dex-integration-security

dex-integration-security is a skill for Claude Code, Codex from PlamenTSV/plamen. It costs 50 tokens per session (1,820 once invoked), scanned A, original, MIT.

A security review of code that calls a decentralised exchange, or DEX. A DEX is a blockchain application for swapping tokens and providing or removing liquidity.

In plain words
What is it for?
Use it when a contract swaps tokens, adds or removes liquidity, sets minimum output amounts, or handles slippage.
Why use it?
It helps identify unsafe external exchange calls, missing return-value checks, bad fee assumptions, and weak protection against unwanted price changes.

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/plamentsv/plamen/dex-integration-security
Any agent
npx skills add PlamenTSV/plamen --skill dex-integration-security
Clone the repo
git clone --depth 1 https://github.com/PlamenTSV/plamen

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 dex-integration-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/plamentsv/plamen/dex-integration-security.svg)](https://agentmods.dev/skills/plamentsv/plamen/dex-integration-security)
Your own site
<a href="https://agentmods.dev/skills/plamentsv/plamen/dex-integration-security"><img src="https://agentmods.dev/badge/skills/plamentsv/plamen/dex-integration-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,820 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00050 $0.01820
Opus 5 $0.00025 $0.00910
Sonnet 5 $0.00010 $0.00364
Haiku 4.5 $0.00005 $0.00182

Measured 5d ago against content hash cb3251b6c7fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dex-integration-security 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 5d 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.

agents/skills/injectable/dex-integration-security/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Injectable Skill: DEX Integration Security

Protocol Type Trigger: dex_integration (detected when recon finds: swap|addLiquidity|removeLiquidity|IUniswapV2Router|ISwapRouter|amountOutMin|amountOutMinimum|slippage - AND the protocol is NOT itself a DEX implementation) Inject Into: Breadth agents, depth-external, depth-edge-case Language: Primarily EVM; applicable to Sui PTB-based DEX interactions and Soroban DEX integrations (SoroSwap, Phoenix Protocol) Finding prefix: [DEX-N]

Orchestrator Decomposition Guide

When decomposing this skill into depth agent investigation questions, map sections to domains:

  • Sections 1, 2: depth-external (external DEX call safety, return value handling)
  • Sections 3, 4: depth-edge-case (boundary conditions, fee tier assumptions)
  • Section 5: depth-state-trace (approval state management)

When This Skill Activates

Recon detects DEX integration patterns: swap, addLiquidity, removeLiquidity, IUniswapV2Router, ISwapRouter, amountOutMin, amountOutMinimum, slippage, exactInputSingle, exactInput, swapExactTokensForTokens - but the protocol itself is NOT a DEX/AMM implementation. This skill analyzes the CALLER's integration with an external DEX, not the DEX internals.


1. Slippage Parameter Analysis

For each function that calls a DEX swap:

1a. Parameter Origin

  • Is amountOutMin (or equivalent) user-provided or computed on-chain?
  • If computed: what oracle or price source feeds the computation? (cross-reference ORACLE_ANALYSIS if applicable)
  • Can the parameter be set to 0? If yes: trace all callers - does ANY code path pass 0 as slippage tolerance?

1b. Parameter Forwarding

  • Is the slippage parameter forwarded through intermediate functions? At each hop: is it modified, scaled, or silently dropped?
  • For protocols that apply their own fee before swapping: is amountOutMin adjusted to account for the fee deduction from the input amount?

1c. Multi-Hop and Multi-Swap

  • For multi-hop swaps (encoded path): is slippage checked on intermediate amounts or only the final output?
  • For operations requiring multiple sequential swaps: is slippage enforced per-swap or only on aggregate output?

Read the full file on GitHub · 140 lines

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. 5d ago First seen · 140 lines · 50 tokens per session scan A cb3251b6c7fe

Subscribe to this mod's changes

dex-integration-security is a skill published in the GitHub repository PlamenTSV/plamen (281 stars, last pushed 1mo ago), licensed MIT. It adds 50 tokens to every session and 1,820 once invoked, about $0.0003 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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