Reverse Skill is a routing package for AI coding agents that selects appropriate reverse-engineering, penetration-testing, and security-research methods and tools for a given target. It is used for tasks involving APKs, binaries, frontend JavaScript, packet captures, CTF challenges, and authorized penetration testing. Its catalogue add-ons provide the skills and instructions that guide these workflows.
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.
npx skills add zhaoxuya520/reverse-skill --skill competition-request-normalization-smugglinggit clone --depth 1 https://github.com/zhaoxuya520/reverse-skillWrote 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.
[](https://agentmods.dev/skills/zhaoxuya520/reverse-skill/competition-request-normalization-smuggling)<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/competition-request-normalization-smuggling"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/competition-request-normalization-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.
<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/competition-request-normalization-smuggling"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/competition-request-normalization-smuggling.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00109 | $0.00556 |
| Opus 5 | $0.00055 | $0.00278 |
| Sonnet 5 | $0.00022 | $0.00111 |
| Haiku 4.5 | $0.00011 | $0.00056 |
Grade A, and why
competition-request-normalization-smuggling 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.
Copies of this mod
4 near-identical copies found in the catalogue:
- competition-request-normalization-smuggling — 100% identical, 0 lines differ
- competition-request-normalization-smuggling — 100% identical, 0 lines differ
- competition-request-normalization-smuggling — 100% identical, 0 lines differ
- competition-request-normalization-smuggling — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Competition Request Normalization Smuggling
Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.
Use this skill when request interpretation changes between proxy, middleware, and backend parser layers.
Reply in Simplified Chinese unless the user explicitly requests English.
Quick Start
- Map every parsing hop: client-facing proxy, gateway, app server, and downstream service.
- Record path normalization, header canonicalization, transfer framing, and host derivation at each hop.
- Capture one accepted baseline request and one differential request with minimal delta.
- Prove which hop interprets the request differently.
- Reproduce one minimal differential path that yields decisive behavior.
Workflow
1. Map Parse And Routing Boundaries
- Record
Host, forwarded headers, path decoding, slash collapsing, dot-segment handling, and case behavior. - Note
Content-Length,Transfer-Encoding, chunk framing, and connection reuse behavior when relevant. - Keep edge parser and backend parser decisions side by side.
2. Prove Differential Interpretation
- Build paired requests that differ in one canonicalization dimension only.
- Capture proxy logs, backend logs, route match, and downstream request shape.
- Show where route, auth scope, or body boundary diverges.
3. Reduce To Decisive Smuggling Chain
- Compress to: crafted request -> parser differential across hops -> unintended routed request or hidden endpoint reach -> resulting effect.
- State whether root cause is path normalization drift, header ambiguity, transfer framing differential, or host-derivation confusion.
- If the chain becomes primarily runtime routing without framing tricks, hand off to runtime routing skill.
Read This Reference
- Load
references/request-normalization-smuggling.mdfor parse-differential checklist and evidence packaging.
What ships with it
2 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.
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.
- 9d ago First seen · 51 lines · 109 tokens per session scan A 9b9dd18133e2
competition-request-normalization-smuggling is a skill published in the GitHub repository zhaoxuya520/reverse-skill (35,183 stars, last pushed 6d ago), licensed MIT. It adds 109 tokens to every session and 556 once invoked, about $0.0005 per session on Opus 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 2026-08-30.
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