@@ -33,6 +33,7 @@
 - 行首 `Ruling-ref:` 引本例外裁决原话;⛔ 不改 `domain:*`、不定 p0(归 main-red)、不碰人工地板。
 - 分诊每轮读上轮以来新贴的自分诊记录,逐条回复确认或改判;复审前席位定级有效。
 - 分类动作每张三选一,外加一个修复通道;裁定写方向、给六态之一。
+- 停 `pm:blocked` 同笔在卡正文写行首 `Blocked-by: #N`(issue/PR 号;full-run 卡写评论),散文不算。
 - 方向在 ADR/本卡裁决/不可重裁规则:贴 `check-prior-rulings.mjs` 的 `Prior rulings read:` 行,或不点。
 - `pm:queue` = 有具名落点或复现的具体缺陷,无可问之事;⛔ 工具/门禁修复不由此进。
 - `tooling` 入 `pm:queue` 仅凭三门之一:首行带 `Unblocks: #N`(open 产品卡)或点名所护的已发布面;
@@ -97,6 +98,5 @@
 - 轮次报告设呈裁清单专节(卡、推荐、所引权威),⛔ 无代裁清单、无追认表。
 - 回翻条款:实施中发现契约终究要动 ⇒ dev 停手,卡回决策箱,⛔ 永不静默重裁。
 - 请示纪律:方向性授权覆盖整条执行链一并做完,⛔ 不逐项回问。
-- 中间状态与限流/重试类运维细节只进座位贴和触发器,⛔ 不弹给维护者。
-- 汇报只在里程碑、真阻塞、被问到时。
+- 汇报只在里程碑、真阻塞、被问到时;中间状态与限流/重试类细节只进座位贴和触发器。
 - 人工地板项(发版、天花板、契约扩大)仍需明确字句,但攒批不逐项弹。
@@ -105,8 +105,9 @@ export async function fileCardStep({ github, context, core, now = () => new Date
   // The DECISION is the module's, driven offline by its self-test
   // against a mutable board (one red run files one card; the next
   // refreshes it and files no second; a refresh of a card whose
-  // every blocker is a closed LOCAL card moves `pm:blocked` to
-  // `pm:queue`). What is left here is thin callbacks over the API.
+  // every blocker is a closed LOCAL card, a PR one merged, moves
+  // `pm:blocked` to `pm:queue`). What is left here is thin callbacks
+  // over the API.
   const outcome = await mod.fileOrRefreshCard({
     identity,
     body,
@@ -138,7 +139,9 @@ export async function fileCardStep({ github, context, core, now = () => new Date
     getIssue: async ({ repo: target, number }) => {
       const [targetOwner, targetRepo] = target.split('/');
       const res = await github.rest.issues.get({ owner: targetOwner, repo: targetRepo, issue_number: number });
-      return { state: res.data.state, closed_at: res.data.closed_at };
+      // A PR number answers `closed` merged or not; `merged_at` tells them apart.
+      const pr = res.data.pull_request ? { pull_request: { merged_at: res.data.pull_request.merged_at ?? null } } : {};
+      return { state: res.data.state, closed_at: res.data.closed_at, ...pr };
     },
     // The swap: an additive POST and ONE remove by name.
     addLabels: async ({ number, labels }) => {
@@ -362,6 +365,43 @@ const SELF_TEST_CASES = [
       { output: ['number', '430'] },
     ],
   },
+  {
+    label: 'a pm:blocked card whose blocker is a PR closed unmerged is held: the PR shape reaches the judgement, no label write',
+    run: watchedRun(),
+    api: {
+      'actions.listWorkflowRuns': async () => previousGreenRun,
+      'repos.compareCommitsWithBasehead': async () => compareOf(0),
+      'issues.listForRepo': async () => ({
+        data: [{
+          number: 440,
+          title: mod.cardIdentity('CI').title,
+          body: 'old\n\nBlocked-by: #601\n',
+          state: 'open',
+          labels: [{ name: 'bug' }, { name: 'pm:blocked' }],
+          assignees: [],
+        }],
+      }),
+      'issues.listComments': async () => ({ data: [] }),
+      'issues.get': async () => ({
+        data: { state: 'closed', closed_at: '2026-10-26T20:00:00Z', pull_request: { merged_at: null } },
+      }),
+      'issues.update': async () => ({ data: {} }),
+    },
+    calls: [
+      LOOKUP, COMPARE, SCAN,
+      { api: 'issues.listComments', params: { ...OWNER_REPO, issue_number: 440, per_page: 100, page: 1 } },
+      { api: 'issues.get', params: { ...OWNER_REPO, issue_number: 601 } },
+      { api: 'issues.update', params: { ...OWNER_REPO, issue_number: 440 } },
+    ],
+    body: renderArgs({ compareUrl: COMPARE_URL }),
+    reports: [
+      { info: `refreshed ${mod.cardIdentity('CI').marker} card #440` },
+      { info: 'block: held -- #601 closed unmerged (a PR that never landed)' },
+      { notice: 'CI is red on the scheduled full run — card #440 refreshed.' },
+      { output: ['action', 'refreshed'] },
+      { output: ['number', '440'] },
+    ],
+  },
 ];
 
