pmm vs HackMD
pmm is a plugin bundle for AI coding tools published by NominexHQ. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). HackMD is an MCP server published by yuna0x0. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-20. 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 |  pmm |  HackMD |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 2.7.0 Forks (GitHub): 8 Stars (GitHub): 15 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.5.7 Downloads/month (npm): 470 Downloads/week (npm): 63 Forks (GitHub): 17 Stars (GitHub): 68 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 | pmm | HackMD |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 15 (worse) | 68 (better) |
| Forks (GitHub) (differs) | 8 (worse) | 17 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server or your machine |
| Transport (differs) | Not stated | stdio, Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 2, secrets among them: 1 |
| Hooks it runs (differs) | 2 | Not published |
| Parts of the bundle (differs) | 14 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/nominexhq/pmm-plugin | github.com/yuna0x0/hackmd-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Answered with HTTP 404 (3 days ago) |
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
pmm
If you have ever had AI hallucinate and make things up (and gaslight you, even): it's because summaries do not preserve nuance. Each /compact cycle summarises and compresses. Decisions lose their rationale. Lessons lose their context. By Monday, you're re-explaining choices you made on Thursday. That's context rot. PMM fixes that. Every session, Claude loads what it already knows, then adds to it. Markdown files, git-backed. No database, no setup. Decisions tracked with rationale: not just what but. git log as your memory audit trail. Memory that compounds, not rots.
HackMD
A Model Context Protocol server for integrating HackMD's note-taking platform with AI assistants.
How to run each
pmm As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install pmm@claude-communityHackMD As a local MCP server: npm package
claude mcp add --env "HACKMD_API_TOKEN=<YOUR_HACKMD_API_TOKEN>" --transport stdio hackmd-mcp -- npx -y hackmd-mcpRequires: HACKMD_API_TOKEN (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only HackMD has a remote endpoint we check. How we check endpoints
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 pmm publish no settings it asks for, so we do not compare settings.
What it can do: pmm · What it can do: HackMD · 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. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.