diff --git a/.github/scripts/enqueue-guard.mjs b/.github/scripts/enqueue-guard.mjs
index bc16940a9..b367e83a4 100644
--- a/.github/scripts/enqueue-guard.mjs
+++ b/.github/scripts/enqueue-guard.mjs
@@ -69,6 +69,12 @@ export function decidePull({ gh = realGh, env = process.env, repo: repoOption, p
     ...list(`repos/${repo}/pulls/${pr}/reviews?per_page=100`)
       .filter((v) => (v.body ?? '').trim())
       .map((v) => ({ id: v.id, kind: 'review', login: v.user?.login, type: v.user?.type, body: v.body, at: v.submitted_at, association: v.author_association })),
+    // #2091: a comment written on one line of the diff is a third place a person can write, and the stop
+    // request is read from all three. `kind: 'review-comment'` keeps it out of the conclusion readers
+    // (`isConclusionSource`), which is the half that does not change: it is a request, never a verdict.
+    ...list(`repos/${repo}/pulls/${pr}/comments?per_page=100`)
+      .filter((c) => (c.body ?? '').trim())
+      .map((c) => ({ id: c.id, kind: 'review-comment', login: c.user?.login, type: c.user?.type, body: c.body, at: c.created_at, association: c.author_association })),
   ]
   const files = list(`repos/${repo}/pulls/${pr}/files?per_page=100`)
   // #1112: the head is read again after the comments and the diff. A push in the middle of this run
diff --git a/.github/scripts/enqueue-guard.test.mjs b/.github/scripts/enqueue-guard.test.mjs
index dd03f77f1..05fae621e 100644
--- a/.github/scripts/enqueue-guard.test.mjs
+++ b/.github/scripts/enqueue-guard.test.mjs
@@ -76,7 +76,7 @@ const withCheckpoint = (text, files) => {
   return `${text}\n${checkpoint({ issue, claim, files: names.length ? names : [HOST_FILE] })}`
 }
 
-const fakeGh = ({ body = null, raw = false, comments = [], reviews = [], labels = ['agent-pr'], files = [], head = HEAD, heads = null, author = 'opener', headRepo = 'ThinkFlowLab/FlyBot', permission = undefined, draft = false, merged = false, branch = 'dev/fixture' } = {}) => {
+const fakeGh = ({ body = null, raw = false, comments = [], reviews = [], reviewComments = [], labels = ['agent-pr'], files = [], head = HEAD, heads = null, author = 'opener', headRepo = 'ThinkFlowLab/FlyBot', permission = undefined, draft = false, merged = false, branch = 'dev/fixture' } = {}) => {
   // `raw` is for the tests about the checkpoint itself: they must be able to hand over a body without one.
   const given = body ?? `${HEADERS}Fixes #602\n`
   const text = raw ? given : withCheckpoint(given, files)
@@ -90,6 +90,9 @@ const fakeGh = ({ body = null, raw = false, comments = [], reviews = [], labels
       return JSON.stringify({ permission, role_name: permission, user: { login: 'reviewed' } })
     }
     if (path.includes('/files')) return files.map((f) => JSON.stringify(typeof f === 'string' ? { filename: f } : f)).join('\n')
+    // The line-anchored comments are their own endpoint; without this branch the fixture would answer
+    // them with the issue comments and a test could not tell the two faces apart.
+    if (/\/pulls\/\d+\/comments/.test(path)) return reviewComments.map((c) => JSON.stringify(c)).join('\n')
     if (path.includes('/comments')) return comments.map((c) => JSON.stringify(c)).join('\n')
     if (path.includes('/reviews')) return reviews.map((r) => JSON.stringify(r)).join('\n')
     if (/\/pulls\/\d+$/.test(path)) {
@@ -1048,3 +1051,69 @@ test('#602 (2026-11-01): a T0/T1 pull request with no PASS is stopped by a revie
   assert.match(r.reasons.join('; '), /asks not to merge this pull request/)
   assert.match(r.reasons.join('; '), /6561490254/)
 })
+
+// The third face the API offers: a comment written on one line of the diff (`pulls/{pr}/comments`). It
+// carries the same `body` and `user` as the other two, and `created_at` where a review carries
+// `submitted_at`. A person reaching for the line that is wrong writes the request there, so it reaches
+// the same reader — and it is the one face that is a request and never a conclusion (#2091).
