgentId, @Name, @Avatar, @Description, @Model, @Persona, @Instructions, 0, @CreatedAt, @UpdatedAt)
+            INSERT INTO agents (agent_id, name, avatar, description, model, persona, instructions, tool_choice, is_deleted, created_at, updated_at)
+            VALUES (@AgentId, @Name, @Avatar, @Description, @Model, @Persona, @Instructions, @ToolChoice, 0, @CreatedAt, @UpdatedAt)
         ", agent);
         return agent;
     }
@@ -170,7 +171,7 @@ public class DatabaseService
         agent.UpdatedAt = DateTime.UtcNow.ToString("o");
         await conn.ExecuteAsync(@"
             UPDATE agents SET name = @Name, avatar = @Avatar, description = @Description,
-                model = @Model, persona = @Persona, instructions = @Instructions, updated_at = @UpdatedAt
+                model = @Model, persona = @Persona, instructions = @Instructions, tool_choice = @ToolChoice, updated_at = @UpdatedAt
             WHERE agent_id = @AgentId
         ", agent);
     }