cross-agent-notify（跨 Agent 通知）

Cross-Agent Notify

What This Skill Does

Provides the standard cross-agent notification workflow for OpenClaw: how to reliably wake up another agent, delegate tasks, receive results, and trace progress in the Feishu group.

Core problem solved: sessions_send times out when the target agent's main session is done. The agent:<target>:main format solves this by activating the agent's persistent session layer regardless of main session state.

Standard Collaboration Chain

任务文件 → inbox 消息 → sessions_send agent:<target>:main → 对方处理 → 结果回写 inbox → 飞书群 trace

Four mandatory steps (all four required, in order):

1. Update task file — set communication fields, owner, status
2. Write inbox message — drop a structured .txt file to shared/inbox/<target_agent>/
3. Send wakeup — sessions_send to agent:<target_agent>:main
4. Trace in Feishu group — post a one-line @target_agent task TASK-xxx in agent:<agent_id>:feishu:group:oc_8efe2b5fdf1ed5939c93f206b5c0e21e

Step 1 — Update the Task File

Before sending anything, update the shared task file:

owner: target_agent
status: in_progress
communication:
  reply_to_agent: requesting_agent   # always set; never hardcode a name
  submitter_agent: requesting_agent

Rule: Always set communication.reply_to_agent. Never hardcode the requesting agent's name as the reply target.

Step 2 — Write the Inbox Message

Create a text file at:

shared/inbox/<target_agent>/YYYY-MM-DD-HHMM-task-description.txt

Minimum required content:

# 任务：<task name>
**时间:** YYYY-MM-DD HH:MM GMT+8
**来源:** requesting_agent
**回复给:** target_agent
**任务文件:** shared/tasks/<task-id>.md
---
## 任务内容
<concise description of what is needed>

## 完成后
请将结果回写到任务文件，并将完成状态通知 requesting_agent。

Step 3 — Send the Wakeup

sessions_send(
    sessionKey=None,          # leave blank; target is by agentId
    agentId="<target_agent>"  # e.g. "agent-a", "agent-b"
    message="task TASK-xxx assigned to you, check inbox"
)

Target format: agent:<target_agent>:main — the agent's persistent session layer, works even when the main session is done.

Key finding: agent:<target>:main format successfully activates agents whose main sessions are done. This bypasses the sessions_send timeout problem.

Never use the old Telegram-based group protocol — it is deprecated (2026-04-06).

Step 4 — Feishu Group Trace

Post a short trace message to the shared Feishu group. Get the stable group session key from the target agent's SKILL.md or team config. Example:

@target_agent task TASK-123，已投 agent:target_agent:main，查 inbox

Use only the approved one-line templates (see references/PROTOCOL.md for full list). Keep it short — the inbox carries full context, not the group message.

Group session key pattern:

agent:<agent_id>:feishu:group:oc_8efe2b5fdf1ed5939c93f206b5c0e21e

Receiving a Notification

When your inbox is mentioned or sessions_send wakes you:

1. Read the inbox message file first
2. Read the linked task file
3. Perform the work
4. Write results back to the task file (review field, evidence field)
5. Drop a completion note in the requester's inbox
6. Post a result trace in the Feishu group

Do not skip the task file and inbox — they are the source of truth.

Communication Field Rules

communication:
  reply_to_agent: <agent_id>   # mandatory; who to send receipts/results back to
  submitter_agent: <agent_id>   # who initiated the request

• reply_to_agent must always be set to a named agent ID, never a session ID
• Use agent:<target>:main format in sessions_send, not session keys
• If submitter_agent is missing, fall back to owner_agent

Reference

See references/PROTOCOL.md for:

• Full one-line template library (wakeup, assist, handoff, result return, blocked, audit request)
• Feishu group mention validity rules
• Fixed group target and session key pattern
• Deprecated Telegram protocol notice