imessage vs slack
imessage is a plugin bundle for AI coding tools published by anthropics. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-official). slack is a plugin bundle for AI coding tools published by slackapi. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces). As of our marketplace pass on 2026-10-14. 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 |  imessage |  slack |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 0.2.0 Forks (GitHub): 4 268 Stars (GitHub): 37 981 Not marked · First seen |
Listed Version: 1.4.1 Forks (GitHub): 38 Stars (GitHub): 147 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.2.0 Forks (GitHub): 38 Stars (GitHub): 147 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 | imessage | slack |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 37 981 (better) | 147 (worse) |
| Forks (GitHub) (differs) | 4 268 (better) | 38 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (mcp.slack.com/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 3 | 14 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/anthropics/claude-plugins-official | github.com/slackapi/slack-mcp-plugin |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | not checked yet |
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
imessage
iMessage messaging bridge with built-in access control. Reads chat.db directly, sends via AppleScript. Manage pairing, allowlists, and policy via /imessage:access.
slack
Slack workspace integration. Search messages, access channels, read threads, and stay connected with your team's communications while coding. Find relevant discussions and context quickly.
How to run each
imessage As a Claude Code plugin
/plugin install imessage@claude-plugins-officialslack As a Claude Code plugin
/plugin install slack@claude-plugins-officialCommands 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
Neither one's marketplaces publish the settings it asks for.
What it can do: imessage · What it can do: slack · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. 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.