feat: add official Codex skill and harden task execution

Install and update artemis-use with task diagnostics and plugin guidance. Preserve cross-device file receipts, review canonical reports, guard stage transitions and reduce small history summaries. Improve exploration lifecycle, request recovery and browser live connections.

skills/artemis-use/scripts/check_plugin.py

@@ -0,0 +1,47 @@
+"""Validate a plugin package; --live checks MCP declarations without executing actions."""
+
+import argparse
+import asyncio
+import json
+from pathlib import Path
+
+from artemis.plugins.evidence import validate_tools
+from artemis.plugins.models import PluginManifest, PluginProfile
+from artemis.plugins.session import PluginSession, resolve_server
+from artemis.plugins.store import contained_path
+
+
+async def check(directory: Path, live: bool, values: dict[str, str]) -> None:
+    manifest = PluginManifest.model_validate_json((directory / "plugin.json").read_text("utf-8"))
+    manifest.check_compatible()
+    if manifest.skill:
+        skill = contained_path(directory, manifest.skill)
+        if not skill.is_file() or not skill.read_text("utf-8").strip():
+            raise ValueError("缺少有效的 Skill")
+    if manifest.schema_version != 2:
+        raise ValueError("新市场插件必须适配 schema_version=2")
+    if live and manifest.server:
+        server = resolve_server(manifest, PluginProfile(values=values), directory)
+        session = await PluginSession(server, directory).start()
+        try:
+            validate_tools(manifest, session.tools)
+        finally:
+            await session.aclose()
+    print(
+        f"PASS {manifest.id} {manifest.version}: 清单/兼容性/Skill"
+        + ("/MCP 工具声明" if live else "")
+    )
+    print("此检查不代替实际执行、超时取消、证据导出和视觉能力验收。")
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("directory", type=Path)
+    parser.add_argument("--live", action="store_true")
+    parser.add_argument("--values", default="{}", help="普通配置 JSON；不得包含密钥")
+    args = parser.parse_args()
+    asyncio.run(check(args.directory.resolve(), args.live, json.loads(args.values)))
+
+
+if __name__ == "__main__":
+    main()