feat(skill): optimize SKILL.md description for better auto-triggering (#324)

Rewrites the skill description with platform aliases (zh+en) and action triggers so agents reliably auto-invoke the skill. Maintainer follow-up on the branch: removed nonexistent skill_view tool reference, dropped finance category (no references/finance.md), updated the EN-locale test assertion to the new description. YAML validated, 85 tests pass. Fixes #316.

agent_reach/skill/SKILL_en.md

@@ -1,18 +1,19 @@
 ---
 name: agent-reach
 description: >
-  Give your AI agent eyes to see the entire internet.
-  Search and read 17 platforms: Twitter/X, Reddit, YouTube, GitHub, Bilibili,
-  XiaoHongShu, Douyin, Weibo, WeChat Articles, Xiaoyuzhou Podcast, LinkedIn,
-  V2EX, Xueqiu, RSS, Exa web search, and any web page.
-  Zero config for 8 channels. Use when the user asks to search, read, or interact
-  on any supported platform, shares a URL, or asks to search the web.
+  MUST USE when user asks to search, browse, read, or interact with content from any supported platform:
+  Twitter/X, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu, Douyin, Weibo,
+  WeChat Articles, Xiaoyuzhou Podcast, LinkedIn, V2EX, Xueqiu (stocks), RSS, or any web URL.
+
+  Also MUST USE for: web search, look up, research, find, share a URL/link, jobs/recruiting.
+  Routes to CLI tools: xhs-cli, twitter-cli, rdt-cli, gh, yt-dlp, curl+Jina, mcporter.
+  17 platforms, zero config for 8 channels.
+
   Triggers: "search twitter", "search xiaohongshu", "watch this video",
   "search the web", "look this up", "research", "youtube transcript",
   "search reddit", "read this link", "bilibili", "douyin video",
   "wechat article", "wechat official account", "weibo", "V2EX",
-  "xiaoyuzhou", "podcast", "xueqiu", "stock quote",
-  "install agent reach".
+  "xiaoyuzhou", "podcast", "xueqiu", "stock quote", "雪球", "股票".
 metadata:
   openclaw:
     homepage: https://github.com/Panniantong/Agent-Reach