diff --git a/docs/plan/dependency-graph.md b/docs/plan/dependency-graph.md
index 5408b1f6..818ffacc 100644
--- a/docs/plan/dependency-graph.md
+++ b/docs/plan/dependency-graph.md
@@ -1,7 +1,7 @@
 # Task Dependency Graph
 
 > **HISTORICAL — cleanup-baseline freeze (closed 2026-07-16 / PR #446).**
-> Not live backlog. Live phases: [../progress/MASTER.md](../progress/MASTER.md).
+> **Not live backlog.** Live program SSOT: [../progress/MASTER.md](../progress/MASTER.md) (post-polish residual Phases 79–80).
 > Snapshot also under [../archives/cleanup-baseline/plan/](../archives/cleanup-baseline/plan/).
 
 ```mermaid
diff --git a/docs/plan/milestones.md b/docs/plan/milestones.md
index f2b4d977..66611a0b 100644
--- a/docs/plan/milestones.md
+++ b/docs/plan/milestones.md
@@ -1,7 +1,8 @@
 # Milestones
 
 > **HISTORICAL — cleanup-baseline freeze (closed 2026-07-16 / PR #446).**
-> Not live backlog. Live phases and open issues: [../progress/MASTER.md](../progress/MASTER.md) (Phase 61 / milestone 82).
+> **Not live backlog.** Do not resume these milestones as open work.
+> Live program SSOT: [../progress/MASTER.md](../progress/MASTER.md) (post-polish residual Phases 79–80 · GH milestones 98–99).
 > Snapshot also under [../archives/cleanup-baseline/plan/](../archives/cleanup-baseline/plan/).
 
 | # | Milestone | Target Phase | Criteria | Status |
@@ -29,7 +30,7 @@
 5. **PR closes Issue**; no freestyle multi-workflow implementation without Issue binding
 6. Workflows/subagents are **executors of Issues**, not a second backlog
 
-## Reality sync (2026-07-18)
+## Reality sync (2026-07-21)
 - Cleanup-baseline program Phases 1–7 closed: issues `#424`–`#451` via PR #446 (2026-07-16).
-- Live tracker SSOT: `docs/progress/MASTER.md` + Project board (Phase 61 / milestone 82).
+- Live tracker SSOT: `docs/progress/MASTER.md` + post-polish plan (Phases 79–80 · issues #1335–#1339).
 - Do not reopen `#447`–`#451` as open work.
diff --git a/docs/plan/post-polish-dependency-graph.md b/docs/plan/post-polish-dependency-graph.md
new file mode 100644
index 00000000..75968844
--- /dev/null
+++ b/docs/plan/post-polish-dependency-graph.md
@@ -0,0 +1,24 @@
+# Dependency Graph — Post-Polish Residual
+
+```mermaid
+flowchart TD
+  subgraph P79[Phase 79 Docs Authority]
+    T791[T79.1 plan banners + MASTER]
+    T792[T79.2 perf gate evidence note]
+    T791 --> T792
+  end
+
+  subgraph P80[Phase 80 Mobile hubClient]
+    T801[T80.1 inventory]
+    T802[T80.2 thin re-export]
+    T803[T80.3 RN boundary note]
+    T801 --> T802 --> T803
+  end
+
+  T791 --> T801
+```
+
+## Parallelism
+
+- B1 (docs) and B2 inventory (T80.1) can start after T79.1 lands; default serial for single-owner velocity.
+- No file overlap between B1 and B2.