+const inlineNote = ({ id = 6561490255, login = 'hugo', type = 'User', body = '@Birfy — **please do not merge this tip.** This line is the one that reads the wrong list.', at = '2026-11-01T17:38:11Z', association = 'CONTRIBUTOR', path = 'core/src/client/kanban.js', line = 422, replyTo = null } = {}) =>
+  ({ id, user: { login, type }, body, created_at: at, author_association: association, path, line, ...(replyTo == null ? {} : { in_reply_to_id: replyTo }) })
+
+test('#602 (2026-11-01): an inline review comment asking not to merge this tip refuses too, and names it', () => {
+  const gh = fakeGh({ files: [HOST_FILE], comments: [comment(report(), '2026-11-01T17:35:30Z')], reviewComments: [inlineNote()] })
+  const r = main({ gh, env: { REVIEW_POLICY: POLICY, GH_REPO: 'ThinkFlowLab/FlyBot', PR: '566' }, repo: 'ThinkFlowLab/FlyBot', pr: 566 })
+  assert.equal(r.ok, false, 'a request written on one line of the diff is the same request')
+  const text = r.reasons.join('; ')
+  assert.match(text, /asks not to merge this pull request/)
+  assert.match(text, /6561490255/, 'the refusal names the comment it read')
+  // The two faces are read from their own endpoints: a fixture that answers both from one array would
+  // let an issue comment pose as the inline one and make this case green for the wrong reason.
+  assert.ok(gh.calls.some((path) => /\/issues\/566\/comments/.test(path)), 'the issue comments are read')
+  assert.ok(gh.calls.some((path) => /\/pulls\/566\/comments/.test(path)), 'the line-anchored comments are read as their own face')
+})
+
+test('#602 (2026-11-01): an inline comment that only talks about the code is not a stop', () => {
+  const talk = inlineNote({ id: 6561490256, body: 'This branch reads `own` here — is that the list the room board draws?' })
+  const r = run({ comments: [comment(report(), '2026-11-01T17:35:30Z')], reviewComments: [talk] })
+  assert.equal(r.ok, true, r.reasons.join('; '))
+})
+
+test('#602 (2026-11-01): a conclusion written on one line of the diff is a request reader only, never a verdict', () => {
+  // A MEMBER can write a Verifier block in a line-anchored comment; it is still not one of the two faces a
+  // conclusion is written in. It neither passes nor stops: the issue comment's PASS stays the one read.
+  const gh = fakeGh({
+    files: [HOST_FILE],
+    comments: [comment(report(), '2026-11-01T17:35:30Z', { id: 9001 })],
+    reviewComments: [inlineNote({ id: 9002, login: 'reviewer-agent', association: 'MEMBER', body: report({ extra: ['**please do not merge this tip.**'] }) })],
+  })
+  const r = main({ gh, env: { REVIEW_POLICY: POLICY, GH_REPO: 'ThinkFlowLab/FlyBot', PR: '566' }, repo: 'ThinkFlowLab/FlyBot', pr: 566 })
+  assert.equal(r.ok, true, r.reasons.join('; '))
+  assert.equal(r.stopRequest, null, 'a body carrying a conclusion is not a stop')
+  assert.equal(r.verdict.id, 9001, 'the conclusion is the issue comment, not the line-anchored one')
+  assert.equal(r.verdict.by, 'reviewer-agent')
+})
+
+test('#602 (2026-11-01): a "record only" marker on one line of the diff does not hold the entry', () => {
+  // The marker is read from a body that parses as a conclusion (`recordOnlyAt`): a line-anchored comment
+  // is not one of the faces a conclusion is written in, so a Verifier block parked there cannot park the
+  // pull request either.
+  const parked = inlineNote({ id: 6561490257, login: 'reviewer-agent', association: 'MEMBER', body: report({ extra: ['Record only — do not merge'] }) })
+  const r = run({ comments: [comment(report(), '2026-11-01T17:35:30Z')], reviewComments: [parked] })
+  assert.equal(r.ok, true, r.reasons.join('; '))
+})
+
+test('#602 (2026-11-01): a reply on an inline thread is the same request, and it is read once', () => {
+  const reply = inlineNote({ id: 6561490258, body: '@Birfy **please do not merge this tip** — the point above still stands.', replyTo: 6561490255 })
+  const r = run({ comments: [comment(report(), '2026-11-01T17:35:30Z')], reviewComments: [reply] })
+  assert.equal(r.ok, false, r.reasons.join('; '))
+  assert.equal((r.reasons.join('; ').match(/6561490258/g) ?? []).length, 1, 'a reply is read once, not once per face')
+})
+
+test('#602 (2026-11-01): an inline stop written before the PASS at this tip is not this tip\'s hold', () => {
+  // The window is the one `stopRequestAt` already reads: a request older than the conclusion this
+  // decision used has been answered by that PASS. The third face inherits it rather than opening a wider
+  // window of its own.
