Model selection strategy and routing. Use when choosing between models for different task types, subagent configurations, or optimizing token cost vs quality tradeoffs.
Scanned 9/7/2026
Install to Claude Code
npx -y skills add xiaobei930/claude-code-best-practices --skill model --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: model
description: "Model selection strategy and routing. Use when choosing between models for different task types, subagent configurations, or optimizing token cost vs quality tradeoffs."
allowed-tools: Read, Grep, Glob
---
# 模型选择技能
本技能提供任务类型到模型的推荐映射,帮助 Claude 在不同场景下选择合适的模型。
## 子文件
- [routing-matrix.md](routing-matrix.md) - 任务类型→模型推荐矩阵
## 核心原则
1. **探索用 Haiku** — 快速、低成本,适合大量 Glob/Grep/Read 操作
2. **实现用 Sonnet** — 平衡质量和速度,适合编码和测试
3. **决策用 Opus** — 深度思考,适合架构设计和安全审查
## 与 /cc-best:model 命令的关系
- `/cc-best:model` 命令用于**全局切换**所有 Agent 的模型策略(quality/balanced/economy)
- 本技能提供**细粒度参考**,帮助 Claude 在具体任务中判断模型选择
- 命令是"批量切换",技能是"逐任务建议"
## 使用场景
### 自动参考
当 Claude 遇到以下场景时,会自动参考本技能:
- 启动子代理(Task tool)时选择 model 参数
- 评估当前任务复杂度时
- 用户询问模型选择建议时
### 决策流程
```
任务到达 ──→ 评估复杂度 ──→ 查询 routing-matrix ──→ 选择模型
│
├─ 简单(搜索/读取)→ haiku
├─ 中等(编码/测试)→ sonnet
└─ 复杂(架构/安全)→ opus
```
## 最佳实践
1. **成本敏感场景** — 子代理探索任务优先 haiku,节省 token
2. **质量敏感场景** — 安全审查、架构决策必须用 opus
3. **混合场景** — 同一工作流中可对不同阶段使用不同模型
4. **用户偏好** — 尊重 `/cc-best:model` 设定的全局策略
---
> **记住**:模型选择的目标是用最低成本达到足够的质量。不是所有任务都需要最强模型,也不是所有任务都能用最快模型。
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