💰 Save Token | Token 节省器

> A guiding skill that teaches agents how to save tokens by avoiding duplicate context.

>

> 指导 Agent 如何通过避免重复上下文来节省 Token 的技能。

⚠️ Important Clarification | 重要说明

| Clarification | 说明 |

|---------------|------|

| This is a guiding skill | Skill itself cannot modify agent's runtime context |

| Agent performs the action | Agent follows the guidance to optimize context |

| 这是一个指导性 Skill | Skill 本身不能修改 Agent 的运行时上下文 |

| 由 Agent 执行操作 | Agent 遵循指导来优化上下文 |

🎯 When to Use | 使用时机

Agent 自动触发条件（满足任一即应调用）：

• 用户提到 "token" / "成本" / "省钱" / "费用"
• 对话已超过 10 轮
• 同一文件被读取超过 1 次
• 任务前上下文超过 5000 字符

| Situation | Action | 场景 | 操作 |

|-----------|--------|------|------|

| User mentions "token" or "cost" | Apply save-token strategies | 用户提到 token 或成本 | 应用 save-token 策略 |

| Long conversation (>10 turns) | Summarize old context | 长对话（>10轮） | 摘要旧上下文 |

| File read multiple times | Reference previous read, don't re-read | 文件被多次读取 | 引用之前的读取，不重复读取 |

| Repeated error messages | Summarize error pattern, don't repeat full error | 重复错误消息 | 摘要错误模式，不重复完整错误 |

📋 Token-Saving Strategies | 节省 Token 策略

Strategy 1: Summarize Instead of Re-sending | 策略1：摘要代替重发

When: Old conversation context is no longer directly relevant

当：旧对话上下文不再直接相关时

Do:

• Summarize key points from earlier conversation
• Replace full history with concise summary
• Keep only the most relevant recent messages

做法：

• 摘要早期对话的关键点
• 用简洁摘要替换完整历史
• 只保留最相关的最近消息

Example:

❌ Bad: Re-sending 50 turns of conversation (10,000+ tokens)
✅ Good: "Previous context: User was analyzing stock investment strategies. 
   Key decisions made: prioritize low P/E, check cash flow. 
   Now focusing on: specific company analysis."

Strategy 2: Reference Instead of Repeat | 策略2：引用代替重复

When: Same file/content needs to be referenced again

当：需要再次引用同一文件/内容时

Do:

• Don't re-read the entire file
• Reference the key information already extracted
• Only read new sections if needed

做法：

• 不要重新读取整个文件
• 引用已提取的关键信息
• 仅在需要时读取新部分

Example:

❌ Bad: Reading the same 200KB file again
✅ Good: "As we found earlier in the file, the revenue is $50M..."

Strategy 3: De-duplicate Identical Blocks | 策略3：去重相同块

When: Identical text appears multiple times in context

当：相同文本在上下文中多次出现时

Do:

• Identify identical blocks (≥100 characters)
• Keep only the first occurrence
• Note what was removed

做法：

• 识别相同块（≥100字符）
• 只保留首次出现
• 记录删除了什么

Example:

❌ Bad: Same error message appears 5 times (500 chars × 5 = 2500 chars)
✅ Good: "[Error message appeared 5 times, showing once]: Connection timeout..."

Strategy 4: Compress Verbose Output | 策略4：压缩冗长输出

When: Tool output or file content is very long

当：工具输出或文件内容很长时

Do:

• Extract only relevant parts
• Summarize the rest
• Note the source for reference

做法：

• 只提取相关部分
• 摘要其余部分
• 记录来源以供参考

Example:

❌ Bad: Including full 1000-line log file
✅ Good: "Log file (1000 lines): Key errors on lines 45, 78, 234. 
   Pattern: Connection drops every 5 minutes. Full log available if needed."

🔄 Workflow | 工作流程

1. Agent receives task
2. Agent checks context size and duplicate content
3. If context > threshold OR duplicates found:
   a. Apply appropriate strategy from above
   b. Report token savings to user
4. Proceed with optimized context

📊 Reporting Format | 报告格式

When applying token-saving strategies, inform the user:

💡 Token Optimization Applied:
- Strategy: [Strategy Name]
- Context before: X tokens
- Context after: Y tokens  
- Saved: Z tokens (P%)

⚠️ What This Skill Cannot Do | 此 Skill 不能做的事

| Cannot Do | Reason | 不能做 | 原因 |

|-----------|--------|--------|------|

| Directly modify context | Skill is guidance, not execution | 直接修改上下文 | Skill 是指导，不是执行 |

| Automatically delete content | Agent must decide what to keep | 自动删除内容 | Agent 必须决定保留什么 |

| Guarantee exact savings | Depends on implementation | 保证精确节省量 | 取决于实现方式 |

✅ What This Skill Does | 此 Skill 能做的事

| Does | Description | 能做 | 描述 |

|------|-------------|------|------|

| Provide strategies | Teaches how to save tokens | 提供策略 | 教如何节省 Token |

| Identify opportunities | Helps recognize when to apply | 识别机会 | 帮助识别何时应用 |

| Guide implementation | Shows best practices | 指导实现 | 展示最佳实践 |

📝 Version | 版本

• Version: 1.1.0
• Updated: 2026-03-12
• Change: Clarified that this is a guiding skill, not an execution script