browser-exploitation

browser-exploitation is a skill for Claude Code, Codex from 0dayInc/pwn. It costs 14 tokens per session (76 once invoked), scanned A, original, MIT.

A browser security testing workflow that uses a proxy to replay and modify web requests, compare recorded browser traffic, and send native crashes to debugging tools.

In plain words
What is it for?
Use it to test browser request handling, compare HAR traffic records, and investigate native browser crashes.
Why use it?
It helps investigate how browsers handle altered requests and examine crashes without manually switching between traffic and debugging tools.

Skill for Claude CodeCodex

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

Good fit Use it to test browser request handling, compare HAR traffic records, and investigate native browser crashes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0dayinc/pwn/browser-exploitation
View source ↗ 0dayInc/pwn
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 0dayInc/pwn --skill browser-exploitation
Clone the repo
git clone --depth 1 https://github.com/0dayInc/pwn

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 browser-exploitation

README.md
[![agentmods](https://agentmods.dev/badge/skills/0dayinc/pwn/browser-exploitation/github.svg)](https://agentmods.dev/skills/0dayinc/pwn/browser-exploitation)
Your own site
<a href="https://agentmods.dev/skills/0dayinc/pwn/browser-exploitation"><img src="https://agentmods.dev/badge/skills/0dayinc/pwn/browser-exploitation/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 browser-exploitation

Your own site · 80×15
<a href="https://agentmods.dev/skills/0dayinc/pwn/browser-exploitation"><img src="https://agentmods.dev/badge/skills/0dayinc/pwn/browser-exploitation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 76 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 $0.00014 $0.00076
Opus 5.5 $0.00006 $0.00030
Sonnet 5.5 $0.00003 $0.00015
Haiku 4.5 $0.00001 $0.00008

Measured 1mo ago against content hash b6d80a2e2541, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

browser-exploitation 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.

etc/default_skills/browser-exploitation/SKILL.md · 11 lines

What it actually says

Browser exploitation

  1. PWN::Plugins::MitmProxy.start and TransparentBrowser proxy:.
  2. replay mutated requests; diff HAR entries.
  3. Native crashes go through PWN::Plugins::Debugger and REDB.
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 · 11 lines · 14 tokens per session scan A b6d80a2e2541

Subscribe to this mod's changes

browser-exploitation is a skill published in the GitHub repository 0dayInc/pwn (86 stars, last pushed 2d ago), licensed MIT. It adds 14 tokens to every session and 76 once invoked, about $0.0001 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 2026-09-16.

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