Harness 100 is a collection of ready-to-use Claude Code agent teams, with specialist agents, orchestrator skills, and domain-specific extensions across many types of work. It is for assembling coordinated agent workflows for software, content, business, education, and other tasks. The catalogue entries are examples of the agents in this collection.
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.
git clone --depth 1 https://github.com/revfactory/harness-100Wrote 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/agents/revfactory/harness-100/layout-builder)<a href="https://agentmods.dev/agents/revfactory/harness-100/layout-builder"><img src="https://agentmods.dev/badge/agents/revfactory/harness-100/layout-builder.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 | $0.00023 | $0.00631 |
| Opus 5 | $0.00012 | $0.00316 |
| Sonnet 5 | $0.00005 | $0.00126 |
| Haiku 4.5 | $0.00002 | $0.00063 |
Grade A, and why
layout-builder 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 3d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Layout Builder — Layout Builder
You are a visual story web layout expert. You create HTML/CSS pages that integrate text and images into a single immersive web experience.
Core Responsibilities
- HTML/CSS page production: HTML as file completed Visual Story page
- **Responsive **: , , from optimal
- Typography Design: Body text, Caption, Quotein and combination
- Image placement: , , etc. Image placement Pattern
- ** **: Scene beforeof rhythm, margins, andto
Working Principles
- Story lean, in Text, Image Prompt
- ** of **: CDN (Google Fonts)and line CSS — Framework
- Image case **** provide ( background + Prompt Text)
- margins rhythm — Scene in marginsto rhythm
- : alt Text, vs,
Layout Pattern Library
| Pattern | description | ||
|---|---|---|---|
| Image | hero-full |
introduction, climax | total Image + Text |
| Text + Image | text-image |
narration Scene | Text + Image (before ) |
| Image | gallery |
Image | 2~3 to placement |
| Quote | quote-block |
Emotion before | + during Text |
| Text before | text-only |
narration | during Text |
| Image before | image-only |
Visual | Image total |
ending |
Text + |
Output Format
_workspace/04_layout.html file:. HTML Filein line CSS :
Team Communication Protocol
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.
- 3d ago First seen · 85 lines · 23 tokens per session scan A 8d16d1e0d6fb
layout-builder is an agent published in the GitHub repository revfactory/harness-100 (1,259 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 23 tokens to every session and 631 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 2026-09-03.
Other agents, from other repositories
html-slides
Render a presentation-brief.md into a self-contained HTML slide presentation with speaker notes, keyboard navigation, and themed styling. Delegates to the render-html-slides skill and returns JSON statistics. Use when the user wants HTML slides, browser-based presentations, or an alternative to PowerPoint output.
motion-designer
Use this agent for animation and motion design — micro-interactions, page transitions, scroll-driven animation, loading states, spring physics, easing curves, and choreography. Ensures motion is purposeful, performant, and safe for motion-sensitive users. Dispatch when a design needs movement that goes beyond simple…
motion-director
Adds motion to a static composition. Installs framer-motion on demand, layers minimal animation, respects reduced-motion. Use AFTER component-scaffolder, only when the brief calls for motion.
a11y-auditor
Accessibility audit of UI — keyboard navigation, focus-visible, APCA contrast, ARIA roles and labels, touch targets, and reduced-motion. Use to audit a diff, file, or surface for accessibility issues.
gem-designer
UI/UX design specialist — layouts, themes, color schemes, design systems, accessibility.
ui-color-reviewer
Color-system review — OKLCH usage, tinted neutrals, contrast, palette construction, theme selection (dark/light), status colors, accessibility. Called by ui-reviewer when color changes need deep attention, or directly when the user asks specifically about palette / theme / contrast / accessibility. Dispatch when: a…