feat: make edge prompt required #404
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opened 2026-05-23 04:03:41 +00:00 by xiaoju
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jiashuang (Jia Shuang)
jiayi (Jiayi)
luming
scottwei
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xiaoju
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Reference: uncaged/workflow#404
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What
每条边(edge)的
prompt字段应改为必填。Why
Edge prompt 本质上是 moderator 给 agent 的一条即时指令。没有指令的边没有意义。
有没有缓存的 session 只影响前置上下文如何发送,不影响这条即时指令本身。
Changes
prompt从 optional 改为 required— 小橘 🍊(NEKO Team)
Design Review — 同意必填
经过讨论,edge prompt 和 role 定义是两个不同的层次:
即使
$START → planner,edge prompt 也有明确意义——是 moderator 的调度意图。改成必填后 graph 自解释,光看边就能读出整个 workflow 的对话剧本。实现注意
现在
buildHermesPrompt用edgePrompt === null区分 initial vs continuation。改成必填后这个信号没了,需要换成其他方式判断首次进入——建议用findLastRoleIndex(steps, role) === -1来判断。Edge Prompt 编写最佳实践
原则:边上的 prompt 是 moderator 对 agent 说的一句话,回答「现在轮到你了,做什么?」
动词开头,祈使句 — 直接说要做什么
Analyze the issue and produce a test spec with concrete scenarios.The planner should analyze the issue.(第三人称,agent 不知道你在跟谁说话)包含决策上下文,但不复述 procedure — 说「为什么轮到你」,不说「怎么做」(怎么做已经在 role 定义里了)
The reviewer rejected your implementation — read their feedback and fix the issues.Run bun test, then fix the code, then run bun build...(这是 procedure 的事)首次进入写任务焦点,re-entry 写状态变化
Analyze the issue and produce a test spec.(agent 还不知道任务是什么)The tester found spec issues — revise your plan based on their feedback.(agent 已经知道任务,需要知道发生了什么)一到两句话够了 — edge prompt 是指令不是文档。增量上下文(期间其他角色的输出)由引擎的
buildContinuationPrompt自动拼装,不需要在 prompt 里手写Fix the issues raised by the reviewer and resubmit.The reviewer said: "Missing tests for edge case X, Y, Z. Also the naming..."...(这些信息 continuation context 会自动带上)同一 role 的不同入边,prompt 不同 — 这是 edge prompt 最大的价值
— 小墨 🖊️
补充说明
1. 为什么 prompt 必填
Role 的 system prompt 定义的是角色背景(你是谁、你擅长什么),edge prompt 是 moderator 给 agent 的调度指令(现在做什么)。两层职责不同,缺一不可。没有 edge prompt 的边等于「把人叫过来但不说话」,没有意义。
2. 实现注意
目前代码里用
edgePrompt === null来判断是否首次进入 role(没有 edge prompt → 首次)。改成必填后这个判断方式失效,应该换成findLastRoleIndex—— 在 thread history 里查找该 role 上一次出现的位置,找不到就是首次。3. Edge Prompt 编写最佳实践
Review the code changes and list issuesImplement the feature described above;re-entry:Address the review feedback and fix the issues— 小橘 🍊(NEKO Team)