Q00/ouroboros is an Agent OS for running coding agents through interviews, staged evaluation, and repeated improvement cycles. It helps developers turn vague requests into tested code across multiple agent runtimes. Its catalogue add-ons provide workflows, agents, hooks, instructions, and integrations for operating those processes.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Q00/ouroboros --skill helpgit clone --depth 1 https://github.com/Q00/ouroborosWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/q00/ouroboros/help)<a href="https://agentmods.dev/skills/q00/ouroboros/help"><img src="https://agentmods.dev/badge/skills/q00/ouroboros/help/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/q00/ouroboros/help"><img src="https://agentmods.dev/badge/skills/q00/ouroboros/help.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00015 | $0.01281 |
| Opus 5.5 | $0.00006 | $0.00512 |
| Sonnet 5.5 | $0.00003 | $0.00256 |
| Haiku 4.5 | $0.00002 | $0.00128 |
Grade A, and why
ouroboros-help scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/ouroboros:ouroboros-help
Full reference guide for Ouroboros power users.
Usage
ooo help
/ouroboros:ouroboros-help
What Is Ouroboros?
A specification-first workflow engine: it turns vague ideas into a validated Seed (goal, constraints, acceptance criteria) before any code is written.
Interview → Seed → Execute → Evaluate
↑ ↓
└─── Evolutionary Loop ─────┘
Commands
Each ooo <name> is also the skill /ouroboros:<name>, except run, status,
config, and help, which are /ouroboros:ouroboros-<name>.
| Command | Purpose | Needs |
|---|---|---|
ooo / ooo welcome |
First-touch onboarding | none |
ooo setup |
Claude Code setup wizard | none |
ooo tutorial |
Interactive hands-on learning | none |
ooo help |
This reference | none |
ooo interview |
Socratic interview that exposes hidden assumptions | MCP, in-session fallback |
ooo seed |
Freeze interview results into a Seed | MCP, in-session fallback |
ooo auto |
Goal to A-grade Seed, then execute and verify in the background | MCP |
ooo run |
Execute a Seed and verify every acceptance criterion | MCP |
ooo evaluate |
Mechanical checks, semantic review per criterion, consensus when uncertain | MCP, in-session fallback |
ooo evolve |
Start or monitor an evolutionary loop across Seed generations | MCP |
ooo ralph |
Server-owned loop until verified (ouroboros_ralph runs it as a background job) |
MCP |
ooo unstuck |
Five lateral thinking personas, single or debate | MCP |
ooo status |
Session status and goal drift | MCP |
ooo qa |
General-purpose QA verdict for any artifact | MCP, in-session fallback |
ooo pm |
PM-focused interview and PRD | MCP |
ooo brownfield |
Scan and manage brownfield repo defaults; find <topic> ranks registered repos |
MCP |
ooo config |
Settings GUI for per-stage agents and models | CLI |
ooo cancel |
Cancel stuck or orphaned executions | CLI |
ooo resume-session |
List in-flight sessions and re-attach commands | CLI |
ooo update |
Check for updates and upgrade | CLI |
ooo publish |
Publish a Seed as GitHub Issues | gh |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago Changed · -1 lines b39240837852
- 7d ago Changed · -57 lines 480992669cea
- 26d ago Changed · +3 lines ca4e979d50e3
- 1mo ago Changed · +12 lines c865ef3022b7
- 1mo ago First seen · 146 lines · 15 tokens per session scan A a3a42d7fb533
ouroboros-help is a skill published in the GitHub repository Q00/ouroboros (6,265 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 1,281 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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