stab at SMTLIB REL mcp server

src/api/mcp/z3mcp.ts

@@ -0,0 +1,62 @@
+import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
+import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
+
+async function importZ3() {
+    try {
+        const z3 = await import("z3-solver");
+        return await z3.init();
+    } catch (e) {
+        console.error("Failed to import z3-solver:", e?.message);
+        return undefined;
+    }
+}
+
+async function Z3Run(input) {
+    const z3p = await importZ3();
+    if (!z3p) {
+        return "Z3 not available. Make sure to install the https://www.npmjs.com/package/z3-solver package.";
+    }
+    const { Z3 } = z3p;
+    const cfg = Z3.mk_config();
+    const ctx = Z3.mk_context(cfg);
+    Z3.del_config(cfg);
+    const timeout = 10000;
+    Z3.global_param_set("timeout", String(timeout));
+    let output = "";
+    let error = "";
+    const timeStart = Date.now();
+    try {
+        output = (await Z3.eval_smtlib2_string(ctx, input)) ?? "";
+    } catch (e) {
+        error = e.message ?? "Error message is empty";
+    } finally {
+        Z3.del_context(ctx);
+    }
+    if (/unknown/.test(output)) {
+        const timeEnd = Date.now();
+        if (timeEnd - timeStart >= timeout) {
+            output = output + "\nZ3 timeout\n";
+        }
+    }
+    if (!error) return output;
+    else return `error: ${error}\n\n${output || ""}`;
+}
+
+
+
+const server = new McpServer({
+    name: "z3",
+    version: "1.0.0"
+});
+
+server.tool(
+    "eval",
+    { command: { type: "string", description: "smtlib2 command" } },
+    async ({ command }) => {
+        const result = await Z3Run(command);
+        return { content: [{ type: "text", text: result }] };
+    }
+);
+
+const transport = new StdioServerTransport();
+await server.connect(transport);