Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add JansenAnalytics/claudex --skill slackgit clone --depth 1 https://github.com/JansenAnalytics/claudexWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jansenanalytics/claudex/slack)<a href="https://agentmods.dev/skills/jansenanalytics/claudex/slack"><img src="https://agentmods.dev/badge/skills/jansenanalytics/claudex/slack.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00037 | $0.00764 |
| Opus 5 | $0.00018 | $0.00382 |
| Sonnet 5 | $0.00007 | $0.00153 |
| Haiku 4.5 | $0.00004 | $0.00076 |
Grade A, and why
slack scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
73% identical to slack — 11 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Slack Actions
Overview
Use slack to react, manage pins, send/edit/delete messages, and fetch member info. The tool uses the bot token configured for OpenClaw.
Inputs to collect
channelIdandmessageId(Slack message timestamp, e.g.1712023032.1234).- For reactions, an
emoji(Unicode or:name:). - For message sends, a
totarget (channel:<id>oruser:<id>) andcontent.
Message context lines include slack message id and channel fields you can reuse directly.
Actions
Action groups
| Action group | Default | Notes |
|---|---|---|
| reactions | enabled | React + list reactions |
| messages | enabled | Read/send/edit/delete |
| pins | enabled | Pin/unpin/list |
| memberInfo | enabled | Member info |
| emojiList | enabled | Custom emoji list |
React to a message
{
"action": "react",
"channelId": "C123",
"messageId": "1712023032.1234",
"emoji": "✅"
}
List reactions
{
"action": "reactions",
"channelId": "C123",
"messageId": "1712023032.1234"
}
Send a message
{
"action": "sendMessage",
"to": "channel:C123",
"content": "Hello from OpenClaw"
}
Edit a message
{
"action": "editMessage",
"channelId": "C123",
"messageId": "1712023032.1234",
"content": "Updated text"
}
Delete a message
{
"action": "deleteMessage",
"channelId": "C123",
"messageId": "1712023032.1234"
}
Read recent messages
{
"action": "readMessages",
"channelId": "C123",
"limit": 20
}
Pin a message
{
"action": "pinMessage",
"channelId": "C123",
"messageId": "1712023032.1234"
}
Unpin a message
{
"action": "unpinMessage",
"channelId": "C123",
"messageId": "1712023032.1234"
}
List pinned items
{
"action": "listPins",
"channelId": "C123"
}
Member info
{
"action": "memberInfo",
"userId": "U123"
}
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 148 lines · 37 tokens per session scan A e4546cb84b77
slack is a skill published in the GitHub repository JansenAnalytics/claudex (5 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 764 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 73% identical to slack, differing in 11 lines, and is treated as a copy.
Other skills, from other repositories
c-slack
Send messages and upload files to Slack channels using the slack CLI. Supports direct messages, channel posts, file uploads, and thread replies.
slack-skill
Comprehensive Slack integration for messaging, channels, users, reactions, pins, and workspace management.
remindme
⏰ simple Telegram reminders for OpenClaw. cron, zero dependencies.
slack-tool
Slack integration tool for send/receive messages, search, unreplied checks, channel listing, and emoji reactions. Use when: posting to Slack, listing channels, replying in threads, checking unreplied items, or adding reactions.
slack-messaging
Use when writing, drafting, scheduling, or improving a Slack message, announcement, or reply sent via the Slack MCP tools (slacksendmessage, slacksendmessagedraft, slackschedulemessage). Covers Slack markdown formatting, message structure, thread etiquette, reactions, and scheduling, and points to the right dialect…
slackcli
Read, send, search, and manage Slack workspaces with the slackcli binary. Installs slackcli if missing and checks or proposes authentication first. Use whenever the user mentions Slack or pastes a slack.com link.