hunt-request-smuggling

hunt-request-smuggling is a skill for Claude Code from galact-byte/galact-Skills. It costs 209 tokens per session (1,626 once invoked), scanned A, original, no licence file.

A security-testing guide for HTTP request smuggling, an attack caused by proxy and server disagreeing about where an HTTP request ends.

In plain words
What is it for?
Use it during authorised testing of websites or APIs to examine Content-Length and Transfer-Encoding handling, malformed headers, chunked trailers, socket poisoning, cache poisoning, and access-control bypasses.
Why use it?
It helps investigate whether layered systems such as CDNs, reverse proxies, and load balancers parse requests inconsistently.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it during authorised testing of websites or APIs to examine Content-Length and Transfer-Encoding handling, malformed headers, chunked trailers, socket poisoning, cache poisoning, and access-control bypasses.

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Install with agentmods
npx agentmods add skills/galact-byte/galact-skills/hunt-request-smuggling
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 galact-byte/galact-Skills --skill hunt-request-smuggling
Clone the repo
git clone --depth 1 https://github.com/galact-byte/galact-Skills

Made for: Claude Code.

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 hunt-request-smuggling

README.md
[![agentmods](https://agentmods.dev/badge/skills/galact-byte/galact-skills/hunt-request-smuggling/github.svg)](https://agentmods.dev/skills/galact-byte/galact-skills/hunt-request-smuggling)
Your own site
<a href="https://agentmods.dev/skills/galact-byte/galact-skills/hunt-request-smuggling"><img src="https://agentmods.dev/badge/skills/galact-byte/galact-skills/hunt-request-smuggling/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 hunt-request-smuggling

Your own site · 80×15
<a href="https://agentmods.dev/skills/galact-byte/galact-skills/hunt-request-smuggling"><img src="https://agentmods.dev/badge/skills/galact-byte/galact-skills/hunt-request-smuggling.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 209 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,626 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00209 $0.01626
Opus 5 $0.00105 $0.00813
Sonnet 5 $0.00042 $0.00325
Haiku 4.5 $0.00021 $0.00163

Measured 12d ago against content hash 7f16e119f5f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

hunt-request-smuggling scanned grade A with 1 finding 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 12d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (tools/common.py, tools/hunt_smuggling.py, tools/recon.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

走私会影响**其他用户的请求**,破坏性和法律风险都高。默认只做**自打自(self-smuggling)时序探测**确认 desync,不在生产上毒化真实用户 socket,除非 scope 明确授权。关键探测走 `tools/` 脚本(raw socket,curl 发不了畸形头)。绕过变体与真实报告见 `reference.md`。
skills/hunt-request-smuggling/SKILL.md · 84 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

6 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. 12d ago First seen · 84 lines · 209 tokens per session scan A 7f16e119f5f4

Subscribe to this mod's changes

hunt-request-smuggling is a skill published in the GitHub repository galact-byte/galact-Skills (6 stars, last pushed 3d ago), with no licence file. It adds 209 tokens to every session and 1,626 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories