iterative-retrieval
Official逐步优化上下文检索以解决子代理上下文问题的模式
What this skill does
When applied, it prepends a system prompt before your request is sent — no extra calls and no change to how you are billed beyond the added tokens.
---
name: iterative-retrieval
description: 逐步优化上下文检索以解决子代理上下文问题的模式
origin: ECC
---
# 迭代检索模式
解决多智能体工作流中的“上下文问题”,即子智能体在开始工作前不知道需要哪些上下文。
## 何时激活
* 当需要生成需要代码库上下文但无法预先预测的子代理时
* 构建需要逐步完善上下文的多代理工作流时
* 在代理任务中遇到"上下文过大"或"缺少上下文"的失败时
* 为代码探索设计类似 RAG 的检索管道时
* 在代理编排中优化令牌使用时
## 问题
子智能体被生成时上下文有限。它们不知道:
* 哪些文件包含相关代码
* 代码库中存在哪些模式
* 项目使用什么术语
标准方法会失败:
* **发送所有内容**:超出上下文限制
* **不发送任何内容**:智能体缺乏关键信息
* **猜测所需内容**:经常出错
## 解决方案:迭代检索
一个逐步优化上下文的 4 阶段循环:
```
┌─────────────────────────────────────────────┐
│ │
│ ┌──────────┐ ┌──────────┐ │
│ │ 调度 │─────│ 评估 │ │
│ └──────────┘ └──────────┘ │
│ ▲ │ │
│ │ ▼ │
│ ┌──────────┐ ┌──────────┐ │
│ │ 循环 │─────│ 优化 │ │
│ └──────────┘ └──────────┘ │
│ │
│ 最多3次循环,然后继续 │
└─────────────────────────────────────────────┘
```
### 阶段 1:调度
初始的广泛查询以收集候选文件:
```javascript
// Start with high-level intent
const initialQuery = {
patterns: ['src/**/*.ts', 'lib/**/*.ts'],
keywords: ['authentication', 'user', 'session'],
excludes: ['*.test.ts', '*.spec.ts']
};
// Dispatch to retrieval agent
const candidates = await retrieveFiles(initialQuery);
```
### 阶段 2:评估
评估检索到的内容的相关性:
```javascript
function evaluateRelevance(files, task) {
return files.map(file => ({
path: file.path,
relevance: scoreRelevance(file.content, task),
reason: explainRelevance(file.content, task),
missingContext: identifyGaps(file.content, task)
}));
}
```
评分标准:
* **高 (0.8-1.0)**:直接实现目标功能
* **中 (0.5-0.7)**:包含相关模式或类型
* **低 (0.2-0.4)**:略微相关
* **无 (0-0.2)**:不相关,排除
### 阶段 3:优化
根据评估结果更新搜索条件:
```javascript
function refineQuery(evaluation, previousQuery) {
return {
// Add new patterns discovered in high-relevance files
patterns: [...previousQuery.patterns, ..Use this skill
Add a "skill" field with the skill’s ID to your chat completion request. It is applied server-side before your prompt is sent — no extra calls.
{
"model": "gpt-4o-mini",
"skill": "imp-7b9ad757-689e-4820-b4a0-e20fd24c6871",
"messages": [{ "role": "user", "content": "…" }]
}Install the skill, enable it in your dashboard and (optionally) limit it to specific models. It then applies automatically to every matching request — with no "skill" field to send each time.
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