S00-020: Record blocked task and remediation handoff

Changes: Preserve incomplete work and blocker metadata for S00-020. This checkpoint does not mark implementation accepted.
Validation: Session ended with status blocked.
Blocker: Previous runner session was interrupted before submit/escalate; processes stopped. User now explicitly requests resuming development. Preserve partial artifacts, verify them in a fresh bounded remediation, and return original to a new executor only after independent review.

Task: S00-020
Agent: auto-ci-cd-5a18c8aa1b42
Role: ci-cd
Action: claim
Status: blocked

Task title: Restore access to the pinned Linux XMPP experiment toolchain

planning/ROADMAP.md

@@ -6,7 +6,7 @@
 
 Зафиксировать Web scope, browser targets и проверенные кандидаты, не устанавливая непроверенный framework по догадке.
 
-Задач: 23; entry: нет; exit: S00-010.
+Задач: 24; entry: нет; exit: S00-010.
 
 ## [S01: Предметные контракты](stages/S01.md)
 

planning/TASK_MATRIX.md

@@ -1,6 +1,6 @@
 # Матрица задач
 
-Generated; state revision **64**. Canonical status: state/tasks.json.
+Generated; state revision **65**. Canonical status: state/tasks.json.
 
 | ID | Этап | Оператор | Reviewer | Статус | Owner | Зависимости | Задача |
 | --- | --- | --- | --- | --- | --- | --- | --- |
@@ -22,10 +22,11 @@ Generated; state revision **64**. Canonical status: state/tasks.json.
 | [S00-017](tasks/S00-017.md) | S00 | protocol | security | done | auto-protocol-599343cd9e3f | S00-001, S00-002 | Establish fail-closed SCRAM server-final validation |
 | [S00-018](tasks/S00-018.md) | S00 | protocol | security | done | auto-protocol-89fe6563092c | S00-001, S00-002, S00-017 | Validate bounded standalone XML ingress for the XMPP candidate |
 | [S00-019](tasks/S00-019.md) | S00 | crypto | security | done | auto-crypto-c68801170fa4 | S00-001, S00-002, S00-017, S00-018 | Validate browser-compatible SCRAM-SHA-512 through a public mechanism API |
-| [S00-020](tasks/S00-020.md) | S00 | ci-cd | qa | in_progress | auto-ci-cd-5a18c8aa1b42 | S00-001, S00-002, S00-017, S00-018, S00-019 | Restore access to the pinned Linux XMPP experiment toolchain |
+| [S00-020](tasks/S00-020.md) | S00 | ci-cd | qa | blocked | auto-ci-cd-5a18c8aa1b42 | S00-001, S00-002, S00-017, S00-018, S00-019, S00-024 | Restore access to the pinned Linux XMPP experiment toolchain |
 | [S00-021](tasks/S00-021.md) | S00 | crypto | security | done | auto-crypto-fcef9b6781bf | S00-001, S00-002 | Устранить прерывание: Проверить browser OMEMO backend |
 | [S00-022](tasks/S00-022.md) | S00 | crypto | security | blocked |  | S00-001, S00-002, S00-021 | Confirm or source a verified browser/WASM-capable OMEMO2 backend for the Web client endpoint |
 | [S00-023](tasks/S00-023.md) | S00 | storage | qa | todo |  | S00-002 | Устранить прерывание: Выбрать IndexedDB wrapper и migration policy |
+| [S00-024](tasks/S00-024.md) | S00 | ci-cd | qa | todo |  | S00-001, S00-002, S00-017, S00-018, S00-019 | Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain |
 | [S00-010](tasks/S00-010.md) | S00 | qa | orchestrator | todo |  | S00-001, S00-002, S00-003, S00-004, S00-005, S00-006, S00-007, S00-008, S00-009 | Gate: Профиль и проверка стека |
 | [S01-001](tasks/S01-001.md) | S01 | orchestrator | security | todo |  | S00-010 | Описать identity/model contracts |
 | [S01-002](tasks/S01-002.md) | S01 | orchestrator | security | todo |  | S00-010, S01-001 | Описать async account context |

