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 OnlyTerp/hermes-optimization-guide --skill hermes-offsite-backupgit clone --depth 1 https://github.com/OnlyTerp/hermes-optimization-guideWrote 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/onlyterp/hermes-optimization-guide/hermes-offsite-backup)<a href="https://agentmods.dev/skills/onlyterp/hermes-optimization-guide/hermes-offsite-backup"><img src="https://agentmods.dev/badge/skills/onlyterp/hermes-optimization-guide/hermes-offsite-backup/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/onlyterp/hermes-optimization-guide/hermes-offsite-backup"><img src="https://agentmods.dev/badge/skills/onlyterp/hermes-optimization-guide/hermes-offsite-backup.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 | $0.00015 | $0.00787 |
| Opus 5.5 | $0.00006 | $0.00315 |
| Sonnet 5.5 | $0.00003 | $0.00157 |
| Haiku 4.5 | $0.00002 | $0.00079 |
Grade B, and why
hermes-offsite-backup scanned grade B 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 21d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
3. **Install the script.** Copy `scripts/offsite-backup.sh` from this skill into `~/.hermes/scripts/offsite-backup.sh`. Fill in the three values at the top, then run `chmod 700` on it. How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Hermes Off-Machine Backup
Nightly hermes backup, encrypted with age to a public key whose private half lives elsewhere, copied to a destination the user picks. It runs as a zero-token cron job that only messages the user when something fails.
When to Use
- The user wants Hermes backed up somewhere other than the machine it runs on.
- Before relying on an always-on Hermes host for anything important.
Procedure
-
Ask; don't guess. You need three things from the user:
- an age public key (
age1…). Its private key must not be on this machine. - a destination: an rclone remote path (for example
b2:my-bucket/hermes) or an scp target (user@host:/backups/hermes). - a local staging directory (default
~/hermes-backups).
- an age public key (
-
Check the tools with the terminal tool:
age --version rclone version || command -v scpIf
ageis missing, tell the user how to install it for their OS rather than installing it yourself. -
Install the script. Copy
scripts/offsite-backup.shfrom this skill into~/.hermes/scripts/offsite-backup.sh. Fill in the three values at the top, then runchmod 700on it. -
Test it once by hand and show the user the result:
bash ~/.hermes/scripts/offsite-backup.sh && echo "backup ok"The script prints nothing on success and one line on failure.
-
Schedule it with no model involved. Output is delivered only when the script prints something, which happens only on failure:
hermes cron create "0 3 * * *" --no-agent --script offsite-backup.sh \ --name offsite-backup --deliver telegramUse whatever delivery target the user prefers, or
local. -
Explain the restore path and have the user try it once, on the machine that holds the private key:
age -d -i ~/.config/age/key.txt -o hermes-backup.zip hermes-backup-YYYYMMDD-HHMMSS.zip.age hermes import hermes-backup.zip
Verification
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 21d ago First seen · 77 lines · 15 tokens per session scan B dedd75e3d304
hermes-offsite-backup is a skill published in the GitHub repository OnlyTerp/hermes-optimization-guide (696 stars, last pushed 22d ago), licensed MIT. It adds 15 tokens to every session and 787 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-25.
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