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 instructions/gutomec/nirvana-os-engine/claude-mdgit clone --depth 1 https://github.com/gutomec/nirvana-os-engineWrote 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/instructions/gutomec/nirvana-os-engine/claude-md)<a href="https://agentmods.dev/instructions/gutomec/nirvana-os-engine/claude-md"><img src="https://agentmods.dev/badge/instructions/gutomec/nirvana-os-engine/claude-md.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 | $0.04601 | $0.04601 |
| Opus 5 | $0.02301 | $0.02301 |
| Sonnet 5 | $0.00920 | $0.00920 |
| Haiku 4.5 | $0.00460 | $0.00460 |
Grade C, and why
nirvana-os-engine CLAUDE.md scanned grade C with 2 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 yesterday.
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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -fsSL https://bun.sh/install | bash # macOS / Linux Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -fsSL https://bun.sh/install | bash # macOS / Linux The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- yesterday Changed · +39 lines · +479 tokens per session 8aa201db8683
- 5d ago First seen · 282 lines · 4,122 tokens per session scan C 68c5ea75b839
nirvana-os-engine CLAUDE.md is an instructions file published in the GitHub repository gutomec/nirvana-os-engine (68 stars, last pushed yesterday), with no licence file. It adds 4,601 tokens to every session, about $0.0230 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
nova CLAUDE.md
Claude Code instructions for djbelieny/nova, covering nova — architecture & conventions, message flow, key modules, agent system and agent roster.
agentconfig.org AGENTS.md
Instructions for agentconfig/agentconfig.org, covering agent instructions for agentconfig.org, project overview, target audience, site structure and tech stack.
agent-eve CLAUDE.md
Instructions for shehryarsaroya/agent-eve, covering claude.md — agent eve (né the compact, then agent transfer), 0. 🚨 hard rules, 1. what this is, 2. doc map and 3. state of play (2026-07-26).
team-shinchan AGENTS.md
Instructions for seokan-jeong/team-shinchan, covering agents.md - team-shinchan agent map, layer architecture, agent registry, call flow and quick reference.
coordinate-agents AGENTS.md
AGENTS.md instructions for hogancv/coordinate-agents, covering repository instructions for ai contributors, canonical identity, repository map, required checks and change rules.
fleet-memory CLAUDE.md
Claude Code instructions for Holetron-lab/fleet-memory, covering claude.md, project overview, development commands, local development (api + ui) and start both api server and control plane ui.