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 solpbc/hopper --skill hopgit clone --depth 1 https://github.com/solpbc/hopperWrote 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/solpbc/hopper/hop)<a href="https://agentmods.dev/skills/solpbc/hopper/hop"><img src="https://agentmods.dev/badge/skills/solpbc/hopper/hop/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/solpbc/hopper/hop"><img src="https://agentmods.dev/badge/skills/solpbc/hopper/hop.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 | $0.00067 | $0.07696 |
| Opus 5.5 | $0.00027 | $0.03078 |
| Sonnet 5.5 | $0.00013 | $0.01539 |
| Haiku 4.5 | $0.00007 | $0.00770 |
Grade A, and why
hop 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 5d 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.
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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-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.
- 5d ago Changed · +7 lines 96275c893cad
- 6d ago Changed · +3 lines 15a33273e7fe
- 12d ago Changed · +4 lines 9c5f6fb32b20
- 26d ago Changed · +2 lines 7bd18c3260d6
- 27d ago Changed · +4 lines d9c4a552f1bd
- 1mo ago Changed ea1410678f61
- 1mo ago Changed · +2 lines 55f93e842c32
- 1mo ago Changed · +3 lines c9462582aa15
- 1mo ago First seen · 589 lines · 67 tokens per session scan A 9702eef3cca3
hop is a skill published in the GitHub repository solpbc/hopper (3 stars, last pushed 6d ago), licensed AGPL-3.0. It adds 67 tokens to every session and 7,696 once invoked, about $0.0003 per session on Opus 5.5. 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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