fix(plugins): fast-path strict manifest json

src/plugins/manifest.json5-tolerance.test.ts

@@ -1,6 +1,7 @@
 import fs from "node:fs";
 import path from "node:path";
-import { afterEach, describe, expect, it } from "vitest";
+import JSON5 from "json5";
+import { afterEach, describe, expect, it, vi } from "vitest";
 import { loadPluginManifest, MAX_PLUGIN_MANIFEST_BYTES } from "./manifest.js";
 import { cleanupTrackedTempDirs, makeTrackedTempDir } from "./test-helpers/fs-fixtures.js";
 
@@ -11,6 +12,7 @@ function makeTempDir() {
 }
 
 afterEach(() => {
+  vi.restoreAllMocks();
   cleanupTrackedTempDirs(tempDirs);
 });
 
@@ -33,6 +35,24 @@ describe("loadPluginManifest JSON5 tolerance", () => {
     }
   });
 
+  it("uses native JSON parsing for standard JSON manifests", () => {
+    const json5Parse = vi.spyOn(JSON5, "parse");
+    const dir = makeTempDir();
+    fs.writeFileSync(
+      path.join(dir, "openclaw.plugin.json"),
+      JSON.stringify({
+        id: "strict-json",
+        configSchema: { type: "object" },
+      }),
+      "utf-8",
+    );
+
+    const result = loadPluginManifest(dir, false);
+
+    expect(result.ok).toBe(true);
+    expect(json5Parse).not.toHaveBeenCalled();
+  });
+
   it("parses a manifest with trailing commas", () => {
     const dir = makeTempDir();
     const json5Content = `{

src/plugins/manifest.ts

@@ -1,6 +1,5 @@
 import fs from "node:fs";
 import path from "node:path";
-import JSON5 from "json5";
 import type { ChannelConfigRuntimeSchema } from "../channels/plugins/types.config.js";
 import { MANIFEST_KEY } from "../compat/legacy-names.js";
 import { matchBoundaryFileOpenFailure, openBoundaryFileSync } from "../infra/boundary-file-read.js";
@@ -23,6 +22,7 @@ import type { JsonSchemaObject } from "../shared/json-schema.types.js";
 import { normalizeOptionalString } from "../shared/string-coerce.js";
 import { normalizeTrimmedStringList } from "../shared/string-normalization.js";
 import { isRecord } from "../utils.js";
+import { parseJsonWithJson5Fallback } from "../utils/parse-json-compat.js";
 import {
   normalizeManifestCommandAliases,
   type PluginManifestCommandAlias,
@@ -1178,7 +1178,7 @@ export function loadPluginManifest(
   }
   let raw: unknown;
   try {
-    raw = JSON5.parse(fs.readFileSync(opened.fd, "utf-8"));
+    raw = parseJsonWithJson5Fallback(fs.readFileSync(opened.fd, "utf-8"));
   } catch (err) {
     return {
       ok: false,