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.
git 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/mcp/anthropics/knowledge-work-plugins/chembl)<a href="https://agentmods.dev/mcp/anthropics/knowledge-work-plugins/chembl"><img src="https://agentmods.dev/badge/mcp/anthropics/knowledge-work-plugins/chembl/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.
<a href="https://agentmods.dev/mcp/anthropics/knowledge-work-plugins/chembl"><img src="https://agentmods.dev/badge/mcp/anthropics/knowledge-work-plugins/chembl.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
chembl 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- chembl — 100% identical, 0 lines differ
What it actually says
{
"chembl": {
"type": "http",
"url": "https://hcls.mcp.claude.com/chembl/mcp"
}
}What else .mcp.json configures
This page is one entry in a file that holds 11. Installing the file brings all of them; each is measured and scanned on its own page.
- MCP server benchling A not measured
- MCP server biorender A not measured
- MCP server biorxiv A not measured
- MCP server c-trials A not measured
- MCP server consensus A not measured
- MCP server ot A not measured
- MCP server owkin A not measured
- MCP server pubmed A not measured
- MCP server synapse A not measured
- MCP server wiley A not measured
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.
- 1mo ago First seen · 6 lines scan A 6abfab278b54
chembl is an MCP server published in the GitHub repository anthropics/knowledge-work-plugins (29,887 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.
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