slack

slack is a skill for Claude Code, Codex from aleksbuss/orchestra. It costs 35 tokens per session (732 once invoked), scanned A, a copy of slack, MIT.

A set of actions for controlling Slack, a team messaging service, through an automation tool. It works with channels and private messages.

In plain words
What is it for?
Use it to read, send, edit, or delete messages; add or remove reactions; manage pins; and look up members or custom emojis.
Why use it?
It avoids switching to Slack for routine message and channel-management tasks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to read, send, edit, or delete messages; add or remove reactions; manage pins; and look up members or custom emojis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aleksbuss/orchestra/slack
Install

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.

Any agent
npx skills add aleksbuss/orchestra --skill slack
Clone the repo
git clone --depth 1 https://github.com/aleksbuss/orchestra

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for slack

README.md
[![agentmods](https://agentmods.dev/badge/skills/aleksbuss/orchestra/slack/github.svg)](https://agentmods.dev/skills/aleksbuss/orchestra/slack)
Your own site
<a href="https://agentmods.dev/skills/aleksbuss/orchestra/slack"><img src="https://agentmods.dev/badge/skills/aleksbuss/orchestra/slack/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for slack

Your own site · 80×15
<a href="https://agentmods.dev/skills/aleksbuss/orchestra/slack"><img src="https://agentmods.dev/badge/skills/aleksbuss/orchestra/slack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 732 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00035 $0.00732
Opus 5.5 $0.00014 $0.00293
Sonnet 5.5 $0.00007 $0.00146
Haiku 4.5 $0.00003 $0.00073

Measured 1mo ago against content hash 86fbaf4c2b62, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 1mo 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.

Origin

This is a copy

89% identical to slack — 8 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.

bundled-skills/slack/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 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 Orchestra.

Inputs to collect

  • channelId and messageId (Slack message timestamp, e.g. 1712023032.1234).
  • For reactions, an emoji (Unicode or :name:).
  • For message sends, a to target (channel:<id> or user:<id>) and content.

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 Orchestra"
}

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"
}

Read the full file on GitHub · 145 lines

Changes

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.

  1. 1mo ago First seen · 145 lines · 35 tokens per session scan A 86fbaf4c2b62

Subscribe to this mod's changes

slack is a skill published in the GitHub repository aleksbuss/orchestra (2 stars, last pushed 19d ago), licensed MIT. It adds 35 tokens to every session and 732 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to slack, differing in 8 lines, and is treated as a copy.

Related

Other skills, from other repositories

ama-memory

Use AMA memory in OpenClaw to recall prior context, capture turns, inspect stored state, end sessions, or delete a user's memory when asked.

Sherlockwz/AMA · 33 tokens

data-analysis

A careful workflow for working with table-like files such as CSV, Excel, TSV, JSON, and Parquet. It requires inspecting the data before writing small analysis steps, then checking each result.

opencmit/alphora · 94 tokens

deep-research

Use this skill for any task that requires in-depth research, investigation, or comprehensive report generation on a topic. This includes: producing industry analysis, market research, technology surveys, competitive intelligence, trend reports, or any deliverable that synthesizes information from multiple sources into…

opencmit/alphora · 159 tokens

cg-work-memory

Use when a local agent needs to submit a concise public work-memory report for its own completed local task through cg report work-memory.

Intelligent-Internet/CommonGround · 31 tokens

security-audit

Auditoria de segurança aplicada (AppSec). Varre código, dependências e configurações contra OWASP Top 10 / CWE Top 25, identifica segredos expostos, valida controles de auth/authz e gera relatório priorizado. Use para "revisar segurança", "auditar vulnerabilidades", "threat modeling" ou "security review".

rcelebrone/DotAgents · 76 tokens

comm-agent-skill

Communication specialist for the OpenClaw multi-agent system. Use this skill when the task involves: drafting or sending emails, posting to Discord or other chat platforms, scheduling calendar events, sending notifications, or any outbound communication on behalf of the user. Always drafts before sending and requires…

parijatmukherjee/openclaw-hawkins · 74 tokens