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 AeonDave/malskill --skill mcpwngit clone --depth 1 https://github.com/AeonDave/malskillWrote 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/aeondave/malskill/mcpwn)<a href="https://agentmods.dev/skills/aeondave/malskill/mcpwn"><img src="https://agentmods.dev/badge/skills/aeondave/malskill/mcpwn/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/aeondave/malskill/mcpwn"><img src="https://agentmods.dev/badge/skills/aeondave/malskill/mcpwn.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.04126 |
| Opus 5 | $0.00055 | $0.02063 |
| Sonnet 5 | $0.00022 | $0.00825 |
| Haiku 4.5 | $0.00011 | $0.00413 |
Grade C, and why
mcpwn scanned grade C with 3 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
| A file that ALREADY EXISTS on disk (any size, binary or text) | `request_upload` → `curl -X PUT --data-binary @f` the raw bytes to the `:5001` URL **from your own local shell** → `import_artifact_to_workspace` (only *a Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
MCPwn is a Linux-container-backed MCP server (Kali or Debian base — the MCP/catalog contract is the same, while installed runtime tools differ and genuinely heavy tools remain Kali-only): a non-root runtime user with `su Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| Expected well below 20s, no stdin (`whoami`, `cat`, `id`, quick `curl`) | `execute_command(cmd)` | The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
4 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.
- 5d ago First seen · 120 lines · 109 tokens per session scan C 4ce2f6d26001
mcpwn is a skill published in the GitHub repository AeonDave/malskill (18 stars, last pushed today), with no licence file. It adds 109 tokens to every session and 4,126 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 3 findings (sends data to an external url, asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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