| 1 | using System.Text.Json; |
| 2 | using System.Linq; |
| 3 | using ModelContextProtocol.Protocol; |
| 4 | |
| 5 | namespace CascadeIDE.Services; |
| 6 | |
| 7 | /// <summary> |
| 8 | /// Single source of truth for MCP tool definitions (name/description/schema). |
| 9 | /// Tool execution is handled separately by <see cref="IdeMcpServer"/> and ultimately <see cref="IIdeMcpActions.ExecuteCommandAsync"/>. |
| 10 | /// </summary> |
| 11 | internal static class IdeMcpToolCatalog |
| 12 | { |
| 13 | private static JsonElement Schema(object schema) => JsonSerializer.SerializeToElement(schema); |
| 14 | |
| 15 | public static List<Tool> BuildTools(bool includeDebugTools) |
| 16 | { |
| 17 | // Full list of "rich" MCP tools (typed schemas). |
| 18 | // Generated proxies are added below for all IdeCommands not covered explicitly. |
| 19 | var toolsList = IdeMcpToolCatalogFull.BuildRichTools(includeDebugTools); |
| 20 | |
| 21 | if (includeDebugTools) |
| 22 | { |
| 23 | // Debug-only tools are already included in BuildRichTools when includeDebugTools = true. |
| 24 | } |
| 25 | |
| 26 | // Auto-generated proxy tools for all IdeCommands (except those already defined above). |
| 27 | var existingNames = new HashSet<string>(toolsList.Select(t => t.Name), StringComparer.Ordinal); |
| 28 | toolsList.AddRange(BuildGeneratedProxyTools(existingNames)); |
| 29 | |
| 30 | // Make descriptions self-sufficient (agent-friendly): always include args list from schema. |
| 31 | foreach (var t in toolsList) |
| 32 | { |
| 33 | EnsurePurposePrefix(t); |
| 34 | EnsureArgsBlockInDescription(t); |
| 35 | EnsureReturnsAndExampleBlocks(t); |
| 36 | } |
| 37 | |
| 38 | return toolsList; |
| 39 | } |
| 40 | |
| 41 | public static IEnumerable<Tool> BuildGeneratedProxyTools(ISet<string> existingToolNames) |
| 42 | { |
| 43 | var type = typeof(IdeCommands); |
| 44 | foreach (var f in type.GetFields(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static)) |
| 45 | { |
| 46 | if (f.FieldType != typeof(string)) |
| 47 | continue; |
| 48 | var commandId = (string?)f.GetValue(null); |
| 49 | if (string.IsNullOrWhiteSpace(commandId)) |
| 50 | continue; |
| 51 | |
| 52 | if (!IdeMcpToolNaming.IsSupportedAutoProxyToolName(commandId)) |
| 53 | continue; |
| 54 | |
| 55 | var toolName = IdeMcpToolNaming.ToToolName(commandId); |
| 56 | if (existingToolNames.Contains(toolName)) |
| 57 | continue; |
| 58 | |
| 59 | yield return new Tool |
| 60 | { |
| 61 | Name = toolName, |
| 62 | Description = BuildProxyToolDescription(commandId), |
| 63 | InputSchema = BuildProxyToolInputSchema(commandId) |
| 64 | }; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | private static JsonElement BuildProxyToolInputSchema(string commandId) |
| 69 | { |
| 70 | if (!IdeCommandsArgs.TryGetArgs(commandId, out var args) || args.Length == 0) |
| 71 | { |
| 72 | // Keep loose schema for unknown/undocumented args. |
| 73 | return Schema(new |
| 74 | { |
| 75 | type = "object", |
| 76 | properties = new { }, |
| 77 | additionalProperties = true, |
| 78 | required = Array.Empty<string>() |
| 79 | }); |
| 80 | } |
| 81 | |
| 82 | // Build JSON schema with known properties but still allow extra keys (future-proof). |
| 83 | var props = new Dictionary<string, object>(StringComparer.Ordinal); |
| 84 | var required = new List<string>(); |
