Borrowing it
Nothing to install: this file belongs to dtammam/arcade_station. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/dtammam/arcade_station/main/.claude/agents/security-brief.mdgit clone --depth 1 https://github.com/dtammam/arcade_stationWrote 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/agents/dtammam/arcade_station/security-brief)<a href="https://agentmods.dev/agents/dtammam/arcade_station/security-brief"><img src="https://agentmods.dev/badge/agents/dtammam/arcade_station/security-brief/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/agents/dtammam/arcade_station/security-brief"><img src="https://agentmods.dev/badge/agents/dtammam/arcade_station/security-brief.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 | $0.00000 | $0.01282 |
| Opus 5.5 | $0.00000 | $0.00513 |
| Sonnet 5.5 | $0.00000 | $0.00256 |
| Haiku 4.5 | $0.00000 | $0.00128 |
Grade B, and why
security-brief scanned grade B with 2 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 15d 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.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
- **Network boundary.** SSRF, unvalidated outbound requests, `curl | bash` 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.
- **Network boundary.** SSRF, unvalidated outbound requests, `curl | bash` The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 15d ago First seen · 100 lines · 0 tokens per session scan B 039f8a79243d
security-brief is an agent published in the GitHub repository dtammam/arcade_station (28 stars, last pushed 1mo ago), licensed GPL-3.0. It costs nothing until one of its globs matches a file; then it loads 1,282 tokens. A static security scan graded it B with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-14.
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