diff --git a/docs/plan/post-polish-milestones.md b/docs/plan/post-polish-milestones.md
new file mode 100644
index 00000000..18d38594
--- /dev/null
+++ b/docs/plan/post-polish-milestones.md
@@ -0,0 +1,20 @@
+# Milestones — Post-Polish Residual Hardening
+
+| # | Milestone | Criteria | Status |
+|---|---|---|---|
+| 79 | Docs Authority + Gates Hygiene | plan/* non-live; MASTER sole index; doc SSOT green; perf gate noted | open |
+| 80 | Mobile hubClient Strangler | thin re-export; typecheck green; RN Hub-only boundary documented | open |
+
+## Adaptive control (initial)
+
+```yaml
+adaptive:
+  drift_score: 0
+  strategy: "strangler-mobile-hubclient-docs"
+  thresholds:
+    annotate: 1
+    replan: 2
+    rescope: 3
+  total_tasks: 5
+  completed_tasks: 0
+```
diff --git a/docs/plan/post-polish-task-breakdown.md b/docs/plan/post-polish-task-breakdown.md
new file mode 100644
index 00000000..d6c64c8f
--- /dev/null
+++ b/docs/plan/post-polish-task-breakdown.md
@@ -0,0 +1,45 @@
+# Task Breakdown — Post-Polish Residual Hardening
+
+> last-updated: 2026-07-20
+> program: post-visual-polish residual (after gate 89)
+> tracking: GITHUB_FULL
+> hard rule: **NO big-bang rewrite**; Mobile UI deep refactor out of scope
+> strategy: Strangler Fig — thin mobile hubClient + docs authority
+
+## Overview
+
+| Item | Value |
+|---|---|
+| Total Phases | 2 |
+| Total Tasks | 5 |
+| Strategy | Strangler + Spec-Driven |
+| Super focus | R (Replaceable), P (Ports), E (Environment-agnostic) |
+
+## Phase 79: Docs Authority + Gates Hygiene
+
+| # | Task | Priority | Effort | Depends | Super | Acceptance |
+|---|---|---|---|---|---|---|
+| T79.1 | Strengthen HISTORICAL banners on cleanup-baseline `docs/plan/*`; MASTER becomes sole live index for post-polish | P0 | S | — | E | plan files explicit non-live; MASTER links post-polish analysis; `verify-doc-ssot.ps1` green |
+| T79.2 | Record backend perf gate green + optional workflow_dispatch note in MASTER/roadmap | P1 | S | T79.1 | E | evidence note; no claim of production capacity |
+
+## Phase 80: Mobile hubClient Strangler
+
+| # | Task | Priority | Effort | Depends | Super | Acceptance |
+|---|---|---|---|---|---|---|
+| T80.1 | Inventory mobile-only surface (errors, WS helpers, fixture snapshot) vs shared SSOT methods | P0 | M | T79.1 | P | analysis note in issue/PR; list keep vs re-export |
+| T80.2 | Thin mobile hubClient: re-export shared types/methods; keep mobile-only glue (SecureStore refresh, fixture snapshot, legacy WS types) | P0 | L | T80.1 | R,P | file shrinks; no new REST methods on mobile; `pnpm --filter agenthub-mobile-rn typecheck` (+ focused tests if present) |
+| T80.3 | RN-safe boundary note: Mobile remains Hub-only; no Local Edge; document in AGENTS or mobile README | P1 | S | T80.2 | E,U | docs + existing verify scripts still pass |
+
+## Delivery Batches
+
+| Batch | Tasks | Branch | Rationale |
+|---|---|---|---|
+| B1 | T79.1 + T79.2 | `feat/p79-docs-authority` | docs-only, independent |
+| B2 | T80.1 + T80.2 + T80.3 | `feat/p80-mobile-hubclient-thin` | single mobile API surface PR for reviewability |
+
+## Out of Scope
+
+- Live OIDC / secret rotation / packaged Desktop evidence
+- Full Mobile UI redesign
+- Further Edge handlers split without API change
+- Static Visual QA gate chase past 89
diff --git a/docs/plan/task-breakdown.md b/docs/plan/task-breakdown.md
index 819b8cb0..2ce0ef28 100644
--- a/docs/plan/task-breakdown.md
+++ b/docs/plan/task-breakdown.md
@@ -1,12 +1,13 @@
 # Task Breakdown — AgentHub Cleanup Baseline
 
 > **HISTORICAL — cleanup-baseline freeze (closed 2026-07-16 / PR #446).**
-> Not live backlog. Live phases and open issues: [../progress/MASTER.md](../progress/MASTER.md) (Phase 61 / milestone 82).
+> **Not live backlog.** Do not resume Phases 1–7 or treat #424–#451 as open work.
+> Live program SSOT: [../progress/MASTER.md](../progress/MASTER.md) (post-polish residual Phases 79–80 · issues #1335–#1339).
 > Snapshot also under [../archives/cleanup-baseline/plan/](../archives/cleanup-baseline/plan/).
 >
-> last-updated: 2026-07-18
-> program: knowledge-first strangler cleanup + lightweight wiki (non-SSOT)
-> tracking: GITHUB_FULL (Issues + Milestones + Project board)
+> last-updated: 2026-07-21
+> program: knowledge-first strangler cleanup + lightweight wiki (non-SSOT) — **CLOSED**
+> tracking: historical only; live tracking is GITHUB_FULL via MASTER + post-polish plan
 > hard rule: **NO big-bang rewrite**
 > reality: Phases 1–7 complete (#424–#451 / PR #446). Do not list #447–#451 as open.
