diff --git a/Taskfile.yml b/Taskfile.yml
index 4629d5d..48da8ff 100644
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -67,6 +67,14 @@ tasks:
       - task: lint
       - task: test
 
+  sdk:check:
+    desc: 四种 SDK 检查（缺工具链则跳过并提示）
+    cmds:
+      - cmd: powershell -NoProfile -File taskfiles/sdk-check.ps1
+        platforms: [windows]
+      - cmd: sh taskfiles/sdk-check.sh
+        platforms: [linux, darwin]
+
   itest:
     desc: 运行集成测试（含后台网页 Playwright e2e）
     cmds:
diff --git a/docs/DEVIATIONS.md b/docs/DEVIATIONS.md
index b195489..5e9e6be 100644
--- a/docs/DEVIATIONS.md
+++ b/docs/DEVIATIONS.md
@@ -1198,6 +1198,15 @@
 - 备选方案：沿用异常文本回退与 JS 双重翻倍；否决。
 - 影响：仅 sdk/java。
 
+### 复审修复 K-05
+
+- 日期：2026-09-30
+- 原条款：issue #62；D30 Go SDK 与服务端 Go 版本相同；TASKS 4.2 Taskfile 由总控维护。
+- 实际做法：`Taskfile.yml` 增加 `sdk:check`，Windows 跑 `taskfiles/sdk-check.ps1`、Unix 跑 `taskfiles/sdk-check.sh`（go fmt/vet/test、js tsc+vitest、python unittest、java mvn test）；工具链或 paho-mqtt / node_modules 不存在时打印 skip 不失败。内联 PowerShell 会和 Task 的 `function` 语法冲突，故拆成脚本。`sdk/go/go.mod` 的 `go 1.27.1` 改为 `go 1.27`。`docs/RELEASE.md` 与 `docs/TASKS.md` 第 1 节写明发布前跑 `task sdk:check`。未把 `sdk:check` 挂进根 `task check`（避免无 Node/Maven/Python 的机器无法过服务端门禁）。
+- 原因：根 `go test ./...` 不含独立模块 sdk/go；四套 SDK 原先不在任何检查里。
+- 备选方案：`task check` 强制依赖四套工具链；否决。
+- 影响：Taskfile、sdk/go/go.mod、RELEASE/TASKS 各一行。
+
 ## SDK 二 S2
 
 ### S2-PY/JAVA 1–3 2026-09-30
diff --git a/docs/RELEASE.md b/docs/RELEASE.md
index 93ad1f8..bdc23bb 100644
--- a/docs/RELEASE.md
+++ b/docs/RELEASE.md
@@ -134,7 +134,7 @@
 - 配置项、备份、升级、证书、时钟、指标：[docs/OPS.md](./OPS.md)
 - 配置样例：`deploy/config.example.yaml`、`deploy/config.docker.yaml`
 
-常用入口：`task check` / `task build`，然后 `admin init` + `serve`（见 README）。
+常用入口：`task check` / `task sdk:check` / `task build`，然后 `admin init` + `serve`（见 README）。发布前须执行 `task sdk:check`。
 
 ## 6. 未发布 SDK 包与镜像的原因
 
diff --git a/docs/TASKS.md b/docs/TASKS.md
index b12b972..7701905 100644
--- a/docs/TASKS.md
+++ b/docs/TASKS.md
@@ -14,7 +14,7 @@
 
 下面全部满足才算交付：
 
-1. `main` 上 `task check`（构建、代码检查、单元测试）和全部集成测试通过。
+1. `main` 上 `task check`（构建、代码检查、单元测试）和全部集成测试通过。发布前另跑 `task sdk:check`（四种 SDK；缺工具链则跳过）。
 2. PRD 第 10 节 F01–F23 每条都有验收结果：通过；或未测，写明原因，列进交付说明供负责人事后审阅。
 3. 四种 SDK 都通过 DEVELOPMENT 第 9 节的接入清单。
 4. DEVELOPMENT 第 13 节的弱网、崩溃、压测、端到端测试做完并有报告。
diff --git a/sdk/go/go.mod b/sdk/go/go.mod
index 50f480a..f1ae958 100644
--- a/sdk/go/go.mod
+++ b/sdk/go/go.mod
@@ -1,6 +1,6 @@
 module git.asio.asia/nixevol/NixMsg/sdk/go
 
