Ouroboros
Pins an acceptance spec; the verify command and expected output never enter the success contract.
MCP server · by Q00
About
Ouroboros is an MCP server published by Q00. Marketplaces we read that list it: 2 (Official MCP Registry, Community GitHub marketplaces). The last change we recorded was on 2026-10-14. As of our marketplace pass on 2026-10-15.
What it asks for
- Runs on your machine
- Hooks: 3
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Package
PyPI ouroboros-ai (ouroboros-ai on PyPI)
- PyPI downloads/week: 13 352 (2026-10-13)
- PyPI downloads/month: 91 699 (2026-10-13)
- Latest version on PyPI: 0.55.7, published 2026-10-12
No known vulnerabilities in OSV for 0.51.5 (checked 2026-10-14)
PyPI facts come from pypi.org, PyPI downloads from pypistats.org. Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero. Vulnerability records come from OSV.dev (CC BY 4.0) and concern the declared version only; a listing that declares no version gets no answer. We do not scan code.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: PyPI package
Built from what Official MCP Registry declares.
claude mcp add --transport stdio ouroboros -- uvx --from "ouroboros-ai[mcp]" --with mcp==2.0.0 ouroboros ouroboros-ai mcp serve --runtime claude-cli[mcp_servers.ouroboros]
command = "uvx"
args = ["--from", "ouroboros-ai[mcp]", "--with", "mcp==2.0.0", "ouroboros", "ouroboros-ai", "mcp", "serve", "--runtime", "claude-cli"]{
"mcpServers": {
"ouroboros": {
"command": "uvx",
"args": [
"--from",
"ouroboros-ai[mcp]",
"--with",
"mcp==2.0.0",
"ouroboros",
"ouroboros-ai",
"mcp",
"serve",
"--runtime",
"claude-cli"
]
}
}
}As a Claude Code plugin
Built from what Community GitHub marketplaces declares.
/plugin marketplace add q00/ouroboros
/plugin install ouroboros@ouroborosWhere it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 0.51.5 | Downloads/month (PyPI): 91 699 Downloads/week (PyPI): 13 352 Forks (GitHub): 627 Stars (GitHub): 6 215 |
Not marked |
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.
Also listed in one community marketplace
| Marketplace | Repository | Stars (GitHub) |
|---|---|---|
| ouroboros | q00/ouroboros | 6 215 |
How its figures have moved
- 2026-10-12627
- 2026-10-14627
- 2026-10-126.2k
- 2026-10-146.2k
Each dot is a day we read a different number; flat stretches are days the number did not move. Figures of different marketplaces are never added up.
What the bundle contains
As published on Community GitHub marketplaces.
MCP servers: 1
ouroboros
Skills: 23
autobrownfieldcancelevaluateevolvehelpinterviewmaintainoooouroboros-configpmpublish
Show the remaining 11
qaralphresume-sessionrunseedsetupstatustutorialunstuckupdatewelcome
Hooks: 3
PostToolUseSessionStartUserPromptSubmit
What changed
- Appeared on a new marketplace: Community GitHub marketplaces
- Community GitHub marketplaces: appeared
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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
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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.