+  const early = inlineNote({ id: 6561490259, at: '2026-11-01T17:00:00Z' })
+  const r = run({ comments: [comment(report(), '2026-11-01T17:35:30Z', { id: 9103 })], reviewComments: [early] })
+  assert.equal(r.ok, true, r.reasons.join('; '))
+})
diff --git a/.github/scripts/enqueue-rules.mjs b/.github/scripts/enqueue-rules.mjs
index e886be076..d386dea94 100644
--- a/.github/scripts/enqueue-rules.mjs
+++ b/.github/scripts/enqueue-rules.mjs
@@ -14,6 +14,13 @@ const SHORT = 12
 // first real one wrote `- \`RECORD_ONLY\` matches … a record written only in Chinese would not keep the
 // pull request out` — must not freeze itself (#687). A bullet or a quote line is allowed, but nothing
 // may follow the marker on it except its other language half.
+// #2091: a comment written on one line of the diff (`pulls/{pr}/comments`, `kind: 'review-comment'`) is a
+// request and never a conclusion. `stopRequestAt` reads all three faces, because a person's "do not
+// merge" is the same request in whichever box it is typed; the conclusion readers take the two faces a
+// Verifier block is written in, so adding the third input cannot add a way to record a PASS. One
+// predicate, used by every reader that parses a body for a conclusion.
+export const isConclusionSource = (r) => r?.kind !== 'review-comment'
+
 const RECORD_ONLY = /^[\s>*+-]*(?:record only\s*[—–-]+\s*do not (?:merge|queue)(?:\s*[/／]\s*仅记录[、,，]?\s*禁止入队)?|仅记录[、,，]?\s*禁止入队)\s*[.。]?\s*$/im
 // AGENTS.md → Claim: a pull request says `Fixes #N` in its body, and one issue carries one pull request.
 // #718: a pull request with no issue behind it, or with no `agent-pr` label, is not the routine's work at
@@ -221,6 +228,7 @@ export function recordOnlyAt(reports, head) {
   const target = String(head ?? '').toLowerCase()
   if (!target) return null
   const at = (reports ?? [])
+    .filter(isConclusionSource)
     .map((r, i) => ({ r, i, parsed: parseReport(r.body) }))
     .filter(({ parsed }) => parsed.verdict && parsed.tip && target === parsed.tip)
     .map((x) => ({ ...x, t: Date.parse(x.r.at ?? 0) || 0 }))
diff --git a/.github/scripts/merge-gate.mjs b/.github/scripts/merge-gate.mjs
index cba77e064..15e417272 100644
--- a/.github/scripts/merge-gate.mjs
+++ b/.github/scripts/merge-gate.mjs
@@ -27,7 +27,7 @@ import { fileURLToPath } from 'node:url'
 import { adminsFor, decide, loadPolicy } from './review-gate.mjs'
 import { loadSigners } from './verdict-signature.mjs'
 import { createGate, loadRules } from './risk-gate.mjs'
-import { guard } from './enqueue-rules.mjs'
+import { guard, isConclusionSource } from './enqueue-rules.mjs'
 
 const SHORT = 12
 const HOLD = 'hold'
@@ -118,10 +118,14 @@ export function judge({ labels, files, head, author, reports, policy, expectedHe
   // (#640, INC point 2): a refusal here would stop every routine fix and every release.
   const tier = fileList(files).length ? computedTier(files) : null
   const exempt = exemptFromPass({ tier, files })
+  // #2091: a conclusion is written in one of the two faces the API has for it — an issue comment or a
+  // review body. A line-anchored review comment reaches `guard()` as a request only, so it is dropped
+  // here, before `decide` and `adminsFor`, and cannot become a verdict or a permission lookup.
