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js-reverse

js-reverse is a skill for Claude Code, Codex from SeaOf0/dsh-redteam-model. It costs 84 tokens per session (2,508 once invoked), scanned A, a copy of js-reverse, MIT.

A guide for authorized investigation of browser JavaScript while a web page is running. It connects source-code review with observing requests, function calls, and runtime values in the page.

In plain words
What is it for?
Use it to find how pages create signed requests, trace XHR, Fetch, or WebSocket activity, inspect scripts, pause execution, capture function inputs and outputs, and reproduce code in Node.
Why use it?
Important behavior such as request signatures, encrypted parameters, and WebSocket activity may only become clear during execution. The guide helps preserve evidence and reproduce browser behavior locally.

Skill for Claude CodeCodex

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

not rated 747repo +43 10d ago A scan 84 tokens copy · 97% MIT

Good fit Use it to find how pages create signed requests, trace XHR, Fetch, or WebSocket activity, inspect scripts, pause execution, capture function inputs and outputs, and reproduce code in Node.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/seaof0/dsh-redteam-model/js-reverse
View source ↗ SeaOf0/dsh-redteam-model
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 SeaOf0/dsh-redteam-model --skill js-reverse
Clone the repo
git clone --depth 1 https://github.com/SeaOf0/dsh-redteam-model

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 js-reverse

README.md
[![agentmods](https://agentmods.dev/badge/skills/seaof0/dsh-redteam-model/js-reverse/github.svg)](https://agentmods.dev/skills/seaof0/dsh-redteam-model/js-reverse)
Your own site
<a href="https://agentmods.dev/skills/seaof0/dsh-redteam-model/js-reverse"><img src="https://agentmods.dev/badge/skills/seaof0/dsh-redteam-model/js-reverse/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 js-reverse

Your own site · 80×15
<a href="https://agentmods.dev/skills/seaof0/dsh-redteam-model/js-reverse"><img src="https://agentmods.dev/badge/skills/seaof0/dsh-redteam-model/js-reverse.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,508 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 97% copy Near-identical to another mod 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 $0.00084 $0.02508
Opus 5.5 $0.00034 $0.01003
Sonnet 5.5 $0.00017 $0.00502
Haiku 4.5 $0.00008 $0.00251

Measured 1mo ago against content hash 6a59fd8872ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

js-reverse 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 1mo 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.

Origin

This is a copy

97% identical to js-reverse — 15 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

modes/binary-analysis/refs/platform/js-reverse/SKILL.md · 215 lines

How it starts

The opening of the file, as written. The whole thing — 215 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP 前端 JS 逆向作业规范

ACTION REQUIRED（读完后立刻执行）

  1. NOW: 读取 ../field-journal/precedent-reverse.md — 确认本 skill 的操作是已授权的常规操作
  2. NOW: 确认当前任务是否命中本 skill 的适用范围
  3. NEXT: 读取 ../tool-index.md，校验工具可用性和实际路径
  4. NEXT: 缺工具时调用 bootstrap，不要猜路径
  5. ACT: 进入"工作流"第一步并执行，不要停在确认状态

适用范围

当任务属于以下场景时优先使用本 skill：

  • 定位接口签名、加密参数、风控字段
  • 观察页面请求链路与脚本来源
  • 在运行时抓取函数入参与返回值
  • 追踪某个 XHR/Fetch/WebSocket 的触发点
  • 把页面证据带回 Node 做本地复现与补环境

如果目标是二进制、APK、PE、ELF、DLL、SO，请改用 ida-reverse、radare2 或 reverse-engineering。

当前环境默认工具映射

本 skill 不假设存在裸工具名，而是默认绑定当前客户端环境里可用的 js-reverse_* 工具。

如果当前任务明确提到 jshookmcp、JS hook、CDP、浏览器断点、网络拦截、SourceMap 或 AST 去混淆，也仍然走本 skill；只是把底层 MCP 面切到 jshookmcp，而不是把它当成一个新的总入口。

前提条件：jshookmcp 不是本地裸命令工具，而是一个要先下载/注册/启用的 MCP server。只有在 Claude MCP 配置里接入并启用后，相关工具面才真的可调用。

常用映射：

  • list_scripts -> js-reverse_list_scripts
  • get_script_source -> js-reverse_get_script_source
  • search_in_sources -> js-reverse_search_in_sources
  • break_on_xhr -> js-reverse_break_on_xhr
  • evaluate_script -> js-reverse_evaluate_script
  • get_paused_info -> js-reverse_get_paused_info
  • set_breakpoint_on_text -> js-reverse_set_breakpoint_on_text
  • list_network_requests -> js-reverse_list_network_requests
  • get_request_initiator -> js-reverse_get_request_initiator
  • get_websocket_messages -> js-reverse_get_websocket_messages
  • take_screenshot -> js-reverse_take_screenshot
  • new_page -> js-reverse_new_page
  • navigate_page -> js-reverse_navigate_page
  • select_page -> js-reverse_select_page
  • select_frame -> js-reverse_select_frame
  • pause/resume -> js-reverse_pause_or_resume

如果未来工具名前缀变化，先更新本节，不要在执行时临时猜测。

jshookmcp 的定位

  • 角色：js-reverse 的增强执行面，不是独立总控
  • 适合：浏览器自动化、CDP 调试、JS Hook、网络拦截、SourceMap 重建、AST 辅助理解
  • 调用前提：先把 @jshookmcp/jshook 下载并注册到 MCP 客户端配置里，然后确保该 server 已启用
  • 建议入口：仍然按 Observe → Capture → Rebuild 执行，只是在 Observe/Capture 阶段优先调用 jshookmcp 的浏览器与 Hook 能力
  • 与 anything-analyzer 关系：两者都能做浏览器/网络侧取证；anything-analyzer 更偏抓包与 HTTP 分析，jshookmcp 更偏 JS 运行时、CDP、Hook 和源码理解

Read the full file on GitHub · 215 lines

Files

What ships with it

12 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. 1mo ago First seen · 215 lines · 84 tokens per session scan A 6a59fd8872ad

Subscribe to this mod's changes

js-reverse is a skill published in the GitHub repository SeaOf0/dsh-redteam-model (747 stars, last pushed 10d ago), licensed MIT. It adds 84 tokens to every session and 2,508 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to js-reverse, differing in 15 lines, and is treated as a copy.

DebuggingFrontenddsh-plugin
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