ACP: revert acpx-plugin package naming (#52456)

* ACP: revert acpx-plugin package naming

* Test: format acp install hints expectations

docs/tools/acp-agents.md

@@ -510,7 +510,7 @@ See [Configuration Reference](/gateway/configuration-reference).
 Install and enable plugin:
 
 ```bash
-openclaw plugins install @openclaw/acpx-plugin
+openclaw plugins install acpx
 openclaw config set plugins.entries.acpx.enabled true
 ```
 
@@ -528,7 +528,7 @@ Then verify backend health:
 
 ### acpx command and version configuration
 
-By default, the acpx backend plugin package (`@openclaw/acpx-plugin`) uses the plugin-local pinned binary:
+By default, the bundled acpx backend plugin (`acpx`) uses the plugin-local pinned binary:
 
 1. Command defaults to `extensions/acpx/node_modules/.bin/acpx`.
 2. Expected version defaults to the extension pin.

extensions/acpx/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@openclaw/acpx-plugin",
+  "name": "@openclaw/acpx",
   "version": "2026.3.22",
   "description": "OpenClaw ACP runtime backend via acpx",
   "type": "module",

extensions/acpx/skills/acp-router/SKILL.md

@@ -109,7 +109,7 @@ Do not default to subagent runtime for these requests.
 
 ## ACPX install and version policy (direct acpx path)
 
-For this repo, direct `acpx` calls must follow the same pinned policy as the `@openclaw/acpx-plugin` extension package.
+For this repo, direct `acpx` calls must follow the same pinned policy as the `@openclaw/acpx` extension package.
 
 1. Prefer plugin-local binary, not global PATH:
    - `./extensions/acpx/node_modules/.bin/acpx`

src/auto-reply/reply/commands-acp/install-hints.test.ts

@@ -21,11 +21,9 @@ afterEach(() => {
 describe("ACP install hints", () => {
   it("prefers explicit runtime install command", () => {
     const cfg = withAcpConfig({
-      runtime: { installCommand: "pnpm openclaw plugins install @openclaw/acpx-plugin" },
+      runtime: { installCommand: "pnpm openclaw plugins install acpx" },
     });
-    expect(resolveAcpInstallCommandHint(cfg)).toBe(
-      "pnpm openclaw plugins install @openclaw/acpx-plugin",
-    );
+    expect(resolveAcpInstallCommandHint(cfg)).toBe("pnpm openclaw plugins install acpx");
   });
 
   it("uses local acpx extension path when present", () => {
@@ -46,9 +44,7 @@ describe("ACP install hints", () => {
     vi.spyOn(process, "cwd").mockReturnValue(tempRoot);
 
     const cfg = withAcpConfig({ backend: "acpx" });
-    expect(resolveAcpInstallCommandHint(cfg)).toBe(
-      "openclaw plugins install @openclaw/acpx-plugin",
-    );
+    expect(resolveAcpInstallCommandHint(cfg)).toBe("openclaw plugins install acpx");
   });
 
   it("returns generic plugin hint for non-acpx backend", () => {

src/auto-reply/reply/commands-acp/install-hints.ts

@@ -17,7 +17,7 @@ export function resolveAcpInstallCommandHint(cfg: OpenClawConfig): string {
     if (existsSync(localPath)) {
       return `openclaw plugins install ${localPath}`;
     }
-    return "openclaw plugins install @openclaw/acpx-plugin";
+    return "openclaw plugins install acpx";
   }
   return `Install and enable the plugin that provides ACP backend "${backendId}".`;
 }

src/plugins/copy-bundled-plugin-metadata.test.ts

@@ -51,7 +51,7 @@ describe("copyBundledPluginMetadata", () => {
       skills: ["./skills"],
     });
     writeJson(path.join(pluginDir, "package.json"), {
-      name: "@openclaw/acpx-plugin",
+      name: "@openclaw/acpx",
       openclaw: { extensions: ["./index.ts"] },
     });