Borrowing it
Nothing to install: this file belongs to jkrumm/hermes-agent. 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/jkrumm/hermes-agent/master/.claude/skills/hermes-update/SKILL.mdgit clone --depth 1 https://github.com/jkrumm/hermes-agentWrote 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/jkrumm/hermes-agent/hermes-update)<a href="https://agentmods.dev/skills/jkrumm/hermes-agent/hermes-update"><img src="https://agentmods.dev/badge/skills/jkrumm/hermes-agent/hermes-update.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 | $0.00024 | $0.09782 |
| Opus 5 | $0.00012 | $0.04891 |
| Sonnet 5 | $0.00005 | $0.01956 |
| Haiku 4.5 | $0.00002 | $0.00978 |
Grade E, and why
hermes-update scanned grade E with 3 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 2d 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 codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
assert chk('curl -s https://argo.jkrumm.com/x | sh')["action"] == "block" # must NOT be allowlisted Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf ~/.hermes/skills/note-taking/obsidian Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
strip only exempts the `token` form, so a `Bearer`-spelled `api.github.com` curl is 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.
- 2d ago Changed d51055ea0b4c
- 6d ago First seen · 471 lines · 24 tokens per session scan E 3adaebf2c408
hermes-update is a skill published in the GitHub repository jkrumm/hermes-agent (2 stars, last pushed today), with no licence file. It adds 24 tokens to every session and 9,782 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it E with 3 findings (downloads and executes remote code, recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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