wecom-post-in-group（wecom 在群里发帖）

Scheduled Webhook Push Skill

Purpose

Provide a complete workflow for setting up scheduled content push to WeChat Work (企业微信) group webhooks. This skill handles webhook configuration, flexible schedule patterns, content formatting, and automation creation.

When to Use

• User wants to push content to a WeChat Work group webhook on a schedule
• User mentions webhook ID/URL and a push frequency (daily, weekly, monthly, or custom)
• User wants to configure recurring automated messages to 企业微信 groups
• User provides a webhook key or full URL and wants to set up automation

Workflow

Step 1: Parse Webhook Configuration

Extract the webhook information from user input. The webhook can be provided in multiple formats:

1. Full URL: https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
2. Key only: adeee643-bc8e-4ad1-bb52-83001cd5986e
3. From a file: User may specify a file path containing the webhook key/URL

If provided as key only, construct the full URL:

https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key={KEY}

To validate the webhook, run the validation script:

python3 {SKILL_DIR}/scripts/validate_webhook.py <webhook_url_or_key>

Step 2: Determine Schedule Pattern

Parse the user's desired schedule into one of the supported patterns. Refer to references/schedule_patterns.md for the full mapping of natural language to RRULE + date-guard logic.

Supported schedule types:

Date guard logic for monthly patterns (used in automation prompt):

• Fixed date (e.g. 每月27日): Add to prompt: 首先检查今天的日期，如果今天不是每月的 {N} 日，则直接结束，不执行任何操作。
• Last Monday of month: Add to prompt: 首先检查今天的日期，计算本月最后一个周一的日期（本月最后一天往前找到第一个周一），如果今天不是该日期，则直接结束。
• First Monday of month: Add to prompt: 首先检查今天的日期，如果今天的日期不在 1-7 号之间，则直接结束。
• Last week of month: Add to prompt: 首先检查今天的日期，如果今天的日期加 7 后仍在本月内（即不是最后一周），则直接结束。

Step 3: Determine Push Content

Ask the user what content to push, or infer from context. Common content types:

1. GitHub Trending — Fetch and summarize trending AI/tech repos
2. Custom message — User-provided static or template message
3. Data report — Query data and format as report
4. URL content — Fetch and summarize a web page

Step 4: Test the Push

Before creating the automation, perform a one-time test push to verify the webhook and content formatting.

Use the push script to send a test message:

python3 {SKILL_DIR}/scripts/push_to_webhook.py \
  --webhook "<WEBHOOK_URL>" \
  --format markdown \
  --message "<FORMATTED_CONTENT>"

Or use curl directly:

curl -s '<WEBHOOK_URL>' \
  -H 'Content-Type: application/json' \
  -d '{"msgtype":"markdown","markdown":{"content":"<CONTENT>"}}'

Verify the response is {"errcode":0,"errmsg":"ok"}.

Step 5: Create the Automation

Use the automation_update tool with the following configuration:

mode: "suggested create"
name: <descriptive name based on content and schedule>
prompt: <date guard if needed> + <content generation steps> + <push via webhook>
rrule: <computed RRULE from Step 2>
cwds: <current workspace>
status: ACTIVE

Automation prompt template:

{DATE_GUARD_IF_NEEDED}

执行以下步骤：

1. {CONTENT_GENERATION_STEPS}

2. 将整理好的内容通过企业微信群机器人 Webhook 推送，Webhook 地址为：{WEBHOOK_URL}

3. 推送格式使用 {FORMAT}，确保内容格式正确、可读性好。

Step 6: Confirm to User

After creating the automation, summarize the configuration:

• Task name: What was created
• Schedule: Human-readable description (e.g. "每月 27 日上午 10:00")
• Webhook: Target webhook (masked key for security: show first 8 and last 4 chars)
• Content: What will be pushed
• Status: Active/Paused

Message Format Reference

WeChat Work webhook supports these message types:

Markdown (recommended for rich content)

{
  "msgtype": "markdown",
  "markdown": {
    "content": "# Title\
> Quote\
**Bold** <font color=\"warning\">Warning</font>"
  }
}

Supported markdown elements:

• Headers: #, ##, ###
• Bold: **text**
• Links: [text](url)
• Quotes: > text
• Color: <font color="info|comment|warning">text</font>
• Line breaks: `\

`

Text (for simple messages)

{
  "msgtype": "text",
  "text": {
    "content": "Message content",
    "mentioned_list": ["@all"]
  }
}

Important Notes

• WeChat Work webhook has a rate limit of 20 messages per minute per webhook
• Markdown message content has a max length of 4096 bytes
• If content exceeds the limit, split into multiple messages
• Always mask webhook keys in user-facing output for security
• The automation scheduling system only supports HOURLY and WEEKLY RRULE frequencies; for monthly schedules, use a date guard in the prompt