Borrowing it
Nothing to install: this file belongs to wingedsheep/argentum-engine. 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/wingedsheep/argentum-engine/main/AGENTS.mdgit clone --depth 1 https://github.com/wingedsheep/argentum-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/wingedsheep/argentum-engine/agents-md)<a href="https://agentmods.dev/instructions/wingedsheep/argentum-engine/agents-md"><img src="https://agentmods.dev/badge/instructions/wingedsheep/argentum-engine/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/wingedsheep/argentum-engine/agents-md"><img src="https://agentmods.dev/badge/instructions/wingedsheep/argentum-engine/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 | $0.04861 | $0.04861 |
| Opus 5.5 | $0.01944 | $0.01944 |
| Sonnet 5.5 | $0.00972 | $0.00972 |
| Haiku 4.5 | $0.00486 | $0.00486 |
Grade A, and why
argentum-engine AGENTS.md scanned grade A with 1 finding 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 today.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
`curl -o` it and `grep` locally. If you can't verify, describe the rule by name instead of guessing. 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.
- today Changed · +1 lines · +44 tokens per session 85911c2c12ca
- 2d ago Changed · +5 lines · +75 tokens per session 048d427b4c26
- 6d ago Changed · +7 lines · +163 tokens per session fd2bef84786e
- 10d ago Changed · +10 lines · +241 tokens per session 99174724b757
- 15d ago Changed · +46 tokens per session d1257d758e42
- 16d ago Changed · +7 lines · +102 tokens per session 19d8828d4f9c
- 17d ago Changed · +7 lines · +160 tokens per session f13a42ba34c9
- 20d ago Changed · +4 lines · +83 tokens per session ff2248605130
- 21d ago Changed · +5 lines · +130 tokens per session 3e1655cd0c52
- 22d ago First seen · 194 lines · 3,817 tokens per session scan A d398a27a900f
argentum-engine AGENTS.md is an instructions file published in the GitHub repository wingedsheep/argentum-engine (81 stars, last pushed today), with no licence file. It adds 4,861 tokens to every session, about $0.0194 per session on Opus 5.5. A static security scan graded it A with 1 finding (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
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.