 
diff --git a/docs/progress/MASTER.md b/docs/progress/MASTER.md
index 57bb3d9d..614dd7c4 100644
--- a/docs/progress/MASTER.md
+++ b/docs/progress/MASTER.md
@@ -1,20 +1,29 @@
 # AgentHub Progress Tracker
 
-> **Task**: continuous product polish (architecture / UIUX / design system / hygiene)
-> **Started**: 2026-07-16
-> **Last Updated**: 2026-07-20
+> **Task**: post-polish residual hardening (docs authority + mobile hubClient strangler)
+> **Started**: 2026-07-16 (Visual polish); residual program 2026-07-20
+> **Last Updated**: 2026-07-21
 > **Mode**: `GITHUB_FULL`
 > **Repo**: `TokenDanceLab/AgentHub`
 
-## Merged PRs (today, 19 total)
-P74 #1295 · P75 #1310 · P76 #1315 · rescore #1317 ·
-P77 #1319 · P77 #1321 · P77 #1324 · P77 #1325 ·
-P78 #1326 · P78 #1327 · P78 #1328 · P78 #1329 ·
-P78 #1330 · P78 #1331 · infra #1332 · infra #1333 ·
-docs: rescore consolidation + AGENTS.md update + Phase 73/74 close
-deps: dependabot serde_with bump #423
+## Live program (sole index)
 
-## Milestones — ALL CLOSED
+| Item | Value |
+|---|---|
+| Program | Post-Polish Residual Hardening |
+| Analysis SSOT | [post-polish-project-overview](../analysis/post-polish-project-overview.md) · [module-inventory](../analysis/post-polish-module-inventory.md) · [risk-assessment](../analysis/post-polish-risk-assessment.md) |
+| Plan SSOT | [task-breakdown](../plan/post-polish-task-breakdown.md) · [dependency-graph](../plan/post-polish-dependency-graph.md) · [milestones](../plan/post-polish-milestones.md) |
+| Strategy | Strangler Fig — thin mobile hubClient + docs authority; **no** big-bang rewrite; **no** static Visual QA chase past 89 |
+| Tracking | Issues **#1335–#1339** · GH milestones **98** (Phase 79) · **99** (Phase 80) |
+
+### Open phases
+
+| Phase | Name | Milestone | Issues | Status |
+|:------|:-----|:----------|:-------|:-------|
+| 79 | Docs Authority + Gates Hygiene | 98 | #1335 #1336 | in progress |
+| 80 | Mobile hubClient Strangler | 99 | #1337 #1338 #1339 | queued |
+
+### Closed polish phases (2026-07-20)
 
 | Phase | Name | Status |
 |:------|:-----|:-------|
@@ -25,18 +34,16 @@ deps: dependabot serde_with bump #423
 | 77 | Agents density + blank browser + terminal dock | closed |
 | 78 | A11y focus + Glass border/shadows/elevation + CI path-filter | closed |
 
-## References
-- [visual-qa-scorecard](../analysis/visual-qa-scorecard.md) — canonical SSOT (final gate 89)
-- [visual-qa-score-2026-07-20-rescore-17-final.md](../analysis/visual-qa-score-2026-07-20-rescore-17-final.md) — full PR trace
-- [_archive/](../analysis/_archive/) — 16 intermediate rescore files
+Historical cleanup-baseline plan under `docs/plan/task-breakdown.md` (and siblings) is **HISTORICAL only** — not live backlog.
 
-## Final Status
+## Product tip & Visual QA
 
-**Product tip**: `04a28663`
+**Product tip**: see latest `master` (analysis tip at residual start: `4c222e06`)
 **Gate**: **89**/100 — 🟢🟢🟢 **SHIP**
-**Gate history**: 55 → 76 → 79 → 82 → 84 → 85 → 87 → 88 → **89** (+34 in one day)
+**Gate history**: 55 → 76 → 79 → 82 → 84 → 85 → 87 → 88 → **89**
 
 ### Dimension grid (7/9 maxed)
+
 | Dim | Score | Max | Status |
 |-----|-------|-----|--------|
 | Glass | 18 | 18 | ✅ |
@@ -49,16 +56,41 @@ deps: dependabot serde_with bump #423
 | Type | 9 | 10 | ⏳ zh refinement |
 | Motion | 9 | 10 | ⏳ interactive eval |
 
-### Infrastructure wins
-- Unified CI path-filter (`changes` job via dorny/paths-filter@v3)
-- Go-only PR skips frontend CI; CSS-only PR skips Go CI
-- Estimated savings: up to 20 CI minutes per PR
+References: [visual-qa-scorecard](../analysis/visual-qa-scorecard.md) · [rescore-17-final](../analysis/visual-qa-score-2026-07-20-rescore-17-final.md) · [_archive/](../analysis/_archive/)
 
 ### Methodology ceiling
-Remaining 3pt (Type/Motion/Empty) require interactive testing, multi-state data,
-or multi-component CJK font changes — beyond static 1440×810 screenshot evaluation.
