diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7780f803..d2ae1d512 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.3.183 — 2026-10-17
+
+- Opus / Sonnet / Haiku 5.5 的出站过滤对齐 sub2api：历史里出现一块无效 thinking，整段 thinking 与 `redacted_thinking` 都拆掉，只留正文；拆完没有内容的轮删掉。没有 `type` 但带 `thinking` 字段的块也算无效。`redacted_thinking` 有 `data` 就留，否则看签名；非空且非 dummy 的签名不再按 24 字符丢弃。全部有效时不拆。cli-hop 首跳和默认 HTTP 保留路径不变。更早型号仍逐块过滤，`redacted_thinking` 只在签名达到 24 字符时留。
+
+已部署机升级：更新 Node 控制面，重启一次 Node。无迁移、无新依赖，不必 `wrap-cli/sync`，不必重建槽位容器。不要覆盖 `routing.json`、`vms/`、`data/`、`.env`。
+
 ## 未发布
 
 ## 1.3.182 — 2026-10-17
@@ -19,6 +25,7 @@
 
 - 采集客户机 CPU、内存、磁盘、MAC、DMI、Shell 与工具链，写入槽位特征并展示于运维页；终端启动打印实时系统特征。
 - 采集后同步 worker.json 遥测配置至本机或节点，sidecar 热加载，无需重启；官方初装自动开启遥测默认关闭。
+
 - 代理出口地理查询经 SOCKS5 时由代理端解析目标域名（查询路径内将 `socks5://` 规范为 `socks5h:`），避免依赖控制面本地 DNS；IPv4 与 IPv6 两阶段探测一致，不修改已保存代理 URI，HTTP(S) 代理与本地直连行为不变。（#482）
 - 修复 KVM / Docker 槽容器处于 `Restarting` 崩溃循环时被当成运行中：`inspectContainer()` 读取 `State.Restarting`，崩溃循环的容器视为未运行，启动和重载改为重建，不再 `already-running` 短路或对重启中的容器 `docker exec`。新建槽位容器前先 `docker pull` 浮动 tag（`kin-kvm-*` / `kin-os-*`），拉取失败才用本地镜像，旧 runner 镜像可随重建更新；`docker/kin-*/build.mjs --pull` / `--pull-only` 也会刷新已存在的镜像。`kin-kvm-entry` 降权前对容器内 `/dev/kvm` 节点执行 `chmod g+rw`，兼容宿主 `0600` 权限。（#484）
 
diff --git a/VERSION b/VERSION
index 6d9c0f637..4fcd74720 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.182
\ No newline at end of file
+1.3.183
diff --git a/docs/PROTOCOL.md b/docs/PROTOCOL.md
index 536ff5b55..648c9b6fe 100644
--- a/docs/PROTOCOL.md
+++ b/docs/PROTOCOL.md
@@ -111,12 +111,13 @@ Rikka / 客户端 `search_web`、`scrape_web` **不是** Anthropic 自带搜索
 出站前 `stripInvalidThinkingBlocks` 保留可回放的历史思维块：
 
 1. `thinking` 即使文本为空，只要有完整签名也保留；这是 `display: omitted` 的正常响应形态。
-2. `redacted_thinking` 只要带加密 `data` 就原样保留。
-3. 默认其它无签名、短签名或 dummy 签名仍过滤；面板保留路径会保留 thinking 块，并为缺少字段的 `thinking` 补空 `signature`，已有字段不改写，真实性仍由上游校验。
+2. Opus / Sonnet / Haiku 5.5 按 sub2api：非空且非 dummy 的签名都算有效，不看长度；`redacted_thinking` 有 `data` 就留，没有 `data` 时再看签名。历史里只要有一块无效，整段 thinking / `redacted_thinking` 都拆掉，只留正文；拆完没有内容的轮删掉。全部有效时不拆。
+3. 更早的型号仍逐块过滤：签名短于 24、空签名、dummy 签名删掉，合法签名块留下。`redacted_thinking` 不看 `data`，只在签名达到 24 字符时留。
+4. 保留路径（cli-hop 首跳，以及默认 HTTP hop）不走上面的拆链。缺少 `signature` 字段的 `thinking` 补空字段，已有字段不改写。
 
