Slack: Post Message

Send a Slack message to a channel, direct message or App Home, with text or formatted blocks.

Tool ID: slack_post_message

Run this action

Use the TypeScript SDK for one call. Use ctx.tools.execute(...) inside a Play for durable calls, scheduled calls, or CSV processing.

import { Deepline } from 'deepline';

const deepline = await Deepline.connect();
const result = await deepline.tools.execute(
  'slack_post_message',
  {
    "channel": "example"
  },
);

console.log(result.toolResponse.raw);

CLI

deepline tools execute slack_post_message --input '{
  "channel": "example"
}' --json

Example response

The static output schema lacks the details for a reliable example. Use deepline describe slack_post_message --json for the complete live contract.

Input reference

Name	Type	Required	Default	Details
`payload.channel`	`string`	Yes	—	Slack channel ID (for example C0123456789).
`payload.text`	`string`	No	—	Slack message text. Recommended accessibility fallback when blocks or attachments are supplied.
`payload.attachments`	`array`	No	—	—
`payload.blocks`	`array`	No	—	Maximum items: 50.
`payload.as_user`	`boolean`	No	—	—
`payload.current_draft_last_updated_ts`	`string`	No	—	Minimum length: 1.
`payload.icon_emoji`	`string`	No	—	Minimum length: 1.
`payload.icon_url`	`string`	No	—	Format: `uri`. Minimum length: 1.
`payload.link_names`	`boolean`	No	—	—
`payload.markdown_text`	`string`	No	—	Maximum length: 12000.
`payload.metadata`	`record`	No	—	—
`payload.mrkdwn`	`boolean`	No	—	—
`payload.parse`	`"none" \| "full"`	No	—	Allowed: `none`, `full`.
`payload.reply_broadcast`	`boolean`	No	—	—
`payload.thread_ts`	`string`	No	—	Minimum length: 1.
`payload.unfurl_app_links`	`boolean`	No	—	—
`payload.unfurl_links`	`boolean`	No	—	—
`payload.unfurl_media`	`boolean`	No	—	—
`payload.username`	`string`	No	—	Minimum length: 1.

This input schema is too large for an inline display. Read the complete live contract with deepline describe slack_post_message --json.

Output reference

Standard tool result payload.

Name	Type	Required	Default	Details
`result.data`	`record`	Yes	—	Provider response payload.
`result.meta`	`record`	No	—	Additional response metadata.

Deepline cost

Pricing model: fixed (per call).
Estimated Deepline credits: 0 per pricing unit.
Provider-native pricing may still exist outside Deepline credit billing.

​Run this action

​CLI

​Example response

​Input reference

​Output reference

​Deepline cost

​Related documentation

Run this action

CLI

Example response

Input reference

Output reference

Deepline cost

Related documentation