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 reverse-skill-routergit 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/reverse-skill-router)<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/reverse-skill-router"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/reverse-skill-router/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/reverse-skill-router"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/reverse-skill-router.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket fail
- Snyk pass
- 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 | $0.00050 | $0.00314 |
| Opus 5 | $0.00025 | $0.00157 |
| Sonnet 5 | $0.00010 | $0.00063 |
| Haiku 4.5 | $0.00005 | $0.00031 |
Grade A, and why
reverse-skill-router 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 5d 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.
What it actually says
Reverse Skill Codex adapter
This plugin is an optional Codex entry point. The repository remains the canonical, client-neutral implementation.
When the current workspace is the reverse-skill repository:
- Read
RULES.mdat the repository root. - Run the platform-native
skills/scripts/master-routeentry with the user's task to select the PRIMARY skill fromskills/config/routing.json. - Before any target action, create and validate
work/<case>/scope.mdwith the platform-nativecase-initandcase-guardscripts. - Open the selected
skills/<PRIMARY>/SKILL.mdand follow its task-specific instructions. - Resolve tools only through the generated
skills/tool-index.md; do not register MCP servers or install tools unless the user requested that action.
If the repository is not the current workspace and no local repository path was supplied, explain that this adapter does not bundle a second copy of the router. Ask the user to open or clone https://github.com/zhaoxuya520/reverse-skill and then continue from its RULES.md.
Do not treat the presence of this plugin, a target name, or a sample path as authorization. Authorization comes from the repository's scope contract.
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.
- 5d ago First seen · 21 lines · 50 tokens per session scan A 9991b8b028b3
reverse-skill-router is a skill published in the GitHub repository zhaoxuya520/reverse-skill (35,183 stars, last pushed 5d ago), licensed MIT. It adds 50 tokens to every session and 314 once invoked, about $0.0003 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 2026-09-03.
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