mega-security

An automated security-testing agent for examining source code, dependencies, secrets, business rules, and running web applications. It checks for issues such as cross-site scripting, SQL injection, request forgery, and access-control bypasses, and creates proof-of-concept exploits.

In plain words
What is it for?
Use it for white-box security reviews, dependency and secret checks, business-logic testing, and dynamic penetration tests.
Why use it?
It brings static code checks and live attack testing together to find security weaknesses and show how they can be used.

Agent

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 agents/ibragimov-oasis/vibe-coder/mega-security
Clone the repo
git clone --depth 1 https://github.com/ibragimov-oasis/vibe-coder
Per session 79 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,791 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 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 $0.00079 $0.03791
Opus 5 $0.00039 $0.01895
Sonnet 5 $0.00016 $0.00758
Haiku 4.5 $0.00008 $0.00379

Measured yesterday against content hash 36025b811adf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

mega-security scanned grade B with 2 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 yesterday.

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.

Cloud metadata endpointmediumServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

- http://169.254.169.254/latest/meta-data/ (AWS metadata)

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

{exact payload, curl command, or step-by-step that proves the vulnerability}
vc-kit/configs/vc-claude/agents/mega-security.md · 456 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. yesterday First seen · 456 lines · 79 tokens per session scan B 36025b811adf

Subscribe to this mod's changes

mega-security is an agent published in the GitHub repository ibragimov-oasis/vibe-coder (2 stars, last pushed 2mo ago), with no licence file. It adds 79 tokens to every session and 3,791 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 2 findings (cloud metadata endpoint, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.