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 Gabson0x/bountyforge --skill security-arsenalgit clone --depth 1 https://github.com/Gabson0x/bountyforgeWrote 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/gabson0x/bountyforge/security-arsenal)<a href="https://agentmods.dev/skills/gabson0x/bountyforge/security-arsenal"><img src="https://agentmods.dev/badge/skills/gabson0x/bountyforge/security-arsenal/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/gabson0x/bountyforge/security-arsenal"><img src="https://agentmods.dev/badge/skills/gabson0x/bountyforge/security-arsenal.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 | $0.00126 | $0.09724 |
| Opus 5.5 | $0.00050 | $0.03890 |
| Sonnet 5.5 | $0.00025 | $0.01945 |
| Haiku 4.5 | $0.00013 | $0.00972 |
Grade E, and why
security-arsenal scanned grade E with 7 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 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- SYSTEM keyword blocked? Try PUBLIC --> Sends data to an external URLlowData 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.
r = requests.post("https://target.com/api/mfa", json={"otp": totp_value}) Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Harvests environment variablesmediumData exfiltration
Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.
# Extract credentials from logs Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Asks for rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
"sudo cat /etc/passwd".execute().text Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Cloud metadata endpointmediumServer-side request forgery
One request to 169.254.169.254 can return temporary IAM credentials.
http://169.254.169.254/latest/meta-data/ Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
DOMAIN=$(curl -s https://api.mail.tm/domains | jq -r '.[0].domain') Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
return (os.system, ('id',)) 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 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 Changed · +2 lines 800cfae7fc56
- 1mo ago First seen · 1,272 lines · 126 tokens per session scan E 2f8507076581
security-arsenal is a skill published in the GitHub repository Gabson0x/bountyforge (455 stars, last pushed 1mo ago), with no licence file. It adds 126 tokens to every session and 9,724 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it E with 7 findings (hidden instructions, sends data to an external url, harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-14.
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