chore: import upstream snapshot with attribution

2026-07-13 12:28:05 +08:00
commit 41cb1c0170
1830 changed files with 38276124 additions and 0 deletions
@@ -0,0 +1,47 @@
+/* JSON-RPC client — speaks the same protocol as MCP clients via POST /rpc */
+
+let _nextId = 1;
+
+export class RpcError extends Error {
+  constructor(
+    public code: number,
+    message: string,
+  ) {
+    super(message);
+    this.name = "RpcError";
+  }
+}
+
+export async function callTool<T = unknown>(
+  name: string,
+  args: Record<string, unknown> = {},
+): Promise<T> {
+  const res = await fetch("/rpc", {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      jsonrpc: "2.0",
+      id: _nextId++,
+      method: "tools/call",
+      params: { name, arguments: args },
+    }),
+  });
+
+  if (!res.ok) {
+    throw new RpcError(-1, `HTTP ${res.status}: ${res.statusText}`);
+  }
+
+  const json = await res.json();
+
+  if (json.error) {
+    throw new RpcError(json.error.code ?? -1, json.error.message ?? "unknown");
+  }
+
+  /* MCP tool results are wrapped: { result: { content: [{ text: "..." }] } } */
+  const text = json?.result?.content?.[0]?.text;
+  if (text === undefined) {
+    return json.result as T;
+  }
+
+  return JSON.parse(text) as T;
+}