fix(codex): let plugin remove take the same spec plugin add and list use

server/__tests__/codex-cli.test.js

@@ -52,7 +52,8 @@ describe("codex-cli argument validation", () => {
   it("refuses a name that could be read as a flag or a path", async () => {
     await assert.rejects(() => cli.mcpRemove("--force"), /name/i);
     await assert.rejects(() => cli.mcpRemove("../../etc"), /name/i);
-    await assert.rejects(() => cli.pluginRemove("--force"), /name/i);
+    await assert.rejects(() => cli.pluginRemove("--force"), /spec/i);
+    await assert.rejects(() => cli.pluginRemove("../../etc"), /spec/i);
     await assert.rejects(() => cli.marketplaceRemove("--force"), /name/i);
     await assert.rejects(() => cli.mcpAdd({ name: "--force", command: "node" }), /name/i);
   });
@@ -178,6 +179,9 @@ describe("codex-cli argv construction", () => {
       assert.deepEqual(argvOf(await cli.pluginList()), ["plugin", "list", "--json"]);
       assert.deepEqual(argvOf(await cli.pluginAdd("demo@sg")), ["plugin", "add", "demo@sg"]);
       assert.deepEqual(argvOf(await cli.pluginRemove("demo")), ["plugin", "remove", "demo"]);
+      // `plugin list` reports marketplace-scoped plugins as `<name>@<marketplace>`,
+      // and `plugin add` takes that form — so remove has to accept it back.
+      assert.deepEqual(argvOf(await cli.pluginRemove("demo@sg")), ["plugin", "remove", "demo@sg"]);
     } finally {
       restore();
     }

server/lib/codex-cli.js

@@ -239,9 +239,12 @@ async function pluginAdd(spec) {
   return serialize(() => runCodex(["plugin", "add", s]));
 }
 
-async function pluginRemove(name) {
-  const n = assertName(name);
-  return serialize(() => runCodex(["plugin", "remove", n]));
+async function pluginRemove(spec) {
+  // A spec, not a bare name: `plugin add` accepts `<name>@<marketplace>`, so
+  // `plugin remove` has to accept back what `plugin list` hands out.
+  // cc-plugin-cli.js validates every plugin verb the same way.
+  const s = assertPluginSpec(spec);
+  return serialize(() => runCodex(["plugin", "remove", s]));
 }
 
 // ── Marketplaces ───────────────────────────────────────────────────────