+
+Remaining 3pt (Type/Motion/Empty) require interactive testing, multi-state data, or multi-component CJK font changes — beyond static 1440×810 screenshot evaluation. **Do not chase gate past 89** under residual program.
+
+## Infrastructure & gates hygiene
+
+### CI path-filter
+
+- Unified `changes` job (`dorny/paths-filter@v3`) in `.github/workflows/checks.yml`
+- Go-only PR skips frontend CI; CSS-only PR skips Go CI
+- Estimated savings: up to ~20 CI minutes per PR
+
+### Backend perf / leak gates (T79.2 evidence)
+
+| Item | State | Note |
+|---|---|---|
+| `scripts/verify/verify-backend-perf-leak-gates.ps1` | **PASS** (behavior + short microbench) | Not production capacity |
+| [backend-performance-gates.md](../reference/backend-performance-gates.md) | Active owner (dated 2026-06-27) | Evidence classes: behavior / microbench / load smoke / pprof |
+| Capacity claim | **Not claimed** | Load smoke / pprof still path-specific; no “production capacity proven” language |
+
+Optional future: wire script as `workflow_dispatch` only — not every PR (see residual risk assessment T5).
+
+## Explicit out of scope (residual)
+
+- Live OIDC / secret rotation / packaged Desktop evidence
+- Full Mobile UI redesign
+- Static Visual QA gate chase past 89
+- Edge handlers further split without concrete API change
 
 ## Session Log
+
 | Date | Summary |
 |:-----|:--------|
-| 2026-07-20 | 🟢🟢🟢 **FINAL Ship 89** — 19 commits, 7/9 dims maxed, CI optimized, docs consolidated |
+| 2026-07-20 | 🟢🟢🟢 **Ship 89** — polish Phases 73–78 closed; CI path-filter; docs rescore archive |
+| 2026-07-20 | SDD Phase 0–1: post-polish analysis trio committed |
+| 2026-07-21 | Residual program live: MASTER sole index; Phases 79–80 · #1335–#1339 |
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 799013a1..05c2a9b2 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -1,6 +1,6 @@
 # AgentHub Roadmap
 
-最后更新：2026-07-20
+最后更新：2026-07-21
 
 本文档是 AgentHub 的总进度入口，只记录当前方向、优先级和验收边界。历史 longform roadmap 见 [history.md](history.md)。
 
@@ -17,24 +17,23 @@ AgentHub 是 IM 形态的多 Agent 协作工作台。用户面对的是联系人
 
 ## 当前 SPEC
 
-活进度只看 [progress/MASTER.md](progress/MASTER.md)（Phases 73–78 all closed · milestones 94–95 closed · gate 89 Ship）。cleanup-baseline（Phases 0–7）已于 2026-07-16 随 PR [#446](https://github.com/TokenDanceLab/AgentHub/pull/446) 关闭；历史 plan/analysis 快照见 [archives/cleanup-baseline/](archives/cleanup-baseline/) 与 [history.md](history.md)。
+活进度只看 [progress/MASTER.md](progress/MASTER.md)。
 
-**Baseline closed（绝对日期指针，非 live backlog）**：
-
-| Program | Closed | Pointer |
+| Program | Status | Pointer |
 |---|---|---|
-| Cleanup baseline Phases 1–7 | 2026-07-16 / PR #446 | [progress/MASTER.md](progress/MASTER.md) · [archives/cleanup-baseline/](archives/cleanup-baseline/) |
-| Repo Structure Doc Tooling Cleanup | pre-baseline | [history.md](history.md) |
+| **Post-Polish Residual Hardening** (Phases 79–80) | **live** | MASTER · [plan/post-polish-task-breakdown.md](plan/post-polish-task-breakdown.md) · issues #1335–#1339 · GH milestones 98–99 |
+| Visual polish (Phases 73–78) | closed 2026-07-20 · gate **89 Ship** | [analysis/visual-qa-scorecard.md](analysis/visual-qa-scorecard.md) |
