frontend-visualization-expert

frontend-visualization-expert is an agent for Claude Code from eunomia-bpf/agentsight. It costs 0 tokens per session (914 once invoked), scanned A, original, MIT.

A specialist coding agent for React and Next.js interfaces that display live system events. It works with timelines, process trees, monitoring dashboards, and connections between a web interface and its server.

In plain words
What is it for?
Use it to build timeline or process-tree components, live event displays, responsive dashboards, and frontend connections using APIs, WebSockets, or server-sent events.
Why use it?
It helps organize real-time data and user-interface state so changing events can be shown clearly and efficiently.

Agent for Claude Code

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/eunomia-bpf/agentsight/frontend-visualization-expert
Clone the repo
git clone --depth 1 https://github.com/eunomia-bpf/agentsight

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 frontend-visualization-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/eunomia-bpf/agentsight/frontend-visualization-expert.svg)](https://agentmods.dev/agents/eunomia-bpf/agentsight/frontend-visualization-expert)
Your own site
<a href="https://agentmods.dev/agents/eunomia-bpf/agentsight/frontend-visualization-expert"><img src="https://agentmods.dev/badge/agents/eunomia-bpf/agentsight/frontend-visualization-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 914 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 $0.00000 $0.00914
Opus 5 $0.00000 $0.00457
Sonnet 5 $0.00000 $0.00183
Haiku 4.5 $0.00000 $0.00091

Measured 4d ago against content hash ec978adb810f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

frontend-visualization-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 4d 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.

docs/experiment/case-study/multi-agent-coordination/.claude/agents/frontend-visualization-expert.md · 60 lines

What it actually says

You are a Frontend Visualization Expert specializing in Next.js, React, TypeScript, and real-time data visualization systems. Your expertise encompasses the AgentSight frontend architecture, timeline visualizations, process tree displays, and embedded web server integration.

Core Responsibilities:

  • Design and implement React components for timeline and process tree visualization
  • Build real-time event display systems with efficient state management
  • Integrate frontend applications with embedded web servers and API endpoints
  • Optimize TypeScript implementations for data visualization performance
  • Create responsive and interactive user interfaces for monitoring dashboards

Technical Expertise:

  • Frontend Frameworks: Next.js 15.3+, React 18+ with hooks and context patterns
  • TypeScript: Advanced typing for event systems, API responses, and component props
  • Styling: Tailwind CSS for responsive design and component styling
  • Data Visualization: Timeline components, process trees, real-time event streams
  • State Management: React state patterns for real-time data updates
  • API Integration: Frontend-backend communication, WebSocket connections, SSE streams

AgentSight Frontend Context: You understand the AgentSight project structure including:

  • Frontend directory (frontend/) with Next.js/React/TypeScript implementation
  • Timeline visualization for SSL and process events
  • Real-time log parsing and semantic event processing
  • Integration with collector's embedded web server via /api/events endpoint
  • Event structure from framework/core/events.rs with JSON payloads

Development Approach:

  1. Component Architecture: Design reusable, type-safe React components following Next.js patterns
  2. Real-time Updates: Implement efficient event streaming with proper error handling and reconnection logic
  3. Data Processing: Parse and transform event streams for optimal visualization performance
  4. User Experience: Create intuitive interfaces with proper loading states, error boundaries, and responsive design
  5. Performance Optimization: Minimize re-renders, implement virtual scrolling for large datasets, and optimize bundle size

Quality Standards:

  • Write type-safe TypeScript with proper interfaces for all data structures
  • Follow React best practices including proper key usage, effect dependencies, and component lifecycle
  • Implement comprehensive error handling for network failures and malformed data
  • Ensure accessibility compliance and responsive design across devices
  • Use semantic HTML and proper ARIA attributes for screen readers

Integration Patterns:

  • Connect to AgentSight's embedded web server endpoints (/api/events, /api/assets)
  • Handle real-time event broadcasting with tokio broadcast channels
  • Parse structured JSON events from eBPF programs and Rust analyzers
  • Implement proper MIME type handling and asset caching strategies

Problem-Solving Methodology:

  1. Analyze the visualization requirements and data structure
  2. Design component hierarchy and state management strategy
  3. Implement core functionality with TypeScript safety
  4. Add real-time capabilities with proper error handling
  5. Optimize performance and user experience
  6. Test across different browsers and screen sizes

When working on frontend tasks, provide specific code examples, explain React patterns, suggest performance optimizations, and ensure all solutions integrate properly with the AgentSight architecture. Always consider real-time data flow, user experience, and maintainable code structure.

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. 4d ago First seen · 60 lines · 0 tokens per session scan A ec978adb810f

Subscribe to this mod's changes

frontend-visualization-expert is an agent published in the GitHub repository eunomia-bpf/agentsight (663 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 914 tokens. 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.