 HTTP hop 与 cli-hop（`prepareCliHopBody`）共用内容预过滤，但职责不同。cli-hop 的首个出站 hop 保留已有 thinking 指纹块，并为缺字段的 thinking 补 `signature: ""`；只有签名修复重试的 `repaired` hop 才清除这些块。Node 清除 caller `cache_control` 后写入最后消息及 `messages.length>=4` 时倒数第二 user 的断点，TTL 用入站会话已 pin 值。native Claude Code CLI 每个 job 热读 slot `kernel.json` 做 persona 布局，自产 system/tools 标记必须沿用同一请求 TTL，不得再从面板独立决策。Rust kernel 只认证、转发和流式传输，不再重打 last。Node 出站 JSON 不是最终 wire。HTTP hop 仍可由 Node 按自己的路由策略整流缓存。
 
-长度够的签名原样转发，由 Anthropic 验。签名是 opaque 加密内容，当前模型 / 账户 / 会话前缀不匹配时可能被丢弃或返回 400 `Invalid \`signature\` in \`thinking\` block`。网关不伪造真实签名，只在面板 / cli-hop 保留路径补齐缺失字段。切换账号时不改写已有签名；`cli-node` 仍按现有登录 / fallback 逻辑清理签名块。
+长度够的签名原样转发，由 Anthropic 验。5.5 的非 dummy 签名也原样转发，不按 24 字符预过滤。签名是 opaque 加密内容，当前模型 / 账户 / 会话前缀不匹配时可能被丢弃或返回 400 `Invalid \`signature\` in \`thinking\` block`。网关不伪造真实签名，只在面板 / cli-hop 保留路径补齐缺失字段。切换账号时不改写已有签名；`cli-node` 仍按现有登录 / fallback 逻辑清理签名块。
 
 `routing.failover.signature_repair=true`（设置页「探测 → 签名修复」）才走 `signature_repairable` 的 `repair-and-retry`（剥 thinking 历史 + 删 `body.thinking` 后重试一次），客户端只看到 200。关闭时包括 cli-hop 在内都原样透传 400；`cli-node` 自身行为不受该面板开关改变。
 
diff --git a/src/lib/protocol/anthropic-policy.mjs b/src/lib/protocol/anthropic-policy.mjs
index db83eea59..717ef4d5c 100644
--- a/src/lib/protocol/anthropic-policy.mjs
+++ b/src/lib/protocol/anthropic-policy.mjs
@@ -14,7 +14,13 @@ import {
   ensureUnofficialEffortHigh,
   downgradeUngatedThinkingDisplay,
 } from './thinking.mjs'
-import { applyMaxTokensCap, applyModelRequestRules, getCapabilities } from './model-policy.mjs'
+import {
+  applyMaxTokensCap,
+  applyModelRequestRules,
+  getCapabilities,
+  isHaiku55Model,
+  isOpus55Model,
+} from './model-policy.mjs'
 import { ensureOutputConfigSchema, rectifyUnofficialRequest } from './request-rectifier.mjs'
 import { DEFAULT_CACHE_TTL, applyCacheBreakpoints, stripCacheScopeFields } from './cache-ttl.mjs'
 import { normalizeImageContentBlocks } from './images.mjs'
@@ -108,6 +114,43 @@ export function hasUsableThinkingSignature(signature) {
   if (!value || value.length < 24) return false
   return !DUMMY_THINKING_SIGNATURES.has(value)
 }
+function signedThinkingModel(model = '') {
+  if (isOpus55Model(model) || isHaiku55Model(model)) return true
+  const bare = String(model || '')
+    .split('[')[0]
+    .split('/')
+    .filter(Boolean)
+    .pop()
+  return /^claude-sonnet-5(?:-5|\.5)(?=-|$)/i.test(bare || '')
+}
+
+/** 5.5 accepts any non-dummy signature. Length is not a checksum. */
+function hasNonDummyThinkingSignature(signature) {
+  const value = String(signature || '').trim()
+  return value.length > 0 && !DUMMY_THINKING_SIGNATURES.has(value)
+}
+
+function dropSignedThinkingChain(messages) {
+  return messages.map((message) => {
+    if (!Array.isArray(message?.content)) return message
+    let dropped = false
+    const content = []
+    for (const block of message.content) {
+      const type = block?.type
+      if (
+        type === 'thinking' ||
+        type === 'redacted_thinking' ||
+        (type == null && block && Object.hasOwn(block, 'thinking'))
+      ) {
+        dropped = true
+        continue
+      }
+      content.push(block)
+    }
+    if (!dropped) return message
+    return { ...message, content }
+  })
+}
 
 function thinkingModeEnabled(body) {
   const type = String(body?.thinking?.type || '').toLowerCase()
@@ -127,11 +170,20 @@ export function alignSamplingWithThinking(body = {}) {
   return out
 }
 
