diff --git a/.github/workflows/sync-plugins.yml b/.github/workflows/sync-plugins.yml
index cbb1779..79be4cf 100644
--- a/.github/workflows/sync-plugins.yml
+++ b/.github/workflows/sync-plugins.yml
@@ -30,8 +30,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           TURSO_DATABASE_URL: ${{ secrets.TURSO_DATABASE_URL }}
           TURSO_AUTH_TOKEN: ${{ secrets.TURSO_AUTH_TOKEN }}
-      # 探测安装方式：新收录的仓库 + 超过 7 天没探过的重探（作者可能发布 npm、
-      # GitHub Release tarball 或补 prepare）。每个有效 bundle 最多请求一次 Releases API。
+      # 探测安装方式：新收录、上次探测后有 push，或超过 7 天没探过的仓库。
+      # 作者可能发布 npm / Release 或补 prepare；每个有效 bundle 最多请求一次 Releases API。
       - run: pnpm probe:install
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/scripts/lib/install-metadata.test.mjs b/scripts/lib/install-metadata.test.mjs
new file mode 100644
index 0000000..37f2264
--- /dev/null
+++ b/scripts/lib/install-metadata.test.mjs
@@ -0,0 +1,53 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { createClient } from "@libsql/client";
+
+import {
+  installProbeFilter,
+  resolveLiveInstallDisplay,
+} from "../../src/lib/install-metadata.mjs";
+
+test("a repository pushed after its fresh install probe is selected again", async (t) => {
+  const client = createClient({ url: "file::memory:" });
+  t.after(() => client.close());
+  await client.execute(`CREATE TABLE plugins (
+    full_name TEXT, is_present INTEGER, is_offtopic INTEGER,
+    pushed_at TEXT, install_probed_at TEXT, stars INTEGER
+  )`);
+  await client.batch(
+    [
+      ["pushed/repo", "2026-08-16T01:00:00.000Z", "2026-08-15T01:00:00.000Z"],
+      ["quiet/repo", "2026-08-14T01:00:00.000Z", "2026-08-15T01:00:00.000Z"],
+    ].map(([fullName, pushedAt, probedAt], stars) => ({
+      sql: "INSERT INTO plugins VALUES (?, 1, 0, ?, ?, ?)",
+      args: [fullName, pushedAt, probedAt, stars],
+    })),
+    "write",
+  );
+
+  const filter = installProbeFilter({
+    only: [],
+    rederive: false,
+    all: false,
+    staleDays: 7,
+    now: Date.parse("2026-08-16T02:00:00.000Z"),
+  });
+  const selected = await client.execute({
+    sql: `SELECT full_name FROM plugins
+          WHERE is_present = 1 AND is_offtopic = 0${filter.sql}
+          ORDER BY stars DESC`,
+    args: filter.args,
+  });
+  assert.deepEqual(selected.rows.map((row) => String(row.full_name)), ["pushed/repo"]);
+});
+
+test("a live null never falls back to a stale editorial install command", () => {
+  const display = resolveLiveInstallDisplay({
+    liveCuratedCmd: null,
+    automaticCmd: null,
+    automaticKind: null,
+    editorialCmd: "dsh plugin add old-release.tgz",
+  });
+  assert.deepEqual(display, { installCmd: null, installKind: null });
+});
diff --git a/scripts/lib/install.test.mjs b/scripts/lib/install.test.mjs
index b5a4b4e..8ccb863 100644
--- a/scripts/lib/install.test.mjs
+++ b/scripts/lib/install.test.mjs
@@ -1,4 +1,5 @@
 import assert from "node:assert/strict";
+import { readFile } from "node:fs/promises";
 import test from "node:test";
 
 import {
@@ -264,3 +265,13 @@ test("preserves npm, build-required, git, and not-installable fallbacks", () =>
   );
   assert.equal(deriveInstall(installFacts({ hasBundle: false })).kind, "not-installable");
 });
+
+test("probe preserves an intentional curated pin even if it equals an earlier automatic command", async () => {
+  // String equality cannot establish provenance: an operator may deliberately keep that exact pin.
+  // Guard the write statement itself so probing may refresh install_cmd_auto but never install_cmd.
+  const source = await readFile(new URL("../probe-install.mjs", import.meta.url), "utf8");
+  const update = source.match(/sql: `UPDATE plugins SET([\s\S]*?)WHERE full_name = \?`/);
+  assert.ok(update, "probe UPDATE statement not found");
+  assert.doesNotMatch(update[1], /(?:^|[,\s])install_cmd\s*=/m);
+  assert.match(update[1], /(?:^|[,\s])install_cmd_auto\s*=/m);
+});
diff --git a/scripts/probe-install.mjs b/scripts/probe-install.mjs
index 9098e84..a59601a 100644
--- a/scripts/probe-install.mjs
+++ b/scripts/probe-install.mjs
@@ -3,7 +3,7 @@
  * 探测每个收录仓库「到底怎么装」，把事实与推导结论写回 Turso plugins 表。
  *
  * 用法：
- *   pnpm probe:install                     # 探测所有从未探过 / 超过 7 天没探的仓库
+ *   pnpm probe:install                     # 探测新仓库、最近有 push 或超过 7 天没探的仓库
  *   pnpm probe:install --stale-days 30     # 换个新鲜度阈值
  *   pnpm probe:install --all               # 无视新鲜度，全部重探
  *   pnpm probe:install --only owner/repo   # 只探一个（可重复传）
@@ -29,6 +29,7 @@ import {
   mergeReleaseProbe,
   probeTimestamp,
 } from "./lib/github-release-probe.mjs";
+import { installProbeFilter } from "../src/lib/install-metadata.mjs";
 
