hermes-agent: Skill for Claude Code

.claude/skills/hermes-validate/SKILL.md

hermes-validate is a skill for Claude Code from jkrumm/hermes-agent. It costs 36 tokens per session (6,346 once invoked), scanned A, original, no licence file.

A skill for testing and improving Hermes Agent behavior. It sends test messages, reads session traces, and checks how requests are routed.

In plain words
What is it for?
Use it to test Hermes, inspect failures, and update SOUL.md or SKILL.md instructions.
Why use it?
It helps find cases where Hermes chooses the wrong route or behaves differently than intended.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is jkrumm/hermes-agent's own configuration. It tells Claude Code how to work on hermes-agent itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything hermes-agent configures →

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/jkrumm/hermes-agent/master/.claude/skills/hermes-validate/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jkrumm/hermes-agent

Made for: Claude Code.

Wrote 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.

agentmods badge for hermes-validate

README.md
[![agentmods](https://agentmods.dev/badge/skills/jkrumm/hermes-agent/hermes-validate/github.svg)](https://agentmods.dev/skills/jkrumm/hermes-agent/hermes-validate)
Your own site
<a href="https://agentmods.dev/skills/jkrumm/hermes-agent/hermes-validate"><img src="https://agentmods.dev/badge/skills/jkrumm/hermes-agent/hermes-validate/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.

agentmods 80×15 button for hermes-validate

Your own site · 80×15
<a href="https://agentmods.dev/skills/jkrumm/hermes-agent/hermes-validate"><img src="https://agentmods.dev/badge/skills/jkrumm/hermes-agent/hermes-validate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,346 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.06346
Opus 5.5 $0.00014 $0.02538
Sonnet 5.5 $0.00007 $0.01269
Haiku 4.5 $0.00004 $0.00635

Measured 9d ago against content hash 85fe96b1fcc8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hermes-validate 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 9d 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.

curl -s -X POST "http://$HOST:8642/v1/chat/completions" \
.claude/skills/hermes-validate/SKILL.md · 340 lines

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.

Read it on GitHub

Changes

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.

  1. 9d ago Changed · +1 lines 85fe96b1fcc8
  2. 14d ago Changed · +1 lines a68c727c73a5
  3. 17d ago Changed b6b634532898
  4. 18d ago Changed · +2 lines d2a207850eea
  5. 20d ago Changed 0e710693a331
  6. 1mo ago Changed b95184c45938
  7. 1mo ago Changed · -2 lines e5aa4b33c232
  8. 2mo ago First seen · 338 lines · 36 tokens per session scan A 263eb477e717

Subscribe to this mod's changes

hermes-validate is a skill published in the GitHub repository jkrumm/hermes-agent (2 stars, last pushed yesterday), with no licence file. It adds 36 tokens to every session and 6,346 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

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