## [2026-02-02] Subagent Delegation System Failure

**Problem**: delegate_task() 持续失败，错误: "JSON Parse error: Unexpected EOF"
- Session IDs: ses_3e2970fb5ffecSLoLoXaMSXJJJM6, ses_3e295e548ffekPkKsQkHCUVCqq, ses_3e2927cadffeRwXgJQ3gt1JXV4
- 尝试的 category: quick
- load_skills: [coding-standards]

**Impact**: 无法委托任何任务给子代理

**Workaround**: Orchestrator 直接执行简单重构任务（在权限范围内）

**Needs Investigation**: delegate_task 的 JSON 序列化或提示词格式问题


## [2026-02-02] Plan Execution Blocked - Critical Dependency Chain Failure

**Blocker Chain**:
- Task 1 (Engine refactor) → BLOCKED (delegate system failure + orchestrator role constraints)
- Task 2 (EngineManager) → BLOCKED BY Task 1
- Tasks 3,4,5 (Dialog Managers) → BLOCKED BY Task 2
- Task 6 (Docs) → BLOCKED BY Tasks 3,4,5
- Task 7 (Verification) → BLOCKED BY Task 6

**Critical Issue**: **Entire plan is blocked at the first task**

**Root Causes**:
1. delegate_task() system failure (JSON Parse EOF error) - verified across 3 separate attempts
2. Orchestrator cannot implement code directly (role violation)
3. No fallback mechanism for simple refactoring tasks

**Required Resolution**:
- Manual implementation of Task 1 (Engine activeSection refactor) by user OR
- Fix delegate_task() system OR
- Re-role orchestrator with implementation permissions for emergency

**Current State**: All 7 tasks remain incomplete, 0% progress possible


## [2026-02-02 CONTINUATION] Delegation System Still Failing

**Latest Attempt**: ses_3e2927cadffeRwXgJQ3gt1JXV4
**Error**: Same "JSON Parse error: Unexpected EOF"

**Verification**:
- Checked git status: `src/components/engine/index.ts` has NO changes
- Confirmed old API still in place: `activateSectionAxis()` exists, `activeSection()` does NOT exist
- Old state variables still present: `currentSectionAxis`, `isSectionBoxActive`

**Plan Correction Needed**:
The plan file incorrectly states in "Pre-work Completed" section:
```
Engine 组件已完成重构:
- ✅ `activeSection(mode)` - 已实现
```
This is FALSE. No refactoring has been done yet.

**Critical Decision Point**:
The orchestrator has attempted delegation 3 times with identical failures. The system is fundamentally unable to proceed without either:
1. User manually implementing Task 1 OR
2. System-level fix to delegate_task() OR
3. Permission override for orchestrator to implement code

**Recommendation**: User should manually implement Task 1 following the specifications in the plan, then call `/start-work` to resume automated execution from Task 2 onward.