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/saski/arnesto/agents-mdgit clone --depth 1 https://github.com/saski/arnestoWrote 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/saski/arnesto/agents-md)<a href="https://agentmods.dev/instructions/saski/arnesto/agents-md"><img src="https://agentmods.dev/badge/instructions/saski/arnesto/agents-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 5.1 | $0.00007 | $0.00007 |
| Opus 5 | $0.00003 | $0.00003 |
| Sonnet 5 | $0.00001 | $0.00001 |
| Haiku 4.5 | $0.00001 | $0.00001 |
Grade A, and why
arnesto 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 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- arnesto GEMINI.md — 100% identical, 0 lines differ
- arnesto CLAUDE.md — 100% identical, 0 lines differ
What it actually says
.agents/rules/repository.md
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 First seen · 1 lines · 7 tokens per session scan A c24a7bef95be
arnesto AGENTS.md is an instructions file published in the GitHub repository saski/arnesto (5 stars, last pushed 10d ago), licensed Unlicense. It adds 7 tokens to every session, 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 2026-09-03.
Other instructions, from other repositories
pixir AGENTS.md
Instructions for Ranvier-Technologies/pixir, covering agents.md - pixir harness, progressive discovery, screaming architecture, beta stance and commands.
pixir CLAUDE.md
Instructions for Ranvier-Technologies/pixir, covering pixir harness - legacy agent guide, current map and commands.
RepoResident AGENTS.md
Instructions for ychamel/RepoResident: Agent entry point: read CLAUDE.md in full — it is the operating manual — then follow its Session protocol. Everything else (state, workflows, project knowledge) is routed from there via the .agent/ directory.
agent-harness-skills AGENTS.md
Instructions for yfge/agent-harness-skills, covering agent harness skills - repository instructions, purpose, rules, validation and commit discipline.
agent-harness-skills GEMINI.md
Instructions for yfge/agent-harness-skills: This extension provides reusable skills for repository harness design.
pi-dsh AGENTS.md
AGENTS.md instructions for abhishekgahlot2/pi-dsh, covering pi-dsh, the contract (read before changing anything), layout, commands and vendoring policy ("maintain both forks").