feat: mentor skill

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tools/test/mentor.test.mjs

@@ -0,0 +1,31 @@
+import { test } from "node:test";
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const root = join(dirname(fileURLToPath(import.meta.url)), "..", "..");
+const skill = readFileSync(join(root, "mentor", "SKILL.md"), "utf8");
+const catalog = JSON.parse(readFileSync(join(root, "course", "catalog.json"), "utf8"));
+const entries = Array.isArray(catalog) ? catalog : catalog.entries ?? Object.values(catalog);
+
+test("mentor_skill_frontmatter_has_name_and_description", () => {
+  const m = /^---\n([\s\S]*?)\n---\n/.exec(skill);
+  assert.ok(m, "frontmatter present");
+  assert.match(m[1], /^name: systemic-design-mentor$/m);
+  assert.match(m[1], /^description: \S.{40,}/m);
+});
+
+test("mentor_skill_names_no_module_specific_cards", () => {
+  const META = new Set(["TEXT", "ALL", "EMPTY"]);
+  const names = entries
+    .filter((e) => e.kind === "card" || (e.kind === "word" && e.role === "noun" && !META.has(e.name)))
+    .map((e) => ({ name: e.name, flags: e.kind === "card" ? "i" : "" })) // noun words are ALL CAPS; "Baba Is You" the title is fine
+    .filter((n) => n.name.length >= 2);
+  assert.ok(names.length > 10, "catalog has names to check");
+  const esc = (s) => s.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+  const hits = names
+    .filter((n) => new RegExp(`(?<![A-Za-z0-9_])${esc(n.name)}(?![A-Za-z0-9_])`, n.flags).test(skill))
+    .map((n) => n.name);
+  assert.deepEqual(hits, []);
+});