planning/stages/S00.md

@@ -24,10 +24,11 @@
 - [S00-017](../tasks/S00-017.md): Establish fail-closed SCRAM server-final validation — protocol; done.
 - [S00-018](../tasks/S00-018.md): Validate bounded standalone XML ingress for the XMPP candidate — protocol; done.
 - [S00-019](../tasks/S00-019.md): Validate browser-compatible SCRAM-SHA-512 through a public mechanism API — crypto; done.
-- [S00-020](../tasks/S00-020.md): Restore access to the pinned Linux XMPP experiment toolchain — ci-cd; in_progress.
+- [S00-020](../tasks/S00-020.md): Restore access to the pinned Linux XMPP experiment toolchain — ci-cd; blocked.
 - [S00-021](../tasks/S00-021.md): Устранить прерывание: Проверить browser OMEMO backend — crypto; done.
 - [S00-022](../tasks/S00-022.md): Confirm or source a verified browser/WASM-capable OMEMO2 backend for the Web client endpoint — crypto; blocked.
 - [S00-023](../tasks/S00-023.md): Устранить прерывание: Выбрать IndexedDB wrapper и migration policy — storage; todo.
+- [S00-024](../tasks/S00-024.md): Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain — ci-cd; todo.
 - [S00-010](../tasks/S00-010.md): Gate: Профиль и проверка стека — qa; todo.
 
 ## Граница этапа

planning/task_matrix.csv

@@ -17,10 +17,11 @@ S00-016,S00,ci-cd,qa,done,auto-ci-cd-351a0cbbabef,"S00-001, S00-011, S00-013, S0
 S00-017,S00,protocol,security,done,auto-protocol-599343cd9e3f,"S00-001, S00-002",Establish fail-closed SCRAM server-final validation
 S00-018,S00,protocol,security,done,auto-protocol-89fe6563092c,"S00-001, S00-002, S00-017",Validate bounded standalone XML ingress for the XMPP candidate
 S00-019,S00,crypto,security,done,auto-crypto-c68801170fa4,"S00-001, S00-002, S00-017, S00-018",Validate browser-compatible SCRAM-SHA-512 through a public mechanism API
-S00-020,S00,ci-cd,qa,in_progress,auto-ci-cd-5a18c8aa1b42,"S00-001, S00-002, S00-017, S00-018, S00-019",Restore access to the pinned Linux XMPP experiment toolchain
+S00-020,S00,ci-cd,qa,blocked,auto-ci-cd-5a18c8aa1b42,"S00-001, S00-002, S00-017, S00-018, S00-019, S00-024",Restore access to the pinned Linux XMPP experiment toolchain
 S00-021,S00,crypto,security,done,auto-crypto-fcef9b6781bf,"S00-001, S00-002",Устранить прерывание: Проверить browser OMEMO backend
 S00-022,S00,crypto,security,blocked,,"S00-001, S00-002, S00-021",Confirm or source a verified browser/WASM-capable OMEMO2 backend for the Web client endpoint
 S00-023,S00,storage,qa,todo,,S00-002,Устранить прерывание: Выбрать IndexedDB wrapper и migration policy
+S00-024,S00,ci-cd,qa,todo,,"S00-001, S00-002, S00-017, S00-018, S00-019",Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain
 S00-010,S00,qa,orchestrator,todo,,"S00-001, S00-002, S00-003, S00-004, S00-005, S00-006, S00-007, S00-008, S00-009",Gate: Профиль и проверка стека
 S01-001,S01,orchestrator,security,todo,,S00-010,Описать identity/model contracts
 S01-002,S01,orchestrator,security,todo,,"S00-010, S01-001",Описать async account context

