Agent skill
developing-slack-apps
Develops Slack apps and API integrations. Supports Bolt framework, Block Kit UI, event handling, and slash commands. Use for "Slack", "슬랙", "봇", "webhook" requests or Slack app development.
Install this agent skill to your Project
npx add-skill https://github.com/jiunbae/agent-skills/tree/main/integrations/slack-skill
SKILL.md
Slack App Development
Bolt framework + Block Kit for Slack integrations.
Prerequisites
export SLACK_BOT_TOKEN="xoxb-xxx"
export SLACK_SIGNING_SECRET="xxx"
export SLACK_APP_TOKEN="xapp-xxx" # for socket mode
Quick Start (Bolt)
import { App } from '@slack/bolt';
const app = new App({
token: process.env.SLACK_BOT_TOKEN,
signingSecret: process.env.SLACK_SIGNING_SECRET,
socketMode: true,
appToken: process.env.SLACK_APP_TOKEN,
});
// Slash command
app.command('/hello', async ({ command, ack, respond }) => {
await ack();
await respond(`Hello, ${command.user_name}!`);
});
// Message listener
app.message('hello', async ({ message, say }) => {
await say(`Hey there <@${message.user}>!`);
});
app.start(3000);
Block Kit
Simple Message
{
"blocks": [
{
"type": "section",
"text": { "type": "mrkdwn", "text": "*Title*\nDescription" }
},
{
"type": "actions",
"elements": [
{ "type": "button", "text": { "type": "plain_text", "text": "Click" }, "action_id": "button_click" }
]
}
]
}
Webhooks
Incoming Webhook
curl -X POST $WEBHOOK_URL \
-H "Content-Type: application/json" \
-d '{"text": "Hello from webhook!"}'
Event Subscriptions
Common events:
message.channels- Channel messagesapp_mention- Bot mentionedreaction_added- Emoji reactions
Best Practices
- Use socket mode for development
- Acknowledge commands within 3 seconds
- Use Block Kit for rich UIs
- Store tokens securely (never in code)
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