diff --git a/progress.md b/progress.md
index ef22e69..08c3ced 100644
--- a/progress.md
+++ b/progress.md
@@ -138,6 +138,11 @@
 | 2026-05-25 | `pnpm build` | PASS | Phase 5 unknown enum 修复后前端构建通过 |
 | 2026-05-25 | `go test ./...` | PASS | Phase 5 unknown enum 修复未改 Go 行为；全量 Go 回归通过 |
 | 2026-05-25 | `git diff --check` | PASS | Phase 5 unknown enum 修复 whitespace 检查通过 |
+| 2026-05-25 | `pnpm test` | FAIL | TDD 红灯：`in_progress` workflow phase 被过滤，返回 0 个阶段 |
+| 2026-05-25 | `pnpm test` | PASS | 未知 workflow phase status 保留显示，label 为“未知”；共 10 个前端单测通过 |
+| 2026-05-25 | `pnpm build` | PASS | Phase 5 unknown workflow phase 修复后前端构建通过 |
+| 2026-05-25 | `go test ./...` | PASS | Phase 5 unknown workflow phase 修复未改 Go 行为；全量 Go 回归通过 |
+| 2026-05-25 | `git diff --check` | PASS | Phase 5 unknown workflow phase 修复 whitespace 检查通过 |
 
 ## Bug Loop
 
@@ -163,3 +168,4 @@
 | 5 | workflow phases 会把 `task_plan.md` 里错误记录表的 `Time/Phase` 行显示到 UI | normalizer 过滤非阶段状态，并把数字阶段名转为“阶段 N” | `pnpm test` PASS |
 | 5 | valid agent 状态只显示“已读取”，且工作流/智能体可见文案残留内部英文 | normalizer 改为“TOML 有效”/“TOML 无效”，角色设定字段改中文，WorkflowView 改“交接边”和“主智能体” | `pnpm test` PASS |
 | 5 | 未知后端枚举值可通过 source/confidence/status/trust label 暴露到 UI | 未知 source 显示“来源未知”，未知 confidence 显示“低”，未知 status/trust 显示“未知” | `pnpm test` PASS |
+| 5 | 未知 workflow phase status 被白名单过滤，真实阶段从 UI 消失 | phase 过滤改为只排除表头/伪行，未知 status 交给中文状态兜底显示“未知” | `pnpm test` PASS |
diff --git a/task_plan.md b/task_plan.md
index ebc439f..3ca180e 100644
--- a/task_plan.md
+++ b/task_plan.md
@@ -38,3 +38,4 @@
 | 2026-05-25 | 5 | 规格复审发现 UI 残留英文 `agent` 和 `Codex home` | 改为“智能体”和“Codex 主目录”，并补中文文案测试 | 待复审 |
 | 2026-05-25 | 5 | 规格审查发现 valid agent 未明确显示 TOML 状态，且 UI 仍有 `handoffEdges`、`主 agent`、`developer_instructions` 可见文案 | TDD 补 valid agent 状态和 workflow 空交接文案测试后修复 normalizer 与 WorkflowView 文案 | 待复审 |
 | 2026-05-25 | 5 | 代码质量审查发现未知后端枚举值会直接暴露到 UI | TDD 补 unknown source/confidence/status/trust 测试后将未知 label 统一降级为中文兜底 | 待复审 |
+| 2026-05-25 | 5 | 质量复审发现未知 workflow phase status 会导致真实阶段被过滤消失 | TDD 补 `in_progress` phase 测试后只过滤表头/伪行，未知状态显示“未知” | 待复审 |
diff --git a/web/src/api/normalizers.js b/web/src/api/normalizers.js
index 70951cf..5805f95 100644
--- a/web/src/api/normalizers.js
+++ b/web/src/api/normalizers.js
@@ -48,8 +48,6 @@ const TRUST_LABELS = {
   unknown: '未知',
 }
 
-const PHASE_STATUSES = new Set(['blocked', 'complete', 'done', 'failed', 'pending', 'running', 'unknown'])
-
 export function formatSourceKind(kind) {
   if (!kind) {
     return '来源未知'
@@ -308,7 +306,18 @@ function quote(value) {
 }
 
 function isDisplayPhase(phase) {
-  return PHASE_STATUSES.has(phase?.status || 'unknown')
+  const name = String(phase?.name ?? '').trim().toLowerCase()
+  const status = String(phase?.status ?? '').trim().toLowerCase()
+  if (!name) {
+    return false
+  }
+  if (name === 'phase' || status === 'status') {
+    return false
+  }
+  if (name === 'time' && status === 'phase') {
+    return false
+  }
+  return true
 }
 
 function normalizePhaseName(name) {
diff --git a/web/src/api/normalizers.test.mjs b/web/src/api/normalizers.test.mjs
index fa03cdf..3a16d3d 100644
--- a/web/src/api/normalizers.test.mjs
+++ b/web/src/api/normalizers.test.mjs
@@ -149,3 +149,18 @@ test('filters non-phase rows from workflow phase display', () => {
   assert.equal(workflow.phases[0].name, '阶段 5')
   assert.equal(workflow.phases[0].label, '待处理')
 })
+
+test('keeps workflow phases with unknown backend status visible', () => {
+  const workflow = normalizeWorkflow({
+    items: [],
+    handoffEdges: [],
+    phases: [
+      { name: '5', status: 'in_progress', source: { kind: 'plan_file', confidence: 'medium' } },
+    ],
+    source: { kind: 'plan_file', confidence: 'medium' },
+  })
+
+  assert.equal(workflow.phases.length, 1)
+  assert.equal(workflow.phases[0].name, '阶段 5')
+  assert.equal(workflow.phases[0].label, '未知')
+})