Ouroboros

Pins an acceptance spec; the verify command and expected output never enter the success contract.

io.github.Q00/ouroboros · Repository · version 0.51.5 · 5.4k stars · listed from registry

Install

The sweep installs into a clean prefix, but this is the command a user would run:

uvx ouroboros-ai

Results by platform

Linux

MCP handshake failed2026-08-16 · probed over pypi

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
Ouroboros collects anonymous usage data (commands, versions, success rates - never code, prompts, or file contents) to guide improvements and to publish aggregate adoption stats.
Opt out anytime: export OUROBOROS_TELEMETRY=0  |  details: https://github.com/Q00/ouroboros/blob/main/TELEMETRY.md

MCP dependencies not installed: MCP SDK v2 server API unavailable. Install with:
pip install 'ouroboros-ai[mcp]'
Run MCP 2 in an isolated profile:
  uvx --isolated --python '>=3.12' --from 'ouroboros-ai[mcp]' ouroboros mcp 
serve --runtime claude-cli
or:
  pipx run --spec 'ouroboros-ai[mcp]' ouroboros mcp serve --runtime claude-cli
Do not combine it with the MCP 1.x-based [claude] or [claude-sdk] extras; use 
[claude-cli] for the CLI path.

macOS

MCP handshake failed2026-08-16 · probed over pypi

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
Ouroboros collects anonymous usage data (commands, versions, success rates - never code, prompts, or file contents) to guide improvements and to publish aggregate adoption stats.
Opt out anytime: export OUROBOROS_TELEMETRY=0  |  details: https://github.com/Q00/ouroboros/blob/main/TELEMETRY.md

MCP dependencies not installed: MCP SDK v2 server API unavailable. Install with:
pip install 'ouroboros-ai[mcp]'
Run MCP 2 in an isolated profile:
  uvx --isolated --python '>=3.12' --from 'ouroboros-ai[mcp]' ouroboros mcp 
serve --runtime claude-cli
or:
  pipx run --spec 'ouroboros-ai[mcp]' ouroboros mcp serve --runtime claude-cli
Do not combine it with the MCP 1.x-based [claude] or [claude-sdk] extras; use 
[claude-cli] for the CLI path.

Windows

MCP handshake failed2026-08-16 · probed over pypi

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
Ouroboros collects anonymous usage data (commands, versions, success rates - never code, prompts, or file contents) to guide improvements and to publish aggregate adoption stats.
Opt out anytime: export OUROBOROS_TELEMETRY=0  |  details: https://github.com/Q00/ouroboros/blob/main/TELEMETRY.md

MCP dependencies not installed: MCP SDK v2 server API unavailable. Install 
with: pip install 'ouroboros-ai[mcp]'
Run MCP 2 in an isolated profile:
  uvx --isolated --python '>=3.12' --from 'ouroboros-ai[mcp]' ouroboros mcp 
serve --runtime claude-cli
or:
  pipx run --spec 'ouroboros-ai[mcp]' ouroboros mcp serve --runtime claude-cli
Do not combine it with the MCP 1.x-based [claude] or [claude-sdk] extras; use 
[claude-cli] for the CLI path.

Badge

Paste this into the project README to show the current result:

[![does it install](https://img.shields.io/endpoint?url=https://doesitinstall.com/badge/io.github.q00__ouroboros.json)](https://doesitinstall.com/s/io.github.q00__ouroboros.html)