appsec-advisor CLAUDE.md

appsec-advisor CLAUDE.md is an instructions file for coding agents from appsec-foundry/appsec-advisor. It costs 11 tokens per session, scanned A, original, no licence file.

A set of Claude Code instructions for reviewing application security and designing secure systems. It focuses on threat modeling, which means identifying how software could be attacked and harmed.

In plain words
What is it for?
Threat modeling applications and reviewing their security architecture during development.
Why use it?
It gives Claude Code project-specific guidance for connecting security concerns to the actual code instead of discussing them only in general terms.

Instructions file

Install

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.

agentmods
npx agentmods add instructions/appsec-foundry/appsec-advisor/claude-md
Clone the repo
git clone --depth 1 https://github.com/appsec-foundry/appsec-advisor

Wrote 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.

agentmods badge for appsec-advisor CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/appsec-foundry/appsec-advisor/claude-md.svg)](https://agentmods.dev/instructions/appsec-foundry/appsec-advisor/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/appsec-foundry/appsec-advisor/claude-md"><img src="https://agentmods.dev/badge/instructions/appsec-foundry/appsec-advisor/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 This file is loaded in full into every session.
When invoked 11 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00011 $0.00011
Opus 5 $0.00005 $0.00005
Sonnet 5 $0.00002 $0.00002
Haiku 4.5 $0.00001 $0.00001

Measured 4d ago against content hash 573138e19d33, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

appsec-advisor CLAUDE.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 4d 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.

CLAUDE.md · 4 lines

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.

Read it on GitHub

Changes

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.

  1. 4d ago First seen · 4 lines · 11 tokens per session scan A 573138e19d33

Subscribe to this mod's changes

appsec-advisor CLAUDE.md is an instructions file published in the GitHub repository appsec-foundry/appsec-advisor (16 stars, last pushed today), with no licence file. It adds 11 tokens to every session, about $0.0001 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 2026-08-30.

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