Borrowing it
Nothing to install: this file belongs to appsec-foundry/appsec-advisor. 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/appsec-foundry/appsec-advisor/dev/AGENTS.mdgit clone --depth 1 https://github.com/appsec-foundry/appsec-advisorWrote 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/appsec-foundry/appsec-advisor/agents-md)<a href="https://agentmods.dev/instructions/appsec-foundry/appsec-advisor/agents-md"><img src="https://agentmods.dev/badge/instructions/appsec-foundry/appsec-advisor/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/appsec-foundry/appsec-advisor/agents-md"><img src="https://agentmods.dev/badge/instructions/appsec-foundry/appsec-advisor/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 | $0.03299 | $0.03299 |
| Opus 5.5 | $0.01320 | $0.01320 |
| Sonnet 5.5 | $0.00660 | $0.00660 |
| Haiku 4.5 | $0.00330 | $0.00330 |
Grade A, and why
appsec-advisor 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 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.
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
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 · +9 lines · +453 tokens per session 6fe238461c7d
- yesterday Changed · +3 tokens per session f99934f265d6
- 2d ago Changed · -11 lines · +73 tokens per session 88d8aa14e3db
- 5d ago Changed · -3 tokens per session 73759c0526d2
- 8d ago Changed · +5 lines · +246 tokens per session 7ce4dd9f2c3f
- 9d ago Changed · -3 lines · -368 tokens per session 574f81c27874
- 14d ago Changed · +2 lines · +149 tokens per session 237115d7bf70
- 15d ago Changed · +1 lines · +75 tokens per session f1adab98e973
- 16d ago Changed · +14 tokens per session b88539e8dd7a
- 21d ago First seen · 130 lines · 2,657 tokens per session scan A 07b43918d0bc
appsec-advisor AGENTS.md is an instructions file published in the GitHub repository appsec-foundry/appsec-advisor (17 stars, last pushed yesterday), with no licence file. It adds 3,299 tokens to every session, about $0.0132 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 2026-08-30.
Other instructions, from other repositories
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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.
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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).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.