| 85 | |
| 86 | foreach (var a in args) |
| 87 | { |
| 88 | object schema; |
| 89 | if (a.IsArray) |
| 90 | { |
| 91 | schema = new |
| 92 | { |
| 93 | type = "array", |
| 94 | items = new { type = a.ItemJsonType ?? "string" } |
| 95 | }; |
| 96 | } |
| 97 | else |
| 98 | { |
| 99 | schema = new { type = a.JsonType }; |
| 100 | } |
| 101 | |
| 102 | props[a.Name] = schema; |
| 103 | if (a.Required) |
| 104 | required.Add(a.Name); |
| 105 | } |
| 106 | |
| 107 | return Schema(new |
| 108 | { |
| 109 | type = "object", |
| 110 | properties = props, |
| 111 | additionalProperties = true, |
| 112 | required = required.ToArray() |
| 113 | }); |
| 114 | } |
| 115 | |
| 116 | private static string BuildProxyToolDescription(string commandId) |
| 117 | { |
| 118 | var summaryLine = IdeCommandsDoc.TryGetSummary(commandId, out var s) && !string.IsNullOrWhiteSpace(s) |
| 119 | ? $"Назначение: {s}\n\n" |
| 120 | : ""; |
| 121 | |
| 122 | var argsBlock = BuildProxyToolArgsBlock(commandId); |
| 123 | |
| 124 | return |
| 125 | summaryLine + |
| 126 | "Прокси-обёртка над ide_execute_command.\n\n" + |
| 127 | "Эквивалент вызову:\n" + |
| 128 | $" ide_execute_command {{ command_id: \"{commandId}\", args: <твои поля> }}\n\n" + |
| 129 | argsBlock + |
| 130 | "Если не уверен(а) в полях — см. docs/MCP-PROTOCOL.md или используй ide_execute_command."; |
| 131 | } |
| 132 | |
| 133 | private static string BuildProxyToolArgsBlock(string commandId) |
| 134 | { |
| 135 | if (!IdeCommandsArgs.TryGetArgs(commandId, out var args) || args.Length == 0) |
| 136 | { |
| 137 | return |
| 138 | $"Аргументы: нет (или не задокументированы). Передавай плоский JSON object; поля будут прокинуты в args команды \"{commandId}\".\n\n"; |
| 139 | } |
| 140 | |
| 141 | static string FormatType(IdeCommandsArgs.Arg a) |
| 142 | { |
| 143 | if (a.IsArray) |
| 144 | return $"{a.ItemJsonType ?? "string"}[]"; |
| 145 | return a.JsonType; |
| 146 | } |
| 147 | |
| 148 | var lines = new List<string>(capacity: 4 + args.Length) |
| 149 | { |
| 150 | "Аргументы (плоский JSON object):" |
| 151 | }; |
| 152 | |
| 153 | foreach (var a in args) |
| 154 | { |
| 155 | var req = a.Required ? "required" : "optional"; |
| 156 | lines.Add($" - {a.Name}: {FormatType(a)} ({req})"); |
| 157 | } |
| 158 | |
| 159 | lines.Add(""); |
| 160 | return string.Join("\n", lines) + "\n"; |
| 161 | } |
| 162 | |
| 163 | private static void EnsureArgsBlockInDescription(Tool tool) |
| 164 | { |
| 165 | var d = tool.Description ?? ""; |
| 166 | if (d.Contains("\nАргументы", StringComparison.Ordinal) || d.Contains("Аргументы (", StringComparison.Ordinal)) |
| 167 | return; |
| 168 | |
| 169 | if (!TryBuildArgsBlockFromSchema(tool.InputSchema, out var argsBlock)) |
| 170 | return; |
| 171 | |
| 172 | tool.Description = (d.TrimEnd() + "\n\n" + argsBlock).TrimEnd(); |
| 173 | } |
| 174 | |
| 175 | private static void EnsurePurposePrefix(Tool tool) |
| 176 | { |
| 177 | var d = (tool.Description ?? "").Trim(); |
| 178 | if (d.Length == 0) |
| 179 | return; |
| 180 | |
| 181 | // Keep existing structured descriptions intact. |
| 182 | if (d.StartsWith("Назначение:", StringComparison.Ordinal)) |
| 183 | return; |
| 184 | |
| 185 | tool.Description = $"Назначение: {d}"; |
| 186 | } |
| 187 | |
