chore: import upstream snapshot with attribution

scripts/agent-eval/probe-node.mjs

@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+// Probe codegraph_node (with trail) against an index using the built dist.
+// Usage: node probe-node.mjs <repo-with-.codegraph> <symbol> [code]
+import { pathToFileURL } from 'node:url';
+import { resolve } from 'node:path';
+
+const [, , repo, symbol, code] = process.argv;
+if (!repo || !symbol) { console.error('usage: probe-node.mjs <repo> <symbol> [code]'); process.exit(1); }
+
+const load = async (rel) => import(pathToFileURL(resolve(rel)).href);
+const idx = await load('dist/index.js');
+const tools = await load('dist/mcp/tools.js');
+const CodeGraph = idx.default?.default ?? idx.default ?? idx.CodeGraph;
+const ToolHandler = tools.ToolHandler ?? tools.default?.ToolHandler;
+
+const cg = CodeGraph.openSync(repo);
+const h = new ToolHandler(cg);
+const res = await h.execute('codegraph_node', { symbol, includeCode: code === 'code' });
+console.log(res.content?.[0]?.text ?? '(no text)');
+try { cg.close?.(); } catch {}