diff --git a/.planning/STATE.md b/.planning/STATE.md
index 339506c..756916b 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -1,3 +1,18 @@
+---
+gsd_state_version: 1.0
+milestone: v1.0
+milestone_name: milestone
+status: ready_to_plan
+last_updated: 2026-05-21T13:59:55.225Z
+progress:
+  total_phases: 5
+  completed_phases: 0
+  total_plans: 2
+  completed_plans: 2
+  percent: 0
+stopped_at: Phase 01 complete (2/2) — ready to discuss Phase 2
+---
+
 # STATE
 
 **状态日期：** 2026-05-21  
@@ -8,7 +23,7 @@
 参见：`.planning/PROJECT.md`（更新于 2026-05-21）
 
 **核心价值：** 稳定可用的 EPUB/TXT 阅读体验  
-**当前关注：** Phase 1（对齐现状、边界与重构切入点）
+**当前关注：** Phase 2（重构 typesetter 与 CSS 分层）待 planning / execute
 
 ## 当前结论（摘要）
 
@@ -39,4 +54,5 @@
 
 ## 下一步
 
-- 运行：`$gsd-plan-phase 1`（为“旧引擎直接重构”版本的 Phase 1 生成可执行计划）
+- 运行：`$gsd-plan-phase 2`（为旧引擎的 WXRead 风格 typesetter / CSS 分层重构生成可执行计划）
+- 已完成的 Phase 1 产物目录：`.planning/phases/01-current-engine-boundaries/`
diff --git a/.planning/phases/01-current-engine-boundaries/01-VERIFICATION.md b/.planning/phases/01-current-engine-boundaries/01-VERIFICATION.md
new file mode 100644
index 0000000..b6f7b5c
--- /dev/null
+++ b/.planning/phases/01-current-engine-boundaries/01-VERIFICATION.md
@@ -0,0 +1,79 @@
+---
+phase: 01-current-engine-boundaries
+verified: 2026-05-21T13:59:30Z
+status: passed
+score: 4/4 must-haves verified
+---
+
+# Phase 01: Current Engine Boundaries Verification Report
+
+**Phase Goal:** 把“当前旧引擎是什么、哪些能力必须保留、哪些路径绝对不能动”说清楚，形成直接重构旧引擎的实施基线。  
+**Verified:** 2026-05-21T13:59:30Z  
+**Status:** passed
+
+## Goal Achievement
+
+### Observable Truths
+
+| # | Truth | Status | Evidence |
+|---|-------|--------|----------|
+| 1 | 能准确描述当前 `.textReflowable` 的真实调用链与数据流 | ✓ VERIFIED | `.planning/phases/01-current-engine-boundaries/01-reflowable-audit.md` 明确给出 `RDURLReaderController -> RDEPUBReaderController -> RDEPUBTextBookBuilder -> RDEPUBDTCoreTextRenderer -> ss_pageRanges(size:) -> RDEPUBTextContentView -> RDReaderView` 链路。 |
+| 2 | Fixed Layout / 交互式 EPUB 的 `WKWebView` 边界不含糊，且不被纳入本次重构 | ✓ VERIFIED | 审计文档 “What Still Uses WKWebView” 与策略文档 “`WKWebView` retention boundary” 均列出 `webFixedLayout`、`webInteractive`、`RDEPUBWebView+FixedLayout.swift`、`RDEPUBWebView+Reflowable.swift`、`RDEPUBPaginator.swift`。 |
+| 3 | 当前翻页代码（`RDReaderView`）被明确排除在本次改造范围外 | ✓ VERIFIED | 两份文档都把 `RDReaderView` 记录为稳定外壳；策略文档明确列出“修改 `RDReaderView` 的外部容器契约”为拒绝项。 |
+| 4 | 输出一份针对“旧引擎直接演进”的重构切入策略，而不是双引擎方案 | ✓ VERIFIED | `.planning/phases/01-current-engine-boundaries/01-refactor-entry-strategy.md` 明确给出 Phase 2 / 3 / 4 顺序和 “direct evolution, not parallel engine” 结论。 |
+
+**Score:** 4/4 truths verified
+
+### Required Artifacts
+
+| Artifact | Expected | Status | Details |
+|----------|----------|--------|---------|
+| `.planning/phases/01-current-engine-boundaries/01-reflowable-audit.md` | 当前 native reflowable 调用链与边界审计 | ✓ EXISTS + SUBSTANTIVE | 文档内容覆盖入口、分流、渲染、分页、展示、兼容层和排除项。 |
+| `.planning/phases/01-current-engine-boundaries/01-refactor-entry-strategy.md` | 旧引擎直接演进切入策略 | ✓ EXISTS + SUBSTANTIVE | 文档内容覆盖 capability mapping、phase sequencing、兼容面和非目标。 |
+| `.planning/phases/01-current-engine-boundaries/01-01-SUMMARY.md` | 审计计划执行总结 | ✓ EXISTS + SUBSTANTIVE | 记录 Wave 1 产出与决策。 |
+| `.planning/phases/01-current-engine-boundaries/01-02-SUMMARY.md` | 策略计划执行总结 | ✓ EXISTS + SUBSTANTIVE | 记录 Wave 2 产出与后续 readiness。 |
+
+**Artifacts:** 4/4 verified
+
+### Key Link Verification
+
+| From | To | Via | Status | Details |
+|------|----|----|--------|---------|
+| `01-reflowable-audit.md` | current source files | file-path evidence | ✓ WIRED | 审计文档逐段引用 `RDEPUBReaderController.swift`、`RDEPUBTextBookBuilder.swift`、`RDEPUBParser+ReadingProfile.swift`、`RDReaderView.swift`。 |
+| `01-refactor-entry-strategy.md` | `01-reflowable-audit.md` | strategy derives from audit findings | ✓ WIRED | 策略文档直接以审计结论为 Phase 2/3/4 输入，避免重新定义边界。 |
+| Phase 1 summaries | roadmap progress | `roadmap.update-plan-progress 01` | ✓ WIRED | `ROADMAP.md` 已显示 Phase 1 为 `2/2 | Complete | 2026-05-21`。 |
+| Phase 1 requirement | requirements traceability | `requirements.mark-complete COMP-02` | ✓ WIRED | `REQUIREMENTS.md` 中 `COMP-02` 已标记为 complete。 |
+
+**Wiring:** 4/4 connections verified
+
+## Requirements Coverage
+
+| Requirement | Status | Blocking Issue |
+|-------------|--------|----------------|
+| COMP-02: Fixed Layout EPUB 与交互式 EPUB 继续使用 `WKWebView`，行为不因本次改造产生回归 | ✓ SATISFIED | - |
+
+**Coverage:** 1/1 requirements satisfied
+
+## Anti-Patterns Found
+
+None
+
+## Human Verification Required
+
+None — all Phase 1 deliverables are documentary and verifiable by source/document inspection.
+
+## Gaps Summary
+
+**No gaps found.** Phase goal achieved. Ready to proceed.
+
+## Verification Metadata
+
+**Verification approach:** Goal-backward, using roadmap success criteria plus plan must-haves  
+**Must-haves source:** Phase 1 PLAN frontmatter + ROADMAP success criteria  
+**Automated checks:** file existence, grep coverage, roadmap progress sync  
+**Human checks required:** 0  
+**Total verification time:** ~2 min
+
+---
+*Verified: 2026-05-21T13:59:30Z*  
+*Verifier: inline executor*