Borrowing it
Nothing to install: this file belongs to arfar-x/agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/arfar-x/agent-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/arfar-x/agent-skillsWrote 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/arfar-x/agent-skills/agents-md)<a href="https://agentmods.dev/instructions/arfar-x/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/arfar-x/agent-skills/agents-md/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/instructions/arfar-x/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/arfar-x/agent-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.05533 | $0.05533 |
| Opus 5.5 | $0.02213 | $0.02213 |
| Sonnet 5.5 | $0.01107 | $0.01107 |
| Haiku 4.5 | $0.00553 | $0.00553 |
Grade A, and why
agent-skills AGENTS.md 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 14d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 14d ago Changed · +11 lines · +170 tokens per session 43810a52874c
- 15d ago Changed · +13 lines · +216 tokens per session fc6439893433
- 1mo ago Changed · +18 lines · +301 tokens per session c10f9cba96c2
- 1mo ago Changed · +61 lines · +944 tokens per session c9f3ae8f3a58
- 1mo ago Changed · +1 lines · +14 tokens per session 6c1ff9aac955
- 1mo ago First seen · 268 lines · 3,888 tokens per session scan A 6b8d59dea719
agent-skills AGENTS.md is an instructions file published in the GitHub repository arfar-x/agent-skills (13 stars, last pushed 13d ago), with no licence file. It adds 5,533 tokens to every session, about $0.0221 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 2026-08-31.
Other instructions, from other repositories
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next.js AGENTS.md
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