 // The roster is a LITERAL the table is checked against (see
@@ -375,9 +415,10 @@ const SELF_TEST_BATTERIES = Object.freeze({
   'a compare past the endpoint cap is marked truncated, and the watched workflow names the card': 1,
   'an open card is refreshed in place: one issues.update, no create, no label write': 1,
   'a pm:blocked card whose only blocker closed reaches every callback: comments, issue read, add then remove': 1,
+  'a pm:blocked card whose blocker is a PR closed unmerged is held: the PR shape reaches the judgement, no label write': 1,
 });
 // Deleting a roster entry silences its floor as surely as zeroing it.
-const SELF_TEST_BATTERY_FLOOR = 7;
+const SELF_TEST_BATTERY_FLOOR = 8;
 
 /** Doubles of what github-script hands the step, recording every call. */
 function doubles(caseDef) {
 
@@ -504,9 +504,9 @@ export async function fileOrRefreshCard({
 // THE RULE. On a refresh of a card carrying `pm:blocked`, every `Blocked-by:`
 // target the card names -- body AND comments, line-initial, read by the
 // patrol's own reader -- is resolved. When EVERY one is a LOCAL card that has
-// closed, no `Unlock-action:` line names another unlock, and the card has no
-// assignee, the refresh swaps `pm:blocked` for `pm:queue` and says so in the
-// refreshed body. Anything else changes no label:
+// closed (a PR: merged), no `Unlock-action:` line names another unlock, and the
+// card has no assignee, the refresh swaps `pm:blocked` for `pm:queue` and says
+// so in the refreshed body. Anything else changes no label:
 //
 //   not pm:blocked        nothing read at all
 //   no target named       H4's row (a block with no line), not this refresh's
@@ -520,6 +520,10 @@ export async function fileOrRefreshCard({
 //                         objectstack consumes objectui through the
 //                         `.objectui-sha` pin, so the next hourly red is the
 //                         SAME failure until the pin moves -- never released
+//   a PR target CLOSED    abandoned, not landed (#27846): the issues API answers
+//     UNMERGED            a PR number `closed` whether or not it merged, and
+//                         only `pull_request.merged_at` tells the two apart --
+//                         never released
 //   an `Unlock-action:`   the card names an unlock other than closure
 //     line (any channel)  (`references/state-machine.md`, `pm:blocked`), so
 //                         closure is not its exit -- never released. Any value
@@ -561,19 +565,22 @@ export const QUEUE_LABEL = 'pm:queue';
 
 // The pure verdict over resolved targets. `resolutions` are
 // `blockerTargetsFor`'s targets, each carrying `local` and `state`
-// ('open' | 'closed' | 'unresolved') -- the shape H19 judges.
+// ('open' | 'closed' | 'unresolved') -- the shape H19 judges -- and, on a PR
+// that closed without merging, `unmerged: true`.
 // `unlockActions` are the card's `Unlock-action:` values, both channels.
 export function staleBlockVerdict({ issue, resolutions, unlockActions = [] }) {
   if (!labelNames(issue ?? {}).includes(BLOCKED_LABEL)) return { verdict: 'not-blocked' };
   const rows = resolutions ?? [];
   if (rows.length === 0) return { verdict: 'no-target' };
   const open = rows.filter((r) => r.state === 'open');
   const unread = rows.filter((r) => r.state !== 'open' && r.state !== 'closed');
+  // A PR closed unmerged never landed its fix anywhere: it withholds.
+  const unmerged = rows.filter((r) => r.state === 'closed' && r.unmerged === true);
   // Closed THERE is not consumable HERE: a closed cross-repo target withholds.
   const upstream = rows.filter((r) => r.state === 'closed' && r.local !== true);
   const declared = [...(unlockActions ?? [])];
-  if (open.length > 0 || unread.length > 0 || upstream.length > 0 || declared.length > 0) {
-    return { verdict: 'held', open, unread, upstream, unlockActions: declared };
+  if (open.length > 0 || unread.length > 0 || unmerged.length > 0 || upstream.length > 0 || declared.length > 0) {
+    return { verdict: 'held', open, unread, unmerged, upstream, unlockActions: declared };
   }
   const assignees = (issue?.assignees ?? []).map((a) => String(a?.login ?? a));
   if (assignees.length > 0) return { verdict: 'assigned', assignees };
@@ -611,10 +618,14 @@ export async function judgeCardBlock({ issue, ownerRepo, listComments, getIssue,
     try {
       const got = await getIssue({ repo: target.repo, number: target.number });
       const state = got?.state === 'closed' || got?.state === 'open' ? got.state : 'unresolved';
+      // A PR answers in the issues API's PR shape; a closed one with no
+      // `merged_at` was abandoned (a missing `merged_at` reads the same: held).
+      const unmerged = state === 'closed' && got?.pull_request != null && !got.pull_request.merged_at;
       resolutions.push({
         ...target,
         state,
         closedAt: got?.closed_at ?? null,
+        ...(unmerged ? { unmerged: true } : {}),
         detail: state === 'unresolved' ? `answered state '${got?.state}'` : null,
       });
     } catch (error) {
@@ -627,12 +638,15 @@ export async function judgeCardBlock({ issue, ownerRepo, listComments, getIssue,
 
 const targetName = (r) => (r.local ? `#${r.number}` : r.key);
 