+  const conclusionReports = (reports ?? []).filter(isConclusionSource)
   // A tier that needs no PASS also needs no permission lookup.
   const verdict = exempt
     ? { ok: true, verdict: null, by: null, exempt: true }
-    : decide({ head: target, author, reports, policy, body, owners, admins: admins ?? adminsFor({ gh, repo, reports, policy, author }), repo, pr, signers, gh, changedPaths: fileNames(files), sameChangeSet })
+    : decide({ head: target, author, reports: conclusionReports, policy, body, owners, admins: admins ?? adminsFor({ gh, repo, reports: conclusionReports, policy, author }), repo, pr, signers, gh, changedPaths: fileNames(files), sameChangeSet })
   if (!verdict.ok) reasons.push(verdict.reason)
   // A report says what the queue entry would refuse; only the queue entry refuses. Fail a
   // `pull_request` run and it keeps failing after the INC it names is answered by a PASS, because a
@@ -219,6 +223,12 @@ export function main({ gh = realGh, env = process.env, repo: repoOption, pr: prO
     ...list(`repos/${repo}/pulls/${pr}/reviews?per_page=100`)
       .filter((v) => (v.body ?? '').trim())
       .map((v) => ({ id: v.id, kind: 'review', login: v.user?.login, type: v.user?.type, body: v.body, at: v.submitted_at, association: v.author_association })),
+    // #2091: a comment written on one line of the diff is a third place a person can write, and the stop
+    // request is read from all three. `kind: 'review-comment'` keeps it out of the conclusion readers
+    // (`isConclusionSource`), which is the half that does not change: it is a request, never a verdict.
+    ...list(`repos/${repo}/pulls/${pr}/comments?per_page=100`)
+      .filter((c) => (c.body ?? '').trim())
+      .map((c) => ({ id: c.id, kind: 'review-comment', login: c.user?.login, type: c.user?.type, body: c.body, at: c.created_at, association: c.author_association })),
   ]
 
   // The whole file record, not just the name: the T0/T1 exemption is computed from the diff by the
diff --git a/.github/scripts/merge-gate.test.mjs b/.github/scripts/merge-gate.test.mjs
index 4873fecf3..647dd75bb 100644
--- a/.github/scripts/merge-gate.test.mjs
+++ b/.github/scripts/merge-gate.test.mjs
@@ -162,28 +162,40 @@ const checkpointFor = (text, files = [], pr = 637) => {
   return ['<!-- flybot:checkpoint -->', '\u0060\u0060\u0060json', JSON.stringify(fields, null, 2), '\u0060\u0060\u0060', '<!-- /flybot:checkpoint -->'].join('\n')
 }
 const bodyWithCheckpoint = (text, files = [], pr = 637) => (/<!-- flybot:checkpoint -->/.test(text) ? text : `${text}\n${checkpointFor(text, files, pr)}`)
-const fakeGh = ({ comments, reviews = [], labels = ['agent-pr'], files = [], head = HEAD, body = null, pr = 637, headRepo = 'ThinkFlowLab/FlyBot', draft = false, merged = false }) => (...args) => {
-  const path = args[args.length - 1]
-  const text = bodyWithCheckpoint(body ?? `${HEADERS}Fixes #${pr}\n`, files, pr)
-  const pull = { head: { sha: head, repo: { full_name: headRepo } }, user: { login: 'opener' }, labels: labels.map((name) => ({ name })), body: text, draft, merged }
-  if (path.includes('/files')) return (files ?? []).map((filename) => JSON.stringify({ filename })).join('\n')
-  if (path.includes('/comments')) return [comments].flat().map((entry) => JSON.stringify(entry)).join('\n')
-  if (path.includes('/reviews')) return [reviews].flat().map((entry) => JSON.stringify(entry)).join('\n')
-  if (/\/pulls\/\d+$/.test(path)) return JSON.stringify(pull)
-  throw new Error('fake gh: unexpected ' + path)
+const fakeGh = ({ comments, reviews = [], reviewComments = [], labels = ['agent-pr'], files = [], head = HEAD, body = null, pr = 637, headRepo = 'ThinkFlowLab/FlyBot', draft = false, merged = false }) => {
+  const calls = []
+  const gh = (...args) => {
+    const path = args[args.length - 1]
+    calls.push(path)
+    const text = bodyWithCheckpoint(body ?? `${HEADERS}Fixes #${pr}\n`, files, pr)
+    const pull = { head: { sha: head, repo: { full_name: headRepo } }, user: { login: 'opener' }, labels: labels.map((name) => ({ name })), body: text, draft, merged }
+    if (path.includes('/files')) return (files ?? []).map((filename) => JSON.stringify({ filename })).join('\n')
+    // The line-anchored comments are their own endpoint: one array for both would let an issue comment
+    // answer as an inline one and make a test green for the wrong reason.
