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 instructions/slackapi/slack-skills-plugin/agents-mdgit clone --depth 1 https://github.com/slackapi/slack-skills-pluginWhat 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 | $0.01527 | $0.01527 |
| Opus 5 | $0.00763 | $0.00763 |
| Sonnet 5 | $0.00305 | $0.00305 |
| Haiku 4.5 | $0.00153 | $0.00153 |
Grade A, and why
slack-skills-plugin AGENTS.md 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 today.
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 — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Slack Plugin
This plugin integrates Slack with Ai tools, providing tools to search, read, and send messages in Slack. It also offers useful skills for users and developers.
Commands
/slack:summarize-channel <channel-name>: Summarize recent activity in a Slack channel/slack:find-discussions <topic>: Find discussions about a specific topic across Slack channels/slack:draft-announcement <topic>: Draft a well-formatted Slack announcement and save it as a draft/slack:standup: Generate a standup update based on your recent Slack activity/slack:channel-digest <channel1, channel2, ...>: Get a digest of recent activity across multiple Slack channels
Development Commands
Requires Python 3.14+. Run make install before first use to set up the virtual environment and test dependencies.
Always use the make targets rather than invoking python, pytest, ruff, or other tools directly. The targets manage the virtualenv for you; running the underlying tools by hand skips that setup and will behave differently. If a make command is broken or missing something you need, fix the Makefile rather than working around it with the raw command.
Run make help for the full list of targets and what each does. The common ones:
| Command | Purpose |
|---|---|
make help |
Show this help message |
make install |
Set up everything (venv + deps) |
make lint |
Run linter checks (ruff for Python, rumdl for Markdown) |
make format |
Auto-format code (ruff for Python, rumdl for Markdown) |
make typecheck |
Run mypy static type checks |
make test-unit |
Run structural/unit validation tests |
make test-eval |
Run LLM-judged tests (DeepEval against Gemini) |
make test |
Run all tests (unit + eval) |
make clean |
Remove virtualenv and local Cursor install |
make cursor-install |
Install this plugin into a local Cursor for development |
make cursor-uninstall |
Uninstall this plugin from the local Cursor install |
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.
- today Changed · +13 lines · +237 tokens per session e79a2a190e86
- 3d ago First seen · 81 lines · 1,290 tokens per session scan A 16372fa96d1a
slack-skills-plugin AGENTS.md is an instructions file published in the GitHub repository slackapi/slack-skills-plugin (113 stars, last pushed yesterday), licensed MIT. It adds 1,527 tokens to every session, about $0.0076 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 2026-08-30.
Other instructions, from other repositories
agent-skills CLAUDE.md
Instructions for addyosmani/agent-skills, covering agent-skills, project structure, skills by phase, conventions and contributing.
superpowers-zh CLAUDE.md
Instructions for jnMetaCode/superpowers-zh, covering superpowers — 贡献者指南, 如果你是 ai agent, pull request 要求, 我们不会接受的内容 and 第三方依赖.
skill-buddy AGENTS.md
Instructions for konnga/skill-buddy, a project described as: AI Skills Buddy, A desktop workspace for managing, installing, and synchronizing Skills and MCP Servers across AI agents.
agent-skills AGENTS.md
Instructions for helderberto/agent-skills, covering agents.md, repository overview, project structure, integration model and opencode integration.
agent-skills CLAUDE.md
Instructions for SigNoz/agent-skills: Follow CONTRIBUTING.md for all contribution conventions.
full-stack-skills CLAUDE.md
Claude Code instructions for partme-ai/full-stack-skills, covering claude.md, project overview, skill directory structure, naming conventions and skill.md format.