Knowledge Work Plugins is an open-source collection of Claude extensions organized around roles such as productivity, sales, and customer support. Each plugin combines role-specific guidance, connectors, commands, and sub-agents so knowledge workers can use Claude with their team’s tools and processes. The catalogue entries are examples of, or workflows from, this plugin collection.
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 anthropics/knowledge-work-plugins --skill team-chatgit clone --depth 1 https://github.com/anthropics/knowledge-work-pluginsWrote 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/anthropics/knowledge-work-plugins/team-chat)<a href="https://agentmods.dev/skills/anthropics/knowledge-work-plugins/team-chat"><img src="https://agentmods.dev/badge/skills/anthropics/knowledge-work-plugins/team-chat.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 | $0.00045 | $0.05581 |
| Opus 5 | $0.00023 | $0.02790 |
| Sonnet 5 | $0.00009 | $0.01116 |
| Haiku 4.5 | $0.00005 | $0.00558 |
Grade B, and why
build-zoom-team-chat-app scanned grade B with 1 finding 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
const response = await fetch('https://api.zoom.us/v2/chat/users/me/messages', { method: 'POST', Copies of this mod
2 near-identical copies found in the catalogue:
- build-zoom-team-chat-app — 98% identical, 53 lines differ
- zoom-team-chat — 89% identical, 86 lines differ
How it starts
The opening of the file, as written. The whole thing — 688 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/build-zoom-team-chat-app
Background reference for Zoom Team Chat integrations. Use this after the workflow is clear, especially when the Team Chat API versus Chatbot API distinction matters.
Read This First (Critical)
There are two different integration types and they are not interchangeable:
-
Team Chat API (user type)
- Sends messages as a real authenticated user
- Uses User OAuth (
authorization_code) - Endpoint family:
/v2/chat/users/...
-
Chatbot API (bot type)
- Sends messages as your bot identity
- Uses Client Credentials (
client_credentials) - Endpoint family:
/v2/im/chat/messages
If you choose the wrong type early, auth/scopes/endpoints all mismatch and implementation fails.
Official Documentation: https://developers.zoom.us/docs/team-chat/
Chatbot Documentation: https://developers.zoom.us/docs/team-chat/chatbot/extend/
API Reference: https://developers.zoom.us/docs/api/rest/reference/chatbot/
Quick Links
New to Team Chat? Follow this path:
- Get Started - End-to-end fast path (user type vs bot type)
- Choose Your API - Team Chat API vs Chatbot API
- Environment Setup - Credentials, scopes, app configuration
- OAuth Setup - Complete authentication flow
- Send First Message - Working code to send messages
Reference:
- Chatbot Message Cards - Complete card component reference
- Webhook Events - All webhook event types
- API Reference - Endpoints, methods, parameters
- Sample Applications - 10+ official sample apps
- Integrated Index - see the section below in this file
Having issues?
- Authentication errors → OAuth Troubleshooting
- Webhook not receiving events → Webhook Setup Guide
- Messages not sending → Common Issues
- Start with quick checks → 5-Minute Runbook
What ships with it
37 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.
- concepts/api-selection.md 7.3 KB
- concepts/authentication.md 1.4 KB
- concepts/deployment.md 719 B
- concepts/environment-setup.md 8.8 KB
- concepts/message-structure.md 676 B
- concepts/security.md 479 B
- concepts/webhooks.md 12 KB
- examples/button-actions.md 394 B
- examples/channel-management.md 321 B
- examples/chatbot-setup.md 12 KB
- examples/database-integration.md 313 B
- examples/dropdown-selects.md 305 B
- examples/form-submissions.md 386 B
- examples/llm-integration.md 532 B
- examples/multi-step-workflows.md 301 B
- examples/oauth-setup.md 1.6 KB
- examples/scheduled-alerts.md 353 B
- examples/send-message.md 418 B
- examples/slash-commands.md 510 B
- examples/token-management.md 443 B
- get-started.md 1.6 KB
- references/api-reference.md 539 B
- references/environment-variables.md 1006 B
- references/error-codes.md 449 B
- references/jid-formats.md 248 B
- references/message-cards.md 6.6 KB
- references/rate-limits.md 206 B
- references/sample-comparison.md 1.1 KB
- references/samples.md 14 KB
- references/scopes.md 341 B
- references/webhook-events.md 565 B
- RUNBOOK.md 2.7 KB
- troubleshooting/common-issues.md 9.7 KB
- troubleshooting/deployment-issues.md 641 B
- troubleshooting/message-issues.md 318 B
- troubleshooting/oauth-issues.md 882 B
- troubleshooting/webhook-issues.md 365 B
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.
- 2d ago First seen · 688 lines · 45 tokens per session scan B 99b124526015
build-zoom-team-chat-app is a skill published in the GitHub repository anthropics/knowledge-work-plugins (23,902 stars, last pushed yesterday), licensed Apache-2.0. It adds 45 tokens to every session and 5,581 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (sends data to an external url). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.
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