-/** Drop history thinking blocks Anthropic would reject (empty / unsigned / dummy). */
+/**
+ * Drop history thinking blocks Anthropic would reject.
+ * Opus / Sonnet / Haiku 5.5 follow sub2api: one invalid block drops the whole
+ * signed chain, including later valid thinking and redacted_thinking. Turns
+ * left with no content are dropped. redacted_thinking stays when it carries
+ * data on 5.5, otherwise when its signature is usable. The preserve path is
+ * unchanged.
+ */
 export function stripInvalidThinkingBlocks(body = {}, { preserveThinkingBlocks = false } = {}) {
   if (!Array.isArray(body.messages)) return body
   const keepSigned = thinkingModeEnabled(body)
+  const chainModel = !preserveThinkingBlocks && signedThinkingModel(body.model)
   let changed = false
+  let chainBroken = false
   const messages = body.messages.map((message) => {
     if (!Array.isArray(message?.content)) return message
     const content = []
@@ -151,25 +203,41 @@ export function stripInvalidThinkingBlocks(body = {}, { preserveThinkingBlocks =
             }
             continue
           }
-          if (type === 'redacted_thinking' && String(block.data || '').trim()) {
+          if (chainModel && chainBroken) {
+            changed = true
+            filteredThis = true
+            continue
+          }
+          if (type === 'redacted_thinking' && chainModel && String(block.data || '').trim()) {
             content.push(block)
             continue
           }
-          if (type === 'thinking' && hasUsableThinkingSignature(block.signature)) {
+          const signed = chainModel
+            ? hasNonDummyThinkingSignature(block.signature)
+            : hasUsableThinkingSignature(block.signature)
+          if (signed) {
             content.push(block)
             continue
           }
+          if (chainModel) chainBroken = true
         }
         changed = true
         filteredThis = true
         continue
       }
+      if (type == null && block && Object.hasOwn(block, 'thinking')) {
+        changed = true
+        filteredThis = true
+        if (chainModel) chainBroken = true
+        continue
+      }
       content.push(block)
     }
     return filteredThis ? { ...message, content } : message
   })
-  if (!changed) return dropEmptySystemControlTurns(body)
-  const withoutEmpty = messages.filter(
+  const stripped = chainBroken ? dropSignedThinkingChain(messages) : messages
+  if (!changed && !chainBroken) return dropEmptySystemControlTurns(body)
+  const withoutEmpty = stripped.filter(
     (message) => !anthropicContentIsEmpty(message?.content) || messageHasTurnControls(message),
   )
   return dropEmptySystemControlTurns({ ...body, messages: mergeConsecutiveAnthropicMessages(withoutEmpty) })
diff --git a/test/unit/anthropic-policy.test.mjs b/test/unit/anthropic-policy.test.mjs
index 118627146..1b8058db7 100644
--- a/test/unit/anthropic-policy.test.mjs
+++ b/test/unit/anthropic-policy.test.mjs
@@ -2,6 +2,7 @@ import test from 'node:test'
 import assert from 'node:assert/strict'
 import {
   prepareAnthropicRequest,
+  stripInvalidThinkingBlocks,
   rewriteToolNames,
   restoreToolNames,
   restoreToolNamesInSSELine,
@@ -124,7 +125,7 @@ test('unsigned and empty thinking blocks are stripped before hop', () => {
     { type: 'text', text: 'answer' },
   ])
 })
-test('preserves omitted signed and redacted thinking blocks', () => {
+test('older models keep a long omitted signature and drop redacted thinking', () => {
   const body = prepareAnthropicRequest({
     model: 'claude-opus-5',
     thinking: { type: 'adaptive' },
@@ -141,10 +142,173 @@ test('preserves omitted signed and redacted thinking blocks', () => {
   })
   assert.deepEqual(body.messages[0].content, [
     { type: 'thinking', thinking: '', signature: 'sig_omitted_12345678901234567890' },
-    { type: 'redacted_thinking', data: 'encrypted-thinking' },
     { type: 'text', text: 'answer' },
   ])
 })
+test('5.5 drops the whole signed chain after one invalid block', () => {
+  const messages = [
+    { role: 'user', content: [{ type: 'text', text: 'a' }] },
+    {
+      role: 'assistant',
+      content: [
+        { type: 'thinking', thinking: 'old', signature: '' },
+        { type: 'text', text: 'answer' },
+      ],
+    },
+    { role: 'user', content: [{ type: 'text', text: 'b' }] },
+    {
+      role: 'assistant',
+      content: [
+        { type: 'thinking', thinking: 'later', signature: 'sig_real_1234567890abcdef' },
