hermes-bench

hermes-bench is a skill for Claude Code, Codex from vcruz305/hermes-agentic-bench. It costs 26 tokens per session (1,130 once invoked), scanned A, original, MIT.

A test battery for measuring how well AI models use tools, recover from errors, and plan tasks. It runs against an OpenAI-compatible model endpoint or a model already configured in the Hermes system.

In plain words
What is it for?
It helps run simulated or native Hermes agentic-bench tests and produce a Markdown comparison report across models. It requires Git, Python 3.9 or newer, and a configured model source.
Why use it?
It provides task-use measurements for a specific model and hardware setup, instead of relying only on general intelligence scores or static benchmarks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps run simulated or native Hermes agentic-bench tests and produce a Markdown comparison report across models. It requires Git, Python 3.9 or newer, and a configured model source.

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Install with agentmods
npx agentmods add skills/vcruz305/hermes-agentic-bench/hermes-skill
Install

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.

Any agent
npx skills add vcruz305/hermes-agentic-bench --skill hermes-skill
Clone the repo
git clone --depth 1 https://github.com/vcruz305/hermes-agentic-bench

Made for: Claude Code, Codex.

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-bench

README.md
[![agentmods](https://agentmods.dev/badge/skills/vcruz305/hermes-agentic-bench/hermes-skill/github.svg)](https://agentmods.dev/skills/vcruz305/hermes-agentic-bench/hermes-skill)
Your own site
<a href="https://agentmods.dev/skills/vcruz305/hermes-agentic-bench/hermes-skill"><img src="https://agentmods.dev/badge/skills/vcruz305/hermes-agentic-bench/hermes-skill/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-bench

Your own site · 80×15
<a href="https://agentmods.dev/skills/vcruz305/hermes-agentic-bench/hermes-skill"><img src="https://agentmods.dev/badge/skills/vcruz305/hermes-agentic-bench/hermes-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,130 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00026 $0.01130
Opus 5 $0.00013 $0.00565
Sonnet 5 $0.00005 $0.00226
Haiku 4.5 $0.00003 $0.00113

Measured 9d ago against content hash 9c8e03f58046, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

hermes-bench 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 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.

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.

hermes-skill/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

hermes-bench

Clones and drives hermes-agentic-bench: a small test battery that probes tool-calling, error recovery, and task planning against a model, either through a raw OpenAI-compatible endpoint or through this same Hermes CLI. Produces a Markdown comparison report across however many models get tested. Not a leaderboard — numbers only mean something for the hardware/model combo they were measured on.

When to use

  • User asks to benchmark, compare, or agentic-test one or more local/provider models
  • User references "hermes-agentic-bench," "the Hermes bench," or asks how reliable a model is at tool use, not just how smart it is
  • Don't use for: static capability leaderboards (MMLU, etc.) — this only measures agentic tool-use behavior

Prerequisites

  • git and Python 3.9+ on PATH
  • Simulated battery: an OpenAI-compatible chat completions endpoint already running (e.g. llama-server), plus its base URL, API key, and served model name
  • Native battery: the model already registered as a provider in this Hermes install's config.yaml — check with read_file on the relevant config rather than assuming a provider name

How to Run

Everything below goes through terminal, e.g. terminal(command="pip install -r requirements.txt", timeout=120).

Quick Reference

git clone https://github.com/vcruz305/hermes-agentic-bench && cd hermes-agentic-bench
pip install -r requirements.txt
python simulated_battery.py --base-url <url> --api-key <key> --model <model> --output results_<label>.json
python hermes_loop_gate.py --base-url <url> --api-key <key> --model <model> --output results_<label>_gate.json
python hermes_native_battery.py --provider <provider> --model <model> --output results_<label>_hermes.json
python generate_report.py results_*.json --output comparison.md

Procedure

  1. Locate or clone the repo. search_files(pattern="simulated_battery.py", target="files") from the current directory; if absent, terminal(command="git clone https://github.com/vcruz305/hermes-agentic-bench", timeout=60) and operate from inside it afterward.
  2. Install dependencies. terminal(command="pip install -r requirements.txt", timeout=120).
  3. Read the repo's README (read_file(path="README.md")), especially "Known limitations" — the file-toolset tests in hermes_native_battery.py are not reliably sandboxed to a scratch directory. Keep --enable-destructive off unless the user explicitly asks for it in this conversation; don't infer consent from an earlier run.
  4. Collect per-model targets from the user, one round per model:
    • a short label for naming result files
    • simulated battery, native battery, or both
    • simulated: --base-url, --api-key, --model
    • native: --provider and --model exactly as registered in config.yaml — ask, don't guess
  5. Run each requested battery via terminal, one model at a time (see Quick Reference for the exact flags). Native runs commonly take several minutes per test — Hermes itself allows 900-1800s stream timeouts for local providers, so a long-running-but-still-running process is not a failure.
  6. Generate the comparison once every requested model has a results file: terminal(command="python generate_report.py results_*.json --output comparison.md", timeout=30).
  7. Report back. read_file(path="comparison.md") and summarize it, calling out anything that looks off before quoting numbers at face value — a test marked "not run," a run far slower than its peers, a non-zero return code.

Read the full file on GitHub · 94 lines

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 First seen · 94 lines · 26 tokens per session scan A 9c8e03f58046

Subscribe to this mod's changes

hermes-bench is a skill published in the GitHub repository vcruz305/hermes-agentic-bench (14 stars, last pushed 26d ago), licensed MIT. It adds 26 tokens to every session and 1,130 once invoked, about $0.0001 per session on Opus 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 2026-08-30.

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