fix: MCPCをvendored fork化しMCP準拠と接続安定性を改善

- Git submoduleを廃止してMCPCを直接管理
- Windowsで254リクエスト付近に発生する切断を修正
- JSON-RPC 2.0エラー応答を標準化
- tool schemaとruntimeの必須・任意引数を一致
- 1000回連続呼び出しの回帰テストを追加

1 files changed, 80 insertions, 0 deletions

diff --git a/third_party/mcpc/src/prmpt.h b/third_party/mcpc/src/prmpt.h
new file mode 100644
index 0000000..2199864
--- /dev/null
+++ b/third_party/mcpc/src/prmpt.h
@@ -0,0 +1,80 @@
+// This file is part of the mcpc library.
+//
+// Copyright (C) 2025 Michael Lee <micl2e2 AT proton.me>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions: 
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software. 
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef h_prmpt
+#define h_prmpt
+
+#include <mcpc/prmpt.h>
+
+typedef mcpc_anypool_t mcpc_prmptpool_t;
+typedef mcpc_anypool_t mcpc_prmptargpool_t;
+
+// ---------------------------- prmptarg ----------------------------
+
+void mcpc_prmptarg_free (mcpc_prmptarg_t * prmptarg);
+
+bool mcpc_prmptarg_is_required (const mcpc_prmptarg_t * prmptarg);
+
+mcpc_errcode_t mcpc_prmptarg_getref_name (const mcpc_prmptarg_t * prmptarg, const char8_t ** ret, size_t *ret_len);
+
+mcpc_errcode_t mcpc_prmptarg_getref_desc (const mcpc_prmptarg_t * prmptarg, const char8_t ** ret, size_t *ret_len);
+
+mcpc_errcode_t mcpc_prmptarg_get_data_type (const mcpc_prmptarg_t * prmptarg, mcpc_anytype_t * ret);
+
+mcpc_errcode_t mcpc_prmptarg_set_required (mcpc_prmptarg_t * prmptarg, bool fl);
+
+mcpc_errcode_t mcpc_prmptarg_set_nament (mcpc_prmptarg_t * prmptarg, const char8_t * name);
+
+mcpc_errcode_t mcpc_prmptarg_set_u8str (mcpc_prmptarg_t * prmptarg, const char8_t * arr, size_t arr_len);
+
+// ------------------------------ prmpt ------------------------------
+
+mcpc_errcode_t mcpc_prmpt_getref_name (const mcpc_prmpt_t * prmpt, const char8_t ** ret, size_t *ret_len);
+
+mcpc_errcode_t mcpc_prmpt_getref_desc (const mcpc_prmpt_t * prmpt, const char8_t ** ret, size_t *ret_len);
+
+void mcpc_prmpt_free (mcpc_prmpt_t * prmpt);
+
+// ---------------------------- prmptpool ----------------------------
+
+mcpc_prmptpool_t *mcpc_prmptpool_new ();
+
+void mcpc_prmptpool_free (mcpc_prmptpool_t * prmptpool);
+
+void mcpc_prmptpool_addcpy (mcpc_prmptpool_t * prmptpool, const mcpc_prmpt_t * prmpt);
+
+void mcpc_prmptpool_addfre (mcpc_prmptpool_t * prmptpool, mcpc_prmpt_t * prmpt);
+
+size_t mcpc_prmptpool_get_len (const mcpc_prmptpool_t * prmptpool);
+
+const mcpc_prmpt_t *mcpc_prmptpool_get (const mcpc_prmptpool_t * prmptpool, size_t idx);
+
+const mcpc_prmpt_t *mcpc_prmptpool_getbyname (const mcpc_prmptpool_t * prmptpool, const char8_t * name,
+					      size_t name_len);
+
+// -------------------------- prmptarghint --------------------------
+
+const mcpc_prmptarghint_t *mcpc_prmptarg_get_next_prmptarghint (const mcpc_prmptarg_t * prmptarg);
+
+mcpc_errcode_t
+mcpc_prmptarghint_getref_u8str (const mcpc_prmptarg_t * prmptarghint, const char8_t ** ret, size_t *ret_len);
+
+#endif