+        { type: 'redacted_thinking', data: 'encrypted' },
+        { type: 'text', text: 'later answer' },
+      ],
+    },
+    {
+      role: 'assistant',
+      content: [{ type: 'thinking', thinking: 'only thought', signature: 'sig_real_1234567890abcdef' }],
+    },
+  ]
+  for (const model of ['claude-opus-5-5', 'anthropic/claude-sonnet-5.5', 'claude-haiku-5-5']) {
+    const body = stripInvalidThinkingBlocks({
+      model,
+      thinking: { type: 'adaptive' },
+      messages,
+    })
+    assert.deepEqual(
+      body.messages.map((message) => message.content.map((block) => block.text || block.type)),
+      [['a'], ['answer'], ['b'], ['later answer']],
+      model,
+    )
+  }
+  const older = stripInvalidThinkingBlocks({
+    model: 'claude-opus-5',
+    thinking: { type: 'adaptive' },
+    messages,
+  })
+  assert.deepEqual(
+    older.messages[3].content.map((block) => block.type),
+    ['thinking', 'text', 'thinking'],
+  )
+})
+
+test('5.5 keeps a lone redacted block and a short non-dummy signature', () => {
+  const kept = stripInvalidThinkingBlocks({
+    model: 'claude-sonnet-5-5',
+    thinking: { type: 'adaptive' },
+    messages: [
+      {
+        role: 'assistant',
+        content: [
+          { type: 'thinking', thinking: '', signature: 'signed' },
+          { type: 'redacted_thinking', data: 'encrypted' },
+          { type: 'text', text: 'ok' },
+        ],
+      },
+    ],
+  })
+  assert.deepEqual(
+    kept.messages[0].content.map((block) => block.type),
+    ['thinking', 'redacted_thinking', 'text'],
+  )
+  const dropped = stripInvalidThinkingBlocks({
+    model: 'claude-opus-5-5',
+    thinking: { type: 'adaptive' },
+    messages: [
+      {
+        role: 'assistant',
+        content: [{ type: 'redacted_thinking' }, { type: 'text', text: 'Visible' }],
+      },
+    ],
+  })
+  assert.deepEqual(dropped.messages[0].content, [{ type: 'text', text: 'Visible' }])
+  const older = stripInvalidThinkingBlocks({
+    model: 'claude-opus-5',
+    thinking: { type: 'adaptive' },
+    messages: [
+      {
+        role: 'assistant',
+        content: [
+          { type: 'redacted_thinking', data: 'encrypted' },
+          { type: 'text', text: 'Visible' },
+        ],
+      },
+    ],
+  })
+  assert.deepEqual(older.messages[0].content, [{ type: 'text', text: 'Visible' }])
+  for (const model of ['claude-opus-5-5', 'claude-opus-5']) {
+    const signed = stripInvalidThinkingBlocks({
+      model,
+      thinking: { type: 'adaptive' },
+      messages: [
+        {
+          role: 'assistant',
+          content: [
+            { type: 'redacted_thinking', signature: 'sig_real_1234567890abcdef' },
+            { type: 'text', text: 'kept' },
+          ],
+        },
+      ],
+    })
+    assert.deepEqual(
+      signed.messages[0].content.map((block) => block.type),
+      ['redacted_thinking', 'text'],
+      model,
+    )
+  }
+})
+
+test('5.5 preserve path still keeps an invalid signed chain', () => {
+  const body = stripInvalidThinkingBlocks(
+    {
+      model: 'claude-opus-5-5',
+      thinking: { type: 'adaptive' },
+      messages: [
+        {
+          role: 'assistant',
+          content: [
+            { type: 'thinking', thinking: 'old', signature: '' },
+            { type: 'thinking', thinking: 'later', signature: 'sig_real_1234567890abcdef' },
+            { type: 'redacted_thinking', data: 'encrypted' },
+            { type: 'text', text: 'answer' },
+          ],
+        },
+      ],
+    },
+    { preserveThinkingBlocks: true },
+  )
+  assert.deepEqual(
+    body.messages[0].content.map((block) => block.type),
+    ['thinking', 'thinking', 'redacted_thinking', 'text'],
+  )
+})
+test('an untyped thinking block breaks a valid 5.5 chain and is dropped on older models', () => {
+  const messages = [
+    {
+      role: 'assistant',
+      content: [
+        { type: 'thinking', thinking: 'kept', signature: 'sig_real_1234567890abcdef' },
+        { thinking: 'bad' },
+        { type: 'text', text: 'answer' },
+      ],
+    },
+  ]
+  const newer = stripInvalidThinkingBlocks({
+    model: 'claude-opus-5-5',
+    thinking: { type: 'adaptive' },
+    messages,
+  })
+  assert.deepEqual(newer.messages[0].content, [{ type: 'text', text: 'answer' }])
+  const older = stripInvalidThinkingBlocks({
+    model: 'claude-opus-5',
+    thinking: { type: 'adaptive' },
+    messages,
+  })
+  assert.deepEqual(
+    older.messages[0].content.map((block) => block.type || 'untyped'),
+    ['thinking', 'text'],
+  )
+})
 
