Hermes Agent is an AI assistant that learns from its use by creating and improving skills, retaining knowledge, searching past conversations, and adapting to its users. It is for people who want to run an agent through a terminal or messaging platforms while connecting it to different AI models and scheduled tasks.
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 NousResearch/hermes-agent --skill mono-colorgit clone --depth 1 https://github.com/NousResearch/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/nousresearch/hermes-agent/mono-color)<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/mono-color"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/mono-color/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/nousresearch/hermes-agent/mono-color"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/mono-color.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 | $0.02650 |
| Opus 5.5 | $0.00006 | $0.01060 |
| Sonnet 5.5 | $0.00003 | $0.00530 |
| Haiku 4.5 | $0.00002 | $0.00265 |
Grade A, and why
mono-color 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mono-Color Editorial Print Skill
Turn any user theme, sentence, or reference photo into an original printed editorial artifact with one stable visual language: adaptive neutral substrate + one or two inks + mechanically reproduced image + typographic tension + concise human voice.
This skill designs and generates the image; it does not imitate any one reference, copy a source composition, wording, logo, or artwork, and it never uses more than two printing inks.
When to Use
The user asks for a monochrome editorial poster, duotone print, risograph/zine poster, halftone photo treatment, one-ink or two-ink cover, or names the mono-color style. Chinese trigger vocabulary includes 单色海报、双色印刷、单色调视觉、蓝色/绿色孔版印刷、网点照片、复古或当代编辑排版. Do not trigger merely because a request mentions a color.
Prerequisites
- The Hermes
image_generatetool (search/describe it via the deferred-tool catalog if not loaded). If image generation is unavailable, deliver prompt-only and say so. - The
design-system/catalogs bundled with this skill (see Quick Reference).
Quick Reference
Print modes:
| Mode | When |
|---|---|
| Pure one-ink | User explicitly requests one ink, monochrome, or one named ink without a second color |
| Chromatic ink + black | Quiet, observational, natural, architectural, long-form subjects; chromatic plate carries the image, carbon/charcoal carries text |
| Complementary duotone | General default; dominant plate 70–85%, accent 15–30% with a specific role; fallback pair Cobalt + Terracotta #2148B8 + #C65F38 |
| Overprint duotone | Two plates deliberately overlap; the darker mixed zone is not a third ink |
Catalogs (source of truth — when an exact value differs, the catalog wins over any prose; read only the catalog relevant to the current decision):
| File | Provides |
|---|---|
design-system/colors.json |
Substrate IDs + exact hex, one-ink palette, approved two-ink pairs |
design-system/compositions.json |
Layout-family IDs and geometry |
design-system/typography.json |
Type-hierarchy role IDs |
design-system/rhythm.json |
Visual tension profiles, focal events, unresolved edges |
design-system/imperfections.json |
Controlled print-imperfection effect IDs and ranges |
design-system/carriers.json |
Carrier signals (poster, journal page, cover, etc.) |
What ships with it
10 files 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.
- design-system/carriers.json 1.6 KB
- design-system/colors.json 4.2 KB
- design-system/compositions.json 2.3 KB
- design-system/imperfections.json 1.5 KB
- design-system/rhythm.json 2.7 KB
- design-system/typography.json 4.1 KB
- LICENSE.txt 1.0 KB
- references/composition.md 6.1 KB
- references/quality-gate.md 4.3 KB
- references/visual-language.md 11 KB
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.
- 1mo ago First seen · 144 lines · 15 tokens per session scan A 71c7b67ffc20
mono-color is a skill published in the GitHub repository NousResearch/hermes-agent (254,428 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 2,650 once invoked, about $0.0001 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 2026-09-14.
Other skills, from other repositories
artifact-design
Design guidance and fundamentals for Artifacts.
design-sync
Push a React design system to claude.ai/design. This runs a converter that bundles the real component code (from Storybook or a bare package) and uploads it. Use when the user runs /design-sync or says "sync my design system to Claude Design".
create-design-system
Skill to use if user asks you to create a design system or UI kit.
design
How to fill and revise a canvas made from the Design (canvas) appifact type.
canva
Create and edit Canva designs, generate images, remove backgrounds, recover editable layers, and work with Canva libraries. Use for branded presentations and slide decks, campaign artwork, flyers and banners, applying saved brand kits and templates, and resizing designs for social posts and stories through Canva's…
hi-fi-design
The design process for high-fidelity, polished work — the system prompt tells Claude to invoke it before starting any design.