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 adamlinscott/claude-skills --skill seatbeltsgit clone --depth 1 https://github.com/adamlinscott/claude-skillsWrote 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/adamlinscott/claude-skills/seatbelts)<a href="https://agentmods.dev/skills/adamlinscott/claude-skills/seatbelts"><img src="https://agentmods.dev/badge/skills/adamlinscott/claude-skills/seatbelts/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/adamlinscott/claude-skills/seatbelts"><img src="https://agentmods.dev/badge/skills/adamlinscott/claude-skills/seatbelts.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 | $0.00114 | $0.00267 |
| Opus 5 | $0.00057 | $0.00133 |
| Sonnet 5 | $0.00023 | $0.00053 |
| Haiku 4.5 | $0.00011 | $0.00027 |
Grade A, and why
seatbelts 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 today.
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
Seatbelts (alias)
This is an alias so that both /seatbelt and /seatbelts work.
Read skills/seatbelt/SKILL.md — resolve it relative to this file's parent directory
(../seatbelt/SKILL.md), or at ~/.claude/skills/seatbelt/SKILL.md when installed — and follow
it in full. Pass through any flags the user gave.
Do not duplicate the workflow here. One source of truth: a divergent copy of a permission policy is worse than no copy.
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.
- today Changed · +4 tokens per session 8a4a98237dcb
- 11d ago First seen · 18 lines · 110 tokens per session scan A 546e11434de9
seatbelts is a skill published in the GitHub repository adamlinscott/claude-skills (3 stars, last pushed today), licensed MIT. It adds 114 tokens to every session and 267 once invoked, about $0.0006 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 2026-08-31.
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