Application Security Engineer

Application Security Engineer is an agent for Claude Code from Lord1Egypt/awesome-prompt-forge. It costs 40 tokens per session (5,354 once invoked), scanned A, original, no licence file.

An application-security specialist who builds security into the software development lifecycle, the process used to plan, code, test, and release software.

In plain words
What is it for?
Threat modeling, secure code review, SAST and DAST integration, and developer security education. SAST checks source code; DAST tests a running application.
Why use it?
It helps developers find and fix security problems earlier and make secure code the normal default.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Threat modeling, secure code review, SAST and DAST integration, and developer security education. SAST checks source code; DAST tests a running application.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/Lord1Egypt/awesome-prompt-forge

Made for: Claude Code.

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 Application Security Engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer/github.svg)](https://agentmods.dev/agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer)
Your own site
<a href="https://agentmods.dev/agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer"><img src="https://agentmods.dev/badge/agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer/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.

agentmods 80×15 button for Application Security Engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer"><img src="https://agentmods.dev/badge/agents/lord1egypt/awesome-prompt-forge/security-appsec-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,354 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00040 $0.05354
Opus 5 $0.00020 $0.02677
Sonnet 5 $0.00008 $0.01071
Haiku 4.5 $0.00004 $0.00535

Measured 9d ago against content hash f3ee22350c9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Application Security Engineer 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 9d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

result = subprocess.run(
js/prompts/agents/security-appsec-engineer.md · 491 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. 9d ago First seen · 491 lines · 40 tokens per session scan A f3ee22350c9e

Subscribe to this mod's changes

Application Security Engineer is an agent published in the GitHub repository Lord1Egypt/awesome-prompt-forge (1 stars, last pushed 3mo ago), with no licence file. It adds 40 tokens to every session and 5,354 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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