# Slack Msg Update

> Update Slack messages in threads. Use when the user wants to edit, modify, or update an existing Slack message by providing channel ID, message timestamp, and new text content.

- Skill: `comfy-org/slack-msg-update` (Agent Skill)
- Install (CLI): `npx skillmds@latest add comfy-org/slack-msg-update`
- Raw SKILL.md: https://api.skillmd.com/api/skills/comfy-org/slack-msg-update/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: Comfy-Org (https://skillmd.com/u/comfy-org)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/comfy-org/slack-msg-update

---


# Slack Message Update

This skill updates existing Slack messages in channels or threads.

## Usage

```bash
prbot slack update -c <CHANNEL_ID> -t <MESSAGE_TS> -m "<NEW_TEXT>"
```

## Parameters

- `-c, --channel` (required): Slack channel ID (e.g., `C123456789`)
- `-t, --ts` (required): Message timestamp in Slack format (e.g., `1234567890.123456`)
- `-m, --text` (required): New message text to replace the existing content

## Examples

```bash
# Update a message with new status
prbot slack update -c C07V123ABC -t 1234567890.123456 -m "Task completed successfully!"

# Update with markdown formatting
prbot slack update -c C07V123ABC -t 1234567890.123456 -m "*Bold text* and _italic text_"
```

## Notes

- The bot must have already posted the original message to update it
- Requires `chat:write` Slack OAuth scope
- Supports Slack's mrkdwn formatting