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 btseytlin/ultrapack --skill uverifygit clone --depth 1 https://github.com/btseytlin/ultrapackWrote 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/btseytlin/ultrapack/uverify)<a href="https://agentmods.dev/skills/btseytlin/ultrapack/uverify"><img src="https://agentmods.dev/badge/skills/btseytlin/ultrapack/uverify.svg" alt="Measured on agentmods" 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 | $0.00076 | $0.02839 |
| Opus 5 | $0.00038 | $0.01419 |
| Sonnet 5 | $0.00015 | $0.00568 |
| Haiku 4.5 | $0.00008 | $0.00284 |
Grade A, and why
uverify scanned grade A 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 7d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- API change → `curl` against a running server The source is not reproduced here
Licensed WTFPL
The repository is licensed WTFPL, 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.
- 7d ago First seen · 224 lines · 76 tokens per session scan A a8b766f9a215
uverify is a skill published in the GitHub repository btseytlin/ultrapack (47 stars, last pushed yesterday), licensed WTFPL. It adds 76 tokens to every session and 2,839 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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