Enables sending Slack messages, blocks, and approval requests.
Install
mkdir -p .claude/skills/slack-stelios12312312 && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/17560" && unzip -o skill.zip -d .claude/skills/slack-stelios12312312 && rm skill.zipInstalls to .claude/skills/slack-stelios12312312
Activation
This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.
How to send Slack messages and approval requests via the Tesseract operatorKey capabilities
- →Send plain text messages to Slack channels
- →Send rich Block Kit messages to Slack channels
- →Post approval requests with interactive buttons in Slack
How it works
The skill uses a Slack connector to interact with the Slack API. It sends messages or posts approval requests to specified channels.
Inputs & outputs
When to use slack
- →Sending a notification message
- →Requesting manual approval via Slack
- →Posting rich format updates
About this skill
Slack — Reference Skill
Authentication
- Bot Token via
SLACK_BOT_TOKENenv var - App Token via
SLACK_APP_TOKENenv var (Socket Mode) - Connector:
tesseract_operator/connectors/slack.py - Skills:
tesseract_operator/skills/slack_skills.py
Available Skills (3 total)
| Skill | Risk | MCP | Description |
|---|---|---|---|
slack.send_message | LOW | ✅ | Send a plain text message |
slack.send_blocks | LOW | ✅ | Send a rich Block Kit message |
slack.post_approval | MEDIUM | ❌ | Post an approval request with buttons |
Usage Pattern
slack = ctx.extras["slack"]
slack.send_message(channel="#sales-ops", text="Daily brief ready")
slack.send_blocks(channel="#alerts", blocks=[...]) # Block Kit
Known Gotchas
- Socket Mode requires
SLACK_APP_TOKEN(xapp-...) in addition to bot token - Channel must be joined by the bot before posting
When not to use it
- →When the bot has not joined the target channel
- →When `SLACK_APP_TOKEN` is missing for Socket Mode
- →When `SLACK_BOT_TOKEN` is not set
Prerequisites
Limitations
- →Socket Mode requires `SLACK_APP_TOKEN`
- →Channel must be joined by the bot before posting
- →Approval requests are marked as MEDIUM risk
How it compares
This skill provides direct programmatic access to Slack messaging and approval workflows, unlike manual interaction with the Slack application.
Compared to similar skills
slack side by side with the closest alternatives in the catalog.
| Skill | Installs | Updated | Safety | Difficulty |
|---|---|---|---|---|
| slack (this skill) | 0 | 1mo | No flags | Beginner |
| discord-send-message | 7 | 9mo | Review | Intermediate |
| sendgrid-automation | 1 | 3mo | No flags | Intermediate |
| add-telegram | 1 | 1mo | Review | Intermediate |
Try saying
Example prompts that trigger this skill in your AI assistant.
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