defi-attack-patterns

defi-attack-patterns is a skill for Claude Code, Codex from Prohao42/aimy-skill. It costs 46 tokens per session (3,343 once invoked), scanned A, original, no licence file.

A decentralized-finance security guide covering common attack patterns in blockchain lending, trading, governance, bridges, and token systems.

In plain words
What is it for?
It is for analysing flash-loan attacks, oracle manipulation, MEV sandwich attacks, governance exploits, bridge vulnerabilities, and token-standard edge cases.
Why use it?
It helps identify weaknesses that can let attackers manipulate prices, transactions, votes, cross-chain transfers, or token behavior.

Skill for Claude CodeCodex

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 skills/prohao42/aimy-skill/defi-attack-patterns
Any agent
npx skills add Prohao42/aimy-skill --skill defi-attack-patterns
Clone the repo
git clone --depth 1 https://github.com/Prohao42/aimy-skill

Made for: Claude Code, Codex.

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 defi-attack-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/prohao42/aimy-skill/defi-attack-patterns.svg)](https://agentmods.dev/skills/prohao42/aimy-skill/defi-attack-patterns)
Your own site
<a href="https://agentmods.dev/skills/prohao42/aimy-skill/defi-attack-patterns"><img src="https://agentmods.dev/badge/skills/prohao42/aimy-skill/defi-attack-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,343 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00046 $0.03343
Opus 5 $0.00023 $0.01672
Sonnet 5 $0.00009 $0.00669
Haiku 4.5 $0.00005 $0.00334

Measured 4d ago against content hash 8b80984dea98, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

defi-attack-patterns 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.

ai-mian/hack-skills/skills/defi-attack-patterns/SKILL.md · 356 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 · 356 lines · 46 tokens per session scan A 8b80984dea98

Subscribe to this mod's changes

defi-attack-patterns is a skill published in the GitHub repository Prohao42/aimy-skill (135 stars, last pushed 10d ago), with no licence file. It adds 46 tokens to every session and 3,343 once invoked, about $0.0002 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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