feat(skills): add develop workflow

scripts/pi-links.test.mjs

@@ -250,6 +250,31 @@ test("normal exposure and package evidence retain the Slice 0 security boundary"
     {},
     "published extensions must not be re-exposed as development symlinks",
   );
+  assert.deepEqual(
+    links.extensions.globalLocalPackages,
+    {},
+    "the legacy workflow extension must remain unexposed",
+  );
+
+  const exposureRoot = await mkdtemp(
+    path.join(os.tmpdir(), "develop-workflow-exposure-test-"),
+  );
+  const exposurePlan = await buildPlan({
+    repoRoot: repositoryRoot,
+    homeDir: path.join(exposureRoot, "home"),
+    agentDir: path.join(exposureRoot, "home", ".pi", "agent"),
+    globalSkillsDir: path.join(exposureRoot, "home", ".agents", "skills"),
+    settingsFile: path.join(exposureRoot, "home", ".pi", "agent", "settings.json"),
+  });
+  assert.ok(
+    exposurePlan.operations.some(
+      (operation) =>
+        operation.type === "create-link" &&
+        operation.link.name === "develop-workflow" &&
+        operation.link.scope === "global",
+    ),
+    "develop-workflow must be discovered as a shared global skill",
+  );
 
   const lock = JSON.parse(
     await readFile(