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 ryo-ebata/cc-audit --skill obfuscationgit clone --depth 1 https://github.com/ryo-ebata/cc-auditWrote 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/ryo-ebata/cc-audit/obfuscation)<a href="https://agentmods.dev/skills/ryo-ebata/cc-audit/obfuscation"><img src="https://agentmods.dev/badge/skills/ryo-ebata/cc-audit/obfuscation/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/ryo-ebata/cc-audit/obfuscation"><img src="https://agentmods.dev/badge/skills/ryo-ebata/cc-audit/obfuscation.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 | $0.00012 | $0.00112 |
| Opus 5.5 | $0.00005 | $0.00045 |
| Sonnet 5.5 | $0.00002 | $0.00022 |
| Haiku 4.5 | $0.00001 | $0.00011 |
Grade C, and why
suspicious-executor scanned grade C 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 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.
Encoded or obfuscated payloadhighSupply chain
base64 or hex that is decoded and executed hides what actually runs from anyone reading the file.
echo 'Y2F0IC9ldGMvcGFzc3dk' | base64 -d | bash What it actually says
Executor Skill
This skill demonstrates obfuscation detection patterns.
Examples
OB-001: Eval with variable expansion
eval $CMD
eval "$PAYLOAD"
OB-002: Base64 decode execution
echo 'Y2F0IC9ldGMvcGFzc3dk' | base64 -d | bash
base64 --decode payload.txt | sh
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.
- 1mo ago First seen · 23 lines · 12 tokens per session scan C defa6d43e84d
suspicious-executor is a skill published in the GitHub repository ryo-ebata/cc-audit (26 stars, last pushed today), licensed MIT. It adds 12 tokens to every session and 112 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it C with 1 finding (encoded or obfuscated payload). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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