| 188 | private static bool TryBuildArgsBlockFromSchema(JsonElement inputSchema, out string argsBlock) |
| 189 | { |
| 190 | argsBlock = ""; |
| 191 | |
| 192 | if (inputSchema.ValueKind != JsonValueKind.Object) |
| 193 | return false; |
| 194 | |
| 195 | if (!inputSchema.TryGetProperty("properties", out var props) || props.ValueKind != JsonValueKind.Object) |
| 196 | return false; |
| 197 | |
| 198 | var required = new HashSet<string>(StringComparer.Ordinal); |
| 199 | if (inputSchema.TryGetProperty("required", out var req) && req.ValueKind == JsonValueKind.Array) |
| 200 | { |
| 201 | foreach (var it in req.EnumerateArray()) |
| 202 | { |
| 203 | if (it.ValueKind == JsonValueKind.String) |
| 204 | required.Add(it.GetString()!); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | var propNames = props.EnumerateObject().Select(p => p.Name).OrderBy(n => n, StringComparer.Ordinal).ToList(); |
| 209 | |
| 210 | if (propNames.Count == 0) |
| 211 | { |
| 212 | argsBlock = "Аргументы: нет.\n"; |
| 213 | return true; |
| 214 | } |
| 215 | |
| 216 | static string GetJsonType(JsonElement schema) |
| 217 | { |
| 218 | if (schema.ValueKind != JsonValueKind.Object) |
| 219 | return "object"; |
| 220 | |
| 221 | if (schema.TryGetProperty("type", out var t) && t.ValueKind == JsonValueKind.String) |
| 222 | { |
| 223 | var type = t.GetString()!; |
| 224 | if (string.Equals(type, "array", StringComparison.Ordinal) && |
| 225 | schema.TryGetProperty("items", out var items) && items.ValueKind == JsonValueKind.Object && |
| 226 | items.TryGetProperty("type", out var it) && it.ValueKind == JsonValueKind.String) |
| 227 | { |
| 228 | return it.GetString()! + "[]"; |
| 229 | } |
| 230 | |
| 231 | return type; |
| 232 | } |
| 233 | |
| 234 | return "object"; |
| 235 | } |
| 236 | |
| 237 | var lines = new List<string>(capacity: 4 + propNames.Count) |
| 238 | { |
| 239 | "Аргументы (плоский JSON object):" |
| 240 | }; |
| 241 | |
| 242 | foreach (var name in propNames) |
| 243 | { |
| 244 | var schema = props.GetProperty(name); |
| 245 | var type = GetJsonType(schema); |
| 246 | var reqLabel = required.Contains(name) ? "required" : "optional"; |
| 247 | lines.Add($" - {name}: {type} ({reqLabel})"); |
| 248 | } |
| 249 | |
| 250 | argsBlock = string.Join("\n", lines) + "\n"; |
| 251 | return true; |
| 252 | } |
| 253 | |
| 254 | private static void EnsureReturnsAndExampleBlocks(Tool tool) |
| 255 | { |
| 256 | var d = tool.Description ?? ""; |
| 257 | |
| 258 | if (!IdeMcpToolNaming.TryToCommandId(tool.Name, out var commandId)) |
| 259 | return; |
| 260 | |
| 261 | if (!d.Contains("\nВозвращает:", StringComparison.Ordinal) && IdeCommandsContract.TryGetReturns(commandId, out var kind)) |
| 262 | { |
| 263 | var ret = kind switch |
| 264 | { |
| 265 | IdeReturnKind.Json => "json", |
| 266 | IdeReturnKind.Text => "text", |
| 267 | IdeReturnKind.None => "none", |
| 268 | _ => "unspecified" |
| 269 | }; |
| 270 | d = d.TrimEnd() + $"\n\nВозвращает: {ret}."; |
| 271 | } |
| 272 | |
| 273 | if (!d.Contains("\nExample:", StringComparison.Ordinal) && IdeCommandsContract.TryGetExample(commandId, out var ex) && !string.IsNullOrWhiteSpace(ex)) |
| 274 | { |
| 275 | d = d.TrimEnd() + "\n\nExample:\n" + ex.Trim(); |
| 276 | } |
| 277 | |
| 278 | tool.Description = d; |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | |