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 agentmods add skills/kubiyabot/skill/slack-skillnpx skills add kubiyabot/skill --skill slack-skillgit clone --depth 1 https://github.com/kubiyabot/skillWrote 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/kubiyabot/skill/slack-skill)<a href="https://agentmods.dev/skills/kubiyabot/skill/slack-skill"><img src="https://agentmods.dev/badge/skills/kubiyabot/skill/slack-skill.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 | $0.00023 | $0.04893 |
| Opus 5 | $0.00012 | $0.02447 |
| Sonnet 5 | $0.00005 | $0.00979 |
| Haiku 4.5 | $0.00002 | $0.00489 |
Grade A, and why
slack-skill 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 702 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Slack Skill
Comprehensive Slack workspace integration with 30+ tools for messaging, channel management, user operations, reactions, pins, and more. Built with the Skill Engine SDK showcasing OAuth2 token-based authentication and the Slack Web API.
Overview
This skill provides full access to Slack's Web API, enabling automation of workspace communication and management tasks. It demonstrates type-safe parameter validation, structured error handling, and production-ready API integration patterns.
When to Use This Skill
Use this skill when you need to:
- Send messages to channels or direct messages to users
- Create, manage, and archive channels
- List and search workspace users and channels
- Add reactions and pin important messages
- Schedule messages for later delivery
- Manage threads and conversations
- Upload files and snippets
- Set user status and presence
- Search message history
- Automate Slack workflows
Prerequisites
- Slack Workspace: Admin or appropriate permissions
- Slack App: Create an app at api.slack.com/apps
- Bot Token: OAuth token with required scopes
Setting Up Your Slack App
- Go to https://api.slack.com/apps
- Click "Create New App" → "From scratch"
- Name your app (e.g., "Skill Engine Bot") and select your workspace
- Navigate to "OAuth & Permissions"
- Add Bot Token Scopes:
Required Scopes: - chat:write (Send messages) - channels:read (List public channels) - users:read (List users) - reactions:write (Add/remove reactions) - pins:write (Pin messages) - channels:manage (Create/archive channels) - groups:write (Manage private channels) - im:write (Send DMs) - mpim:write (Manage group DMs) - search:read (Search messages - optional) - users:write (Set status - optional) - files:write (Upload files - optional) - Click "Install to Workspace" and authorize
- Copy the "Bot User OAuth Token" (starts with
xoxb-)
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- yesterday First seen · 702 lines · 23 tokens per session scan A ed90ee72cca0
slack-skill is a skill published in the GitHub repository kubiyabot/skill (16 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 23 tokens to every session and 4,893 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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