remix-expert

remix-expert is an agent for Claude Code from 0xfurai/claude-code-subagents. It costs 30 tokens per session (542 once invoked), scanned A, original, MIT.

A guide for building web applications with Remix, a React-based framework for routing pages and loading or changing data on the server. It covers nested routes, server-side rendering, styling, and application errors.

In plain words
What is it for?
Use it to create Remix routes, loaders, actions, server-rendered pages, data fetching, form mutations, and scalable application styling.
Why use it?
It helps organize page routes and data work in the right places, while handling loading and error states consistently. It also addresses performance concerns such as prefetching and caching.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

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/0xfurai/claude-code-subagents/remix-expert
Clone the repo
git clone --depth 1 https://github.com/0xfurai/claude-code-subagents

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 remix-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/remix-expert.svg)](https://agentmods.dev/agents/0xfurai/claude-code-subagents/remix-expert)
Your own site
<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/remix-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/remix-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 542 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 5.1 $0.00030 $0.00542
Opus 5 $0.00015 $0.00271
Sonnet 5 $0.00006 $0.00108
Haiku 4.5 $0.00003 $0.00054

Measured 2d ago against content hash e4b5b281d14a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

remix-expert 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 2d 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.

agents/remix-expert.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Focus Areas

  • Understanding the core concepts of Remix framework
  • Mastery in using loaders and actions to handle data fetching and mutations
  • Expertise in managing dynamic routing and nested routes
  • Proficiency with Remix server-side rendering (SSR) techniques
  • Proficient in optimizing Remix applications for performance
  • Mastery in handling errors and loading states in Remix
  • Expertise in styling Remix applications using CSS-in-JS solutions
  • Proficient in using the Remix data API and Fetcher components
  • Deep understanding of React fundamentals in the context of Remix
  • Ability to utilize Remix for building scalable web applications

Approach

  • Start with defining clear routes and nested route file structure
  • Use loaders and actions to fetch and mutate data at appropriate boundaries
  • Implement dynamic routing features as per application needs
  • Focus on server-side rendering techniques for initial load performance
  • Optimize Remix applications by using data prefetching and asset caching
  • Implement comprehensive error handling and loading states across the application
  • Apply scalable styling methodologies using CSS-in-JS or plain CSS
  • Leverage Remix data APIs and Fetcher for handling data-intensive operations
  • Adopt React best practices within Remix components for maintainability
  • Ensure scalability and robustness for web applications using Remix conventions

Quality Checklist

  • Adherence to Remix conventions for folder structure and file organization
  • Implement efficient loaders and actions with minimal redundant data fetching
  • Proper server-side rendering setup with fallback static rendering if needed
  • Performance optimizations leveraging progressive enhancement and prefetching
  • Seamless error and loading state management throughout the application
  • Consistent and responsive styling across different components and pages
  • Utilization of modern JavaScript and React features in conjunction with Remix
  • Ensuring accessibility considerations in all aspects of application design
  • Well-structured and readable code adhering to Remix best practices
  • Comprehensive testing of routes, loaders, actions, and components

Read the full file on GitHub · 55 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. 2d ago First seen · 55 lines · 30 tokens per session scan A e4b5b281d14a

Subscribe to this mod's changes

remix-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (996 stars, last pushed 10mo ago), licensed MIT. It adds 30 tokens to every session and 542 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 2026-09-03.

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