-// What each target reads as on the summary row. A closed cross-repo target is
-// NAMED as the reason it holds, never shown as a bare `closed`.
-const targetReading = (r) =>
-  r.state === 'closed' && r.local !== true
-    ? `${targetName(r)} closed upstream (not an unlock criterion for this consumer)`
-    : `${targetName(r)} ${r.state}`;
+// What each target reads as on the summary row. A closed cross-repo target, and
+// a PR closed unmerged, are NAMED as the reason they hold, never a bare `closed`.
+const targetReading = (r) => {
+  if (r.state === 'closed' && r.unmerged === true) return `${targetName(r)} closed unmerged (a PR that never landed)`;
+  if (r.state === 'closed' && r.local !== true) {
+    return `${targetName(r)} closed upstream (not an unlock criterion for this consumer)`;
+  }
+  return `${targetName(r)} ${r.state}`;
+};
 
 // One line for the run log: the verdict and what it was read from.
 function summariseBlock(block) {
@@ -1726,7 +1740,7 @@ async function selfTest() {
   // log of every call the refresh makes, in order.
   const blockBoard = ({
     labels = [...CARD_LABELS, BLOCKED_LABEL], assignees = [], comments = [], states = {}, cardBody = OLD_BODY,
-    commentPages = null, failComments = null, failAdd = null, failRemove = null,
+    commentPages = null, failComments = null, failAdd = null, failRemove = null, pulls = {},
   } = {}) => {
     const card = { number: 23885, title: OPEN_CI_TITLE, body: cardBody,
       labels: labels.map((name) => ({ name })), assignees: assignees.map((login) => ({ login })) };
@@ -1751,7 +1765,9 @@ async function selfTest() {
         calls.push(`getIssue ${repo}#${number}`);
         const state = states[`${repo}#${number}`];
         if (!state) throw notFound('Not Found');
-        return { state, closed_at: state === 'closed' ? '2026-10-16T13:20:00Z' : null };
+        // A number in `pulls` is a PR, answered in the issues API's PR shape.
+        const pr = Object.hasOwn(pulls, `${repo}#${number}`) ? { pull_request: { merged_at: pulls[`${repo}#${number}`] } } : {};
+        return { state, closed_at: state === 'closed' ? '2026-10-16T13:20:00Z' : null, ...pr };
       },
       addLabels: async ({ number, labels: add }) => {
         calls.push(`addLabels #${number} ${add.join(',')}`);
@@ -1947,6 +1963,30 @@ async function selfTest() {
       states: { 'objectstack-ai/objectstack#23908': 'closed' } });
     if ((await b.refresh()).block !== 'expired') throw new Error('body channel: a body-borne line was not read');
   });
+  // A park on a PR (#27846): triage names the PR itself, and the issues API
+  // answers it `closed` whether it merged or was abandoned. MERGED releases
+  // the card, in either channel; closed UNMERGED holds it and says why; OPEN
+  // holds it.
+  await check(async () => {
+    const PR = 'objectstack-ai/objectstack#24305';
+    for (const where of [{ cardBody: `${OLD_BODY}\nBlocked-by: #24305` }, { comments: ['- **Blocked-by: #24305.**'] }]) {
+      const b = blockBoard({ ...where, states: { [PR]: 'closed' }, pulls: { [PR]: '2026-10-16T13:20:00Z' } });
+      const outcome = await b.refresh();
+      if (outcome.block !== 'expired' || b.names() !== sorted([...CARD_LABELS, QUEUE_LABEL])) {
+        throw new Error(`merged PR: expected the card released, got '${outcome.block}' holding ${b.names()}`);
+      }
+    }
+    const abandoned = blockBoard({ cardBody: `${OLD_BODY}\nBlocked-by: #24305`,
+      states: { [PR]: 'closed' }, pulls: { [PR]: null } });
+    const held = await abandoned.refresh();
+    untouched(abandoned, held, 'held');
+    if (!held.blockSummary.includes('#24305 closed unmerged')) {
+      throw new Error(`unmerged PR: the summary does not name the abandoned PR as the reason (${held.blockSummary})`);
+    }
+    if (abandoned.card.body !== NEW_BODY) throw new Error('unmerged PR: a held block wrote a note into the body');
+    const open = blockBoard({ cardBody: `${OLD_BODY}\nBlocked-by: #24305`, states: { [PR]: 'open' }, pulls: { [PR]: null } });
+    untouched(open, await open.refresh(), 'held');
+  });
   // A card naming only itself names no blocker.
   await check(async () => {
     const b = blockBoard({ comments: ['Blocked-by: #23885'], states: { 'objectstack-ai/objectstack#23885': 'open' } });