cooperator vs Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a
cooperator is a plugin bundle for AI coding tools published by cooperbench. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a is an MCP server published by adelaidasofia. Marketplaces we read that list it: 3 (Official MCP Registry, Community GitHub marketplaces, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-15. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  cooperator |  Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.7 Forks (GitHub): 0 Stars (GitHub): 2 Not marked · First seen |
Listed Version: 0.1.1 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
| Official MCP Registry | Not listed | Listed Version: 0.1.1 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | cooperator | Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 2 (better) | 1 (worse) |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (https://github.com/adelaidasofia/slack-mcp/releases/download/v0.1.1/slack-mcp.mcpb) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 1 |
| Hooks it runs (differs) | Not published | 1 |
| Parts of the bundle | 2 | 2 |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/cooperbench/cooperator-plugin | github.com/adelaidasofia/slack-mcp |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
cooperator
Allowing the agents of the same user or of the user teams to communicate between themselves while they are executing tasks. Imagine Slack, but for Claude agents.
Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a
Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, and triple-mode…
How to run each
cooperator As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install cooperator@claude-communityMulti-workspace Slack MCP server with draft+confirm safety, vault auto-export, a As a Claude Code plugin
/plugin marketplace add adelaidasofia/slack-mcp
/plugin install slack-mcp@slack-mcpRequires: SLACK_XOXC_TOKEN (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of cooperator publish no settings it asks for, so we do not compare settings.
What it can do: cooperator · What it can do: Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, a · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.