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 agentmods add skills/q00/ouroboros/seednpx skills add Q00/ouroboros --skill seedgit 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/seed)<a href="https://agentmods.dev/skills/q00/ouroboros/seed"><img src="https://agentmods.dev/badge/skills/q00/ouroboros/seed.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00009 | $0.07144 |
| Opus 5 | $0.00005 | $0.03572 |
| Sonnet 5 | $0.00002 | $0.01429 |
| Haiku 4.5 | $0.00001 | $0.00714 |
Grade A, and why
seed 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 2d 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 — 486 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/ouroboros:seed
Generate validated Seed specifications from interview results.
Required Skill Capabilities
ask_user— ask human-judgment questions through the active runtime's user-question surface.inspect_code— read repo-local agent roles and recover exact context from local files before guessing.call_mcp— use available Ouroboros MCP tools directly, including runtime tool discovery when a deferred MCP surface must be loaded.run_shell— run bounded local commands for audit-trail writes and setup steps.refine_answer— confirm free-form user decisions before treating them as accepted seed revisions.maintain_ledger— keep QA scores, candidate decisions, rejected proposals, and audit trail keys visible.
Usage
ooo seed [session_id]
/ouroboros:seed [session_id]
Trigger keywords: "crystallize", "generate seed"
Instructions
When the user invokes this skill:
Python Runtime (Required)
Before running any shell snippet below, define this resolver in the same shell.
It accepts only Python 3.12 or newer, prefers python3 and then python, and
uses uv as the final fallback. Call ouroboros_python directly and quote every
argument passed to it; the function preserves arguments and heredoc/stdin input.
Only the probe and child interpreter discard inherited CPython path-selection
overrides; the caller shell keeps its environment unchanged.
ouroboros_python() {
if command -v python3 >/dev/null 2>&1 &&
(unset PYTHONHOME PYTHONPATH PYTHONPLATLIBDIR PYTHONEXECUTABLE __PYVENV_LAUNCHER__; command python3 -c 'import sys; raise SystemExit(sys.version_info < (3, 12))') >/dev/null 2>&1
then
(unset PYTHONHOME PYTHONPATH PYTHONPLATLIBDIR PYTHONEXECUTABLE __PYVENV_LAUNCHER__; command python3 "$@")
return
fi
if command -v python >/dev/null 2>&1 &&
(unset PYTHONHOME PYTHONPATH PYTHONPLATLIBDIR PYTHONEXECUTABLE __PYVENV_LAUNCHER__; command python -c 'import sys; raise SystemExit(sys.version_info < (3, 12))') >/dev/null 2>&1
then
(unset PYTHONHOME PYTHONPATH PYTHONPLATLIBDIR PYTHONEXECUTABLE __PYVENV_LAUNCHER__; command python "$@")
return
fi
if command -v uv >/dev/null 2>&1; then
(unset PYTHONHOME PYTHONPATH PYTHONPLATLIBDIR PYTHONEXECUTABLE __PYVENV_LAUNCHER__; command uv run --no-project --quiet --python '>=3.12' python "$@")
return
fi
printf '%s\n' 'Ouroboros skills require Python >= 3.12 or uv on PATH.' >&2
return 127
}
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.
- 2d ago Changed · +17 lines a101c39525c5
- 5d ago First seen · 469 lines · 9 tokens per session scan A f1e78a0bbd0d
seed is a skill published in the GitHub repository Q00/ouroboros (5,769 stars, last pushed today), licensed MIT. It adds 9 tokens to every session and 7,144 once invoked, about $0.0000 per session on Opus 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.
Other skills, from other repositories
llm-pipeline
Use when wiring several LLM calls into a production flow: typed contracts between steps, a router/gateway so 429s, timeouts and outages fail over instead of taking you down, and cost control via caching, model tiers and abort caps. NOT single-prompt wording (that is prompt-engineering), NOT a model-driven tool loop…
worker-integration
Worker-Agent integration for intelligent task dispatch and performance tracking.
foundry-config-setup
Resolve missing setup caused by a hardcoded Foundry project endpoint or model in a sample. Use when a sample fails because it uses a placeholder/hardcoded projectendpoint (for example "https://your-project.services.ai.azure.com") or a hardcoded model instead of reading them from the environment.
jetson-diagnostic
Read-only Jetson health snapshot for identity, memory, GPU, thermal, power, storage, services, and top processes.
nemo-automodel-launcher-config
Configure NeMo AutoModel job launches for interactive runs, Slurm clusters, and SkyPilot cloud execution.
agile-product-owner
../../../product-team/agile-product-owner/skills/agile-product-owner/SKILL.md.