 test('panel preservation creates a missing thinking signature field', () => {
   const body = prepareAnthropicRequest(
diff --git a/test/unit/cli-hop-body.test.mjs b/test/unit/cli-hop-body.test.mjs
index b7bc751ce..80a8fb823 100644
--- a/test/unit/cli-hop-body.test.mjs
+++ b/test/unit/cli-hop-body.test.mjs
@@ -157,7 +157,7 @@ test('prepareCliHopBody keeps existing signatures and fills missing ones', () =>
   ])
 })
 
-test('prepareCliHopBody drops an assistant turn that is only unsigned thinking', () => {
+test('prepareCliHopBody keeps a short non-dummy signature on Opus 5.5', () => {
   const body = prepareCliHopBody({
     model: 'claude-opus-5.5',
     max_tokens: 64000,
@@ -174,12 +174,9 @@ test('prepareCliHopBody drops an assistant turn that is only unsigned thinking',
   assert.equal(body.model, 'claude-opus-5-5')
   assert.deepEqual(
     body.messages.map((message) => message.role),
-    ['user'],
+    ['user', 'assistant', 'user'],
   )
-  assert.deepEqual(body.messages.at(-1).content, [
-    { type: 'text', text: 'first' },
-    { type: 'text', text: 'continue', cache_control: { type: 'ephemeral', ttl: '1h' } },
-  ])
+  assert.deepEqual(body.messages[1].content, [{ type: 'thinking', thinking: 'draft only', signature: 'abc' }])
 })
 
 test('prepareCliHopBody repaired does not refill thinking after signature downgrade', () => {
diff --git a/test/unit/mid-convo-effort.test.mjs b/test/unit/mid-convo-effort.test.mjs
index f496dd288..0f7d508d2 100644
--- a/test/unit/mid-convo-effort.test.mjs
+++ b/test/unit/mid-convo-effort.test.mjs
@@ -271,7 +271,7 @@ test('withRequestProtocolBetas derives mid-conversation-output-config from messa
   assert.deepEqual(withRequestProtocolBetas(['caller-beta'], { model: 'claude-sonnet-4-6' }), ['caller-beta'])
 })
 
-test('thinking strip keeps empty system effort controls on Opus 5.5', () => {
+test('thinking strip keeps empty system effort controls and a valid short signature on Opus 5.5', () => {
   const body = stripInvalidThinkingBlocks({
     model: 'claude-opus-5-5',
     thinking: { type: 'adaptive' },
@@ -287,7 +287,7 @@ test('thinking strip keeps empty system effort controls on Opus 5.5', () => {
   })
   assert.equal(
     body.messages.some((message) => message.role === 'assistant'),
-    false,
+    true,
   )
   assert.equal(
     body.messages.some((message) => message.content?.[0]?.text === 'reminder'),