refactor(cli)!: rename all skills and agents to consistent ce- prefix (#503)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/path-sanitization.test.ts

@@ -7,8 +7,15 @@ const pluginRoot = path.join(process.cwd(), "plugins", "compound-engineering")
 
 describe("sanitizePathName", () => {
   test("replaces colons with hyphens", () => {
-    expect(sanitizePathName("ce:brainstorm")).toBe("ce-brainstorm")
-    expect(sanitizePathName("ce:plan")).toBe("ce-plan")
+    expect(sanitizePathName("other:skill")).toBe("other-skill")
+    expect(sanitizePathName("other:tool")).toBe("other-tool")
+  })
+
+  test("no CE skill name contains a colon", async () => {
+    const plugin = await loadClaudePlugin(pluginRoot)
+    for (const skill of plugin.skills) {
+      expect(skill.name).not.toContain(":")
+    }
   })
 
   test("passes through names without colons", () => {