slack-cli

A skill for managing Slack, a team messaging service, through its command-line tool and web interface. It covers app administration as well as messages, channels, users, and search.

In plain words
What is it for?
Useful for installing or managing Slack apps, sending messages, working with channels and users, and searching workspace content.
Why use it?
It puts common Slack administration and workspace operations into repeatable commands instead of requiring manual work in the Slack interface.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/abdullahkhawer/devops-skills/slack-cli
Any agent
npx skills add abdullahkhawer/devops-skills --skill slack-cli
Clone the repo
git clone --depth 1 https://github.com/abdullahkhawer/devops-skills

Made for: Claude Code, Codex.

Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,282 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin original No closer match found 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 $0.00031 $0.01282
Opus 5 $0.00015 $0.00641
Sonnet 5 $0.00006 $0.00256
Haiku 4.5 $0.00003 $0.00128

Measured 2d ago against content hash e9b74c1cdedf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

slack-cli scanned grade B with 2 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 2d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

echo "xoxp-..." > ~/.slack/token && chmod 600 ~/.slack/token

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

description: Perform Slack operations using the Slack CLI for app management and the Slack Web API (curl) for messaging, channel, and user operations.
skills/slack-cli/SKILL.md · 142 lines

How it starts

The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Slack CLI Skill

This skill uses two tools depending on the operation:

Use case Tool
App management (install, deploy, auth) slack CLI
Messaging, channels, users, search Slack Web API via curl

Configuration

Update the Slack workspace name below before using this skill:

Setting Value
Slack Workspace <your-workspace>.slack.com
Slack Team Name (for CLI) <your-team-name>

Tool 1 — Slack CLI (app management only)

Prerequisites (one-time setup by user)

If not already authenticated, ask the user to complete these steps manually. Do not perform these steps yourself.

brew install slack-cli                # install if needed
slack login                           # authenticate
slack auth list                       # confirm your workspace is listed

Commands

Always pass --team <your-team-name> on every command.

Command Description
slack auth list List authenticated workspaces
slack auth whoami Show current authenticated user
slack app list --team <your-team-name> List apps in the workspace
slack app install --team <your-team-name> Install app to workspace
slack app uninstall --team <your-team-name> Uninstall app (requires explicit user approval)
slack deploy --team <your-team-name> Deploy app to Slack Platform
slack trigger list --team <your-team-name> List triggers for an app

Tool 2 — Slack Web API via curl (messaging, channels, users)

Prerequisites (one-time setup by user)

To get started, create a Slack app at api.slack.com/apps. On the OAuth & Permissions page, add the required scopes, then install the app to your workspace. After installation, your user token (starting with xoxp-) will appear on the same page. Save it to ~/.slack/token. Never print or display the token value. Do not perform these steps yourself.

Required token scopes: channels:read, channels:history, groups:read, groups:history, users:read

Read the full file on GitHub · 142 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. 2d ago First seen · 142 lines · 31 tokens per session scan B e9b74c1cdedf

Subscribe to this mod's changes

slack-cli is a skill published in the GitHub repository abdullahkhawer/devops-skills (7 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 31 tokens to every session and 1,282 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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