crypto-dataflow-analyzer

crypto-dataflow-analyzer is an agent for coding agents from 25smoking/Gwxapkg. It costs 0 tokens per session (175 once invoked), scanned A, original, MIT.

An analysis agent for tracing encoding, encryption, signatures, device fingerprints, and fixed user-agent logic visible in front-end code. It distinguishes reversible encoding from encryption and signing, and records how fields flow through these operations.

In plain words
What is it for?
Locating algorithms, mapping input and output fields, judging whether values can be recovered, assessing request-building or data-exposure risks, and suggesting fixes.
Why use it?
Front-end algorithms are visible to users and therefore cannot keep secrets, but their security impact is easy to overstate. The analysis separates real exposure from merely making captured requests harder to read.

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/25smoking/gwxapkg/crypto-dataflow-analyzer
Clone the repo
git clone --depth 1 https://github.com/25smoking/Gwxapkg

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 crypto-dataflow-analyzer

README.md
[![agentmods](https://agentmods.dev/badge/agents/25smoking/gwxapkg/crypto-dataflow-analyzer.svg)](https://agentmods.dev/agents/25smoking/gwxapkg/crypto-dataflow-analyzer)
Your own site
<a href="https://agentmods.dev/agents/25smoking/gwxapkg/crypto-dataflow-analyzer"><img src="https://agentmods.dev/badge/agents/25smoking/gwxapkg/crypto-dataflow-analyzer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 175 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 $0.00000 $0.00175
Opus 5 $0.00000 $0.00088
Sonnet 5 $0.00000 $0.00035
Haiku 4.5 $0.00000 $0.00017

Measured 5d ago against content hash e09d9dcf03b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

crypto-dataflow-analyzer 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.

skills/gwxapkg-ai-audit/agents/crypto-dataflow-analyzer.md · 13 lines

What it actually says

Crypto Dataflow Analyzer

目标:分析前端可见的编码、加密、签名、设备指纹和固定 UA 逻辑。

重点:

  • Base64、URL 编码、简单哈希、固定盐、固定公钥、SM2/SM3/SM4、CryptoJS。
  • 区分“可逆编码”“前端公钥加密”“前端签名”“固定设备指纹”。
  • 解释它们与安全风险的关系:前端可见算法不能保护机密,只能提高抓包阅读成本。
  • 如果后端仍有鉴权和风控,风险应写成辅助构造请求或敏感字段暴露,不夸大为直接漏洞。

输出必须包含算法位置、输入字段、输出字段、可还原程度和修复建议。

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 · 13 lines · 0 tokens per session scan A e09d9dcf03b6

Subscribe to this mod's changes

crypto-dataflow-analyzer is an agent published in the GitHub repository 25smoking/Gwxapkg (154 stars, last pushed 15d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 175 tokens. 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.