 const CONCURRENCY = 8;
 const DEFAULT_STALE_DAYS = 7;
@@ -217,16 +218,11 @@ let sql = `SELECT full_name, pkg_name, pkg_version, pkg_private, has_bundle, has
                   release_asset_size, release_asset_digest, release_etag, install_probed_at
            FROM plugins WHERE is_present = 1 AND is_offtopic = 0`;
 const args = [];
-if (only.length) {
-  sql += ` AND lower(full_name) IN (${only.map(() => "?").join(",")})`;
-  args.push(...only.map((s) => s.toLowerCase()));
-} else if (rederive) {
-  sql += ` AND install_probed_at IS NOT NULL`;
-} else if (!all) {
-  const cutoff = new Date(Date.now() - staleDays * 86400_000).toISOString();
-  sql += ` AND (install_probed_at IS NULL OR install_probed_at < ?)`;
-  args.push(cutoff);
-}
+// sync:db 已在本任务前刷新 pushed_at。仓库刚有 push 时不等满 7 天，下一轮就重探；
+// 没有活动的仓库仍按 staleDays 兜底，避免每天扫描全部安装元数据。
+const filter = installProbeFilter({ only, rederive, all, staleDays });
+sql += filter.sql;
+args.push(...filter.args);
 sql += ` ORDER BY stars DESC`;
 
 const rows = (await client.execute({ sql, args })).rows;
diff --git a/src/app/[locale]/plugins/[owner]/[repo]/page.tsx b/src/app/[locale]/plugins/[owner]/[repo]/page.tsx
index 9583c1a..57e2b74 100644
--- a/src/app/[locale]/plugins/[owner]/[repo]/page.tsx
+++ b/src/app/[locale]/plugins/[owner]/[repo]/page.tsx
@@ -23,6 +23,7 @@ import { getPluginDetail } from "@/lib/plugins-db";
 import { isLocale, type Locale } from "@/i18n/config";
 import { pageAlternates, SITE_URL } from "@/lib/site";
 import { ShareCardBox } from "@/components/share-card-box";
+import { resolveLiveInstallDisplay } from "@/lib/install-metadata.mjs";
 
 type Params = Promise<{ locale: string; owner: string; repo: string }>;
 
@@ -73,12 +74,16 @@ export default async function PluginDetailPage({
   const live = plugin.i18n[loc];
   const intro = live?.intro ?? editorial?.intro?.[loc];
   const highlights = live?.highlights ?? editorial?.highlights?.[loc];
-  // 安装命令三个来源，优先级递减：运营人工核对 → 构建期生成物 → 按 package.json/npm 推导。
+  // 安装命令只读实时库：运营人工核对 → 按 package.json/npm 推导。安装目标会过期，
+  // DB 明确返回 null 时不能再让构建期快照复活一条已撤销的旧命令；DB 不可用时
+  // getPluginDetail 会把安装结论整体置空并引导用户看仓库 README。
   // 都没有时不再拿 fullName 硬拼 `github:` —— 仓库名不足以推出安装方式，编出来的命令
   // 对索引仓库、非组合包、未构建的 TS 包一律是错的（判定见 scripts/lib/install.mjs）。
-  const curatedCmd = plugin.installCmd ?? editorial?.installCmd ?? null;
-  const installCmd = curatedCmd ?? plugin.installCmdAuto;
-  const installKind = curatedCmd ? "curated" : plugin.installKind;
+  const { installCmd, installKind } = resolveLiveInstallDisplay({
+    liveCuratedCmd: plugin.installCmd,
+    automaticCmd: plugin.installCmdAuto,
+    automaticKind: plugin.installKind,
+  });
   const description =
     live?.description ??
     localizePluginDescription(plugin.fullName, locale, plugin.description);
diff --git a/src/lib/install-metadata.mjs b/src/lib/install-metadata.mjs
new file mode 100644
index 0000000..00e1f8a
--- /dev/null
+++ b/src/lib/install-metadata.mjs
@@ -0,0 +1,37 @@
+const DAY_MS = 86_400_000;
+
+/** Build the mutually exclusive scope filter used by the install probe query. */
+export function installProbeFilter({
+  only,
+  rederive,
+  all,
+  staleDays,
+  now = Date.now(),
+}) {
+  if (only.length) {
+    return {
+      sql: ` AND lower(full_name) IN (${only.map(() => "?").join(",")})`,
+      args: only.map((name) => name.toLowerCase()),
+    };
+  }
+  if (rederive) return { sql: " AND install_probed_at IS NOT NULL", args: [] };
+  if (all) return { sql: "", args: [] };
+
+  const cutoff = new Date(now - staleDays * DAY_MS).toISOString();
+  return {
+    sql: " AND (install_probed_at IS NULL OR install_probed_at < ? OR pushed_at > install_probed_at)",
+    args: [cutoff],
+  };
+}
+
+/** Resolve install UI strictly from live database fields, never from an editorial snapshot. */
+export function resolveLiveInstallDisplay({
+  liveCuratedCmd,
+  automaticCmd,
+  automaticKind,
+}) {
+  return {
+    installCmd: liveCuratedCmd ?? automaticCmd,
+    installKind: liveCuratedCmd ? "curated" : automaticKind,
+  };
+}