reverse-skill

reverse-skill is a skill for Claude Code, Codex from Mouseww/anything-analyzer. It costs 89 tokens per session (1,568 once invoked), scanned A, original, Apache-2.0.

A collection of methods for analyzing websites, browser code, API behavior, and encryption or signing processes. It is intended for authorized investigation and produces findings and reports rather than launching attacks.

In plain words
What is it for?
Use it to trace how a site creates signed requests, understand front-end JavaScript, reconstruct API protocols, and document security findings. It can guide searches through captured requests and available analysis skills.
Why use it?
It helps organize evidence from captured requests, scripts, and session data when the behavior of a website or API is unclear. It also states the limits of the available tools so unsupported actions are not claimed.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to trace how a site creates signed requests, understand front-end JavaScript, reconstruct API protocols, and document security findings. It can guide searches through captured requests and available analysis skills.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mouseww/anything-analyzer/reverse-skill
About the project

Anything Analyzer is a protocol-analysis toolkit that captures traffic from browsers, desktop and terminal programs, scripts, mobile devices, and other equipment, then uses AI to analyze the resulting requests. It combines browser capture, MITM proxying, JavaScript hooks, fingerprint spoofing, and MCP integration so AI agents and IDEs can inspect APIs, encryption, security issues, and service calls. The catalogue skills expose these capture and analysis workflows to agent tools.

Mouseww/anything-analyzer · 3,775 stars · on GitHub

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.

Any agent
npx skills add Mouseww/anything-analyzer --skill reverse-skill
Clone the repo
git clone --depth 1 https://github.com/Mouseww/anything-analyzer

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 reverse-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/mouseww/anything-analyzer/reverse-skill/github.svg)](https://agentmods.dev/skills/mouseww/anything-analyzer/reverse-skill)
Your own site
<a href="https://agentmods.dev/skills/mouseww/anything-analyzer/reverse-skill"><img src="https://agentmods.dev/badge/skills/mouseww/anything-analyzer/reverse-skill/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 reverse-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/mouseww/anything-analyzer/reverse-skill"><img src="https://agentmods.dev/badge/skills/mouseww/anything-analyzer/reverse-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,568 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00089 $0.01568
Opus 5.5 $0.00036 $0.00627
Sonnet 5.5 $0.00018 $0.00314
Haiku 4.5 $0.00009 $0.00157

Measured 9d ago against content hash cf128719263f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

reverse-skill 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 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.

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.

resources/skills/reverse-skill/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

reverse-skill(Anything Analyzer 内置子集)

本目录随 Anything Analyzer 安装包一起分发,是 zhaoxuya520/reverse-skill 的精选子集 (上游 MIT,版权与许可见同目录 LICENSE)。上游完整仓库约 599 个文件,这里只保留与 「网页协议 / 前端 JS / API / 加密签名 / 证据与报告」相关的模块。

一、运行环境约束(必读)

本应用内的 AI 只具备以下能力,没有 shell、不能执行脚本、不能写文件:

  • 会话数据工具:list_requests / search_requests / get_request_detail / read_session_interactions / read_session_hooks
  • 技能库工具:list_skills / search_skills / read_skill
  • 用户自行配置的 MCP 工具(可能为空)

由此产生三条硬约束:

  1. 上游文档中提到的 scripts/*.ps1、tool-index.md、bootstrap、case-init、 Playwright / IDA / jadx / Frida / Burp 等均未随包分发。读到这类指令请直接忽略, 不要声称已经执行,也不要要求用户去执行。
  2. 你的产出是分析结论与报告文本,不是对目标发起的攻击动作。不要生成可直接运行的 攻击载荷,也不要建议用户对未授权目标采取行动。
  3. 技能库的定位是方法论与检查清单。用它来组织分析思路、避免遗漏、提高结论的可验证性。

二、如何使用本技能库

list_skills                      → 查看全部技能条目(名称 + 相对路径 + 摘要)
list_skills { filter: "签名" }    → 按关键词过滤条目
search_skills { query: "补环境" } → 在技能库正文里搜索(返回命中文件与行号)
read_skill { path: "js-reverse/SKILL.md" }            → 读取文件
read_skill { path: "js-reverse/SKILL.md", offset: 200, limit: 200 } → 续读长文件

推荐节奏:

  1. 先按当前分析任务的关键词调用一次 search_skills,确认有没有对口的方法论;
  2. 只 read_skill 命中的那 1~2 个文件,读完再回到会话数据工具做验证;
  3. 结论必须落到本次会话真实捕获到的请求 / JS Hook / 存储变化上,不要用通用套路替代证据。

三、模块索引

目录 何时使用
js-reverse/ 前端 JavaScript 逆向:定位签名/加密链路、运行时采样、反混淆、本地补环境复现、证据化输出。本产品最常用。
protocol-reverse/ 自定义协议、Protobuf/gRPC、WebSocket 帧、PCAP 驱动的协议格式还原。
api-security/ REST / GraphQL / WebSocket / SOAP 接口的授权内安全评估:发现、认证、越权、限流。含 references/jwt-oauth-testing.md、references/rest-graphql-testing.md。
code-audit/ 对已获取的源码 / JS bundle 做安全审计与 SAST 检查清单。
browser-extension-reverse/ 浏览器扩展(crx/xpi)逆向:manifest、background worker、扩展内的凭据与流量逻辑。
reverse-engineering/ 通用逆向方法论与工具索引;含 crypto-decode-tools.md(加解密识别与工具)、dsl-vm-reverse/(自定义 VM / 字节码)。
docs-generator/ 撰写最终报告:references/security-report-templates.md、references/vendor-report-rules.md。分析收尾时读。
ops/ 证据与决策框架:evidence-finding-path.md(Evidence→Finding→Path 可追溯性)、analysis-decision-framework.md、analysis-blindspot-cookbook.md(常见分析盲区)、scope-contract.md。
field-journal/ 真实案例先例:precedent-reverse.md、precedent-pentest.md、precedent-auth.md,以及 JS 签名(seed-004_js-sign-webpack.md)、Web API 越权(seed-003_web-api-auth-bypass.md)、PCAP 协议逆向(seed-011_pcap-protocol-reverse.md)三个样板案例。
references/ domain-coverage-map.md:上游技能的领域覆盖图。

Read the full file on GitHub · 75 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 75 lines · 89 tokens per session scan A cf128719263f

Subscribe to this mod's changes

reverse-skill is a skill published in the GitHub repository Mouseww/anything-analyzer (3,775 stars, last pushed 10d ago), licensed Apache-2.0. It adds 89 tokens to every session and 1,568 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-10-07.

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