planning/tasks.json

@@ -1137,7 +1137,8 @@
         "S00-002",
         "S00-017",
         "S00-018",
-        "S00-019"
+        "S00-019",
+        "S00-024"
       ],
       "requirements": [
         "ACC-004",
@@ -1328,6 +1329,58 @@
       ],
       "context_budget_chars": 48000
     },
+    {
+      "id": "S00-024",
+      "stage": "S00",
+      "kind": "blocker",
+      "root_task": "S00-003",
+      "blocker_depth": 2,
+      "unblocks": [
+        "S00-020"
+      ],
+      "role": "ci-cd",
+      "reviewer_role": "qa",
+      "title": "Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain",
+      "outcome": "Устранить одну указанную причину прерывания и доказать готовность исходной задачи к новому запуску; не выполнять соседние задачи.",
+      "depends_on": [
+        "S00-001",
+        "S00-002",
+        "S00-017",
+        "S00-018",
+        "S00-019"
+      ],
+      "requirements": [],
+      "scope": [
+        "experiments/0002-xmpp-library/environment-access/**"
+      ],
+      "inputs": [
+        "docs/WEB_PROFILE.md",
+        "docs/ARCHITECTURE.md",
+        "docs/CONTRACTS.md",
+        "docs/TESTING.md",
+        "roles/protocol.md",
+        "docs/decisions/README.md",
+        "state/blockers/S00-020.md",
+        "state/blockers/S00-024.md"
+      ],
+      "spec_sections": [],
+      "ui_sections": [],
+      "steps": [
+        "Прочитать blocker report и handoff.",
+        "Воспроизвести конкретную причину.",
+        "Исправить только локальную причину в scope или уточнить внешний input.",
+        "Выполнить focused проверку и submit."
+      ],
+      "acceptance": [
+        "Причина воспроизводимо устранена.",
+        "Исходная задача не завершена обходом требований."
+      ],
+      "checks": [
+        "Повторить сценарий прерывания.",
+        "Проверить отсутствие изменений вне scope."
+      ],
+      "context_budget_chars": 48000
+    },
     {
       "id": "S00-010",
       "stage": "S00",

planning/tasks/S00-020.md

@@ -7,7 +7,7 @@
 - Этап: S00
 - Оператор: ci-cd
 - Reviewer: qa
-- Зависимости: S00-001, S00-002, S00-017, S00-018, S00-019
+- Зависимости: S00-001, S00-002, S00-017, S00-018, S00-019, S00-024
 - Требования: ACC-004, NET-003, NET-004
 
 ## Один результат

planning/tasks/S00-024.md

@@ -0,0 +1,57 @@
+# S00-024: Устранить прерывание: Restore access to the pinned Linux XMPP experiment toolchain
+
+- Remediation для: S00-020; root: S00-003; depth: 2
+
+> Generated from planning/tasks.json; status is in state/tasks.json.
+
+- Этап: S00
+- Оператор: ci-cd
+- Reviewer: qa
+- Зависимости: S00-001, S00-002, S00-017, S00-018, S00-019
+- Требования: инженерная подготовка
+
+## Один результат
+
+Устранить одну указанную причину прерывания и доказать готовность исходной задачи к новому запуску; не выполнять соседние задачи.
+
+## Разрешённые пути
+
+- `experiments/0002-xmpp-library/environment-access/**`
+
+Не изменять другие modules, shared contracts или spec snapshots без изменения плана. Stem без расширения разрешает принятые stack-specific extensions и focused test рядом.
+
+## Прочитать
+
+- docs/WEB_PROFILE.md
+- docs/ARCHITECTURE.md
+- docs/CONTRACTS.md
+- docs/TESTING.md
+- roles/protocol.md
+- docs/decisions/README.md
+- state/blockers/S00-020.md
+- state/blockers/S00-024.md
+
+## Шаги
+
+1. Прочитать blocker report и handoff.
+2. Воспроизвести конкретную причину.
+3. Исправить только локальную причину в scope или уточнить внешний input.
+4. Выполнить focused проверку и submit.
+
+## Приёмка
+
+1. Причина воспроизводимо устранена.
+2. Исходная задача не завершена обходом требований.
+
+## Focused checks
+
+1. Повторить сценарий прерывания.
+2. Проверить отсутствие изменений вне scope.
+
+## Блокер и завершение запуска
+
+Для всех ролей scope — только эта задача. При блокере создать issue JSON по state/ISSUE_TEMPLATE.json, вызвать escalate с текущим ID/role/agent, проверить status=blocked и resolution_task, затем немедленно завершить запуск. Не решать blocker и не выбирать следующую задачу самому. Новый агент назначается runner. Правки metadata через CLI — единственное исключение scope.
+
+## Передача
+
+Сохранить evidence/handoff; submit → review и завершить запуск. Reviewer также выполняет только эту задачу, включая обязательное escalate при блокере.