-go 1.27.1
+go 1.27
 
 require (
 	github.com/eclipse/paho.golang v0.23.0
diff --git a/taskfiles/sdk-check.ps1 b/taskfiles/sdk-check.ps1
new file mode 100644
index 0000000..c37acf5
--- /dev/null
+++ b/taskfiles/sdk-check.ps1
@@ -0,0 +1,59 @@
+$Skip = { param($n, $r) Write-Host ("skip " + $n + ": " + $r) }
+
+if (Get-Command go -ErrorAction SilentlyContinue) {
+    Push-Location sdk/go
+    $unfmt = gofmt -l .
+    if ($unfmt) {
+        Write-Host $unfmt
+        Pop-Location
+        exit 1
+    }
+    go vet ./...
+    if ($LASTEXITCODE -ne 0) { Pop-Location; exit $LASTEXITCODE }
+    go test ./...
+    if ($LASTEXITCODE -ne 0) { Pop-Location; exit $LASTEXITCODE }
+    Pop-Location
+} else {
+    & $Skip "sdk/go" "no go"
+}
+
+if ((Get-Command node -ErrorAction SilentlyContinue) -and (Test-Path "sdk/js/node_modules")) {
+    Push-Location sdk/js
+    npx --no-install tsc --noEmit
+    if ($LASTEXITCODE -ne 0) { Pop-Location; exit $LASTEXITCODE }
+    npx --no-install vitest run
+    if ($LASTEXITCODE -ne 0) { Pop-Location; exit $LASTEXITCODE }
+    Pop-Location
+} else {
+    & $Skip "sdk/js" "no node or node_modules"
+}
+
+$py = Get-Command python -ErrorAction SilentlyContinue
+if (-not $py) {
+    $py = Get-Command python3 -ErrorAction SilentlyContinue
+}
+if ($py) {
+    $env:PYTHONPATH = (Resolve-Path "sdk/python/src").Path
+    & $py.Source -c "import paho.mqtt.client"
+    if ($LASTEXITCODE -ne 0) {
+        & $Skip "sdk/python" "no paho-mqtt"
+    } else {
+        & $py.Source -m unittest discover -s sdk/python/tests -t sdk/python
+        if ($LASTEXITCODE -ne 0) {
+            Remove-Item Env:PYTHONPATH -ErrorAction SilentlyContinue
+            exit $LASTEXITCODE
+        }
+    }
+    Remove-Item Env:PYTHONPATH -ErrorAction SilentlyContinue
+} else {
+    & $Skip "sdk/python" "no python"
+}
+
+if (Get-Command mvn -ErrorAction SilentlyContinue) {
+    Push-Location sdk/java
+    mvn -q test
+    if ($LASTEXITCODE -ne 0) { Pop-Location; exit $LASTEXITCODE }
+    Pop-Location
+} else {
+    & $Skip "sdk/java" "no mvn"
+}
diff --git a/taskfiles/sdk-check.sh b/taskfiles/sdk-check.sh
new file mode 100644
index 0000000..3238a35
--- /dev/null
+++ b/taskfiles/sdk-check.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+set -e
+skip() { echo "skip $1: $2"; }
+
+if command -v go >/dev/null 2>&1; then
+  (cd sdk/go && test -z "$(gofmt -l .)" && go vet ./... && go test ./...)
+else
+  skip sdk/go "no go"
+fi
+
+if command -v node >/dev/null 2>&1 && [ -d sdk/js/node_modules ]; then
+  (cd sdk/js && npx --no-install tsc --noEmit && npx --no-install vitest run)
+else
+  skip sdk/js "no node or node_modules"
+fi
+
+if command -v python3 >/dev/null 2>&1; then
+  PY=python3
+elif command -v python >/dev/null 2>&1; then
+  PY=python
+else
+  PY=
+fi
+if [ -n "$PY" ]; then
+  if PYTHONPATH=sdk/python/src "$PY" -c "import paho.mqtt.client" >/dev/null 2>&1; then
+    PYTHONPATH=sdk/python/src "$PY" -m unittest discover -s sdk/python/tests -t sdk/python
+  else
+    skip sdk/python "no paho-mqtt"
+  fi
+else
+  skip sdk/python "no python"
+fi
+
+if command -v mvn >/dev/null 2>&1; then
+  (cd sdk/java && mvn -q test)
+else
+  skip sdk/java "no mvn"
+fi