+    if (/\/pulls\/\d+\/comments/.test(path)) return [reviewComments].flat().map((entry) => JSON.stringify(entry)).join('\n')
+    if (path.includes('/comments')) return [comments].flat().map((entry) => JSON.stringify(entry)).join('\n')
+    if (path.includes('/reviews')) return [reviews].flat().map((entry) => JSON.stringify(entry)).join('\n')
+    if (/\/pulls\/\d+$/.test(path)) return JSON.stringify(pull)
+    throw new Error('fake gh: unexpected ' + path)
+  }
+  gh.calls = calls
+  return gh
 }
 
-const runGate = (fixture) => {
+const runGateVia = (fixture) => {
   const policy = join(mkdtempSync(join(tmpdir(), 'merge-gate-policy-')), 'review-policy.json')
   writeFileSync(policy, JSON.stringify({ reviewers: ['reviewer-agent'], selfReview: [], writers: ['Reviewer'] }))
-  return main({
-  gh: fakeGh(fixture),
+  const gh = fakeGh(fixture)
+  const result = main({
+  gh,
   env: { GITHUB_STEP_SUMMARY: '', REVIEW_POLICY: policy },
   repo: 'ThinkFlowLab/FlyBot',
   pr: 637,
   headRef: ENTRY,
   })
+  return { result, gh }
 }
+const runGate = (fixture) => runGateVia(fixture).result
 
 // The comment id is the handle a refusal names (#1112), and #602 (2026-11-01) names the stop it reads.
 let commentId = 5000
@@ -262,6 +274,36 @@ test('#602 (2026-11-01): a comment asking not to merge refuses the queue entry,
   assert.match(author.reasons.join('; '), /comment 2 by opener/)
 })
 
+// The third face: a comment written on one line of the diff (`pulls/{pr}/comments`). It reaches the stop
+// reader like the other two, and only that reader — a Verifier block written there is not a conclusion
+// (#2091).
+const apiInlineComment = ({ id = 6561490257, login = 'hugo', type = 'User', body = '@Birfy — **please do not merge this tip.** This line reads the wrong list.', at = '2026-11-01T17:38:11Z', association = 'CONTRIBUTOR', path = 'core/src/client/kanban.js', line = 422 } = {}) =>
+  ({ id, user: { login, type }, body, created_at: at, author_association: association, path, line })
+
+test('#602 (2026-11-01): an inline review comment asking not to merge refuses the queue entry, through main()', () => {
+  const { result, gh } = runGateVia({ comments: [apiComment(firstLine('PASS'), '2026-11-01T17:35:30Z')], reviewComments: [apiInlineComment()] })
+  assert.equal(result.ok, false, 'a request written on one line of the diff is the same request')
+  assert.match(result.reasons.join('; '), /asks not to merge this pull request: comment 6561490257/)
+  // The two faces come from their own endpoints, so this cannot be green because an issue comment answered
+  // for the inline one.
+  assert.ok(gh.calls.some((path) => /\/issues\/637\/comments/.test(path)), 'the issue comments are read')
+  assert.ok(gh.calls.some((path) => /\/pulls\/637\/comments/.test(path)), 'the line-anchored comments are read as their own face')
+})
+
+test('#602 (2026-11-01): a conclusion written on one line of the diff is a request reader only, never a verdict', () => {
+  const { result } = runGateVia({
+    comments: [apiComment(firstLine('PASS'), '2026-11-01T17:35:30Z', 9101)],
+    reviewComments: [apiInlineComment({ id: 9102, login: 'reviewer-agent', association: 'MEMBER', body: firstLine('PASS') })],
+  })
+  assert.equal(result.ok, true, result.reasons.join('; '))
+  assert.equal(result.verdict.id, 9101, 'the conclusion is the issue comment, not the line-anchored one')
+})
+
+test('#602 (2026-11-01): an inline stop older than the PASS at this tip does not refuse the entry', () => {
+  const result = runGate({ comments: [apiComment(firstLine('PASS'), '2026-11-01T17:35:30Z')], reviewComments: [apiInlineComment({ at: '2026-11-01T17:00:00Z' })] })
+  assert.equal(result.ok, true, result.reasons.join('; '))
+})
+
 test('#602 (2026-11-01): a stop older than the PASS at this tip does not refuse the entry', () => {
   const result = runGate({ comments: [stopComment({ at: '2026-11-01T17:00:00Z' }), apiComment(firstLine('PASS'), '2026-11-01T17:35:30Z')] })
   assert.equal(result.ok, true, result.reasons.join('; '))