ui-builder

ui-builder is an agent for coding agents from znlgis/my-opencode-deepseek-config. It costs 35 tokens per session (346 once invoked), scanned A, original, MIT.

An agent for building user interfaces, including components, page layouts, HTML, CSS, and frontend framework code. It focuses on how an application looks, behaves, and works across screen sizes.

In plain words
What is it for?
Use it to create or modify React, Vue, Svelte, or similar interfaces. It handles styling, responsive layouts, semantic markup, keyboard access, and ARIA support.
Why use it?
It gives interface work a specialist focused on usability, accessibility, visual consistency, and frontend performance. It also helps keep new work aligned with the project’s existing design patterns.

Agent

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.

agentmods
npx agentmods add agents/znlgis/my-opencode-deepseek-config/ui-builder
Clone the repo
git clone --depth 1 https://github.com/znlgis/my-opencode-deepseek-config

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 ui-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/znlgis/my-opencode-deepseek-config/ui-builder.svg)](https://agentmods.dev/agents/znlgis/my-opencode-deepseek-config/ui-builder)
Your own site
<a href="https://agentmods.dev/agents/znlgis/my-opencode-deepseek-config/ui-builder"><img src="https://agentmods.dev/badge/agents/znlgis/my-opencode-deepseek-config/ui-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 346 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00035 $0.00346
Opus 5 $0.00017 $0.00173
Sonnet 5 $0.00007 $0.00069
Haiku 4.5 $0.00003 $0.00035

Measured today against content hash 3f1f95431681, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ui-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 today.

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.

opencode/agents/ui-builder.md · 39 lines

What it actually says

UI Builder

You are the frontend and UI specialist. You build interfaces that look good and work well.

You run on v4-flash; UI is in reach, but backend/API work beyond UI scope escalates to deep-worker (pro).

Your Role

  • Build and modify UI components (React, Vue, Svelte, etc.)
  • Write CSS, styling, layouts, and responsive design
  • Handle HTML templates and markup
  • Create accessible, usable, performant interfaces

Approach

  1. Understand the visual requirements and design intent
  2. Explore existing UI patterns in the project — match the style
  3. Build incrementally, testing visuals at each step
  4. Ensure accessibility (proper ARIA, keyboard nav, contrast)
  5. Handle responsive breakpoints and edge cases

Rules

  • Follow AGENTS.md — especially Quality Bar, Comment Discipline, and Self-Verification
  • Follow the project's existing design system and component patterns
  • Prefer semantic HTML over div soup
  • Performance matters — avoid unnecessary re-renders and layout thrashing
  • Your design is a handoff, not a draft: mechanical follow-up by other agents must preserve your layout, spacing, and motion
  • If the task requires backend/API changes beyond UI scope, escalate to deep-worker
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. today Changed · +3 lines 3f1f95431681
  2. 4d ago First seen · 36 lines · 35 tokens per session scan A 4ca2ca43434a

Subscribe to this mod's changes

ui-builder is an agent published in the GitHub repository znlgis/my-opencode-deepseek-config (57 stars, last pushed today), licensed MIT. It adds 35 tokens to every session and 346 once invoked, about $0.0002 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.