state/blockers/S00-024.md

@@ -0,0 +1,22 @@
+# Blocker S00-024
+
+- Original task: S00-020
+- Root task: S00-003
+- Reporter: auto-ci-cd-5a18c8aa1b42
+- Role: ci-cd
+- Original owner: auto-ci-cd-5a18c8aa1b42
+- Waits for user/external condition: False
+
+## Cause
+
+Previous runner session was interrupted before submit/escalate; processes stopped. User now explicitly requests resuming development. Preserve partial artifacts, verify them in a fresh bounded remediation, and return original to a new executor only after independent review.
+
+## One remediation outcome
+
+Устранить одну указанную причину прерывания и доказать готовность исходной задачи к новому запуску; не выполнять соседние задачи.
+
+## Evidence / reproduction
+
+See original handoff and task evidence.
+
+The reporting agent must stop now. A new agent implements only S00-024.

state/handoffs/S00-020.md

@@ -0,0 +1,9 @@
+
+
+# Blocked handoff
+
+Original: S00-020; reporter: auto-ci-cd-5a18c8aa1b42; resolution: S00-024.
+
+Previous runner session was interrupted before submit/escalate; processes stopped. User now explicitly requests resuming development. Preserve partial artifacts, verify them in a fresh bounded remediation, and return original to a new executor only after independent review.
+
+Next: complete and review the remediation; only a fresh session may continue.

state/tasks.json

@@ -1,6 +1,6 @@
 {
   "schema_version": 1,
-  "revision": 64,
+  "revision": 65,
   "tasks": {
     "S00-001": {
       "status": "done",
@@ -1282,12 +1282,18 @@
       "completed_at": "2026-10-14T19:52:28+00:00"
     },
     "S00-020": {
-      "status": "in_progress",
+      "status": "blocked",
       "owner": "auto-ci-cd-5a18c8aa1b42",
       "external_wait": false,
-      "reason": null,
+      "reason": "Previous runner session was interrupted before submit/escalate; processes stopped. User now explicitly requests resuming development. Preserve partial artifacts, verify them in a fresh bounded remediation, and return original to a new executor only after independent review.",
       "started_at": "2026-10-15T07:27:20+00:00",
-      "updated_at": "2026-10-15T07:27:20+00:00"
+      "updated_at": "2026-10-15T09:33:15+00:00",
+      "blocked_by": [
+        "S00-024"
+      ],
+      "resume_status": "in_progress",
+      "blocker_report": "state/blockers/S00-024.md",
+      "handoff": "state/handoffs/S00-020.md"
     },
     "S00-021": {
       "status": "done",
@@ -1313,6 +1319,12 @@
       "owner": null,
       "external_wait": false,
       "reason": null
+    },
+    "S00-024": {
+      "status": "todo",
+      "owner": null,
+      "external_wait": false,
+      "reason": null
     }
   },
   "events": [
@@ -2137,6 +2149,18 @@
       "from": "in_progress",
       "to": "blocked",
       "reason": "Previous runner session was interrupted before submit/escalate; processes stopped. User now explicitly requests resuming development. Preserve partial artifacts, verify them in a fresh bounded remediation, and return original to a new executor only after independent review."
+    },
+    {
+      "revision": 65,
+      "at": "2026-10-15T09:33:15+00:00",
+      "action": "escalate",
+      "task": "S00-020",
+      "resolution_task": "S00-024",
+      "agent": "auto-ci-cd-5a18c8aa1b42",
+      "role": "ci-cd",
+      "from": "in_progress",
+      "to": "blocked",
+      "reason": "Previous runner session was interrupted before submit/escalate; processes stopped. User now explicitly requests resuming development. Preserve partial artifacts, verify them in a fresh bounded remediation, and return original to a new executor only after independent review."
     }
   ],
   "retired_agents": [
@@ -2152,6 +2176,7 @@
     "auto-protocol-59f4d359b339",
     "auto-crypto-8bf3dcf711b9",
     "auto-crypto-fe1c81c17ded",
-    "auto-storage-88c3286c6641"
+    "auto-storage-88c3286c6641",
+    "auto-ci-cd-5a18c8aa1b42"
   ]
 }