iter(g176): 支持按参数说明检索组件

packages/tools/cli/bin/ua.js

@@ -203,25 +203,39 @@ function nearIds(name) {
     .map(([id]) => id);
 }
 
-/*** 按关键词搜组件：多词取最弱命中（AND 语义），id 命中优先于 title，其次 props 名与步骤文案；未命中退出码 1 ***/
+/*** 组件的可检索字段：权重从高到低（id > 标题 > 参数名 > 参数说明 > 步骤），search 与 MCP 共用一份 ***/
+function searchFields(comp) {
+  const props = comp.props ?? [];
+  return [
+    { label: 'id', weight: 3, text: String(comp.id ?? '') },
+    { label: '标题', weight: 2, text: String(comp.title ?? '') },
+    { label: '参数', weight: 1, text: props.map((p) => String(p.n ?? '')).join(' ') },
+    { label: '参数说明', weight: 0.8, text: props.map((p) => String(p.d ?? '')).join(' ') },
+    { label: '步骤', weight: 0.5, text: (comp.steps ?? []).join(' ') },
+  ].map((f) => ({ label: f.label, weight: f.weight, text: f.text.toLowerCase() }));
+}
+
+/*** 单个关键词在组件上的最佳命中：返回最高档字段（id 全等额外抬到最前），未命中 score 为 0 ***/
+function matchOf(kw, comp) {
+  let best = { score: 0, label: '' };
+  for (const f of searchFields(comp)) {
+    if (!f.text.includes(kw)) continue;
+    const score = f.label === 'id' && f.text === kw ? 4 : f.weight; // id 全等单独一档，避免被 id 含稀释
+    if (score > best.score) best = { score, label: f.label };
+  }
+  return best;
+}
+
+/*** 按关键词搜组件：多词取最弱命中（AND 语义），并标出该词命中的字段，便于判断为何被召回 ***/
 function cmdSearch(words = [], args = []) {
   const kws = [...new Set(words.map((w) => String(w).toLowerCase().trim()).filter(Boolean))];
   if (!kws.length) return console.error('usage: ua search <关键词...> [--json]');
-  const scoreOf = (kw, comp) => {
-    const id = String(comp.id ?? '').toLowerCase();
-    const title = String(comp.title ?? '').toLowerCase();
-    const props = (comp.props ?? []).map((p) => String(p.n ?? '').toLowerCase()).join(' ');
-    const steps = (comp.steps ?? []).join(' ').toLowerCase();
-    if (id === kw) return 4; // 分档只用于排序：id 全等 > id 含 > 标题 > props 名 > 步骤
-    if (id.includes(kw)) return 3;
-    if (title.includes(kw)) return 2;
-    if (props.includes(kw)) return 1;
-    return steps.includes(kw) ? 0.5 : 0;
-  };
   const hits = collectComponents()
     .map(({ pkg, comp }) => {
-      const scores = kws.map((kw) => scoreOf(kw, comp));
-      return scores.every((s) => s > 0) ? { pkg, comp, score: Math.min(...scores) } : null; // 任一词不中即淘汰
+      const ms = kws.map((kw) => ({ kw, ...matchOf(kw, comp) }));
+      if (ms.some((m) => !m.score)) return null; // 任一词不中即淘汰
+      const weakest = ms.reduce((a, b) => (b.score < a.score ? b : a)); // 排序与提示都看最弱那一词
+      return { pkg, comp, score: weakest.score, field: weakest.label, keyword: weakest.kw };
     })
     .filter(Boolean)
     .sort((a, b) => b.score - a.score || String(a.comp.id).localeCompare(String(b.comp.id)));
@@ -231,9 +245,14 @@ function cmdSearch(words = [], args = []) {
     return process.exit(1);
   }
   if (args.includes('--json')) {
-    return console.log(JSON.stringify(hits.map((h) => ({ package: h.pkg.name, ...h.comp })), null, 2));
+    return console.log(
+      JSON.stringify(hits.map((h) => ({ package: h.pkg.name, ...h.comp, matched: { field: h.field, keyword: h.keyword } })), null, 2),
+    );
+  }
+  for (const h of hits) {
+    const why = h.field === 'id' || h.field === '标题' ? '' : `  ← ${h.field}含「${h.keyword}」`;
+    console.log(`${String(h.comp.id).padEnd(16)} ${h.comp.title ?? ''}  (${h.pkg.name})${why}`);
   }
-  for (const h of hits) console.log(`${String(h.comp.id).padEnd(16)} ${h.comp.title ?? ''}  (${h.pkg.name})`);
   console.log(`\n共 ${hits.length} 个组件命中；查参数：ua info <组件id>`);
 }
 
@@ -583,7 +602,7 @@ function cmdMcp() {
     },
     {
       name: 'search_components',
-      description: 'Search by keyword: returns matched packages plus matched components (id/title/props)',
+      description: 'Search by keyword: returns matched packages plus matched components (id/title/prop names/prop descriptions/steps)',
       inputSchema: {
         type: 'object',
         properties: { query: { type: 'string' } },
@@ -647,9 +666,7 @@ function cmdMcp() {
         )
         .map((p) => ({ name: p.name, version: p.version, type: p.type, description: p.description }));
       const comps = collectComponents(packages) // 组件级命中：包级 exports 只给出包名，Agent 还得再查一次
-        .filter(({ comp }) =>
-          [comp.id, comp.title, ...(comp.props ?? []).map((p) => p.n)].join(' ').toLowerCase().includes(q),
-        )
+        .filter(({ comp }) => searchFields(comp).some((f) => f.text.includes(q))) // 与 CLI search 同一份字段表
         .map(({ pkg, comp }) => ({ package: pkg.name, id: comp.id, title: comp.title }));
       if (!pkgs.length && !comps.length) throw new Error(`no match: ${args.query}`);
       return { packages: pkgs, components: comps };