The Complete Guide to Claude Code V4 — The Community Asked, We Delivered: 85% Context Reduction, Custom Agents & Session Teleportation
증상
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V4: The January 2026 Revolution
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Previous guides: [V1](https://www.reddit.com/r/TheDeci
원인
Agent encountered an unexpected state or unhandled error condition outside the standard error handling path.
해결법
New Project Setup
When creating ANY new project:
### Required Files
- `.env` - Environment variables (NEVER commit)
- `.env.example` - Template with placeholders
- `.gitignore` - Must include: .env, node_modules/, dist/
- `CLAUDE.md` - Project overview
### Required Structure
project/
├── src/
├── tests/
├── docs/
├── .claude/
│ ├── skills/
│ ├── agents/
│ └── commands/
└── scripts/
### Node.js Requirements
Add to entry point:
process.on('unhandledRejection', (reason, promise) => {
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
Reddit r/ClaudeAI https://reddit.com/r/ClaudeAI/comments/1qquxle/the_complete_guide_to_claude_code_v4_the/
Source: Reddit r/ClaudeAI https://reddit.com/r/ClaudeAI/comments/1qquxle/the_complete_gu
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clawhub install synapse-ai
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