A0 vs Zero Slop
A0 is a plugin bundle for AI coding tools published by Joe Simo. Marketplaces we read that list it: 1 (Community GitHub marketplaces). Zero Slop is a plugin bundle for AI coding tools published by Manav Mishra. Marketplaces we read that list it: 1 (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 |  A0 | |
|---|---|---|
| Community marketplace joe-simo/a0 | Listed Version: 0.8.16 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Community marketplace manavmishra/zeroslop | Not listed | Listed Version: 2.12.22 Forks (GitHub): 5 Stars (GitHub): 133 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 | A0 | Zero Slop |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 0 (worse) | 133 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 5 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (mcp.zero-slop.ai/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 6 | 2 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/joe-simo/a0 | github.com/manavmishra/zeroslop |
| Changes in the last 7 days | 2 | 2 |
| First seen | 2026-10-13 | 2026-10-13 |
| 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
A0
A0 language skill, the a0 MCP server, an after-edit check hook and A0 commands.
Zero Slop
Zero Slop is a skill for Claude Code, not an AI model. Claude performs distinct interpreting, rewriting, copy-editing, and read-aloud roles; local tools score the writing and protect facts, then Claude and the tools verify the final text. Private learning adapts to later writer edits. The local checks run offline and have zero dependencies.
How to run each
A0 As a Claude Code plugin
/plugin marketplace add joe-simo/a0
/plugin install a0@a0Zero Slop As a Claude Code plugin
/plugin marketplace add manavmishra/zeroslop
/plugin install zero-slop@zero-slopCommands 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: A0 · What it can do: Zero Slop · Compare two other plugins
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.