+| Cleanup baseline (Phases 0–7) | closed 2026-07-16 / PR [#446](https://github.com/TokenDanceLab/AgentHub/pull/446) | [archives/cleanup-baseline/](archives/cleanup-baseline/) · historical `docs/plan/*` banners |
 
 ## 当前优先级
 
-### P0
+### P0（residual program）
 
 | 方向 | 目标 | 验收 |
 |---|---|---|
-| 文档治理 | active docs 只保留规则、当前 spec（若存在）、总路线、架构和契约入口；重复规则面和历史 longform/审计/发布材料/旧入口快照归档 | `scripts/verify/verify-doc-ssot.ps1` |
+| Docs authority | cleanup `docs/plan/*` 明确 HISTORICAL；MASTER 为 sole live index；post-polish plan 入库 | `scripts/verify/verify-doc-ssot.ps1` + MASTER 链接 #1335–#1339 |
+| Mobile hubClient thin | 再导出 shared SSOT；仅保留 SecureStore/fixture/WS 胶水；禁止 mobile 新增 REST | `pnpm --filter agenthub-mobile-rn typecheck` + focused tests · #1337–#1339 |
 | 真实 E2E 合同 | `.agents/skills/real-e2e-acceptance/SKILL.md` 是唯一证据等级矩阵 | `scripts/verify/verify-real-e2e-contract.ps1` |
-| 远控拓扑前置合同 | P0 remote-control fixture 验证 `Web -> Hub -> Desktop/Edge -> Local Edge -> CLI/SDK adapter` 的离线拓扑形状，不声明真实登录或真实执行 | `scripts/verify/verify-p0-remote-control-fixture.ps1` |
 | Chat flow 可靠性 | 发送不消失、消息线性排序、自动滚动、卡片合并、markdown/table 渲染 | Desktop/Web Playwright + Visual QA |
 | Hub/Edge 安全边界 | TokenDance ID 只做身份，AgentHub 权限由 Hub 本地资源检查决定 | 后端 auth/permission tests + security risk register |
 
@@ -44,17 +43,16 @@ AgentHub 是 IM 形态的多 Agent 协作工作台。用户面对的是联系人
 |---|---|---|
 | Web/Mobile client test lanes | Web 保持 Hub-only；Mobile 只澄清 RN-safe shared contract gate，不做 native/UI 深入重构 | Web data-boundary checks + Mobile mock-Hub/Expo Doctor boundary notes |
 | Desktop packaged boundary | 区分 Vite renderer、Tauri packaged、sidecar、icon、installer/signing | packaged-release gate 或明确 `real_tested=false` |
-| Source/test alignment | Shared transcript/data-mode normalizer 和 Desktop/Web 实现一致 | shared unit + app E2E |
-| Backend performance/leak | 对 Hub EventBus/outbox/scheduler/Redis TTL、Edge lifecycle/store/adapters 建立路径级检查 | [reference/backend-performance-gates.md](reference/backend-performance-gates.md) + `scripts/verify/verify-backend-perf-leak-gates.ps1` |
+| Backend performance/leak | 行为/微基准门禁已绿；不声明生产容量 | [reference/backend-performance-gates.md](reference/backend-performance-gates.md) + `scripts/verify/verify-backend-perf-leak-gates.ps1` **PASS**（非 capacity） |
 | API contract hygiene | REST 以 `api/openapi.yaml` 为准，WS 以 `api/events.md` 为准 | OpenAPI parse + endpoint tests |
 
 ### P2
 
 | 方向 | 目标 | 验收 |
 |---|---|---|
-| Mobile | 暂不做 UI/native 深入重构；只保持现有 required gate 边界清楚 | Expo Web Visual QA + mock-Hub + Expo Doctor，不声明 native/device/real Hub |
-| Release hardening | High 风险关闭或 accepted，依赖漏洞和安全头补齐 | release gate + risk register |
-| Long-term docs | 活跃文档只保留入口/当前事实/owner 链接；历史 session log、审计和旧入口快照归档 | doc SSOT + 人工 review |
+| Mobile UI/native | 暂不做 UI/native 深入重构；只保持 required gate 边界清楚 | Expo Web Visual QA + mock-Hub + Expo Doctor，不声明 native/device/real Hub |
+| Visual residual | Type/Motion/Empty 剩余 3pt — 仅在 interactive methodology 下推进 | 不 chase static gate past 89 |
+| Release hardening | High 风险关闭或 accepted；deploy/client 证据项显式 defer | release gate + risk register |
 
 ## 架构入口